Balanced Valve Patents (Class 251/129.07)
  • Patent number: 11073222
    Abstract: An electromagnetic switch valve for opening or closing an oil or coolant circuit in a motor vehicle, having an electromagnet, which has a coil and a movable armature, wherein the armature is coupled to a valve element, via which a valve seat in the coolant circuit can be sealed, wherein the switch valve is designed to be pressure balanced, and the valve element, pointing in the direction of the valve seat, is designed to be at least approximately hollow-walled.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: July 27, 2021
    Assignee: Kendrion (Villingen) GmbH
    Inventors: Björn Bergfeld, Joachim Flühs, Frank Zelano, Wolfgang Bürk
  • Patent number: 11035490
    Abstract: A solenoid valve main body has a space with an annular shape continually formed in a circumferential direction between a sleeve and the stator, a first breathing hole which allows an outside of the solenoid valve main body to communicate with the space and a second breathing hole which allows the space to communicate with the accommodation portion. The first breathing hole and the second breathing hole are positioned such that a clockwise distance and an anticlockwise distance in the circumferential direction from the first breathing hole to the second breathing hole are different from each other.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: June 15, 2021
    Inventors: Kenta Furukawa, Hiroyuki Iwanaga, Yoshinari Kasagi
  • Patent number: 11009141
    Abstract: In an invention including: a piezoelectric element (13) which generates, as a displacement, a driving force necessary for an operation of a valve body (12) which is an operating body; a displacement enlarging mechanism (14) including at least a spring element so as to enlarge a displacement of the piezoelectric element (13) which acts on the valve body (12); and a driving device (15) which operates the valve body (12) by applying a voltage to the piezoelectric element (13) to extend the piezoelectric element (13), the driving device (15) includes a first filter processing unit (15x) having an inverse function characteristic of a mechanical resonance frequency when operating the displacement enlarging mechanism (14), and is configured to apply, a voltage which reduces the mechanical resonance, to the piezoelectric element (13) through this resonance suppression processing unit (15x).
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: May 18, 2021
    Assignee: SINFONIA TECHNOLOGY CO., LTD.
    Inventor: Susumu Irie
  • Patent number: 10890269
    Abstract: In a valve apparatus, a housing includes a plurality of through holes through which a fluid flows. A first valve member opens and closes a first through hole. A second valve member opens and closes at least one second through hole. A fixed core does not move relative to the housing. A coil forms magnetic field. A first movable core moves integrally with the first valve member. When the coil forms the magnetic field, a magnetic attractive force is generated between the first movable core and the fixed core. A second movable core moves integrally with the second valve member. When the coil forms the magnetic field, a magnetic attractive force is generated between the second movable core and the fixed core. A magnetic constriction portion is provided between the fixed core and the first movable core. The second through hole is opened after the first through hole is opened.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: January 12, 2021
    Assignee: DENSO CORPORATION
    Inventors: Takashi Furukawa, Toshihisa Nakajima
  • Patent number: 10781931
    Abstract: A method for valve type recognition of a valve connected to an actuator, said valve being one of a first valve type and a second or further valve type. The actuator includes an actuator spindle which can be operatively connected to a valve rod. If the maximum allowable stroke of the actuator spindle is the same, or smaller than, a reference value then it is determined that the valve connected to the actuator is of the first valve type. If the maximum allowable stroke is larger than said reference value, the valve is determined to be of the second valve type. An actuator is provided for use in such a method.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: September 22, 2020
    Assignee: IMI HYDRONIC ENGINEERING INTERNATIONAL SA
    Inventor: Anders Engelbrektsson
  • Patent number: 10760703
    Abstract: A valve with a sliding mechanism is described. In one embodiment, the valve has a housing and a valve housing, wherein the housing accommodates an electromagnet and the valve housing accommodates a valve part, and the housing, facing the valve housing, has a magnetic core and the magnetic core in the electromagnet forms an armature compartment base which delimits the armature compartment and against which the armature movably mounted in the armature compartment bears in a first position of the electromagnet, and the magnetic core has a penetrating opening in the region of the armature compartment to accommodate an armature bar operatively connected to the armature and the valve housing accommodates a sliding sleeve which extends along a longitudinal axis.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: September 1, 2020
    Assignee: SVM Schultz Verwaltungs-GmbH & Co. KG
    Inventors: Helmut Mang, Florian Schreiber
  • Patent number: 10422308
    Abstract: The invention relates to a pressure regulating valve for regulating pressure in a high-pressure fuel accumulator for an internal combustion engine, comprising a valve piston (5) accommodated axially displaceably in a bore (1) in a valve housing (2), acting on a valve closing member (3) in the direction of a valve seat (4), said valve piston being connected at the end thereof facing away from the valve seat (4) to an armature (6) of a magnetic assembly (7) for actuating the pressure regulating valve, wherein the armature (6) is accommodated in an armature chamber (8) and the valve closing member (3) is accommodated in a valve chamber (9). According to the invention, the valve chamber (9) and the armature chamber (8) are hydraulically connected via at least one groove (10) and/or bore (11) formed in the valve housing (2), valve piston (5) and/or in the armature (6), as well as at least one choke point (12).
