Including Solenoid Patents (Class 251/129.15)
  • Patent number: 12158240
    Abstract: The invention relates to a method for opening a valve assembly for a fuel tank, comprising a pilot valve (V1) and at least one additional valve (V2), in particular for use in a fuel cell-operated vehicle, having the steps of applying (30) an amplification voltage (S1) in order to open the pilot valve (V1) in an opening phase (P1) of the pilot valve (V1), deactivating (32) the amplification voltage (S1) in order to terminate the opening phase (P1) of the pilot valve (V1), applying (34) a pull-in voltage (S2) in a pull-in phase (P2) of the pilot valve (V1) in order to hold the pilot valve (V1) open, and activating and deactivating (36) the pull-in voltage (S2) in an alternating manner in order to hold the pilot valve (V1) open and in order to open the at least one other valve (V2) and hold same open in a readjustment phase (P3) such that the hold-open energy required on average for holding the pilot valve (V1) open and the opening energy and/or hold-open energy required on average for the at least one other val
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: December 3, 2024
    Assignee: Robert Bosch GmbH
    Inventor: Helerson Kemmer
  • Patent number: 12129933
    Abstract: A gas shutoff valve is provided. The gas shutoff valve includes a valve seat, a valve rod, an elastic sealing mechanism, a plastic base, and a sealing cover plate. The valve rod extends through the plastic base and into the valve seat, and is connected to the elastic sealing mechanism. The sealing cover plate is mounted on the valve seat, and the elastic sealing mechanism is disposed between the valve seat and the sealing cover plate. And one end of the elastic sealing mechanism away from the valve seat abuts against the sealing cover plate.
    Type: Grant
    Filed: February 18, 2023
    Date of Patent: October 29, 2024
    Assignee: NINGBO KINGDUN ELECTRONIC INDUSTRY CO., LTD.
    Inventor: Xueyong Liu
  • Patent number: 12068106
    Abstract: In a solenoid valve, a length in an axial direction from a stator core end surface to a bottom portion of a yoke is equal to or longer than a total length in the axial direction of a shaft and a plunger. When the shaft and the plunger move to the bottom portion side, the stator core end surface and the spool end surface come into contact with each other so as to restrict a movement of a spool. A groove portion, which communicates a space formed by the stator core, the spool, and the shaft with an accommodating portion when the stator core end surface and the spool end surface come into contact with each other, is formed on at least one of the stator core end surface and the spool end surface, and a communication hole communicates an inside and an outside of the accommodating portion.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: August 20, 2024
    Assignee: DENSO CORPORATION
    Inventor: Akira Sakai
  • Patent number: 11998934
    Abstract: A drive circuit for a solenoid valve having a coil and a poppet configured to translate within the coil includes a drive switch operable to de-energize the coil to translate the poppet toward a closed position, a sensor configured to detect the poppet translating within the solenoid valve, and a drive circuit configured to energize and de-energize the coil of the solenoid valve to translate the poppet of the solenoid valve between an open position and a closed position. The drive circuit includes a controller configured to receive a closure signal from the sensor, determine a closing time of the solenoid valve based on the closure signal, determine a time delay between de-energizing the coil and the determined closing time, and determine a fluid flow value of fluid flowing through the solenoid valve based on the determined time delay.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: June 4, 2024
    Assignee: Capstan Ag Systems, Inc.
    Inventor: Duane Needham
  • Patent number: 11994231
    Abstract: A proportional solenoid valve includes a valve body defining an inlet and an outlet for a fluid flow through the valve body and an armature that is moveable along a longitudinal axis from a first closed position to a second open position to control the flow of fluid through the valve. The valve further includes a flux can and an encapsulated coil assembly encompassed within the flux can. The encapsulated coil assembly includes a bobbin, a wire coil wound around the bobbin, and a non-conductive encapsulation layer that encapsulates the bobbin and the wire coil so as to electrically isolate the wire coil from the flux can and other conductive components of the valve. When the solenoid coil is energized, a magnetic field is created which causes the armature to move away from the first position against the valve body toward the second position, thereby opening the valve.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: May 28, 2024
    Assignee: Parker-Hannifin Corporation
    Inventors: Aaron Hepler, Joel Verrecchia, Jim Burns, Phil Dodge
  • Patent number: 11852249
    Abstract: An inlet section for use in a hydraulic distributor including a valve body and a slider with a first area and a second area. The inlet section further including said slider being longitudinally slidable within the valve body between a first position in which it prevents passage of fluid from a high pressure line to a low pressure line, and a second position in which it enables passage of fluid. The inlet section further including a main spring active on the second area of the slider in a direction consistent with action of the second pressure and a control device of the slider. The control device of the slider includes a mechanical actuator member selectively active on the slider in a direction consistent with the action of the first pressure on the first area of the slider so as to force the slider in the second position.
