Lost Motion Between Valve And Valve Actuator Patents (Class 251/129.19)
  • Patent number: 11149866
    Abstract: A discharge valve is provided in a recirculation line through which gas discharged from a fuel cell stack recirculates to the stack. The discharge valve opens or closes a discharge line through which a fluid in the recirculation line is discharged. The discharge valve includes a valve body connected to the discharge line and a drive part disposed in the valve body to be movable vertically. A diaphragm is coupled to a lower end of the drive part and selectively opens or closes the discharge line based on the vertical movement. The drive part switches between a closed state in which the discharge line is closed by the diaphragm, a first opened state in which the discharge line is opened to a first opening degree, and a second opened state in which the discharge line is opened to a second opening degree greater than the first opening degree.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: October 19, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hyo Sub Shim, Hak Yoon Kim
  • Patent number: 10989154
    Abstract: Various embodiments may include a method for actuating a fuel injector with a solenoid drive and a nozzle needle. The solenoid drive has a solenoid and a movable armature. The fuel injector has an idle stroke between the armature and the nozzle needle. An example method includes: applying a precharging current to the solenoid drive during a precharging phase to move the movable armature into mechanical contact with the nozzle needle; and applying a voltage pulse to the solenoid drive during a boost phase until the current intensity of the current flowing through the solenoid reaches a predetermined peak value.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: April 27, 2021
    Inventors: Frank Denk, Gerd Rösel
  • Patent number: 10738748
    Abstract: A fluid metering valve includes a valve needle that is actuatable by an electromagnetic actuator that includes an armature guided on and along a longitudinal axis of the valve needle with a movement limited by a stop surface on the valve needle. A projection of an edge of the stop surface extends into a projection plane, perpendicular to the longitudinal axis and at which the armature and stop surface are in contact temporarily during operation, through an opening of a conduit of the armature, dividing the opening into an inner surface on one side of the projection and an outer surface on the other side of the projection. A fluid exchange between inside and outside of an area between the stop surface and armature is via a path through the inner surface, conduit, and outer surface when the armature is in contact with the stop surface at the projection plane.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: August 11, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Nico Herrmann, Andreas Schaad, Joerg Abel, Juergen Maier, Martin Buehner, Matthias Boee, Olaf Schoenrock, Philipp Rogler, Stefan Cerny
  • Patent number: 10690097
    Abstract: Provided is an electromagnetic valve capable of stabilizing an injection amount even when injection is performed while an intermediate member continues to be displaced after valve closing and returns to a closed valve standby state. For that purpose, a valve body 303 opens or closes a flow path. A movable iron core 404 moves the valve body 303 in a valve opening direction using a magnetic attraction force. An intermediate member 414 forms a preliminary stroke gap (g1) between the movable iron core 404 and the valve body 303 in a closed valve state. A stopper portion 410c collides with the intermediate member 414 when the intermediate member 414 moves in a direction in which the preliminary stroke gap (g1) is reduced.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: June 23, 2020
    Inventors: Masashi Sugaya, Kiyotaka Ogura, Takao Miyake, Yoshihito Yasukawa
  • Patent number: 10571031
    Abstract: The present invention is a flow-rate adjustable valve for adjusting a flow rate of liquid flowing through a flow path. The flow-rate adjustable valve includes: a main valve body movably supported in the flow path via a diaphragm membrane; a back pressure chamber; a plurality of inlet holes communicating the upstream side of the flow path with the back pressure chamber; an outlet hole communicating a downstream side of the flow path with the back pressure chamber; and a pilot valve body for opening and closing the outlet hole, wherein moments acting on the main valve body based on the liquid flowing into the back pressure chamber through the plurality of inlet holes are canceled by each other in total, under a condition in which the pilot valve body opens the outlet hole.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: February 25, 2020
    Assignee: TOTO LTD.
    Inventors: Kenichi Hashimoto, Hideyuki Matsui, Makoto Hatakeyama, Kohei Kawana, Tetsuro Kamiyoshi, Masanobu Kanashiro
  • Patent number: 10428965
    Abstract: A flow control device (10) operates on digital instruction from a controller, especially in association with a tire curing press. A valve body (42) has a flow conduit, along which a seat (52) is formed. A valve stem (48) has a valve seal (50) positioned in the flow conduit and an end that extends out of the valve body at a valve bonnet (54). The seal move toward and away from the valve seat. A smart motor (20) in bi-directional communication with the controller sets the position of the seal by rotating an output shaft (22) to a predetermined position. An actuator (7) arranged between the stepper motor and the valve body translates rotation of the outlet shaft into axial movement of the valve stem. A spring (76) in the actuator moves the valve stem to a predetermined default position in the event of loss of power.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: October 1, 2019
    Assignee: Durbin Industrial Valve Repair, Inc.
