Including Solenoid Patents (Class 251/129.15)
  • Publication number: 20150028239
    Abstract: In an auxiliary chamber gas supplying device for a gas engine including an auxiliary chamber gas supply path through which fuel gas is supplied to an auxiliary chamber, the auxiliary chamber gas supply path is connected to a fuel gas supply source through a solenoid valve, and when the solenoid valve is opened, the fuel gas, in an amount corresponding to an opened period of the solenoid valve, is supplied from the fuel gas supply source to the auxiliary chamber through the auxiliary chamber gas supply path, and the opened period of the solenoid valve is set in such a manner that a predetermined amount of fuel gas is supplied to the auxiliary chamber, and a restriction unit that extends the opened period of the solenoid valve is formed in the auxiliary chamber gas supply path.
    Type: Application
    Filed: November 19, 2012
    Publication date: January 29, 2015
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kiyoshi Terakado, Yuta Furukawa, Hiroshi Yoshizumi
  • 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
  • Publication number: 20150028237
    Abstract: The present invention discloses a solenoid valve, it comprises: a movable core, provided with a flange at a lower end thereof; a driving assembly, in which the flange will abut against a bottom portion thereof and can move up against an upper portion thereof within a chamber of the driving assembly; a piston assembly, a central part of which seals a valve port of the solenoid valve, a periphery of which seals an annular chamber formed between the valve port and a valve body of the solenoid valve, the annular chamber being communicated to the inlet connection pipe, the piston assembly being disposed with a conducting hole at a center thereof, which is sealed by the bottom of the driving assembly; when opening the valve port, the flange of the movable core will first be moved to abut against the upper portion of the driving assembly, and then drive the driving assembly to move up in order to open the conducting hole, wherein since flow of fluid from an upper chamber above the piston assembly into an valve body
    Type: Application
    Filed: July 11, 2012
    Publication date: January 29, 2015
    Applicant: Danfoss Tianjin Ltd.
    Inventors: Cheng Liu, Jinhong Qiao, Changdong Wang, Weiwei Jiang
  • Patent number: 8939430
    Abstract: An electromagnetic linear valve includes: (a) a plunger including a large outside-diameter portion and a small outside-diameter portion, and (b) a housing having a through-hole and including a large inside-diameter portion in which the large outside-diameter portion is inserted with a clearance being defined between the large inside-diameter portion and the large outside-diameter portion, and a small inside-diameter portion in which the small outside-diameter portion is inserted with a clearance being defined between the small inside-diameter portion and the outside-diameter portion. The plunger has an end portion which serves as a valve body that is to be seated on a valve seat constituted by an opening of the through-hole. The large outside-diameter portion has an end portion constituted by another end portion of the plunger that is opposite to the above-described end portion of the plunger.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: January 27, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masaki Nanahara, Kei Sato
  • Patent number: 8936230
    Abstract: A normally open electromagnetic valve includes: a fixed core; a movable core which is driven when excited; a valve seat member in the fixed core and having a funnel-shaped valve seat surface; a valve member disposed so that the valve member advances or retreats together with the movable core with one end of the valve member kept in contact with the movable core, and that the other end of the valve member closes or opens a flow passage by coming into contact with or separates from the valve seat surface; and a return spring. The fixed core has a cylindrical holding hole. The valve member advances or retreats being guided by the holding hole in sliding contact with the holding hole. The movable core has a projection which projects toward the fixed core and which is directly inserted into the holding hole.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: January 20, 2015
    Assignee: Nissin Kogyo Co., Ltd
    Inventors: Yoshiyuki Takamatsu, Tetsuo Sasaki
  • Publication number: 20150014561
    Abstract: A controller of an electromagnetic valve driving circuit include a switching element connected to an electromagnetic valve solenoid, a cutoff circuit for cutting off a connection between a power supply and the switching element, and a current detecting unit for detecting a current flowing in the solenoid. The controller includes an abnormality diagnosing unit for outputting a cutoff command to the cutoff circuit for cutting off the connection between the power supply and the switching element, and outputting a switching command causing the switching element to perform a switching operation when a predetermined diagnosis condition is satisfied, and determining that the cutoff circuit normally operates when the solenoid current is less than a threshold value and determining that the cutoff circuit operates abnormally when the solenoid current is greater than or equal to the threshold value while outputting the cutoff command and the switching command.