    Type: Grant
    Filed: October 7, 2022
    Date of Patent: December 26, 2023
    Assignee: BUCHER HYDRAULICS S.p.A
    Inventor: Massimo Riva
  • Patent number: 11848154
    Abstract: Electromagnetic actuators for an elevator systems and encapsulated components thereof are described. The encapsulated components include an encapsulating body and a component assembly is arranged within the encapsulating body, wherein at least some parts of the component assembly are contained within a material of the encapsulating body.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: December 19, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Justin Billard, Brad Guilani, Daryl J. Marvin, Antonio Martins, Richard Marchetti
  • Patent number: 11835145
    Abstract: An electric valve, including a valve body part, a valve seat part, and a valve core part. The valve core part is provided in an inner cavity of the valve body part. The valve core part comprises a valve core. The valve core comprises a lower segment portion. The valve base part comprises a first sealing portion. An end of the lower segment portion can be abutted against or separated from the first sealing portion. The valve body part comprises a bushing part. The valve core part comprises a second sealing portion. The diameter D1 of the axial projection loop of the outer edge of the second sealing portion on the cross section of the lower segment portion, the outer diameter D2 of the lower segment portion, and the inner diameter D3 of the lower segment portion, satisfy: 0.2 mm2?D1*(D2?D3)?6 mm2.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: December 5, 2023
    Assignee: ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS CO., LTD.
    Inventors: Ming Lv, Baijiang Qian
  • Patent number: 11828381
    Abstract: A switching valve and a valve arrangement for regulating a mass flow in a refrigeration or heating circuit, having a path-generating device which comprises a U-shaped yoke with an upper and lower leg which are aligned with one another and a coil which is positioned within the yoke and can be electrically controlled, a core fixedly positioned relative to the coil and having at least a portion projecting relative to the coil and positioned in an opening in the leg of the yoke, and a tappet provided in the coil and movable relative to the core and having an end extending through an opening in one of the legs of the yoke, with a closing body or valve closing member arranged on the tappet, and with a restoring element which is arranged between the core and the tappet, a switching bushing being provided which is insertable into the path-generating device, and which is closed on one side by a base and is open on the opposite end of the base and fastening section is assigned to the open end of the switching bushing h
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: November 28, 2023
    Assignee: OTTO EGELHOF GmbH & Co. KG
    Inventors: Eike Willers, Andreas Auweder, Markus Lang-Belz
  • Patent number: 11813922
    Abstract: An expansion valve for an air conditioning system of a motor vehicle may include a housing, a sensor, a stepping motor or a BLDC motor, a valve seat, and a valve body. The stepping motor or the BLDC motor may include a rotor and a stator surrounding the rotor. The rotor may include a permanent magnet body connected non-rotatably therewith. A separating can may be provided that surrounds the rotor and separates a wet region on a rotor side from a dry region on a stator side. The sensor may be connected with the separating can via an adhesive layer formed as a heat-conductive layer.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: November 14, 2023
    Inventors: Steffen Huebner, Matthias Lindenberg, Jeffrey Van Delden, Florian Wetzel
  • Patent number: 11808374
    Abstract: A fluid management system includes a housing having a central manifold in fluid communication with a source of pressurized fluid, a plurality of first ports in communication with the central manifold, a plurality of second ports in communication with the environment surrounding the housing, and a plurality of third ports each configured to be coupled to a vessel for containing the pressurized fluid. The fluid management system also includes a plurality of valves and a plurality of actuators, each actuator including a smart material and associated with one of the plurality of valves. In response to activation by an energy source, each actuator is configured to move the associated valve to one of a first position or a second position.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: November 7, 2023
    Assignee: Leggett & Platt Canada Co.