    Inventors: Scott Durbin, Braden Westfall, Jason Paquette
  • Patent number: 10247326
    Abstract: A linear valve drive for connection to a valve body which has a valve seat is described, wherein said linear valve drive comprises a drive housing, a valve closure element and a piezoelectric actuator which is arranged within said drive housing. Said valve closure element is displaceable in the axial direction between an open position and a closed position by means of said piezoelectric actuator and an interposed actuating device. Said piezoelectric actuator is supported on said actuating device via its side directed towards the valve closure element. Said linear valve drive comprises an adjusting device which is configured such that an idle stroke of said linear valve drive is adjustable. A valve is also described.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: April 2, 2019
    Inventors: Michael Schupp, Jan Westermann
  • Patent number: 9970399
    Abstract: An inlet valve assembly for a high-pressure fuel pump is disclosed. The inlet valve assembly comprises an inlet valve member moveable between open and closed positions to control the fuel flow from a source of low-pressure fuel to a pumping chamber of the fuel pump, a first biasing spring arranged to apply a first force to the valve member in an opening direction, a second biasing spring arranged to apply a second force to the valve member in a closing direction, and an actuator arrangement operable to remove the first force from the valve member, thereby to allow the valve member to move into its closed position.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: May 15, 2018
    Inventors: Michel Marechal, Etienne Pereira, Raphael Rouillon, Christophe Breant
  • Patent number: 9879788
    Abstract: An electromagnetically actuated valve, in particular a pressure control valve of a slip-controllable vehicle brake system, includes a seat body with a valve seat, at least one inflow channel, and an outflow channel. The valve includes a shut-off element configured to avoid a hydraulic short circuit between the inflow channel and the outflow channel when the valve seat is closed. The shut-off element is equipped with flow-directing means. The flow-directing means prevent the partial flows from the inflow bores from hitting each other and direct the flow to a closing body, which controls the valve seat, in such a way that a transverse force is applied to the closing body when the closing body performs a stroke motion. The transverse force radially deflects the closing body during an opening or closing motion and causes an effect that stabilizes the stroke motion and dampens radial vibrations.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: January 30, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Pascal Godbillon, Edgar Kurz
  • Patent number: 9714634
    Abstract: Electromagnetic valve, particularly for controlling a fuel injector or for regulating the pressure of a high-pressure fuel accumulator, comprising a casing (2), an electromagnet (24, 25) formed of a yoke (24) and an electromagnetic coil (25) housed in the latter, and an armature (22) in one or more parts. An abutment disk (28) is provided between the transverse face of the armature (22) turned towards the yoke (24) and the transverse face facing the yoke (24), this abutment disk (28) being made of a magnetized or magnetizable material, particularly of a ferromagnetic material.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: July 25, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Jens Leister, Marco Beier, Pierre Marie Rochas, Oliver Rain
  • Patent number: 9353715
    Abstract: A fuel injector for injecting fuel into an internal combustion engine includes: a housing having at least one spray orifice; a magnet armature movable linearly in the housing; a magnetic coil acting magnetically on the magnet armature; and a valve element movable linearly with respect to the housing and with respect to the magnet armature, the valve element, together with the at least one spray orifice, forming a valve seat, a first stop on the valve element, and a tension spring pulling the magnet armature against the first stop.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: May 31, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Philipp Rogler, Martin Scheffel
  • Patent number: 9267607
    Abstract: An actuator for an adjustable damping valve device includes an armature which has an axial valve stem. At least one spring loads the armature in a direction opposite to the magnetic armature force generated by a magnetic coil. The position of the valve stem is adjustable with respect to a defined valve position of the damping valve device. The spring loading the armature is supported at a spring bearing which is accessible via a housing wall of the actuator and which can be adjusted with respect to its axial position.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: February 23, 2016
    Assignee: ZF Friedrichshafen AG
    Inventor: Andreas Förster
  • Publication number: 20150144820
    Abstract: A solenoid valve is provided having a hydraulic body with an undulated expansion artery to prevent an exchange of fluid between an interior of the hydraulic body and the exterior of the solenoid valve.