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: September 24, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Tony Dumont, Olivier Charvet, Raphael Combe, David Lacroix, Sebastien Binsse, Jean-Roch Julien
  • Patent number: 10403912
    Abstract: An anode discharge valve for a fuel cell system includes a valve main body which is installed in a hydrogen recirculation line of a fuel cell stack; a drive shaft which is rotatably installed in the valve main body, and coupled to an opening member which selectively opens a hydrogen discharge port by being rotated; and a mechanism which is connected to a hydrogen inlet port of the valve main body so as to form a hydrogen inflow path, and operates to rotate the drive shaft as a pressure of hydrogen inflowing through the hydrogen inflow path increases.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: September 3, 2019
    Assignee: Hyundai Motor Company
    Inventors: Bu Kil Kwon, Se Kwon Jung, Hyun Joon Lee, Hyo Sub Shim
  • Patent number: 10330205
    Abstract: A valve assembly includes a housing (22) that has a fluid input (24) and a fluid output (26). A pintle (30) is disposed in the housing, and an actuator (36) is operatively coupled to move the pintle. The pintle includes a passage (32) that fluidly couples the fluid output with a pressure balance volume (34) located between the pintle and the housing adjacent the linear actuator. A controller (38) is electrically connected with the actuator, and there is a variable flow area (40) from the fluid input to the fluid output that is defined between the pintle and the housing.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: June 25, 2019
    Assignee: Aerojet Rocketdyne, Inc.
    Inventors: Mark Michaelsen, Aaron Shook
  • Patent number: 10125891
    Abstract: A valve includes a housing, a solenoid, a pin movable by the solenoid, and a piston connected to the pin. The piston includes an annular base body having a sealing edge. The annular base body has a base embodied as a membrane. The membrane has a bushing in the center thereof and the bushing is connected to the pin.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: November 13, 2018
    Assignee: Continental Automotive GmbH
    Inventor: Rasario Bonanno
  • Patent number: 10119611
    Abstract: A control device for a continuously variable transmission of a vehicle includes: a shift control section being configured to perform a rough road corresponding control to increase the hydraulic pressure supplied to the secondary pulley to a value larger than the hydraulic pressure at a smooth road judgment at which the smooth road is judged, at a rough road judgment at which the rough road is judged, and thereby to increase the clamping force of the secondary pulley with respect to the circular belt member; and a rotation speed control section being configured to control the transmission gear ratio at the rough road judgment so that a rotation speed of the primary pulley becomes equal to or greater than a lower limit rotation speed which is previously set.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: November 6, 2018
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Kiyofumi Sasaki, Youji Itou, Kosuke Abe
  • Patent number: 10041401
    Abstract: A divert-air valve for a compressor of an internal combustion engine includes a flow housing with an inlet, an outlet, and a duct arranged therein, an actuator housing, an electromagnetic actuator with an armature arranged in the actuator housing, a control body which is moved by the electromagnetic actuator so as to close off the duct, a housing interior in which the armature moves, openings arranged in the control body, a connector housing arranged to bear axially against the electromagnetic actuator and to at least partially delimit the housing interior, a first sealing ring arranged on the connector housing, and a second sealing ring which bears against the flow housing on an axially opposite side of the connector housing. The openings fluidically connect the housing interior to the duct. The first sealing ring bears against the electromagnetic actuator.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: August 7, 2018