    Inventors: Stefano Nicola, Maxime Samain, Daniel Schmitz, Renato Colja, Robert J. McMillen
  • Patent number: 11749819
    Abstract: The present disclosure relates to a fuel cell system including: an air supply line configured to supply air to a fuel cell stack; a discharge line connected to the fuel cell stack and configured to guide exhaust gas discharged from the fuel cell stack; a discharge adapter connected to the discharge line and configured to discharge the exhaust gas to the outside; and a bypass line having one end connected to the air supply line and the other end connected to the discharge adapter, the bypass line being configured to selectively allow the air to flow from the air supply line to the discharge adapter, thereby effectively reducing a hydrogen concentration in exhaust gas discharged from the fuel cell stack.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: September 5, 2023
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Myeong Nam Woo
  • Patent number: 11603946
    Abstract: To provide an electromagnetic valve capable of preventing damage due to stress of a buffer member. An electromagnetic valve includes a solenoid having a case, a flow path member, and a columnar valve element that is housed in the valve element housing portion of the flow path member and moves with a plunger of the solenoid to open and close a flow path. A seat member with which the plunger comes into contact is disposed in the case of the solenoid. The seat member includes a core portion with which the plunger comes into contact, and a plurality of protruding portions protruding radially outward from an outer peripheral surface on the radially outer side of the core portion.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: March 14, 2023
    Assignee: NIDEC TOSOK CORPORATION
    Inventors: Tomohiko Nakanishi, Hiroki Shimizu
  • Patent number: 11542901
    Abstract: A fuel injection valve includes a valve body, a fixed core, a movable core, a spring and a cup. The movable core has a first core contact surface which contacts the valve body when the movable core is moved by a predetermined distance away from a nozzle hole, and a second core contact surface which contacts the cup when the movable core is moved away from the nozzle hole. The movable core, the cup and the valve body form a fuel storage chamber which is surrounded by the movable core, the cup and the valve body to accumulate fuel. The first core contact surface is located inside the fuel storage chamber. The first core contact surface and the second core contact surface have a communication groove through which the inside and the outside of the fuel storage chamber communicate with each other.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: January 3, 2023
    Assignee: DENSO CORPORATION
    Inventors: Kouichi Mochizuki, Atsuya Okamoto, Shinsuke Yamamoto, Yuki Watanabe
  • Patent number: 11542965
    Abstract: A method for operating a hydraulic valve of a hydraulic device of a motor vehicle transmission device, wherein an actuating current of the hydraulic valve is superposed with a modulation alternating current in order to adjust a shaking vibration of the hydraulic valve by a control device, wherein a deviation between an actual pressure resulting from the actuating current and a setpoint pressure determined as a function of the actuating current is determined for the hydraulic device by means of an electronic computing device, and an amplitude and/or a frequency of the modulation alternating current is increased as compared to a starting value equalizing a hysteresis of the actual pressure relative to the setpoint pressure, as a function of a tolerance range being exceeded by the determined deviation.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: January 3, 2023
    Assignee: AUDI AG
    Inventor: Andreas Birk
  • Patent number: 11521773
    Abstract: A pneumatic solenoid valve includes a fluid connector, a magnet coil which extends along a coil axis, a yoke arranged on the magnet coil, and an armature movable relative to the yoke and which extends along an armature axis and which is formed for opening and closing the fluid connector. The armature can assume three different switching positions. In the first switching position, the armature and coil axes are arranged parallel to one another and the armature completely closes off the fluid connector. In the second switching position, the armature is rotated about an axis of rotation, such that the armature axis and the coil axis assume an angle with respect to one another and the armature partially opens the fluid connector. In the third switching position, the armature is in a state axially displaced in relation to the first switching position, such that the fluid connector is completely open.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: December 6, 2022
    Inventors: Norbert Seltner, Stefan Buschmann, Stefan Bauer
  • Patent number: 11408532
    Abstract: An electromagnetic switching valve includes: a sleeve, defining a port communicating with an oil passage; a spool, reciprocally movably disposed on an axis in the sleeve, opening and closing the port; an electromagnetic actuator, including a plunger disposed on the axis and a stator; a transmission member interposed between the plunger and the spool; and an energizing spring, energizing the spool toward the plunger. The transmission member includes a first abutting part of a convex shape tiltably abutting against a receiving recess of the plunger; a second abutting part of a concave shape abutting against a convex end of the spool; and an outer peripheral wall that, in a state of being deviated from the axis and inclined, regulates the inclination by contacting an inner peripheral surface of the sleeve or the stator.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: August 9, 2022
    Assignee: MIKUNI CORPORATION
    Inventors: Toshiki Ogasawara, Masashi Ueda
  • Patent number: 11352971
    Abstract: A method is provided for controlling a solenoid actuated fuel injector having a solenoid actuator which moves a pintle and needle arrangement such that the needle moves away from a valve seat to an open position and also includes circuitry which applies chopped hysteresis control subsequent to an energisation phase. The method includes a) obtaining a signal of the current or voltage across the solenoid; b) analyzing the voltage or current to detect a chopped hysteresis pulse; c) determining the time point of the end of said chopped hysteresis pulse; and d) applying a braking pulse to the solenoid, the timing of which is dependent on the results of step c).