    Type: Application
    Filed: June 13, 2013
    Publication date: May 28, 2015
    Applicant: BorgWarner Inc.
    Inventors: David C. Mills, Garrett R. Holmes, Scott M. Weber
  • Publication number: 20150144821
    Abstract: A rear electromagnet suitable for vibrating pumps and electrical valves. The rear electromagnet for vibrating pump and electrical valves, which is the subject of this invention, has features intended to increase the efficiency of the magnetic system due the particular position of the electromagnet in order to exert a direct attractive force over the ferritic core and to obtain the same performances with less copper, iron and consume less electricity.
    Type: Application
    Filed: November 27, 2014
    Publication date: May 28, 2015
  • Publication number: 20150144819
    Abstract: An isolation valve may include a flow restrictor disposed in a passage having non-parallel sides, the flow restrictor having an orifice. A flow restrictor spring may apply a biasing force on the flow restrictor to bias the flow restrictor to an open position. A solenoid assembly may include having a coil and an armature that may be moveable between (i) an extended position that overcomes the biasing force of the restrictor spring to move the flow restrictor to a closed position and to close the second orifice, and (ii) a retracted position to open the orifice. If the coil is energized, the armature may move to the retracted position to allow vapor to flow through the orifice at least until the biasing force of the flow restrictor spring overcomes a vapor pressure. The open position of the flow restrictor may allow vapor to flow through a space between the flow restrictor and the passage.
    Type: Application
    Filed: February 2, 2015
    Publication date: May 28, 2015
    Inventors: Daniel Lee Pifer, Raymond Bruce McLauchlan
  • Publication number: 20150137014
    Abstract: An electromagnetic valve includes a housing, a plunger, a spring, and a solenoid. The housing includes a cylindrical guide member configured to assist axial movement of the plunger, a seat member assembled to the guide member with a valve hole formed therein, a stationary core arranged so as to be opposed to an end portion of the guide member at a predetermined distance away therefrom in an axial direction, and a sleeve coupled, in a liquid-tight manner, to each of an outer circumference of an end portion of the stationary core and an outer circumference of the end portion of the guide member so as to integrally couple the stationary core and the guide member to each other.
    Type: Application
    Filed: August 10, 2012
    Publication date: May 21, 2015
    Inventors: Kei Sato, Akihiro Yamada, Masaki Nanahara
  • Publication number: 20150129787
    Abstract: A system for positioning a seal member on a movable valve stem. The system includes an O-ring surrounding a lower portion of a movable valve stem. A snap-on retaining collar is pushed into place along the valve stem. A lower edge of the collar contacts the O-ring. The interaction between the snap-on collar and the O-ring prevents the O-ring from flexing outwardly and becoming dislodged from the valve stem. The snap-on retaining collar can be formed from various materials, such as but not limited to plastic.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 14, 2015
    Inventor: Nick William Buettner
  • Publication number: 20150108382
    Abstract: A solenoid valve has a valve body with first and second ports. A bobbin is mounted to the valve body. A winding is wound on the bobbin. A stator is fitted to one end of a hole through the bobbin and defines a third port therein. A plunger is slidably fitted to the hole and movable between a normal position and an energized position. Two plugs are installed at respective ends of the plunger and arranged to selectively close the first and third ports. A flux return device is fixed to the stator and the bobbin. A spring returns the plunger from the energized position, where the plunger closes the third port and the first and second ports communicate with each other via the hole in the bobbin, to the normal position, where the plunger closes the first port and the second and third ports communicate with each.
    Type: Application
    Filed: October 23, 2014
    Publication date: April 23, 2015
    Inventors: Carl Henric Andreas SVENSSON, Thomas ROSCHKE
  • Publication number: 20150102242
    Abstract: A solenoid assembly for providing control over fluid pressure distribution in a transmission, where the solenoid assembly includes a solenoid portion and a valve portion, and the movement of the valve portion is controlled by the solenoid portion. There is a valve which is part of the valve portion, and the valve controls the distribution of fluid between a supply port, a control port, and an exhaust port. The distribution of fluid between the ports may include providing a pressure balance between the supply port and the control port, and allowing any excess fluid to pass through the exhaust port, or controlling the flow of fluid between the supply port and the control port, with any excess fluid exiting the exhaust port.