    Assignee: PIERBURG GMBH
    Inventors: Martin Lenk, Daniel Mandjeralo, Oliver Paul, Helmut Schmitz
  • Patent number: 10041396
    Abstract: A divert-air valve for a compressor of an internal combustion engine includes a flow housing with a duct, an actuator, a control body moved by the actuator to control a throughflow cross section of the duct, an armature, openings in the control body, a valve housing with a housing wall, a support ring with a ring-shaped plate and a cylinder wall, and a sealing ring which seals the housing interior with respect to a part of the duct. The armature is connected to the control body. The openings fluidically connect the housing interior to a part of the duct. The valve housing surrounds the actuator and a part of the control body. The support ring bears, via the cylinder wall, radially from the outside against the housing wall. The radial sealing ring lies axially against the ring-shaped plate and bears radially at the outside against the housing wall.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: August 7, 2018
    Assignee: PIERBURG GMBH
    Inventors: Martin Lenk, Oliver Paul
  • Patent number: 9903499
    Abstract: The proportional valve including a valve body, an air inlet hole and an air outlet hole being provided inside the valve body; a valve core component, the valve core component being movably disposed inside the valve body along a vertical direction; and a first film sheet, an outer side of the first film sheet being connected to the valve body, and an inner side of the film sheet being connected to the valve core component. The proportional valve has a high response speed, high precision, desirable repeatability, desirable consistency, small hysteresis, low fabrication difficulty, and low fabrication cost.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: February 27, 2018
    Assignee: BEIJING AEONMED CO., LTD.
    Inventor: Youfang Shen
  • Patent number: 9765739
    Abstract: A high-pressure fuel pump includes a pump housing, a pressurizing member, a suction valve seat, a suction valve body, and a suction valve chamber. The suction valve seat includes a first projected wall section that is projected to an upper side in a vertical direction. The pump housing includes a second projected wall section that is directed to the upper side in the vertical direction. A height of the lowest position in a portion of the second projected wall section that is projected to the upper side in the vertical direction is higher than a height of the lowest position in a portion of the first projected wall section that is projected to the upper side in the vertical direction. A first initial fuel pool is provided on an downstream side of the second projected wall section and on the upstream side of the suction valve seat.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: September 19, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yoshikazu Kato
  • Patent number: 9651164
    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: Grant
    Filed: April 3, 2014
    Date of Patent: May 16, 2017
    Assignee: DENSO CORPORATION
    Inventor: Masashi Arao
  • Patent number: 9573632
    Abstract: A pneumatic suspension system for a vehicle is provided comprising a mounting arrangement for mounting a portion of the vehicle on a chassis; the mounting arrangement including at least one pneumatic spring to be arranged and coupled between the portion of the vehicle and the vehicle chassis. A vehicle state control system is provided that provides a pressure set value in the pneumatic spring and a pressure controller is arranged to a valve device alternatively for pressurizing or depressurizing the each pneumatic spring. The valve device comprises at least a first valve having a valve outlet coupled to the spring terminal and a valve inlet communicatively coupled to the pressure terminal. A support structure (102) distinct from the sealing edge (104) is provided arranged to providing supporting contact to the sealing face to counteract deformations of the sealing face.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: February 21, 2017
    Assignee: DAF Trucks N.V.
