Coil Surrounds Valve Port Or Flow Line Patents (Class 251/129.21)
  • Patent number: 6662976
    Abstract: A dosing spout for mounting on a container has a liquid outlet valve which, at placing of the spout in an electric field, can be actuated by the field for opening of outflow of liquid directly from the container and out through the mouth of the spout, and an air inlet valve which can let air from the surroundings directly into the container as compensation for the quantity of liquid flowing out. The armature of the liquid outlet valve and the armature of the air inlet valve are arranged consecutively in their longitudinal direction of displacement.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: December 16, 2003
    Assignee: Lindberg & Jensen ApS
    Inventors: Bjørn Slot Jensen, Frank Lindberg, Peter Lindberg
  • Patent number: 6655612
    Abstract: The present invention provides a solenoid actuated fuel injector. The fuel injector includes a housing having a fuel inlet, a fuel outlet, and a fuel passageway extending along a longitudinal axis. The fuel injector additionally includes a valve body having an inlet portion and an armature guide eyelet that is disposed in the inlet portion of the valve body within the fuel passageway. A closure assembly includes an upper bearing guide fixedly connected to a stem portion. The upper bearing guide includes a bearing portion and a contacting portion. The armature guide eyelet includes a first portion circumscribing the upper bearing guide portion, and a second portion engaging the upper bearing guide contacting portion. Methods of mechanically insuring a repeatable stroke of a closure assembly and operating a closure assembly within a solenoid actuated fuel injector are also provided.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: December 2, 2003
    Assignee: Siemens Automotive Corporation
    Inventor: Jack David Oliver
  • Patent number: 6651953
    Abstract: A valve structure that includes a housing, a valve, and an actuator. The housing includes a first portion, a second portion, and an intermediate portion. The first portion extends along a first axis from a first port, the second portion extends along a second axis from a second port, and the intermediate portion connects the first and second portions. The first and second portions partially define a fluid communication path between the first and second configurations. The valve is movable with respect to the housing between first and second configurations. The first configuration permits substantially unrestricted fluid flow between the first and second ports. The second configuration substantially prevents fluid flow between the first and second ports. The actuator displaces the valve from the first configuration to the second configuration. The actuator partially defines the fluid communication path between the first and second ports.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: November 25, 2003
    Assignee: Siemens Automotive Inc.
    Inventor: Craig Weldon
  • Patent number: 6648298
    Abstract: The present invention provides a fuel injection valve including a stationary core and a movable core having one end opposed to one end of the stationary core, the movable core being movable toward the one end of the stationary core upon magnetization of the stationary core and a valve on the other end of the movable core and movable with the movable core, the valve being supported by a valve seat base and a cylindrical body extends from at least the stationary core to the base.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: November 18, 2003
    Assignees: Hitachi Car Engineering Co., Ltd., Hitachi, Ltd.
    Inventors: Masahiro Souma, Yasuo Namaizawa, Hiromasa Kubo
  • Patent number: 6648248
    Abstract: A solenoid valve is provided which may be used to inject fuel into an internal combustion engine for automotive vehicles. The solenoid valve includes an armature and stator attracting the armature to open a fluid passage. The solenoid valve also includes a retaining nut and an end body. The retaining nut engages a housing to retain a hollow cylindrical stator casing in the housing. The end body is joined to the casing in alignment therewith to hold the stator within the casing without subjecting the stator to the pressure produced by the engagement of the retaining nut with the housing. This minimizes undesirable loads on the stator.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: November 18, 2003
    Assignee: Denso Corporation
    Inventors: Naofumi Adachi, Koichi Ohata, Motoichi Murakami
  • Publication number: 20030189183
    Abstract: The method according to the present invention for manufacturing a magnet coil for a valve is characterized in that first a metal base element (2) of the valve is made available, then an electrically insulating winding support (50) is mounted on the outer wall of the base element (2), and lastly a winding (4) of the magnet coil (1) is introduced into the winding support (50).
    Type: Application
    Filed: February 24, 1999
    Publication date: October 9, 2003
    Inventors: KLAUS NOLLER, DIETER MAIER
  • Patent number: 6626150
    Abstract: A fuel pressure regulator is provided for producing more than one fuel pressure. The fuel pressure regulator includes a pressure plate that restricts fuel flow between an input line and an output line. A spring is provided for applying a force to the pressure plate. A coil and armature are also provided. The coil attracts the armature to a casing or head pole, thus applying more force to the pressure plate.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: September 30, 2003
    Assignee: Visteon Global Technologies, Inc.