    Type: Application
    Filed: September 18, 2014
    Publication date: April 16, 2015
    Inventors: Marc Timmermans, Eddy Wilgenhof, Marie-Noelle Gris, An Huyghe, Peter Steylaerts, Koen Vermolen, Johan Van De Plas
  • Patent number: 9004446
    Abstract: A sliding valve device includes a fixing portion, a sliding component and a driving member. The fixing portion has an inlet port and an outlet port. The sliding component is connected with the fixing portion, and includes a fluid channel. The driving member is used for driving movement of the sliding component, wherein the driving member is not in contact with the fluid channel, the inlet port and the outlet port.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: April 14, 2015
    Assignee: Delta Electronics, Inc.
    Inventor: Ming-Chih Tsai
  • Publication number: 20150097130
    Abstract: An electromagnetic solenoid actuator comprises a ferromagnetic core and a ferromagnetic plunger. The ferromagnetic core supports a plurality of windings, and is oriented along an axis. The ferromagnetic plunger is aligned axially with the ferromagnetic core, and is translatable along the axis to vary a width of an air gap separating the ferromagnetic plunger from the ferromagnetic core. The ferromagnetic plunger and the ferromagnetic core overlap axially at a flux bypass that provides an alternative flux path that diverts increasing flux away from the air gap as the width of air gap decreases.
    Type: Application
    Filed: January 31, 2014
    Publication date: April 9, 2015
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Jacek F. Gieras, Gary M. McBrien, Leo J. Veilleux, JR.
  • Patent number: 8998167
    Abstract: A solenoid valve has a valve seat, a valve element, and a tappet which is shiftably mounted within the solenoid valve and can urge the valve element against the valve seat in which a line perpendicular to a plane defined by the valve seat can be oriented at an angle that is non-zero in relation to the direction of movement of the tappet, the valve seat being oriented obliquely to a center axis defined by a magnetic coil.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: April 7, 2015
    Assignee: Buerkert Werke GmbH
    Inventor: Albert Leidig
  • Publication number: 20150090913
    Abstract: A valve for metering fluid is reported which has a valve housing having a valve opening and a valve seat, a valve needle, which is provided for the alternating closing and opening of the valve using a closing member cooperating with the valve seat, a resetting element that acts on the valve needle for closing the valve and an electromagnet that is able to have current applied to it, having a magnet armature that is drivable to a lift motion, which sits axially displaceably on the valve needle and carries along the valve needle in the lift direction for opening the valve via a driving flange situated on it. To simplify production and the assembly of the valve while achieving the advantages characteristic in valves having a prestroke spring and an armature free path, the magnet armature is supported on the valve housing using a diaphragm spring.
    Type: Application
    Filed: March 22, 2013
    Publication date: April 2, 2015
    Inventors: Martin Buehner, Michael Mayer, Michael Knorpp
  • Publication number: 20150090914
    Abstract: A solenoid valve for controlling fluids includes a pole core, an armature which is connected to a closing element, and a spring element which is arranged in a working gap between the pole core and the armature. The spring element includes a shaped spring of substantially disk-shaped design. The shaped spring has a curvature with at least one flank region and one dome region, a tangent to the dome region being parallel to an end surface of the pole core.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 2, 2015
    Applicant: Robert Bosch GmbH
    Inventor: Massimiliano Ambrosi
  • Publication number: 20150083948
    Abstract: A valve includes a spring with a spring force, an actuator with an actuator force which can act against the spring force, a pin which can be actuated by the actuator, a sealing element which can be coupled with the pin, and a seal seat such that the valve is closed when the sealing element rests against the seal seat. The pin can be moved in the direction of the sealing element by means of the actuator, and the pin can be moved in the direction away from the sealing element by means of the spring. The sealing element can be moved into an open position independently of the pin, wherein a fluid flow through the valve is released in the open position.