    Inventors: Albertus Clemens Maria Van Der Knaap, Menno Adrianus Beenakkers, Jeroen Vandenhoudt, Christian Groh, Patrik Fuchs, Frank Kattler
  • Patent number: 9494248
    Abstract: An electrically actuated valve includes a first working way and a second working way and a poppet configured for providing a seal on a valve seat set hydraulically between the first working way and the second working way. The poppet includes a first operating position, a second operating position, and a third operating position, and is displaceable by an electrical-actuation device In the first operating position, a passage area for a hydraulic fluid defined between said valve seat and said poppet has a maximum value In the second operating position, the passage area is partialized and has a value lower than said maximum value In the third operating position, the poppet is in contact with the valve seat, and the passage area has a substantially zero value, so that the first working way is isolated from the second working way.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: November 15, 2016
    Assignee: C.R.F. Societá Consortile per Azioni
    Inventors: Sergio Stucchi, Raffaele Ricco, Onofrio De Michele, Marcello Gargano, Domenico Lepore
  • Patent number: 9395013
    Abstract: An electromagnetic proportional 2-way flow control valve (1) has a valve housing (2) in which a control piston (3) is guided to be displaced axially. The control piston (3) actuates at least one fluid-conducting connection (4) between a fluid inlet (5) and an outflow opening (6). An armature (8) can be actuated by a proportional magnet and acts on the control piston (3). A pressure detecting piston (9) serves as the actuator part on the control piston (3). The fluid inlet (5) is connected in a fluid-conducting manner by a pressure detecting channel (11) to a pressure detecting chamber (12) such that the fluid pressure prevailing in the pressure detecting chamber (12) loads the pressure detecting piston (9) and the control piston (3) with a force (F) in the direction of relief of the armature.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: July 19, 2016
    Assignee: HYDAC FLUIDTECHNIK GMBH
    Inventors: Christopher Ward, Peter Malone
  • Patent number: 9371931
    Abstract: The invention relates to a gas control valve for the control of a quantity of gas to be supplied to a gas burner, having a direct pressure regulator which has a valve body that can be moved by an electronically controlled stepper motor.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: June 21, 2016
    Assignee: ebm-papst Landshut GmbH
    Inventors: Enno Vrolijk, Hans-Joachim Klink, Roland Keber
  • Patent number: 9360507
    Abstract: A displacement sensor for sensing displacement of a first surface relative to a second surface includes a coil mounted on the first surface, and encircling a region in plane; and a conductor extending lengthwise from the second surface through the region. The conductor has a volume that varies along its length. An AC source drives the coil to generate a magnetic field that pierces the region and induces eddy currents in the conductor. Eddy current losses resulting from the eddy currents vary in dependence on the volume of the conductor above and beneath the plane. A sensing circuit is coupled to the AC source to detect changes in eddy current losses, and thereby displacement. Detection of displacement may be used to signal tamper/intrusion. The sensor may further include a visual or audible output to signal such displacement.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: June 7, 2016
    Assignee: Tyco Safety Products Canada Ltd.
    Inventors: Andrei Bucsa, Stephen D. W. Fosty
  • Patent number: 9353881
    Abstract: An isolated electrically-controlled valve includes a base and a solenoid device. The base includes a first connection port formed on a side thereof, a second connection port formed on a bottom thereof, a coupling section extending therefrom, and a plurality of passages formed therein to allow the first and second connection ports and the coupling section to communicate with each other. The solenoid device is coupled to the first connection port and includes an isolation airtight seal gasket arranged between the base and the solenoid device. As such, the solenoid device drives the isolation airtight seal gasket to move in order to control the communication established between the second connection port and the coupling section and the isolation airtight seal gasket provides isolation between the base and the solenoid device to prohibit fluid or liquid flowing in the interior of the base from invading into the solenoid device.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: May 31, 2016
    Inventor: Hsu-Hui Chang
  • Patent number: 9285054
    Abstract: A control valve according to an embodiment includes a guide member of a cylindrical shape extending coaxially with a valve hole, a valve element of a bottomed cylindrical shape for opening and closing a valve section such that the valve element touches and leaves the valve hole, and a pressure-canceling structure for canceling out at least part of pressure acting on the valve element by introducing a working fluid into a back pressure chamber via a leak passage, the pressure-canceling structure including the back pressure chamber, surrounded by the valve element and the guide member, and the leak passage communicating between the valve hole and the back pressure chamber. A sliding portion and a spacing are formed in an overlapped portion which is a region overlapped by the valve element and the guide member.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: March 15, 2016
    Assignee: TGK CO., LTD.