    Inventor: Rodolfo Palma
  • Publication number: 20030178006
    Abstract: This invention is an armature and an armature driving device in which the armature is rotated around its axis so as to inhibit uneven wear from occurring between the armature and a housing. That is, an armature which is slidably provided within a housing filled with fluid and which divides the inside of the housing into two fluid chambers is further provided with a communicating hole that enables the fluid to pass between the two fluid chambers. This communicating hole is formed such that the fluid passing through the communicating hole and out from the armature when the armature slides flows out at an angle to, and to the side of, a center axis of the armature.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 25, 2003
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventor: Kazuyuki Fukuhara
  • Patent number: 6616073
    Abstract: In a fuel injection valve in which an outer frame member is press fitted to a limited region of an outer circumference of an inner pipe member in a state that a drive coil is radially sandwiched therebetween, a valve lift amount is accurately adjusted by press fitting the attracting member to the inner pipe member without being adversely affected by a possible deformation of the inner circumference of the inner pipe member on press fitting the outer frame member to the inner pipe member due to a relief space provided in the inner circumference of the inner pipe member for preventing the outer circumference of the attracting member from contacting the inner circumference of the inner pipe member at least at a position just radially inside and axially corresponding to the limited region.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: September 9, 2003
    Assignee: Denso Corporation
    Inventor: Koichi Sugiyama
  • Publication number: 20030146400
    Abstract: A fuel injector (1), especially a fuel injector for fuel injection systems in internal combustion engines, has a valve needle (3) whose valve-closure member (4) cooperates with a valve seat surface (6) to form a sealing seat, and has an armature (20) engaging with the valve needle (3), the armature (20) being arranged on the valve needle (2) in an axially movable manner and being damped by a damping element (32) including an elastomer. A ring space (37) is formed between damping element (32) and valve needle (3) which is filled with fuel, ring space (37) being in contact with a throttle gap (39).
    Type: Application
    Filed: July 24, 2002
    Publication date: August 7, 2003
    Inventor: Martin Mueller
  • Publication number: 20030146402
    Abstract: To provide a small-sized and low-cost proportional solenoid valve which is capable of controlling a bidirectional fluid flow. A core is fixed in a pipe, and a hollow shaft having an extreme end thereof closed by a valve seat and a portion adjacent thereto formed with valve holes is fixed in the core. Within the pipe, there are arranged a hollow cylindrical valve element axially movable using the shaft as a guide and urged in a direction away from the core by a spring, for opening and closing the valve holes, and a plunger, while outside the pipe, there is arranged a solenoid coil. The proportional solenoid valve has a body formed by the pipe, and the component parts for opening and closing the valve are arranged within the pipe, so that it is possible to reduce the size of the proportional solenoid valve, the number of component parts, and machining costs and material costs, which contributes to reduction of costs of the valve.
    Type: Application
    Filed: December 2, 2002
    Publication date: August 7, 2003
    Applicant: TGK Co., Ltd.
    Inventors: Hisatoshi Hirota, Tokumi Tsugawa, Katsumi Koyama, Toshiyuki Shiota, Yuusuke Inoue
  • Patent number: 6601786
    Abstract: In a fuel injection valve, a cylindrical valve body has a valve seat protruding radially inward out of an inner wall thereof and a needle supporting cylindrical inner wall. A nozzle needle is fixed to the armature so as to move together with the armature, while being supported slidably by the needle supporting cylindrical inner wall. The nozzle needle is provided with a valve portion to be seated on the valve seat when a coil is de-energized and inside thereof with a cavity into which fuel is introduced. A fuel accumulation bore is provided between inner circumference of the cylindrical valve body and outer circumference of the nozzle needle. With the construction mentioned above, the nozzle needle is provided with an opening through which the cavity communicates with the fuel accumulation bore.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: August 5, 2003
    Assignee: Denso Corporation
    Inventors: Yukio Yamaguchi, Takayuki Hokao
  • Publication number: 20030141476
    Abstract: A fuel injector (1), in particular for direct injection of fuel into the combustion chamber of an internal combustion engine having fuel mixture compression and spark ignition, includes an armature (20) which cooperates with a solenoid (10), and a valve needle (3) connected to the armature (20), on which valve needle a valve-closure member (4) is provided which together with a valve-seat surface (6) forms a sealing seat. The valve needle (3) passes through the armature (20) and an extension (15) formed on the armature (20) in such a way that a pin (32) may be inserted into a bore (34) in the extension (15) of the armature (20), whose alignment coincides axially and radially with a bore (35) in the valve needle (3), so that an axial pre-lift gap (30) is formed between the armature (20) and the valve needle (3).
    Type: Application
    Filed: October 28, 2002
    Publication date: July 31, 2003
    Inventor: Thomas Sebastian
  • Publication number: 20030132411
    Abstract: A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that is secured at the second end of the tube assembly and that defines an opening; an armature assembly that is disposed within the tube assembly; a member that biases the armature assembly toward the seat; an adjusting tube that is disposed in the tube assembly and that engages the member for adjusting a biasing force of the member; a filter that is located at the first end of the tube assembly and that has an integral retaining portion; an O-ring that circumscribes the first end of the tube assembly and that is maintained by the retaining portion of the filter; and a first attachment portion.