    Type: Application
    Filed: December 21, 2012
    Publication date: March 26, 2015
    Inventors: Matthias Bleeck, Bernd Gugel, Thomas Krueger, Bernd Woellisch
  • Publication number: 20150083949
    Abstract: A device for regulating the flow of a fluid is provided with a valve housing having at least two valve connections, which are fluidically connected to one another via a valve chamber, at least one valve seat, which has a fluid connection to the valve chamber and one of the valve connections, a valve element, which has an actuating section located outside of the valve chamber and a closing body located within the valve chamber for the at least one valve seat. An electromagnet having a solenoid armature acts upon the actuating section. The solenoid armature is supported via two flat springs.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 26, 2015
    Inventors: Martin Vogt, Peter Metternich De Oliveira, Felix Ams
  • Publication number: 20150048268
    Abstract: The invention relates to an electromagnetic valve, comprising a valve tappet, which is arranged in a valve housing and which can open or close a valve passage in the valve housing, a magnet armature, which is provided in order to actuate the valve tappet and through which a hole passes for accommodating the valve tappet, and a restoring spring, which acts on the valve tappet and the spring end of which facing away from the magnet armature is supported on a magnet core in the valve housing. For precise valve adjustment, an adjustment sleeve is fixed in the hole of the magnet armature, in which adjustment sleeve the valve tappet is fastened in some sections at the same time.
    Type: Application
    Filed: March 22, 2013
    Publication date: February 19, 2015
    Inventors: Christoph Voss, Christian Courth
  • Publication number: 20150034850
    Abstract: A valve body for an electromechanically operable valve is produced by providing a base element with a circumferential sidewall having a first portion, a second portion, and a third portion, the sidewall being made of a ferromagnetic material and enclosing a cavity extending along a longitudinal axis. The third portion is positioned in longitudinal direction between the first portion and the second portion. A thickness of the third portion is smaller than a thickness of the first portion and the second portion. Hardening the third portion is achieved by laser heating, which transforms a material structure of the third portion into a martensitic structure. The locally decreased thickness creates a bottleneck for a magnetic flux, and a magnetic flux bypass in the valve body is reduced due to magnetic saturation; however, a structural resistance of the valve body remains high due to the laser induced hardening.
    Type: Application
    Filed: June 2, 2014
    Publication date: February 5, 2015
    Applicant: Continental Automotive GmbH
    Inventors: Francesco Lenzi, Stefano Filippi, Mauro Grandi
  • Publication number: 20150028240
    Abstract: A valve assembly for a control valve includes a valve body having a central longitudinal axis and a cavity with a fluid inlet portion and a fluid outlet portion, a valve needle axially movable in the cavity, the valve needle preventing a fluid flow through the fluid outlet portion in a closing position and releasing the fluid flow through the fluid outlet portion in further positions, and an electro-magnetic actuator unit configured to actuate the valve needle. The electro-magnetic actuator unit includes a pole piece fixedly arranged relative to the valve body, and an armature coupled to the valve needle and axially movable in the cavity. The electro-magnetic actuator unit includes a permanent magnet coupled to the valve body and arranged such that the permanent magnet exerts a force on the armature acting to contribute to move the valve needle into the closing position.
    Type: Application
    Filed: October 31, 2012
    Publication date: January 29, 2015
    Inventors: Mauro Grandi, Valerio Polidori, Stefano Filippi
  • Patent number: 8939431
    Abstract: An electromagnetic positioning device has a long stretched out anchor plunger section as well as an anchor having an anchor body section axially continuing the latter, which in order to magnetically interact with a core unit and by energizing a stationary provided coil device is movably designed relative to the latter. The core unit is designed in such a way that it at least sectionally encompasses the anchor plunger section as well as the anchor body section with an expanded diameter relative to the anchor plunger section. The core unit is a multi-part design in the axial direction with a stationary core section, an axially movable core section and a variable core gap between the stationary and movable core section, and the movable core section and anchor are designed and joined together via a driver in such a way that, in response to energization, the movable core section moves, causing the core gap to close, and the driver drives the anchor in the axial direction.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: January 27, 2015
    Assignee: ETO Magnetic GmbH
    Inventors: Thomas Schiepp, Jorg Burssner
  • Publication number: 20150014563
    Abstract: Exemplary embodiments are directed to systems and methods used to minimize force variation from a solenoid through an operating stroke. The systems and methods generate a near constant or substantially constant force solenoid assembly which can be used in a force driven device, such as, for example, a pressure regulator for accurately controlling pressure in a pressurized flow system. The systems and methods are based on an initial solenoid characterization and include an application of springs and placement of the solenoid within the system at a gap distance to minimize variation in force in the operating stroke of a commercially available solenoid.