    Inventors: Michio Matsumoto, Isao Sendo, Masaaki Tonegawa
  • Patent number: 9022069
    Abstract: A pressure balanced solenoid operated valve includes a solenoid portion having a coil. A valve member portion is connected to the solenoid portion. The valve member portion has a body including: first and second valve seats; a first cavity positioned between the first valve seat and a valve outlet port. A valve member slidably disposed in the body has a resilient valve element positioned between the first and second valve seats, the resilient valve element when in direct contact with the first valve seat defining a valve closed position. A bleed port created in the body between the first valve seat and the valve outlet port and opening into the first cavity provides a flow path for a pressurized fluid present at the second valve seat in the valve closed position to continuously flow out through the valve outlet port.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 5, 2015
    Assignee: MAC Valves, Inc.
    Inventors: Matthew Neff, Eric P. Janssen
  • Patent number: 9010373
    Abstract: A diaphragm sealed, pressure balanced valve assembly includes a valve body and a cartridge connected to the valve body. The cartridge includes a cartridge loading end having a retaining member engaged to the cartridge loading end. A valve member slides coaxial to a longitudinal axis of the valve body. A resilient material first diaphragm is connected to and extends diametrically outward from the valve member having a diaphragm body clasped between the retaining member and the cartridge loading end, creating a first diaphragm fluid pressure boundary. A resilient material second diaphragm is connected to and extends diametrically outward from the valve member at an opposite end of the valve member with respect to the first diaphragm and has a diaphragm body clasped between first and second adjustable retention members, creating a second diaphragm fluid pressure boundary.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: April 21, 2015
    Assignee: MAC Valves, Inc.
    Inventors: Robert H. Neff, Jeffrey Simmonds
  • 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
  • Publication number: 20150102243
    Abstract: A solenoid assembly for providing control over fluid pressure distribution in a transmission, where the solenoid assembly includes a sleeve, a valve portion substantially contained within the sleeve, an armature located within the sleeve, a plunger connected to the armature and in contact with the valve, and a housing located within the sleeve in proximity to the armature. The armature is moveable relative to the sleeve and the housing, and the valve portion includes a valve, where the movement of the valve is controlled by the movement of the armature. The valve is biased towards an open position to provide a fluid pressure balance between multiple ports.
    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
  • Publication number: 20150090912
    Abstract: A pressure control valve includes a housing with a lower part and an upper part. The housing includes a coil wound on a coil carrier, an armature configured to be axially displaceable within a bearing, a core, a flux guiding device, a connection bore, and a connector comprising a valve seat for the armature. The connector and the connection bore are disposed in the lower part of the housing. The upper part of the housing is arranged in a force-locked or a form-fitting manner. A bearing bushing for the armature is provided in a portion of the connector directed towards the core. A stop bushing for the armature is provided in an opposite portion of the connector.
    Type: Application
    Filed: December 9, 2014
    Publication date: April 2, 2015
    Inventors: WERNER BUSE, FRANZ-JOSEF SCHNELKER, ROLF DOHRMANN
  • Patent number: 8991428
    Abstract: In a preferred embodiment, the present solenoid control valve is provided which has a valve sleeve having upper and lower feedback chambers which are connected to control pressure by an exterior surface longitudinal slot or slots.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: March 31, 2015
    Assignee: BorgWarner Inc.
    Inventors: Garrett R. Holmes, Michael E. Jones, Jeffrey J. Waterstredt
  • Publication number: 20150069278
    Abstract: A valve (210) comprising a motor (221) having an output shaft (231) orientated about a motor axis (230), a hydraulic valve having a drive spool (224) configured to move from a first position to a second position, a mechanical linkage (222) between the output shaft (231) and the drive spool (224) having a sleeve (232) mechanically coupled to the output shaft (231), a pole shaft (233) configured for sliding engagement in a direction generally perpendicular to the motor axis, a link (235) connected to the pole shaft (233) by a pivot joint (234), a drive shaft (252) coupled to the link (235) and rotatable about a drive axis, the drive shaft (252) having an end portion to engage and apply a force to the spool (224), and a spring (223) to provide a bias between the pole shaft (233) and the sleeve (232), such that a distance between the motor axis and the pivot joint multiplied by a distance between the drive axis and the applied force is less than a distance between the drive axis and the pivot joint.