    Type: Application
    Filed: December 29, 2000
    Publication date: July 17, 2003
    Inventors: Michael P. Dallmeyer, Robert McFarland, Michael J. Hornby
  • Patent number: 6588726
    Abstract: A load bearing solenoid operated valve having a one piece body with threads on opposite ends thereof for connection to a system placing the valve in tension or compression. An inlet port is formed in one end of the body and a plurality of cross ports are formed to communicate with the inlet. A sleeve valve/armature member which is magnetizable is slidably received over the body and has radial ports which are moved axially for valving the body cross ports. An annular flux collector ring and a pole piece are disposed on the body on opposite axial sides of the sleeve valve. A bobbin with coil thereon is received over the body and sleeve and a magnetically permeable cover over the coil completes the flux loop about the coil.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: July 8, 2003
    Assignee: Eaton Corporation
    Inventors: Daniel J. Osterhart, Lewis W. Lake
  • Patent number: 6530558
    Abstract: A valve for the metered introduction of fuel, evaporated from the fuel tank of an internal combustion engine, into an intake conduit of the engine, having a valve closing member (27), which is disposed between a valve seat body (22) and a magnet core (15) of an electromagnet (13) and which has at least one through opening (28) and is urged in the valve closing direction by a restoring means (31) and is actuatable in the valve opening direction by the electromagnet (13), and having a damping element (60), disposed in the valve closing member (27), which protrudes axially through the valve closing member (27), is characterized in that facing at least one valve opening (25) disposed in the valve seat body (22) is a further opening (29), disposed in the valve closing member (27), which opening is embodied in essentially the same shape as the at least one valve opening (25) but larger than it and is covered, on its face end toward the valve seat body (22), by the damping element (60).
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: March 11, 2003
    Assignee: Robert Bosch GmbH
    Inventor: Wolfgang Schulz
  • Publication number: 20030038263
    Abstract: Electromagnetic actuator for a fuel injector; the electromagnetic actuator is provided with an electromagnet, which has a fixed magnetic core which is delimited at the base by a first annular contact surface, and with an anchor, which is mechanically integral with a shutter, it can be displaced against the action of a spring towards the magnetic core by the effect of the force of magnetic attraction produced by the electromagnet, and is delimited at the top by a second annular contact surface, which is parallel to, and faces the first contact surface; between the two contact surfaces there is interposed an annular separation body, which is substantially flat, is made of non-magnetic material, and is integral with the magnetic core or with the anchor.
    Type: Application
    Filed: July 26, 2002
    Publication date: February 27, 2003
    Inventors: Lorenzo Battistini, Massimo Neretti, Andrea Ricci
  • Patent number: 6523759
    Abstract: A fuel injector having a reduced bounce armature is disclosed. The fuel injector includes an upstream end, a downstream end, and a valve seat located at the downstream end. The armature located between the upstream end and the downstream end and includes an upstream armature end; a downstream armature end; and a longitudinal channel extending therethrough. The longitudinal channel includes an upstream portion having a first cross-sectional area and a downstream portion having a second cross-sectional area, with the second cross-sectional area being smaller than the first cross-sectional area. The downstream portion includes at least one interior wall. The armature also includes a flow restrictor element inserted into the downstream portion of the longitudinal channel such that liquid flow from the downstream armature end to the upstream armature end is restricted. The fuel injector further includes a needle located in the longitudinal channel downstream of the transverse channel.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: February 25, 2003
    Assignee: Siemens Automotive Corporation
    Inventor: Angelo D'Arrigo
  • Patent number: 6520434
    Abstract: A fuel injector valve for fuel injection systems of internal combustion engines has a magnetic coil, an armature to which the magnetic coil applies a force against a resetting spring in the lifting direction, and a valve needle connected to a valve closing member. The armature is able to move between a first stop connected to the valve needle and limiting the movement of the armature in the lifting direction and a second stop connected to the valve needle and limiting the movement of the armature against the lifting direction. The second stop is formed by a spring element.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: February 18, 2003
    Assignee: Robert Bosch GmbH
    Inventor: Ferdinand Reiter
  • Patent number: 6511042
    Abstract: A valve, in particular for tank venting in motor vehicles, having a short-circuit yoke (40), having at least one valve opening (42) and having a spring-loaded valve member (50) which cooperates for opening and closing the at least one valve opening (42) and which, forming a magnet armature of an electromagnet (13), is disposed between the short-circuit yoke (40) of the electromagnet (13) and a magnet core (15) of the electromagnet (13), wherein the valve member (50) is fastened to the short-circuit yoke (40) by means of a centering spring (60), which is fastened at at least two fastening points (71) each to the valve member (50) and at least two fastening points (70) to the short-circuit yoke and has at least two short spring arms (62) and at least two long spring arms (63), one each between a fastening point (70) on the valve member and a fastening point (71) on the short-circuit yoke, is characterized in that the short spring arms (62) extend in a curved meandering fashion.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: January 28, 2003