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: June 7, 2022
    Assignee: DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG S.A.
    Inventors: Peter Baur, Volker Heise
  • Patent number: 11335520
    Abstract: A rupture resistant relay. The relay has an outer housing with contacts extending through the outer housing. An outer core is positioned in the outer housing. A cover member is provided on the outer core. The cover member and the outer core encapsulate an interior chamber. A support member extends over the cover member. The support member is integrally attached to the outer core. The cover member prevents components the cover member and components of the interior chamber from projecting out of the envelope of the outer housing when an explosion occurs in the interior chamber.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: May 17, 2022
    Inventors: Albert Yong Lee, Roger Lee Thrush
  • Patent number: 11320060
    Abstract: Provided are an electric valve and a thermal management assembly. The electric valve includes a valve body, the valve body includes a first portion and a second portion, and the valve body is fixedly connected to a cover body through the first portion. The second portion includes a third wall. The first portion includes a first side wall and a second side wall, the first side wall and the second side wall are disposed opposite to each other, the first side wall and the second side wall are located on two sides of the valve body, and the third wall and the first side wall are located on a same side of the valve body.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: May 3, 2022
    Inventors: Quanfeng Huang, Dazhao Zha, Rongrong Zhang, Yingchong Lu, Wei Zhang
  • Patent number: 11318403
    Abstract: An automatic drain device is configured for use with a fuel water separator filter system. The automatic drain device includes a solenoid, a water-in-fuel sensor, and a controller configured to operate the automatic drain device by activating the solenoid in response to a signal from the water-in-fuel sensor. The automatic drain device may be utilized with suction side and pressure side fuel water separator filter systems. The automatic drain device operates independently of any user input.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: May 3, 2022
    Assignee: CUMMINS FILTRATION IP, INC.
    Inventors: Amit Shashikant Wankhede, Peter K. Herman, Arun P. Janakiraman, Christopher E. Holm, Prashant Wani, Abhijit Shimpi
  • Patent number: 11315715
    Abstract: An electromagnetic actuator including an armature movable along a longitudinal axis in an armature chamber, a coil running around the longitudinal axis for producing a magnetic field for moving the armature, a control element motionally coupled to the armature, in particular for operating a valve element of a pressure-regulating valve, a pole disk for conducting a magnetic flux, and a cover bounding the armature chamber, the cover and the pole disk together forming a component in one piece.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: April 26, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Alexander Klenk, Klaus Schudt
  • Patent number: 11313587
    Abstract: A gas flow controller for use with a gas powered water heater includes a first gas flow valve, and a first gas flow valve actuator assembly connected to the first gas flow valve and configured to hold the first gas flow valve in an open position. The first gas flow valve actuator assembly includes a first electromagnetic actuator, a corrosion resistant material encapsulating the first electromagnetic actuator, a first wire lead connected to the first electromagnetic actuator at a first solder joint, a corrosion resistant material encapsulating the first solder joint, a second wire lead connected to the first electromagnetic actuator at a second solder joint, and a corrosion resistant material encapsulating the second solder joint.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: April 26, 2022
    Assignee: Emerson Electric Co.