    Type: Application
    Filed: February 22, 2013
    Publication date: January 15, 2015
    Applicant: AISIN AW CO., LTD.
    Inventors: Kenta Akazaki, Moritaka Fukuda, Kohei Kondo, Kento Yamashita
  • Publication number: 20150013802
    Abstract: The invention relates to a pressure control valve, composed of at least a valve component; situated between a control chamber and a return chamber, the valve component has an orifice, which a control element can close, partially close, or open, and the control element has at least one, at least truncated cone-like first control element region with a truncated cone angle and the orifice is formed by a through opening, which extends through the orifice element and at its end oriented toward the control element, has at least one cone-like, in particular first, orifice region with a cone angle; and the cone angle is greater than the truncated cone angle.
    Type: Application
    Filed: July 11, 2014
    Publication date: January 15, 2015
    Inventors: Karlheinz Mayr, Georg Scherer, Helmut Mang
  • Publication number: 20150014560
    Abstract: An electromagnetic actuator with at least one solenoid coil, one armature, which is magnetically movable by means of the solenoid coil in an armature area and has a first and a second tapering, and a magnetic yoke. The yoke has a first dipping stage in which the first tapering of the armature is dipped upon a shifting of the armature in a direction of actuation, and a second dipping stage in which the second tapering of the armature is dipped upon a shifting of the armature in the direction of actuation. A maximum radial external dimension of the armature in the area of the second tapering is smaller than a minimum radial internal dimension of the second dipping stage. In addition, the invention refers to a fluid valve that is actuated by means of the electromagnetic actuator.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 15, 2015
    Inventors: Karlheinz Mayr, Markus Moosmann
  • Publication number: 20150014562
    Abstract: Exemplary embodiments are directed to vent valves, systems and methods generally involving a valve body that includes a seat retainer, a needle and a seat. The seat includes a bore extending there through and the needle includes a needle stem and a needle head. The seat is disposed inside the seat retainer. The needle stem is disposed inside the bore. The needle is configured to be pulled through the seat to stop flow through the bore. Exemplary embodiments are further directed to a system including a stem return spring mechanism and a solenoid return spring mechanism. A processing device is configured to actuate the solenoid return spring mechanism to permit the stem return spring mechanism to pull the needle through the seat to stop flow through the bore.
    Type: Application
    Filed: March 7, 2013
    Publication date: January 15, 2015
    Inventors: Joshua A. Shreve, Steven D. Trudeau
  • Patent number: 8931758
    Abstract: Provided is a solenoid valve stable in response performance, whose quickness and damping performance are appropriate. In the solenoid valve, a respiration port for flowing fluid into and out from a space located on one side of a plunger that faces the spool is formed in an end portion of a valve sleeve. Further, a respiration groove, which causes the space on the one side of the plunger and the respiration port to communicate with each other when an end portion of the spool and an end portion of a center post are in contact with each other, is formed on the spool. This configuration makes it possible to discharge, with an appropriate level of flow-channel resistance, fluid placed in the space located on the one side of the plunger.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: January 13, 2015
    Assignee: Eagle Industry Co., Ltd.
    Inventors: Yoshinari Kasagi, Hiroyuki Nishinosono, Hiroyuki Iwanaga
  • Publication number: 20150008350
    Abstract: An assembly for actuating a double-acting shift cylinder of a shift assembly of an automatic transmission of a motor vehicle includes a hydraulic fluid reservoir having a motor-driven hydraulic pump and two control valves that are each connected to a pressure supply line of the hydraulic pump and to a return line to the hydraulic fluid reservoir. The shift cylinder has two pressure chambers that are each connected to one of the control valves. The control valves each connect one pressure chamber of the shift cylinder to the pressure supply line of the hydraulic pump or to the return line to the hydraulic fluid reservoir. The actuating assembly includes at least one pressure-limiting valve that connects the pressure supply line to the return line if a hydraulic over-pressure is present. The control valves can be 3/2-directional valves having integrated pressure-limiting valves.