    Assignee: Robert Bosch GmbH
    Inventor: Wolfgang Schulz
  • Patent number: 6508418
    Abstract: An electromagnetically actuable fuel injector for an internal combustion engine is disclosed having an outer housing, a fuel inlet connector positioned in the upper end portion of the outer housing for reception of fuel therein, and an armature having a valve needle attached thereto and positioned adjacent the fuel inlet connector and spaced therefrom by a working gap. The armature defines a generally elongated central opening to receive fuel flow from the fuel inlet connector and has valve needle attached thereto which interacts with a fixed valve having a fixed valve seat associated with the housing to selectively permit fuel to flow through a valve aperture associated with the fixed valve seat.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: January 21, 2003
    Assignee: Siemens Automotive Corporation
    Inventors: James Paul Fochtman, Danny Orlen Wright, James H. Cohen
  • Patent number: 6494389
    Abstract: A fuel injector including a fuel intake, having an excitable actuating device using which a valve-closure member can be moved, having a fixed valve seat configured on a valve seat element, with which valve-closure member cooperates for opening and closing the valve. Also included in the fuel injector are a fuel outlet provided downstream of the valve seat, and a sleeve-shaped connecting part, that has an interior longitudinal opening and that receives the valve seat element. The thin-wall connecting part has formations that increase the rigidity and prevent a bending or a folding of the connecting part, the formations being executed in the shape of longitudinal creases. The valve is particularly well-suited for use in fuel injection systems of mixture-compressing, spark-ignited internal combustion engines.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: December 17, 2002
    Assignee: Robert Bosch GmbH
    Inventor: Ferdinand Reiter
  • Patent number: 6484700
    Abstract: An air assist fuel injector having an armature and a solenoid for actuating the armature. The armature includes a conduit having a conical portion for delivering liquid fuel and gas to a poppet of the air assist fuel injector. The conduit includes an inlet for receiving the liquid fuel and gas from a cap of the air assist fuel injector. The cap includes a number of channels for delivering the liquid fuel and gas, and the outlets of the channels are located radially inward of the periphery of the inlet to the armature conduit. The armature also includes a flow path located between an area upstream of the inlet to the armature and an area downstream of the armature. The flow path may include one or more recesses in the armature or one or more recesses in an armature guide of the air assist fuel injector.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: November 26, 2002
    Assignee: Synerject, LLC
    Inventors: James Allen Kimmel, Scott P. Dillon
  • Patent number: 6474572
    Abstract: A fuel-injection valve includes a fuel-injection hole, a valve element and a valve seat for opening and closing the fuel-injection hole, a force-applying member for applying force to the valve element in a direction of motion of the valve element, and a drive unit for applying force to the valve element in the direction opposite to that of the force applied by the force-applying member; wherein a secondary oscillation system, which interacts with a primary oscillation system including the valve element and the force-applying member, is added to the primary oscillation system, and the phase angle of force applied to the primary oscillation system by the secondary oscillation system is also staggered from that of force applied to the primary oscillation system, which is other than the force applied to the primary oscillation system by the secondary oscillation system, whereby the bouncing of the valve element during opening and closing of the valve is reduced, which in turn makes it possible to achieve very acc
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: November 5, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Tsuchiya, Tosuke Hirata, Yoshio Okamoto, Tohru Ishikawa, Noriyuki Maekawa, Yoshiyuki Tanabe, Atsushi Sekine, Yuzo Kadomukai, Makoto Yamakado, Motoyuki Abe
  • Patent number: 6467495
    Abstract: An evaporative control valve for a vehicle, the valve has a valve body for containing a solenoid that manipulates a plunger between an open position and a closed position, the plunger has a valve end and an adjustment end. The valve body also has a receiving area, a first port, as well as a conduit for connecting the first port to the receiving area. A port member is received and engaged within the receiving area and the port member provides a passageway from the receiving area to outside the valve body and the valve end seals the passageway when the plunger is in its closed position. The first port is aligned with and provides access to set the stroke of the solenoid.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: October 22, 2002
    Assignee: Delphi Technologies, Inc.
    Inventor: Mark Anthony Shost
  • Patent number: 6463951
    Abstract: An evaporative control valve for a vehicle. The valve has a valve body for containing a solenoid that manipulates a plunger between an open position and a closed position, the plunger has a valve end and an adjustment end. The valve body also has a receiving area, a first port, as well as a conduit for connecting the first port to the receiving area. A port member is received and engaged within the receiving area and the port member provides a passageway from the receiving area to outside the valve body and the valve end seals the passageway when the plunger is in its closed position. The first port is aligned with and provides access to set the stroke of the solenoid.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: October 15, 2002
    Assignee: Delphi Technologies, Inc.