    Type: Application
    Filed: March 7, 2013
    Publication date: January 15, 2015
    Applicant: Waters Technologies Corporation
    Inventor: Joshua A. Shreve
  • Patent number: 8925897
    Abstract: A solenoid valve includes a magnet armature, which is operatively connected to a sealing element of the solenoid valve in order to move the latter, and an armature opposing piece which is arranged at the end of the magnet armature. An intermediate element, which can be placed in supporting contact with the armature opposing piece, is mounted in an axially movable fashion in a guide recess in the magnet armature. A driver assistant device includes the above-described solenoid valve.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: January 6, 2015
    Assignee: Robert Bosch GmbH
    Inventor: Norbert Alaze
  • Publication number: 20140374635
    Abstract: A gas valve having a valve body that at least partially defines a gas enclosure. The valve body has an intake, an outlet and a hole for communicating the outlet with the intake. A valve seat within the gas enclosure cooperates with the hole to permit or to prevent the passage of gas through the hole. An electrically activated actuator, when activated, is configured to move or keep the valve seat in the open position. The gas valve includes connection means that connect the actuator to the outside of the gas valve, the connection means being disposed at least in part on a metal core printed circuit board. The printed circuit board is soldered to a metal structure located within the gas enclosure to at least partially seal the gas enclosure, the metal structure supporting, at least in part, the electrical actuator.
    Type: Application
    Filed: February 27, 2013
    Publication date: December 25, 2014
    Applicant: COPRECITEC, S. L.
    Inventors: Félix Querejeta Andueza, Jose Ignacio Mugica Odriozola
  • Publication number: 20140366961
    Abstract: The present invention relates to a draining device for discharging the water contained in a fuel filter manifold, including a draining solenoid valve comprising a valve body (1?, 2?) provided with a draining channel (17?), a coil winding (10?), a piston (8?, 12?) arranged such as to be movable between a passive position for closing the draining channel (17?) and an active opening position allowing the water to be drained, the movement of the piston being controlled by the coil, characterized in that the valve body includes a first portion (1?) that is integral with the manifold of said filter, the coil (10?) and the electric circuit (3?) being embedded by moulding in said first portion (1?) and a second portion (2?) removably mounted on the lower end of the first portion (1?) and provided with the draining channel (17?).
    Type: Application
    Filed: December 20, 2012
    Publication date: December 18, 2014
    Applicant: Parker Hannifin Manufacturing Switzerland SA
    Inventor: Louis Zuccone
  • Publication number: 20140312256
    Abstract: A flow regulator which is capable of suppressing hysteresis and includes a housing which includes a fluid inlet port, a fluid outlet port and a valve seat positioned in a communication channel, through which the fluid inlet port and the fluid outlet port are communicatively connected; a plunger guide cylinder coupled to the housing; a plunger provided at an end thereof with a valve body which moves toward and away from the valve seat, the plunger being inserted into the plunger guide cylinder to be freely movable in an axial direction; a spring which biases the plunger in a direction to bring the valve body into contact with the valve seat; and an electromagnetic device which moves the plunger in a valve opening direction against the spring.
    Type: Application
    Filed: June 28, 2012
    Publication date: October 23, 2014
    Inventor: Toshinori Nitta
  • Patent number: 8863777
    Abstract: A flow control device is disclosed. The flow control device includes a solenoid, the solenoid including an armature. Also, a piston connected to the armature. The piston includes a primary orifice. The piston having an open position and a closed position. A piston spring connected to the piston is also includes and at least one secondary orifice. The movement of the piston to the open position at least partially opens the at least one secondary orifice and the movement of the piston to the closed position at least partially closes the at least one secondary orifice. The movement of the armature actuates the piston movement and controls fluid flow from the primary orifice through the at least one secondary orifice.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: October 21, 2014
    Assignee: DEKA Products Limited Partnership
    Inventors: Felix Winkler, Russell H. Beavis, Eric J. VanWyk
  • Publication number: 20140306136
    Abstract: A valve for metering fluid under pressure includes: a valve housing having an inlet opening and a metering opening for the fluid; an outward-opening valve needle pressure equalized via an elastic hollow body which is subject to the fluid pressure; and an electromagnet which lifts the valve needle up from the metering opening against the force of a valve closing spring. The valve housing is assembled from a valve tube and one valve body on the metering end and another on the inlet end, each being connected in a fluid-tight manner to the valve tube at the tube ends. The magnet pot including the enclosed solenoid coil is secured on the valve tube on the outside by the electromagnet, and the magnetic core is secured on the valve tube on the inside in such a way that it surrounds a needle section of the valve needle.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 16, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Dietmar SCHMIEDER, Tilo Landenfeld
  • Publication number: 20140239211
    Abstract: A valve having a metal insert with a fluid passage formed in the metal insert. A composite valve body is disposed at least partially around the metal insert and having at least one port in fluid communication with the fluid passage with the metal insert. A valve member is partially disposed in the metal insert and operable to control the fluid flow through the fluid passage of the metal insert and parts of the valve body.