    Type: Application
    Filed: February 9, 2012
    Publication date: March 12, 2015
    Applicant: Moog Inc.
    Inventor: John Kopp
  • Publication number: 20150053287
    Abstract: The invention relates to a gas regulating unit of modular construction, in particular for regulating the amount of gas to be supplied to a gas burner, and to a gas regulating valve which, as a whole, is in the form of a module and which can be used in an aforementioned gas regulating unit of modular construction.
    Type: Application
    Filed: February 27, 2013
    Publication date: February 26, 2015
    Inventors: Roland Keber, Hans-Joachim Klink, Enno Vrolijk
  • Patent number: 8960221
    Abstract: An electromagnetic pressure regulating valve includes a valve body and causes a valve body to move by an electromagnetic proportional solenoid to adjust an opening degree of a valve passage, thereby regulating secondary pressure to target pressure. A pressure return chamber is formed in the housing, and a diaphragm seal is provided at the valve body. The diaphragm seal receives the secondary pressure of the pressure return chamber to cause the valve body to move toward a closed position. A bearing member is provided between the valve body and the housing. In a gap between the valve body and the housing, a high-pressure sealing member is provided closer to the valve passage than the bearing member, and a low-pressure sealing member is provided closer to the bearing member than the high-pressure sealing member. A buffer chamber connected to a secondary port is formed between the sealing members.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: February 24, 2015
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Kaoru Nomichi, Yutaka Suzuki, Makoto Ninomiya, Shoji Murakami
  • 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: 20150041692
    Abstract: The invention relates to a pressure regulating valve for regulating pressure in a high-pressure fuel accumulator for an internal combustion engine, comprising a valve piston (5) accommodated axially displaceably in a bore (1) in a valve housing (2), acting on a valve closing member (3) in the direction of a valve seat (4), said valve piston being connected at the end thereof facing away from the valve seat (4) to an armature (6) of a magnetic assembly (7) for actuating the pressure regulating valve, wherein the armature (6) is accommodated in an armature chamber (8) and the valve closing member (3) is accommodated in a valve chamber (9). According to the invention, the valve chamber (9) and the armature chamber (8) are hydraulically connected via at least one groove (10) and/or bore (11) formed in the valve housing (2), valve piston (5) and/or in the armature (6), as well as at least one choke point (12).
    Type: Application
    Filed: February 13, 2013
    Publication date: February 12, 2015
    Applicant: Robert Bosch GmbH
    Inventors: Tony Dumont, Olivier Charvet, Raphael Combe, David Lacroix, Sebastien Binsse, Jean-Roch Julien
  • Publication number: 20150034187
    Abstract: A solenoid actuated valve assembly includes a valve body (122) comprising a fluid inlet (132) and fluid outlet (134), a valve member (128) disposed within the valve body, wherein a position of the valve member controls a fluid flow between the fluid inlet and fluid outlet, and a fluid chamber (140) above the valve member, wherein the fluid chamber is fluidly isolated from the fluid inlet and outlet. The solenoid actuated valve assembly further includes a solenoid actuator coupled to the valve body comprising a solenoid plunger (102) proximate the fluid chamber, wherein a force multiplying ratio of a surface area of the valve member exposed to the fluid chamber to a surface area of the solenoid plunger exposed to the fluid chamber is at least 1.5:1.
    Type: Application
    Filed: January 23, 2012
    Publication date: February 5, 2015
    Applicant: FMC TECHNOLOGIES, INC.
    Inventors: Paul A. Crawford, William H. Garner
  • 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: 20150001319
    Abstract: A solenoid valve for metering a fluid into an intake tract (1) of an engine, said solenoid valve comprising a solenoid assembly (2), an armature (3) interacting with the solenoid assembly (2) and a stroke-movable valve disc (4) connected to the armature (3) for opening and closing at least one through-flow aperture (6) formed in a valve plate (5).