    Inventor: Mark Anthony Shost
  • Patent number: 6457614
    Abstract: A faucet comprises a valve body having a bore, an inlet port and an outlet port. A plunger is disposed in the valve body and is reciprocated in the bore. The inlet port opens into a fluid passage adapted for connection to a pressurized source, and the outlet port opens into a dispensing spigot adapted to discharge materials from the faucet. A handle having a pivotal lever is disposed in the valve body and engages the plunger to reciprocate longitudinally through the bore. A plug is mounted on the plunger and has axial and radial sealing surfaces. The plug is forced against the axial valve seat when the valve is closed to deform in both axial and radial directions. The plunger is alternatively designed with channels on its exterior and passages through its interior for use with low-viscosity fluids and with a sealing arrangement for use with high-viscosity fluids. The dispensing spigot can be removed to ease access to the plug for cleaning.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: October 1, 2002
    Assignee: Vent-Matic Co., Inc.
    Inventor: Bradford G. Amidzich
  • Patent number: 6454191
    Abstract: An electromagnetic fuel injector comprises a body with a fuel inlet and a fuel outlet and a base that comprises a valve seat connected to the body. A moveable valve assembly comprising an armature and a valve outlet member is disposed at the fuel outlet for controlling the flow of fuel from the outlet. Positioned between the armature and valve outlet member is a dampening device that acts on the moveable valve assembly to reduce bounce of the valve outlet member at the valve seat. An electromagnetic fuel injector comprises a body with a fuel inlet and a fuel outlet and a base that comprises a valve seat connected to the body. A moveable valve assembly comprises an armature connected to a valve outlet member that includes a pintle and a ball element that is disposed at the fuel outlet to control the flow of fuel from the outlet. At least one spring, positioned between the armature and the valve outlet member, acts on the moveable valve assembly to reduce bounce of the valve outlet member at the valve seat.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: September 24, 2002
    Assignee: Delphi Technologies, Inc.
    Inventors: Joseph George Spakowski, Jay Keith Sofianek
  • Patent number: 6453936
    Abstract: A valve system for the pre-engagement unit of a vehicle braking pressure modulator contains solenoid valves, which are controlled by an electronic braking system. Pneumatic pressure is fed into a brake cylinder on the vehicle wheels via a pressure regulating channel of the pre-engagement unit. The solenoid valves are configured as cartridge solenoid valves, so that assembly is simplified, and utilization of elastic tolerance compensating elements is unnecessary. A preferred embodiment includes three cylinder bodies connected end-to-end with no increase in cylinder diameter. This embodiment enables the use of identical armatures and identical magnet coils for different valve types, such as 3/2-way solenoid valves or 2/2-way solenoid valves. Also, these valves may be configured as normally open or normally closed, with identical outside dimensions. As such, three cartridge solenoid valves can be combined into a compact triple valve cartridge unit that further simplifies the assembly process.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: September 24, 2002
    Assignee: WABCO GmbH & Co. oHG
    Inventors: Dieter Frank, Gerdt Schreibert, Peter Homann, Armin Sieker, Andreas Kranz, Hans-Klaus Wolff, Dirk Meier
  • Patent number: 6450152
    Abstract: A low-profile tank isolation valve mounts on a wall of a fuel tank to enclose an opening in the tank wall through which an inlet port of the valve is communicated to tank headspace. An electric actuator is selectively energized to selectively operate an armature to cause a closure to seat on, and unseat from, a valve seat. The armature is a cylindrical walled tube that is disposed within a central through-hole of the actuator and is selectively positioned along a straight axis coincident with the tube axis. An element that operatively relates the armature to the closure constrains vapor flow through the valve to pass through the armature tube when the closure is unseated. The seat, closure, and element are all disposed within the actuator through-hole.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: September 17, 2002
    Assignee: Siemens Automotive Inc.