    Type: Application
    Filed: May 2, 2014
    Publication date: August 28, 2014
    Applicant: BORGWARNER INC.
    Inventors: Kenneth W. Morgan, Michael E. Jones
  • Patent number: 8807519
    Abstract: A valve, in particular, a proportional pressure relief valve, includes an electrically controlled solenoid system (10) for the control of an operating part (12, 12a). The operating part cooperates with a valve element (26) extending longitudinally inside a valve housing (24) to release a fluid transport connection path between a fluid inlet (32) and a fluid outlet (34) in its open position and to block the through path in its closed position. An energy store, preferably in the form of a compression spring (58), is arranged between the operating part (12, 12a) and valve element (26) in a free gap between the two and tends to hold the valve element (26) in the direction of its closed position. The operating piece (12a) is embodied as a guide piston having a longitudinal guide for the valve element (26).
    Type: Grant
    Filed: April 1, 2006
    Date of Patent: August 19, 2014
    Assignee: Hydac Fluidtechnik GmbH
    Inventors: Peter Bruck, Markus Bill
  • Patent number: 8689772
    Abstract: A common rail fuel injector includes a fuel inlet, a set of nozzle outlets, a drain outlet, a nozzle chamber and a needle control chamber. A needle control valve includes a ceramic control valve member movable between a closed position in contact with a flat valve seat to block the needle control chamber from the drain outlet, and an open position at which the needle control chamber is fluidly connected to the drain outlet. A solenoid actuator is mounted in the injector body and includes an armature movable between an overtravel position and an energized position, but the armature has a stable un-energized position between the overtravel position and the energized position. A needle valve member is positioned in the injector body and includes an opening hydraulic surface exposed to fluid pressure in the nozzle chamber, and a closing hydraulic surface exposed to fluid pressure in the needle control chamber.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: April 8, 2014
    Assignee: Caterpillar Inc.
    Inventors: Gregory William Hefler, Adam Leonard Stecklein, Daniel Richard Ibrahim
  • Patent number: 8636262
    Abstract: Coupling apparatus for use with electric actuators are described herein. An example coupling apparatus described herein includes a coupling assembly to operatively couple a fluid flow control member of a fluid valve and a drive system of the electric actuator. Rotation of the drive system in a first rotational direction causes the coupling assembly to move in a first rectilinear direction and rotation of the drive system in a second rotational direction causes the coupling assembly to move in a second rectilinear direction opposite the first direction. The coupling assembly includes a biasing element that is to be deflected to provide a seat load to the fluid flow control member when the fluid flow control member is in sealing engagement with a valve seat of the fluid valve and electric power to the electric actuator is removed.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: January 28, 2014
    Assignee: Fisher Controls International, LLC
    Inventors: Ross Arthur Schade, Thomas Pesek, Galen Wilke
  • Patent number: 8397759
    Abstract: The electromagnetic spool valve of the present invention includes a movable linear solenoid section, first and second spools that are coaxially provided in inner space of a valve body so as to switch a state of communication and discommunication among plural ports of the electromagnetic spool valve, a first spring member provided between the first and second spools, and a second spring member provided between a cap member and the second spool. The spring load of the second spring member is set to be greater than the spring load of the first spring member.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: March 19, 2013
    Assignee: Keihin Corporation
    Inventors: Naoki Oikawa, Shigeto Ryuen, Hiroyuki Kato
  • Patent number: 8387947
    Abstract: A capacity control valve includes a solenoid portion; a tube placed in the solenoid portion; and a movable core which forms a slide surface that is fitted to the tube. An actuation rod has a joint portion and a valve body, the joint portion being engaged with an abutting surface of a solenoid rod portion, and the valve body opening or closing a control fluid passage. The joint surface of the solenoid rod portion or the abutting face of the actuation rod has a concave cone-shape surface while the other has a convex cone-shape portion. A bottom face of the concave cone-shape surface is formed as a wide area of either a planar surface or a circular cross section, wherein a head portion of the convex cone-shape portion is truncated to form a truncated cone surface, the truncated cone surface corresponding to the bottom face of the concave cone-shape surface.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: March 5, 2013
    Assignee: Eagle Industry Co., Ltd.