    Type: Application
    Filed: November 28, 2012
    Publication date: January 8, 2015
    Inventors: Hansjorg Kraft, Reiner Krugener, Ingo Meyer
  • Patent number: 8925585
    Abstract: An oil pressure regulation valve includes a spool supported in a sleeve to be slidable in an axial direction, a solenoid actuator disposed to generate an electromagnetic force for driving the spool to one axial end side, and a biasing portion configured to bias the spool to the other axial end side. The sleeve is provided with an input chamber to which an oil pressure input port is open, and an output chamber to which an oil pressure output port is open. The spool includes a land portion that is exposed to the output chamber to be biased to the one axial end side by using oil pressure in the output chamber, and the spool is movable to the one axial end side when the land portion is biased to the one axial end side by using the oil pressure in the output chamber.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: January 6, 2015
    Assignee: Denso Corporation
    Inventors: Hiroshi Yasoshima, Akinori Hirano
  • Patent number: 8925568
    Abstract: Embodiments of the invention are directed to systems and methods for automating the operation of a solenoid valve to prevent overheating of solenoid elements. The solenoid valve controls the flow of a fluid, such as gas, and may be automatically interrupted, or shut-off, of power upon the occurrence of fluctuating currents or other events. Once the problem has been removed or repaired, the flow of fluid through the solenoid valve may resume.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: January 6, 2015
    Inventors: Ferdinand Villegas Legaspi, Perfecto Ferrer Gallardo, Jr., Fernando Medina Bernardo
  • 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
  • Patent number: 8915482
    Abstract: The invention refers to a solenoid which comprises at least one armature supported in an armature space. The armature space is encircled by a coil carrying a number of windings which can be loaded with current. The magnetic field generated when loaded with current moves the armature against the pole core. In the armature a rebounding tappet is supported moving. Its tappet front facing the pole core projects, when not electrified, over the front of the armature.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: December 23, 2014
    Assignee: SVM Schultz Verwaltungs—GmbH & Co. KG
    Inventors: Johann Weiβ, Peter Wiedemann
  • Publication number: 20140367597
    Abstract: The invention relates to an electromagnetic valve, on the magnet armature of which a circumferential annular groove is arranged and in the valve housing of which an axially movable throttle disk is arranged, the throttle disk being fundamentally positioned at the height of the annular groove. The throttle disk throttles the pressure-medium flow along the magnet armature dependent on the actuation of the magnet armature in order to damp the armature impact noise.
    Type: Application
    Filed: January 15, 2013
    Publication date: December 18, 2014
    Applicant: Continental Teves AG & Co. oHG
    Inventors: Christian Courth, Christoph Voss
  • Publication number: 20140367595
    Abstract: A stator is located in a coil. A movable body is attracted toward the stator when the stator is magnetized by the coil. A valve element is movable integrally with the movable body to open and close a fluid passage when the coil is activated and de-activated. A regulating member is opposed to the movable body to regulate movement of the movable body. An elastic member is equipped to one of the regulating member and the movable body and is elastically deformable between the movable body and the regulating member when the movable body is attracted toward the stator. The elastic member is located at a position shifted in a radial direction relative to the regulating member or the movable body. The elastic member is in an asymmetrical shape relative to an axial rotational direction.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 18, 2014
    Applicant: DENSO CORPORATION
    Inventor: Yuichiro Miura
  • Publication number: 20140361206
    Abstract: A solenoid valve assembly is provided which includes a ferromagnetic casing forming a generally tubular envelope, a flux tube integrally formed with the casing and extending axially generally there from defining and axially extending annular space there between, the flux tube having a first portion connected with the casing and a second portion integral with the first portion be divided there from by a flux choke, and also including an armature aligned and slidably mounted within the flux tube for imparting movement to a valve member.
    Type: Application
    Filed: January 22, 2013
    Publication date: December 11, 2014
    Inventors: Garrett R. Holmes, David C. Mills
  • Publication number: 20140353533
    Abstract: A tube assembly for a solenoid operated cartridge valve includes an adapter having an axially extending central bore along a longitudinal axis of the tube assembly for receiving an armature; a plug axially aligned with the central bore of the adapter; a nonmagnetic tube having a central bore along the longitudinal axis and aligned with the central bore of the adapter, the tube having a pair of respective annular axially-facing end surfaces abutting the adapter and the plug, the end surfaces being obliquely angled with respect to the longitudinal axis; and filler material positioned between and joining the adapter and the tube, and the tube and the plug.
    Type: Application
    Filed: June 2, 2014
    Publication date: December 4, 2014
    Applicant: Parker-Hannifin Corporation
    Inventor: William F. Guse, JR.