    Inventor: Gary M. Everingham
  • Patent number: 6431474
    Abstract: An electromagnetically operable fuel injector for a fuel injection system of an internal combustion engine is disclosed having a ferromagnetic core, a magnetic coil at least partially surrounding the ferromagnetic core and an armature magnetically coupled to the magnetic coil and being movably responsive to the magnetic coil. The armature actuates a valve-closing element, which interacts with a fixed valve seat and is movable away from the fixed valve seat of a fuel valve when the magnetic coil is excited. The armature has a generally elongated shape and a generally central opening for reception of fuel from a fuel inlet connector positioned adjacent thereto. The fuel inlet connector extends in a generally longitudinal direction above the armature and defines a central path for fuel to enter the inlet connector and to be directed toward the armature for further passage toward the fixed valve seat.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: August 13, 2002
    Assignee: Siemens Automotive Corporation
    Inventors: James Paul Fochtman, Danny Orlen Wright
  • Publication number: 20020100822
    Abstract: The present invention provides a solenoid actuated fuel injector with a repeatable stroke. The fuel injector includes a housing having a fuel inlet, a fuel outlet, and a fuel passageway extending from the fuel inlet to the fuel outlet along a longitudinal axis. The fuel injector additionally includes a valve body having an inlet portion and an armature guide eyelet that is disposed in the inlet portion of the valve body within the fuel passageway. The armature guide eyelet is sized to direct and support reciprocal motion of the needle/armature assembly within the fuel passageway along the longitudinal axis. The needle/armature assembly is reciprocally disposed in and axially aligned with the fuel passageway. The needle/armature assembly includes an upper bearing guide fixedly connected to a needle stem portion. The upper bearing guide includes a bearing portion and a contacting portion.
    Type: Application
    Filed: January 26, 2001
    Publication date: August 1, 2002
    Inventor: Jack David Oliver
  • Publication number: 20020088958
    Abstract: A valve structure that includes a housing, a valve, and an actuator. The housing includes a first portion, a second portion, and an intermediate portion. The first portion extends along a first axis from a first port, the second portion extends along a second axis from a second port, and the intermediate portion connects the first and second portions. The first and second portions partially define a fluid communication path between the first and second configurations. The valve is movable with respect to the housing between first and second configurations. The first configuration permits substantially unrestricted fluid flow between the first and second ports. The second configuration substantially prevents fluid flow between the first and second ports. The actuator displaces the valve from the first configuration to the second configuration. The actuator partially defines the fluid communication path between the first and second ports.
    Type: Application
    Filed: August 8, 2001
    Publication date: July 11, 2002
    Inventor: Craig Weldon
  • Publication number: 20020088879
    Abstract: A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that is secured at the second end of the tube assembly and that defines an opening; an armature assembly that is disposed within the tube assembly; a member that biases the armature assembly toward the seat; an adjusting tube that is disposed in the tube assembly and that engages the member for adjusting a biasing force of the member; a filter that is located at the first end of the tube assembly and that has an integral retaining portion; an O-ring that circumscribes the first end of the tube assembly and that is maintained by the retaining portion of the filter; and a first attachment portion.
    Type: Application
    Filed: December 29, 2000
    Publication date: July 11, 2002
    Inventors: Michael P. Dallmeyer, Robert McFarland
  • Patent number: 6415995
    Abstract: A microdispensing system is useful for the open-jet dispensing of liquids. A valve having a valve chamber is bounded by an impermeable elastic membrane and is filled with the liquid for dispensing. One or more liquid supply lines lead to the valve chamber. An outlet closed from the exterior by the membrane in the position of rest leads from the chamber to a dispensing nozzle. An actuator chamber is disposed on the other side of the membrane. In the actuator chamber, an electromechanical drive is connected to the membrane for the purpose of briefly lifting the membrane from the outlet. The actuator chamber is closed in such manner that it can be subjected to a pressure differing from atmospheric pressure.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: July 9, 2002
    Assignee: Cybio AG
    Inventors: Thilo Enderle, Christof Fattinger, Gerhard Flury, Hans-Peter Hirt, Rene Rietmann, Hansjörg Tschirky
  • Patent number: 6415817
    Abstract: A magnet valve for tank venting in motor vehicles, having at least one valve opening forming a sealing seat and having a spring-loaded valve member cooperating with the at least one sealing seat for opening and closing the valve and actuated by an electromagnet counter to the restoring force of a restoring spring. Downstream of the valve member, a flow element that throttles the flow of a gas is disposed, the shape of the flow element is adapted to the opening cross section of the sealing seat that cooperates with the valve member, for determining (metering) the flow quantity of the gas through the cross section of the flow element when the magnet valve is open. The shape of the flow element is determined (metered) in such a way that the area of the opening cross section of the effective valve seat is greater than 2.5 and preferably greater than 9 times the area of the effective cross section of the flow element.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: July 9, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Erwin Krimmer, Wolfgang Schulz, Tilman Miehle
  • Publication number: 20020084355
    Abstract: A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that is secured at the second end of the tube assembly and that defines an opening; an armature assembly that is disposed within the tube assembly; a member that biases the armature assembly toward the seat; an adjusting tube that is disposed in the tube assembly and that engages the member for adjusting a biasing force of the member; a filter that is located at least within the tube assembly and may include an integral retaining portion; an O-ring that circumscribes the first end of the tube assembly and that is maintained by the retaining portion of the filter; and a first attachment portion.