    Inventors: Norio Uemura, Toshiaki Iwa, Katsuya Shirai, Keigo Shirafuji
  • Patent number: 8322684
    Abstract: An electromagnetically actuated valve including a solenoid with a coil that generates a magnetic field upon being energized, a tubular member made of a non-magnetic material and disposed on an inner circumferential side of the coil, a movable valve body disposed within the tubular member and movable in an axial direction of the tubular member by an attraction force that is generated upon energizing the coil to thereby open and close a fluid passage, a first member made of a resin material and including a seat portion that is brought into contact with the movable valve body to close the fluid passage, and a first biasing member that biases the movable valve body toward the seat portion.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: December 4, 2012
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Yukinori Otsuka, Yohei Sato
  • Patent number: 8316888
    Abstract: A hydraulic control valve is provided having a solenoid body, an energizable coil, and an armature positioned adjacent the coil. A valve stem extends from the armature. The coil is energizable to move the armature and the valve stem from a first position to a second position. The valve body, the armature and the valve stem are configured so that the armature and the valve stem are biased to the first position by pressurized fluid, allowing the armature to operate without a biasing spring.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: November 27, 2012
    Assignee: Eaton Corporation
    Inventors: Gerrit VanVranken Beneker, Robert Dean Keller
  • Patent number: 8308129
    Abstract: A fail-safe electromagnetic linkage has a support device for a valve head, and an actuator component actuable by an actuator. The support device is coupled to the actuator component while power is supplied to the electromagnet and decoupled from the actuator component while power is not supplied to the electromagnet. The assembly further comprises a return mechanism configured to drive the support device relative to the actuator component if power is not supplied to the electromagnet.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: November 13, 2012
    Assignee: Rolls-Royce PLC
    Inventors: Matthew L Strange, Frank R Watson, Robert A Barker, Neil R Horn, Adrian J Miller
  • Patent number: 8297589
    Abstract: A valve including a linear positioning component operatively connected to a valve body and an actuating element.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: October 30, 2012
    Assignee: Waters Technologies Corp
    Inventors: Theodore Dourdeville, Frank A. Rubino, Kurt D. Joudrey, Joseph A. Luongo, John Angelosanto
  • Patent number: 8240636
    Abstract: The present invention is directed to a valve that has an orifice closing member adjacent to an orifice through which fluid can flow, a displacement member having a first portion and a second portion, where the first portion is adjacent to the orifice closing member when the valve is in an open position, a first magnet and a second magnet where the first and second magnets are sufficiently proximate to the displacement member to exert a magnetic force on the displacement member, and an actuator for generating a magnetic field to move the displacement member toward the first magnet, cause the first portion to press against the orifice closing member, and cause the orifice closing member to close the orifice.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: August 14, 2012
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventor: Mark Forrest Smith
  • Patent number: 8215611
    Abstract: A system and method for operating a solenoid valve is disclosed. The solenoid valve is operated by moving a first valve element (4) with respect to a second valve element (6, 7) a first distance. And then pulling the second valve element (6, 7) with the first valve element (4) a second distance where the second valve element (6, 7) moves against resistance from a seal (8) and where the movement of the second valve element (6, 7) opens a gap with respect to an orifice (10). The second element (6, 7) then moves a third distance under spring load to open an increased gap with respect to the orifice (10).
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: July 10, 2012
    Assignee: IMI Webber Limited
    Inventors: Gerald Scudamore, Cain Barnish, Paul Ellison
  • Patent number: 8141959
    Abstract: A vehicle brake hydraulic pressure control unit including a base body including a brake fluid flow path and a mounting hole portion having a bottom sealing surface and an inner circumferential sealing surface and an assembled part which is assembled into the mounting hole portion so as to communicate with the flow path. The assembled part includes a lower end sealing portion hermetically contacting with the bottom sealing surface of the mounting hole portion to form a lower side sealing portion and an outer circumferential sealing portion hermetically contacting with the inner circumferential sealing surface of the mounting hole portion to form a circumferential sealing portion. A hermetic accommodation space is defined by the lower side sealing portion and the circumferential sealing portion.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: March 27, 2012
    Assignee: Nissin Kogyo Co., Ltd.
    Inventor: Kazuhiro Ota