  • Publication number: 20140352971
    Abstract: A solenoid-operated valve of the kind that is used in a subsea control pod comprises a valve assembly (2) and a solenoid assembly (1). The valve assembly (2) comprising has fluid ports (P, S, T) for the receipt and delivery of hydraulic control fluid and a valve element (37, 38, 39) that is actuable between open and closed positions in order to control the flow of hydraulic control fluid between the fluid ports. The valve element (37, 38, 39) is actuable by an actuating member of the solenoid assembly (1). The solenoid chamber (A) is filled with oil and sealed against ingress of hydraulic control fluid from the valve chamber (36) and from the ingress of oil and/or seawater from the control pod. A movable pressure balancing device (30) is provided in the solenoid assembly (1) so as to ensure that the internal pressure of the oil in the solenoid chamber (A) and the external pressure of the oil in the control pod are balanced.
    Type: Application
    Filed: July 5, 2012
    Publication date: December 4, 2014
    Applicant: Bifold Fluidpower Limited
    Inventor: James R. Renshaw
  • Publication number: 20140352819
    Abstract: A microfluidic valve includes: a first structural layer and a second structural layer; a microfluidic circuit having a first microfluidic conduit and a second microfluidic conduit, which are defined in a superficial portion of the first structural layer, are adjacent, and are separated by a wall; a membrane set between the first structural layer and the second structural layer and delimiting the microfluidic circuit on one side; and a recess containing a gaseous fluid in the second structural layer. The membrane is movable in response to an actuation stimulus between a closed position, in which the first and second microfluidic conduits are fluidly decoupled, and an open position, in which the membrane is at least in part retracted into the recess and the first and second microfluidic conduits are fluidly coupled by means of a fluidic passage defined between the wall and the membrane.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 4, 2014
    Applicant: STMicroelectronics S.r.l.
    Inventors: Marco Pugliese, Francesco Ferrara
  • Publication number: 20140346381
    Abstract: A valve according to an exemplary aspect of the present disclosure includes, among other things, a return spring. A latch mechanism includes a first magnet and a second magnet. One of the first and second magnets magnetically latches to the other first and second magnets in response to a control signal to minimize decompression of said return spring.
    Type: Application
    Filed: May 22, 2013
    Publication date: November 27, 2014
    Applicant: Hamilton Sundstrand Corporation
    Inventors: William Conn, Jason Bench
  • Publication number: 20140346382
    Abstract: An electromagnetically actuatable valve is described, for controlling fluids, having an inner pole and a magnetic armature, the inner pole having a first end face oriented to the magnetic armature, and the magnetic armature having a second end face oriented to the inner pole, a first contact line and a second contact line being present between the first and second end face when the inner pole and the magnetic armature come into contact with one another, and a damping volume being present between the first and second contact line when the inner pole and the magnetic armature come into contact with one another.
    Type: Application
    Filed: May 23, 2014
    Publication date: November 27, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Martin SCHEFFEL, Philipp ROGLER, Joerg ABEL, Jens POHLMANN, Anna Salvat MASSONI
  • Publication number: 20140346383
    Abstract: A method for manufacturing a solenoid valve or a fuel injector, including a sleeve, a valve needle situated inside the sleeve in a radial direction and guided so as to slide, a solenoid coil situated outside of the sleeve in a radial direction, a magnetic core situated inside the sleeve in a radial direction, and a magnet armature situated inside the sleeve in a radial direction, axially opposite to the magnetic core; the magnet armature being situated on the valve needle, the sleeve having a low wall thickness in a thin-walled region situated between the magnet armature and the solenoid coil, the thin-walled region strengthened by a reinforcing element for absorbing radial forces; and a method step, during which, the reinforcing element is deposited onto the sleeve, in the thin-walled region, in a radial direction, outside of the sleeve, using a molten bath or cold gas spraying method.