    Type: Application
    Filed: December 29, 2000
    Publication date: July 4, 2002
    Inventors: Michael P. Dallmeyer, Robert McFarland, Michael J. Hornby
  • Publication number: 20020084343
    Abstract: A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that is secured at the second end of the tube assembly and that defines an opening; an armature assembly that is disposed within the tube assembly; a member that biases the armature assembly toward the seat; an adjusting tube that is disposed in the tube assembly and that engages the member for adjusting a biasing force of the member; a filter located within the tube assembly; and a first attachment portion. The coil group subassembly includes a solenoid coil that is operable to displace the armature assembly with respect to the seat; and a second attachment portion that is fixedly connected to the first attachment portion.
    Type: Application
    Filed: December 29, 2000
    Publication date: July 4, 2002
    Inventors: Michael P. Dallmeyer, Robert McFarland
  • Publication number: 20020084344
    Abstract: A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that is secured at the second end of the tube assembly and that defines an opening; an armature assembly that is disposed within the tube assembly; a member that biases the armature assembly toward the seat; an adjusting tube that is disposed in the tube assembly and that engages the member for adjusting a biasing force of the member; a filter that is located at least within the tube assembly and that has an integral retaining portion; an O-ring that circumscribes the first end of the tube assembly and that is maintained by the retaining portion of the filter; and a first attachment portion.
    Type: Application
    Filed: December 29, 2000
    Publication date: July 4, 2002
    Inventors: Michael P. Dallmeyer, Michael J. Hornby, Bryan Hall, Ross Wood
  • Publication number: 20020084345
    Abstract: A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that is secured at the second end of the tube assembly and that defines an opening; an armature assembly that is disposed within the tube assembly; a member that biases the armature assembly toward the seat; an adjusting tube that is disposed in the tube assembly and that engages the member for adjusting a biasing force of the member; a filter that is disposed at least within the tube assembly; an O-ring that circumscribes the second end of the tube assembly and that is maintained by a flared end of a snap-fit type retainer; and a first attachment portion.
    Type: Application
    Filed: December 29, 2000
    Publication date: July 4, 2002
    Inventors: Michael P. Dallmeyer, Robert McFarland
  • Publication number: 20020074532
    Abstract: A valve mechanism in which a valve member is moveable into contact with a valve seat as a result of actuation of the valve. The valve seat and the valve closure member are designed such that they have essentially only line contact when the valve is closed, with the nominal width of the valve corresponding approximately to the sealing width of the valve. This construction allows a relatively large nominal width to be used for the flow cross section of the valve without the need for a much larger actuating force for the valve. To prevent damage to the valve seat and to the valve closure member, an elastic damping element may be disposed behind the valve closure member so that the valve closure member can deform compliantly up impact against the valve seat.
    Type: Application
    Filed: December 18, 2001
    Publication date: June 20, 2002
    Inventors: Juan Rovira, Andreas Teichmann
  • Patent number: 6405427
    Abstract: A solenoid actuated fuel injector for use with an internal combustion engine includes a hydraulic metering subassembly and a power group subassembly. The hydraulic metering subassembly includes a fuel path and an armature/needle assembly movable between valve closed and open positions and calibrated independent of the power group subassembly to meter the discharge of fuel from the injector. The power group subassembly provides a magnetic flux return path and electromagnetic forces that move the armature/needle assembly between the valve closed and open positions. By providing an independently operational, calibrated hydraulic subassembly, a variety of different types of power group subassemblies may be used with the hydraulic metering subassembly resulting in design flexibility and a manufacturing process that is more flexible and cost efficient.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: June 18, 2002
    Assignee: Siemens Automotive Corporation
    Inventor: Philip A. Kummer
  • Patent number: 6405947
    Abstract: An electromagnetically operable fuel injector for a gaseous fuel injection system of an internal combustion engine, the injector having a generally longitudinal axis. which comprises, a ferromagnetic core, a magnetic coil at least partially surrounding the ferromagnetic core and an armature magnetically coupled to the magnetic coil and being movably responsive to the magnetic coil. The armature actuates a valve closing element which interacts with a fixed valve seat of a fuel valve and is movable away from the fixed valve seat when the magnetic coil is excited. The fixed valve seat defines a central fuel opening and a generally annular groove adjacent the central fuel opening, the armature having a generally elongated shape and a generally central opening for axial reception and passage of gaseous fuel from a fuel inlet connector positioned adjacent thereto.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: June 18, 2002
    Assignee: Siemens Automotive Corporation
    Inventor: James Paul Fochtman
  • Patent number: 6405757