    Inventors: Saad A. Chaudry, Donald L. Blessing, Juan G. Renteria
  • Patent number: 11289257
    Abstract: A solenoid device includes a yoke, a core, a shaft, a bobbin, a coil, a plunger, a lid, and a housing. A housing body part of the housing has a first opening; a first inner wall part expanding toward the outer side in the radial direction on an inner wall; and a first caulking part extending from the rear side end. The first inner wall part has a first step part extending toward the outer side in the radial direction at an end on the other side in the axial direction. A first cylindrical part of the yoke has a first flange part. The first flange part contacts the first step part with an end surface on the other side in the axial direction. The first caulking part is bent toward the inner side in the radial direction to contact a circumferential edge part of the lid.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: March 29, 2022
    Assignee: NIDEC TOSOK CORPORATION
    Inventors: Kenta Kuramochi, Weiming Chen, Tomohiro Yasuda
  • Patent number: 11268626
    Abstract: The invention relates to a proportional valve (100) for controlling a gaseous medium, in particular hydrogen, comprising a movable closure element (301) and a first spring (302) arranged on the closure element (301), the first spring (302) being configured in order to exert a first spring force on the closure element (301) in a closing direction, and an actuator (200), the actuator (200) being configured in order to provide an adjustable force in the opposite direction to the first spring force, the closure element (301) being configured in order to close and to open a through opening (102) by the movement, the proportional valve (100) comprising a closure element (305) which is arranged at an end of the closure element (301) remote from the first spring (302), and a second spring (304), the second spring (304) being arranged on the closure element (305) and the second spring (304) being configured in order to exert a second spring force on the closure element (305), the second spring force counteracting the
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: March 8, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Gruenberger, Hans-Christoph Magel
  • Patent number: 11258361
    Abstract: The voltage detection apparatus includes a reference power supply that outputs a predetermined voltage; a voltage conversion unit that converts detected information into a voltage; and a switching unit that switches between a first state in which the predetermined voltage is supplied from the reference power supply to the primary side of a transmission unit, and a second state in which the voltage resulting from the conversion is supplied from the voltage conversion unit to the primary side of the transmission unit. The switching unit switches to the first state, in which a correction value for correcting a digital value is acquired. The switching unit switches to the second state, in which a voltage value acquired based on the digital value is corrected with the correction value to acquire a corrected voltage value.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: February 22, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Keizo Kojima
  • Patent number: 11255457
    Abstract: In at least some implementations, a solenoid valve includes a housing, a bobbin and an armature. The bobbin is received at least partially within the housing and has a body about which a coil is provided. A fluid flow path including an inlet and an outlet and a valve seat is defined by at least one of the housing or the bobbin, and the armature is moveable relative to the valve seat to control flow through the fluid flow path.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: February 22, 2022
    Assignee: Walbro LLC
    Inventors: Dale P. Kus, David L. Thomas
  • Patent number: 11255400
    Abstract: A damping force adjustable shock absorber includes an electromagnetic damping force adjustment device (17) having a damping force adjustment valve (18), and a solenoid (33) configured to variably adjust the damping force. The solenoid includes a coil (39) configured to generate a magnetic force by power supply, a movable iron core (43) located on an inner peripheral side of the coil, an anchor member (40) configured to attract the movable iron core. The movable iron core includes a thick cylindrical portion (43A) and a taper cylindrical portion (43B). The thick cylindrical portion includes a fixation hole (43A1) in which a shaft portion (44) is fixed. The taper cylindrical portion has an inner peripheral surface flaring so as to define a taper shape. A recessed portion (43A2) is formed around the fixation hole. The recessed portion allows hydraulic fluid to flow in an axial direction of the movable iron core.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: February 22, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Shunsuke Mori, Hiroshi Murakami
  • Patent number: 11248708
    Abstract: A high purity control valve for use in high conductance, proportional control applications includes a moveable control plate having a flow-through passage to enhance fluid sweep of the internal valve volume. Nested orifice ridges are used to achieve high conductance with small actuator movement. Enhanced leak tightness can be provided by incorporating into the control plate materials softer than the material comprising the orifice ridge. The control plate comprises a control plate body having a counterbore in fluid communication with a conduit, radial fluid flow paths and axial fluid flow paths. A flat side of the control plate includes a continuous uninterrupted flat portion to shut-off fluid flow in the valve. The radial fluid flow paths provide fluid communication from the counterbore to a circumferential perimeter of the control plate and the axial fluid flow paths provide fluid communication with the fluid conduit through an intermediate valve chamber portion.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: February 15, 2022