    Type: Application
    Filed: June 30, 2014
    Publication date: January 1, 2015
    Inventors: Juergen Foerster, Kai Kroeger, Okke Venekamp, Stephan Dirnberger
  • 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: 20140326909
    Abstract: Embodiments of the present disclosure are directed to pressure balanced solenoid control valve for high flow and/or high pressure control applications. An all-sealed integrally formed element functions as both the bellows and spring and is used as a replacement for the combination of both the individual bellows and spring found in existing pressure balanced control valves. The single bellows spring provides a spring force on the movable valve plug and separates opposite sides of the valve plug, wherein a gas passageway is provided between opposite sides of the valve plug so that gas provided at the inlet will flow to opposite sides of the valve plug so as to cancel any pressure forces provided on opposite sides of the valve plug by the pressure of the inlet gas.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 6, 2014
    Applicant: MKS INSTRUMENTS, INC.
    Inventors: Junhua Ding, Zongren Shang, Zhifeng Liu
  • 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: 8833728
    Abstract: Disclosed is a solenoid valve for a brake system which improves an assembly structure of components configuring the valve to enhance durability and control performance of the valve. The solenoid valve for a brake system includes a seat housing installed at a bore of a modulator block and provided with a through hole formed therethrough, a valve seat installed at the through hole of the seat housing and provided with an orifice, a sleeve provided with a hollow and connected to the seat housing, a magnetic core, an armature installed at the sleeve, and a return spring installed in the sleeve, wherein the armature includes an upper armature formed of a magnetic material, and a lower armature formed of a non-magnetic material, wherein the through hole of the seat housing is provided with a guide region having a diameter corresponding to an outer diameter of the lower armature.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: September 16, 2014
    Assignee: Mando Corporation
    Inventors: Hyun Jun Kim, I Jin Yang, Yong Kap Kim, Dong Yo Ryu, Jong Young Park
  • Patent number: 8833731
    Abstract: A solenoid valve includes at least one armature that is axially displaceable in a valve housing and a valve element that is operatively connected to the armature. The valve element can be arranged by means of the armature to open up or close off at least one valve seat of the solenoid valve. A non-return valve is provided between a first fluid connection and a second fluid connection of the solenoid valve. In so doing, the non-return valve is arranged at least in regions in the armature.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: September 16, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Norbert Alaze
  • Publication number: 20140225016
    Abstract: Example pilot-control stage for a proportionally controlled high-pressure hydraulic valves are disclosed.
    Type: Application
    Filed: April 18, 2014
    Publication date: August 14, 2014
    Applicant: Dynamics Systems S.A.
    Inventor: Hans Schwelm
  • Publication number: 20140217317
    Abstract: An electromagnetic valve includes a driving portion, a valve body, and a valve element. The driving portion generates a magnetic attractive force according to an energization. The valve body has an orifice through which a fluid flows, and a valve seat around an opening portion of the orifice. The valve element displaces according to the magnetic attractive force and a fluid force that is applied from the fluid, to vary a passage area between the valve element and the valve seat. When the valve element is placed at a position separated farthest from the valve seat, the passage area between the valve element and the valve seat is less than or equal to a passage area of the orifice.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 7, 2014
    Applicant: DENSO CORPORATION
    Inventors: Katsuhiro ICHIHASHI, Fumiaki ARIKAWA, Naoki MITSUMATA, Masahiro WATANABE
  • Patent number: 8746276
    Abstract: A proportional throttle valve includes a valve piston (2) displaceably guided in the longitudinal direction in a valve housing (3) having a fluid inlet (4) and a fluid outlet (5) and pretensioned by an energy accumulator, in particular in the form a pressure spring, against a stroke stop (6) defining the closure position. A pressure limiting valve (7) is integrated in the proportional throttle valve (1). The side (8) of the valve piston (2) to allow the piston to move away from the stroke stop (6) in opposition to the pretensioning force when a predefinable pressure is exceeded at the fluid inlet (4).