    Type: Application
    Filed: September 26, 2012
    Publication date: November 27, 2014
    Inventors: Juergen Graner, Martin Maier, Nikolaus Hautmann, Ralf Diekmann
  • Patent number: 8893673
    Abstract: A tubular valve for adjusting the compression ratio of a variable compression ratio engine includes a straight tube capable of longitudinal translational movement in a valve casing including a low-pressure chamber, the straight tube including a first end opening into the low-pressure chamber and a second end opening into a high-pressure chamber, the second end adapted to contact with at least one shut-off surface secured to the valve casing to seal the second end, the straight tube contacting the shut-off surface by at least one nonreturn and shut-off spring; sealing element for sealing between the external surface of the straight tube and the valve casing isolating the high-pressure chamber from the low-pressure chamber, the sealing element including a nonreturn tube inside which the straight tube is held; and an electric actuator for applying to the straight tube a force opposing that of the spring.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: November 25, 2014
    Inventor: Vianney Rabhi
  • Publication number: 20140339449
    Abstract: A valve assembly for an injection valve may include a valve body including a central longitudinal axis, the valve body having a cavity with a fluid inlet portion and a fluid outlet portion, and a chamber, with an electro-magnetic actuator unit arranged in the chamber, and 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. The valve needle is designed to be actuated by the electro-magnetic actuator unit. A bellows arranged between the valve body and the valve needle is sealingly coupled to the valve body and to the valve needle. The bellows prevents a fluid flow between the cavity and the chamber. An injection valve comprising such a valve assembly is also disclosed.
    Type: Application
    Filed: August 29, 2012
    Publication date: November 20, 2014
    Applicant: CONTINENTAL AUTOMOTIVE GMBH
    Inventor: Licia Del Frate
  • Publication number: 20140332706
    Abstract: The invention of the present application addresses the problem of providing a normally open roll coolant valve. This roll coolant valve includes: a valve body (1); an end cover (8) fitted into one end of the valve body (1); an annular coil (11) provided along the inside wall of the valve body (1); a stationary core (5) having a form whereby a hollow disc-shaped base part and a hollow annular part extending therefrom are formed integrally, and arranged so as to make contact with the coil (11); a needle (9) that is capable of sliding within the aforementioned hollow annular part and making contact with the rear aperture of a poppet (3) to seal this aperture; a movable core (4) that has the needle (9) and is arranged so as to be capable of sliding on the inner surface of the coil (11); an elastic element (12) provided between the stationary core (5) and the movable core (4); and a circuit for supplying power to the aforementioned coil.
    Type: Application
    Filed: April 24, 2012
    Publication date: November 13, 2014
    Inventors: Shoichi Toyonaga, Koji Akaya, Yoshihito Nakazato
  • Patent number: 8882079
    Abstract: A stator is provided with a ring-shaped outer stator-projection and a ring-shaped inner stator-projection. A plunger is provided with a ring-shaped outer plunger-projection and a ring-shaped inner plunger-projection. A magnetic force is generated at three portions between the plunger and the stator. The inner stator-projection has a first tapered surface and the outer plunger-projection has a second tapered surface. The first tapered surface and the second tapered surface confront each other when the plunger moves toward the stator.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: November 11, 2014
    Assignee: Denso Corporation
    Inventors: Jiro Kondo, Yoshiyuki Murao, Koichiro Matsumoto
  • Patent number: 8882475
    Abstract: High-response and high-power electromagnetically driven flow rate control valve with flange portion forming an attracting surface on an anchor, a first peripheral surface portion having a diameter smaller than the flange portion, and a cylindrical non-magnetic area opposing an outer peripheral surface of the flange portion with a third clearance interposed therebetween are provided, and a first fluid trap portion communicating with the back pressure chamber via the third clearance is provided. When the diameter of the flange portion is enlarged in order to enlarge the cross-sectional area of the attracting surface, fuel that is displaced by the anchor is increased, but is partly absorbed in the first fluid trap portion, so that the fuel passing through the fuel channel does not increase in comparison with fuel before the diameter of the flange portion is enlarged. Accordingly, the cross-sectional area of the attracting surface may be enlarged.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: November 11, 2014
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shunsuke Aritomi, Kenichiro Tokuo, Masayuki Suganami, Akihiro Munakata, Satoshi Usui
  • Publication number: 20140326912
    Abstract: The pilot valve (14) comprises a body (7, 7a) in which there is defined a control chamber (11) which is intended to communicate with the inlet (3) of the hydraulic valve (1) and which, through a restricted outlet passage (12) associated with a valve seat (13), is able to be selectively brought into communication with the outlet (4) of the hydraulic valve (1); at least one core (23) mounted movably within a portion (7a) of said body (7, 7a) and inside the control chamber (11) and carrying a closing member (24) cooperating with the valve seat (13); and an actuator (16-21) including a solenoid or coil (15) of copper wire, mounted around said portion (7a) of the body (7, 7a), for selectively controlling the position of the core (23) and the closing member (24) with respect to the valve seat (13) and the communication between the control chamber (11) and the restricted outlet passage (12); and wherein the ratio of the diameter (d) of the restricted outlet passage (12) to the weight (m) of the solenoid (16) is betw
    Type: Application
    Filed: December 12, 2012
    Publication date: November 6, 2014
    Applicant: ELBI INTERNATIONAL S.P.A.