    Abstract: An electrically-operated three-way plunger-type solenoid valve assembly includes a housing, a valve seat insert provided in the housing, an electromagnetic actuator, and an exhaust port body, which extends into a sleeve passage of the electromagnetic actuator. A non-magnetic member is positioned in the sleeve passage of the electromagnetic actuator and includes an orifice in communication with an exhaust passage of the exhaust port body. A plunger is positioned in the non-magnetic member and supported for reciprocal axial movement in the non-magnetic member. A biasing member is provided which applies a spring force to the plunger, with the electromagnetic actuator generating a magnetic field having sufficient magnitude to move the plunger against the force of the biasing member. In this manner, the electromagnetic actuator selectively moves the plunger to control the communication between inlet and outlet openings of the valve to open and closed the valve.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: June 18, 2002
    Assignee: Humphrey Products Company
    Inventor: Leonard J. Jabcon
  • Patent number: 6390392
    Abstract: A valve needle for use in an electromagnetically operable injection valve of a fuel injection system in an internal combustion engine includes a connecting part that is made of a plastic bar and that is connected to an armature and a valve closing element. In order to achieve a tight connection of the valve needle components, the connecting part enters into a form-fitting connection with the armature and with the valve closing element. The form-fitting connection between the connecting part and the valve closing element includes corresponding areas of larger and smaller diameters engaging with one another.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: May 21, 2002
    Assignee: Robert Bosch GmbH
    Inventor: Ferdinand Reiter
  • Patent number: 6382532
    Abstract: A fuel injector assembly including a body portion, a valve seat fixed relative to the body portion, a valve member movable relative to the valve seat, an outer layer substantially surrounding the body portion, and a damping material between the body portion and the outer layer, the damping material cooperating with the outer layer to dampen noise and vibration produced during operation of the fuel injector. Preferably, the fuel injector also includes an electrical connector mounted on the body portion, and the damping material is adjacent the electrical connector. In the preferred embodiment, the damping material is a viscoelastic material.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: May 7, 2002
    Assignee: Robert Bosch Corporation
    Inventors: Richard Mark French, Maria Catherine Nowland, Christopher Martin Louis
  • Patent number: 6382534
    Abstract: A fuel injection valve, in particular for fuel injection systems of internal combustion engines, includes a magnet coil, an armature acted upon in a closing direction by a return spring, and a valve needle, in nonpositive engagement with the armature, for actuation of a valve closure element that, together with a valve seating surface, forms a sealing fit. At least one fuel conduit through which fuel flows is provided in the armature and/or in the valve needle. An impact element is mounted on the valve needle in the spray-discharge direction of the fuel conduit.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: May 7, 2002
    Assignee: Robert Bosch GmbH
    Inventor: Norbert Keim
  • Publication number: 20020047054
    Abstract: A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that is secured at the second end of the tube assembly and that defines an opening; an armature assembly that is disposed within the tube assembly; a member that biases the armature assembly toward the seat; an adjusting tube that is disposed in the tube assembly and that engages the member for adjusting a biasing force of the member; a filter that is at least within the tube assembly; and a first attachment portion. The coil group subassembly includes a solenoid coil that is operable to displace the armature assembly with respect to the seat; and a second attachment portion that is fixedly connected to the first attachment portion.
    Type: Application
    Filed: April 9, 2001
    Publication date: April 25, 2002
    Inventors: Michael P. Dallmeyer, Robert McFarland, Michael J. Hornby, James Robert Parish, Dennis Bulgatz, Ross Wood, Bryan Hall
  • Patent number: 6374624
    Abstract: A refrigerant flow-control valve operable between a no-flow condition and a flow condition in response to a control signal supplied thereto. The flow-control valve includes a tubular-shaped body forming a refrigerant passageway extending from an inlet to an outlet, a cylindrically-shaped restrictor secured within the tube and forming a restriction, and a cylindrically-shaped stop secured within the tube and forming a plunger valve flow passage. The stop is located downstream and spaced-apart from the restrictor and the restriction has a greater resistance to flow than the valve flow passage. A plunger is within the tube between the restrictor and the stop and carries a valve element. The plunger is movable between a first position closing the valve flow passage to generally prevent refrigerant flow therethrough and through the passageway and a second position opening the valve flow passage to permit refrigerant flow therethrough and through the passageway.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: April 23, 2002
    Assignee: Ranco Incorporated
    Inventors: Pandu Cholkeri, William D. Kramer, Brian Enderle
  • Patent number: 6339366
    Abstract: A magnet valve, especially for tank venting in motor vehicles, having at least one valve opening and having a valve member, which for opening and closing cooperates with the at least one valve opening and which, forming a magnet armature of an electromagnet, is disposed opposite a magnet core of the electromagnet, an exciter coil being disposed on a coil carrier that is disposed in a magnet housing and surrounds the magnet core, and a thread being provided in the magnet housing, which thread is screwed to a first male-threaded portion of the magnet core, wherein a second male-threaded portion is disposed on the magnet core, which male-threaded portion, as the magnet core is screwed into the magnet housing, forms a thread course in the coil carrier.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: January 15, 2002
    Assignee: Robert Bosch GmbH
    Inventor: Achim Meisiek