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: June 10, 2014
    Assignee: Hydac Fluidtechnik GmbH
    Inventors: Markus Bill, Peter Bruck
  • Patent number: 8740178
    Abstract: A solenoid valve for controlling a fluid includes an armature having a base region, a lateral region and a head region. The solenoid valve includes a valve member connected to the armature. The solenoid valve further includes an armature casing component in which the armature is positioned. A flow path is formed between the armature and the armature casing component, the flow path extending from a lower armature space to an upper armature space and back to the lower armature space. A junction region is arranged between the head region and the lateral region. The junction region has at least one groove formed therein to facilitate an overflow between the lateral region and the head region.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: June 3, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Karl, Massimiliano Ambrosi, Nicolas Houis, Jens Norberg, Stephan Steingass, Elmar Vier, Andreas Lechler, Gerhard Stokmaier
  • Patent number: 8672291
    Abstract: An actuator control system including a servo-actuator comprising: at least one coil; a solenoid core within the at least one coil; a rod within the solenoid core having a first end, a second end, and a length extending between the first end and the second end, the first end coupled to a sensing core pin having a profile; a moveable member coupled to the second end of the rod; a moveable armature within the solenoid core surrounding a portion of the length of the rod and biased by a spring; and a noncontact sensor integral with servo-actuator and aligned with the first end of the rod coupled to the sensing core pin. A selected position of the servo-valve actuator may be set by the ECU by sensing the position of the sensing core pin using the non-contact sensor.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: March 18, 2014
    Assignee: G.W. Lisk Company, Inc.
    Inventor: Jeff Tyler
  • Patent number: 8662312
    Abstract: A piezoelectric valve comprising: a valve main body formed in which are a gas pressure chamber that takes in compressed gas supplied from the outside as well as a gas release channel through which the compressed gas is released from the gas pressure chamber; a valve body placed in the gas pressure chamber to open and close the gas release channel; a piezoelectric element that generates, in the form of displacement, a driving force needed to operate the valve body; at least one displacement amplification mechanism that amplifies a displacement of the piezoelectric element and causes it to act upon the valve body; and a driving means for applying voltage to the piezoelectric element in order to drive the valve body to open the valve and thereby open the gas release channel; wherein such piezoelectric valve is characterized in that the driving means applies voltage to the piezoelectric element in multiple stages so as to suppress fluctuation in the amount of gas ejected from the gas release channel when the valv
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: March 4, 2014
    Assignees: Satake Corporation, Mechano Transformer Corporation
    Inventors: Takafumi Ito, Teruhiko Takeuchi, Takeshi Yano, Sze Keat Chee, Toshiro Higuchi
  • Patent number: 8613420
    Abstract: A solenoid valve for controlling a hydraulic system having a coil which is composed of an electrical conductor, an armature which is situated at least partially inside the coil and is connected to a valve element for opening and closing a flow opening of the solenoid valve, and a hydraulic fluid-filled valve chamber that accommodates the armature and communicates fluidically with the hydraulic system. The armature is supported in movable fashion in the hydraulic fluid of the hydraulic system. In order to reduce the viscosity of the hydraulic fluid, the coil is situated so that a heating of the coil produced by a current flow produces a heating of the hydraulic fluid in the valve chamber.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: December 24, 2013
    Assignee: Magna Powertrain AG & Co. KG
    Inventor: Thomas Linortner
  • Publication number: 20130319379
    Abstract: A valve with a pilot control is provided for a fuel vapor retention system. The valve has a main valve (10) with a valve body (12) for opening and closing a fluid passage, a pilot control valve (20), which is arranged at the valve body (12) for opening and closing a channel (14) arranged in the valve body (12) and has an elastically deformable diaphragm (22), and a plunger (30) for pressing the diaphragm (22) against a mouth of the channel (14) to close the channel (14) thereby and displacing the valve body (12) in the closing direction against a valve seat (11).
    Type: Application
    Filed: June 3, 2013
    Publication date: December 5, 2013
    Applicant: A. Kayser Automotive Systems GmbH
    Inventors: Stefan Hettinger, Torsten Gerlich