    Inventors: Paolo Da Pont, Paolo Ravedati, Giosue Capizzi, Maurizio Rendesi, Fabrizio Paris, Roberto Bosio, Francesco Di Benedetto
  • Publication number: 20140326911
    Abstract: A valve device for a hydraulic circuit includes an actuator unit, a valve unit and an opening. The actuator unit comprises an electromagnetic circuit comprising a movable armature, a core, a coil configured to be supplied with a current and a flux guiding means, and a space arranged in a valve interior between the armature and the core. The valve unit comprises an outlet, an inlet arranged between the outlet and the space in the valve interior, a valve seat arranged between the inlet and the outlet, and a valve closing body connected with the armature. The valve closing body is spring-loaded towards the valve seat. The opening is arranged at an end of the valve unit opposite to the space. The opening comprises a valve tappet arranged therein. The valve tappet is pressure-loaded and displaceable counter to the valve closing body in an opening direction.
    Type: Application
    Filed: August 21, 2012
    Publication date: November 6, 2014
    Applicant: PIERBURG GMBH
    Inventors: Rolf Lappan, Werner Buse, Christoph Sadowski, Lukas Romanowski
  • Publication number: 20140319392
    Abstract: An armature for an injector including at least one magnetic region and at least one non-magnetic region, the armature being developed as a one-piece component, the magnetic and non-magnetic regions being integrally connected to each other by a two-component powder injection molding process, and the magnetic region being completely enclosed by the non-magnetic region.
    Type: Application
    Filed: June 11, 2012
    Publication date: October 30, 2014
    Inventors: Matthias Schumacher, Andreas Burghardt, Jochen Rager
  • Patent number: 8870160
    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: Grant
    Filed: July 13, 2011
    Date of Patent: October 28, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Massimiliano Ambrosi
  • Publication number: 20140312254
    Abstract: A valve device (10) includes a hollow body (12) adapted to be passed through by a flow of fluid and having an inlet section (12a) and at least one outlet section (12b) to receive and dispense fluid. A joining element (14) connects to a fluid source, and connects at the inlet section (12a). A support bracket (16) is assembled to the inlet section (12a) to hold the joining element (14) connected to the hollow body (12), and is configured to be fastened to an external load-bearing structure. One electrically controlled valve (18) is arranged in the hollow body (12) between the inlet section (12a) and the outlet section (12b), and configured for selectively controlling the exit of the flow of fluid.
    Type: Application
    Filed: November 14, 2012
    Publication date: October 23, 2014
    Inventors: Giorgio Molino, Paola Ravedati, Maurizio Rendesi
  • Publication number: 20140312255
    Abstract: The present invention relates to a gaseous sample injection valve. The gaseous sample injection valve includes a middle body injecting a fixed amount of a gaseous sample into the vacuum chamber of a mass spectrometer, the middle body being constituted by a gaseous sample injection tube, a gaseous sample discharge tube, a storage part, and a vacuum chamber connection tube; an upper body accommodating a first solenoid coil, a first plunger, and a first packing; and a lower body accommodating a second solenoid coil, a second plunger, and a second packing. The gaseous sample injection valve according to the present invention may be miniaturized to utilize a lightweight portable mass spectrometer. Also, the vacuum pump may be reduced in load to extend the operation life-cycle of the vacuum pump. In addition, when the gaseous sample is analyzed by using the mass spectrometer, a uniform mass spectrum with respect to the gaseous sample may be obtained.
    Type: Application
    Filed: November 18, 2011
    Publication date: October 23, 2014
    Applicant: KOREA BASIC SCIENCE INSTITUTE
    Inventors: Mo Yang, Seung Yong Kim, Hyun Sik Kim
  • Publication number: 20140312253
    Abstract: An attachment mechanism to a fluid system is provided herein.
    Type: Application
    Filed: June 30, 2014
    Publication date: October 23, 2014
    Inventor: Livne GAN
  • Publication number: 20140311440
    Abstract: An oil pump control valve assembly includes a control valve for controlling a flow of a fluid, and a solenoid for operating the control valve. The control valve includes a tube-like holder having a hollow internal space, configured to include an inflow port formed at one end thereof, a tube-like first valve sheet formed in the middle end of the holder, a ball valve mounted in the first valve sheet, a second valve sheet coupled to a second end of the first valve sheet, and a load mounted in the second valve sheet, one end thereof being extended through the second valve sheet to come into contact with the ball valve, wherein, when the solenoid is operated, the ball valve is moved to open the inflow port.
    Type: Application
    Filed: November 1, 2012
    Publication date: October 23, 2014
    Inventors: Chang Hoon Lee, Eui Dong Roh, Ji Hoon Park
  • 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
  • Patent number: 8857788
    Abstract: An electronic expansion valve (50) includes a small hole (54a) that expands a refrigerant, a valve body (55c) that opens and closes the small hole, an elastic member (70) that urges the valve body to close the small hole, and a solenoid (61) that suctions the valve body to open the small hole, and expands the refrigerant by opening and closing the valve body. The elastic member is a disc spring in which a plurality of slits (73) formed in a spiral form is provided at mutually equal pitches on the perimeter. Therefore, there is no need for a guide, the occurrence of sludge due to sliding is suppressed, and the electronic expansion valve operates stably over a long period.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: October 14, 2014
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Yasutaka Sanuki, Yukihiro Takano, Naoki Inoshita, Koji Takiguchi, Shusuke Saito, Nobutoshi Migishima
  • Publication number: 20140299804
    Abstract: An electromagnetic actuator, which is arranged at a position opposing to a hydraulic control valve, has a movable-core chamber for movably accommodating a movable core and an air breathing passage for communicating the movable-core chamber to the atmosphere. An inside opening of the air breathing passage is formed in an inner wall of the movable-core chamber, while an outside opening of the air breathing passage is formed in an outer wall of the actuator, which is in contact with the atmosphere. The outside opening is formed at such a position out of an oil-splashing area, to which oil discharged from an oil-discharge port of the hydraulic control valve is directly splashed. According to the above structure, it is possible to prevent the oil discharged from the oil-discharge port from rushing into the movable-core chamber through the air breathing passage.
    Type: Application
    Filed: April 3, 2014
    Publication date: October 9, 2014
    Applicant: DENSO CORPORATION
    Inventor: Masashi ARAO
  • Patent number: 8851450
    Abstract: A composite component includes at least two sections having different magnetization, the at least two sections in the integrally formed component lying directly next to each other. The base material of the composite component is a semi-austenitic steel. A first section has a higher saturation polarization JS than an adjacent second section, the second section having a minimum saturation polarization JS of 0.1 T to 1.3 T and/or a maximum relative permeability ?r of 2 to 150. The composite component is suitable for use in electromagnetic valves, e.g., in fuel injectors of internal combustion engines.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: October 7, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Takuya Mizobe, Stefan Oetinger
  • Patent number: 8851447
    Abstract: An integrated irrigation valve control device has a coil adapted to develop an electromagnetic flux sufficient to cause actuation of irrigation equipment. Control circuitry is electrically coupled to the coil to control the flux at the coil. A housing covers at least a portion of the coil and at least a portion of the control circuitry.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: October 7, 2014
    Assignee: Rain Bird Corporation
    Inventors: Timothy J. Crist, Matthew S. Prucinsky, Michael A. Lorenz
  • Publication number: 20140291563
    Abstract: An actuating device for a control body of a valve includes an armature guide configured to receive a magnetic armature and an armature plunger in such a manner that the magnetic armature and armature plunger can move in relation to a longitudinal direction. An outer thread is located on a longitudinal end of the armature guide that is remote from the armature plunger. The outer thread includes a first cross-sectional profile forming a thread tip that points towards an exterior. A holding nut having an inner thread is screwed onto the outer thread of the armature guide and lies at least indirectly on the synthetic material casing of the electrical coil. The inner thread includes a second cross-sectional profile that is complementary to the first cross-sectional profile, and a thread base configured in a clamping region in a gap free manner with respect to the first cross-sectional profile.
    Type: Application
    Filed: March 20, 2014
    Publication date: October 2, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Christian Doerner, André Selke, Liebhart Zaiser, Matthias Lang, Juergen Gruen
  • Publication number: 20140291564
    Abstract: In an electromagnetic linear valve, a resilient member urges a plunger in a direction in which the core-opposing portions move away from a core portion, and moves the plunger in a direction in which the core-opposing portions approach the core portion where an electric current is supplied to a coil. Where no electric current is supplied to the coil, an axially opposing surface area as a surface area of portions of the core-opposing portions which respectively oppose inner peripheral surfaces of recessed portions is smaller than a radially opposing surface area as a surface area of portions of the core-opposing portions which respectively oppose bottom surfaces of the recessed portions, and the axially opposing surface area becomes larger than the radially opposing surface area where an electric current is supplied to the coil and the core-opposing portions approach most to the core portion.
    Type: Application
    Filed: November 4, 2011
    Publication date: October 2, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kei Sato, Masaki Nanahara, Katsuhiro Kanamori, Masakuni Suzuki, Takeshi Ishida
  • Patent number: 8844900
    Abstract: An activation element of an electromagnetic actuating unit of a hydraulic valve which has an armature that is essentially cylindrical and which is arranged in a slidable fashion in the actuating unit. Also, a method for manufacturing an activation element of an electromagnetic actuating unit of a hydraulic valve. The activation element has at least one substantially cylindrical armature, one plunger rod and one magnet cone. The plunger rod and the magnet cone are embodied in one piece with the armature.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: September 30, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Jens Hoppe, Stefan Konias, Yi Wang
  • Publication number: 20140286798
    Abstract: A servo regulator that causes a servo piston to move on the basis of working fluid pressure in two pressure chambers includes: a sleeve that is inserted into an insertion hole formed in a case and has a supply port capable of supplying a working fluid from a fluid pressure source to one of the pressure chambers; a spool valve disposed in the sleeve so as to be biased by a biasing member; and a solenoid that is attached to the case in order to drive the spool valve via a plunger. The sleeve includes a pressure receiving portion on which a fluid pressure of the working fluid from the fluid pressure source is exerted, and is pressed against an end surface of the solenoid by a biasing force acting on the pressure receiving portion.
    Type: Application
    Filed: January 21, 2013
    Publication date: September 25, 2014
    Inventors: Hiroki Kato, Susumu Narita, Tetsuya Iwanaji, Takeru Hosokawa
  • Patent number: 8839767
    Abstract: A valve assembly is provided that can perform an overpressure relief function to vent fluid from a first component, such as to vent fuel vapor from a fuel tank, to a second component, such as a carbon canister, without being affected by the vapor pressure in the vent line to the second component. That is, the valve opens to provide pressure relief when needed regardless of the vapor pressure against which it opens. The valve assembly may also include a solenoid that is controllable to allow fluid flow separately from the movement in response to vapor pressure.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: September 23, 2014
    Assignee: Eaton Corporation
    Inventor: Robert Dean Keller
  • Patent number: 8840084
    Abstract: An irrigation control device comprises a coil adapted to develop an electromagnetic flux sufficient to cause actuation of irrigation equipment. Control circuitry is electrically coupled to the coil to receive control signals from an irrigation control unit and to control the flux at the coil. A spacer is configured to maintain the coil at a predetermined position relative to the control circuitry.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: September 23, 2014
    Assignee: Rain Bird Corporation
    Inventors: Timothy J. Crist, Matthew S. Prucinsky
  • Publication number: 20140264113
    Abstract: A linear actuated valve controls the flow of fluid between a first passageway and a second passageway. The valve can be solenoid actuated so as to selectively permit and prohibit fluid flow communication between the first passageway and the second passageway. The valve can include a mechanical latch that provides a de-energized yet valve open position.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: PACCAR Inc
    Inventor: Benjamin T. Grover
  • Publication number: 20140264114
    Abstract: According to various aspects, exemplary embodiments are disclosed of a one-piece collar-tube for a valve assembly. Also disclosed are valve assemblies that include a one-piece collar-tube. Also disclosed are exemplary embodiments of methods. In an exemplary embodiment, a method generally includes integrally forming a collar portion and a tube portion for a valve assembly from a non-magnetic material as a single piece having a monolothic construction.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: EMERSON ELECTRIC CO.
    Inventors: Thomas Martin Farace, David Edward Ayton, Douglas Michael Siefring, Adam Robert Roush