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventor: Kim Ngoc Vu
  • Patent number: 11242831
    Abstract: A fuel injection valve includes a valve body, a fixed core, a movable core, a spring, a cup, and a guide. The cup contacts the spring and the valve body to transmit a valve closing elastic force to the valve body, and includes a cylindrical portion having a cylindrical shape. The guide has a sliding surface on which an outer peripheral surface of the cylindrical portion slides so as to guide the movement of the cylindrical portion in an axial direction while restricting the movement of the cylindrical portion in a radial direction. The guide has a recessed surface connected to the sliding surface and recessed to increase a gap between the recessed surface and the cup in the radial direction.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: February 8, 2022
    Assignee: DENSO CORPORATION
    Inventors: Shinsuke Yamamoto, Kouichi Mochizuki, Atsuya Okamoto
  • Patent number: 11174821
    Abstract: Methods and systems are provided for a conical guard for an evaporative emissions control (EVAP) system. In one example, the conical guard is arranged at an end of a vent line of the EVAP system, adapted with openings sufficiently small to hinder entry of foreign bodies into the vent line. The conical guard is further configured to trap and expel debris and maintain a desired rate of flow through the EVAP system.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: November 16, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Luis Felipe Blas Martinez, Miguel Angel Leon Guerrero, Enrique Lopez Hernandez, Dhaval Vaishnav
  • Patent number: 11173886
    Abstract: A hydraulic control device includes: a plurality of coil assembles each including a coil bobbin, and a yoke which has a cylindrical shape, and which receives the coil bobbin; a case including a bottom wall, and receiving the coil assemblies arranged on one side of the bottom wall; a wall portion protruding from an end surface of the coil bobbin in an axial direction of the coil bobbin, within a projection surface obtained by projecting an outer shape of the yoke in the axial direction of the coil bobbin; a first engagement portion provided to the wall portion; and a second engagement portion provided to the case, and arranged to be engaged with the first engagement portion.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: November 16, 2021
    Assignee: HITACHI ASTEMO, LTD.
    Inventor: Susumu Kaneko
  • Patent number: 11156296
    Abstract: An electric valve includes a valve body, a spool assembly, and a coil assembly. The spool assembly includes a piston, a valve seat, a valve needle, and a rotor. The valve seat is provided with a first valve port. The valve body is provided with a first port, a second port, a second valve port, and a bypass channel. One end of the first valve port keeps communication with the first port, and another end of the first valve port is in communication with the second port by means of the bypass channel. A second valve port is arranged in a bottom wall of the cavity having an open end, at least part of an outer wall of the valve seat is in sealing engagement with an inner wall of the cavity having an open end. A third valve port is arranged between the second valve port and the second port. A check valve is directly disposed between the third valve port and the second port.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: October 26, 2021
    Assignee: Zhejiang Sanhua Automotive Components Co., Ltd.
    Inventors: Xibo Liu, Shizhao Yang, Wenrong Zhou
  • Patent number: 11128088
    Abstract: A terminal can be slidably held while liquid-tightness and airtightness are steadily maintained. Included are a base part where a rear through-hole is formed; a terminal storage case which includes a front plate part where a front through-hole is formed, and in which a rear end is connected to the base part; a terminal that includes an axis part, a contact part, and a flange, the rear end proximity part of the axis part being slidably inserted into the rear though-hole, and the contact part being slidably inserted into the front through-hole; an energizing member that is mounted on the circumference of the axis part and energizes the flange to a front; and a cylindrical sealing member that includes a first sealing member interposed between the tip end of the energizing member and the flange, a second sealing member interposed between the rear end of the energizing member and the base part, and a central cylinder for connecting the first sealing member with the second sealing member.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: September 21, 2021
    Assignee: Molex, LLC
    Inventors: Makoto Shinyama, Takaaki Hirayama, Yuya Sato
  • Patent number: 11118636
    Abstract: A transmission system includes a clutch control valve assembly having an armature for adjusting a valve, rested upon metallic slide bearings under the force of gravity. The armature includes a core material that is metallic and magnetically soft, an outer thin-film coating that is non-metallic, and a backing substrate material for supporting the outer thin-filmed coating interposed the core material and the outer thin-film coating. The backing substrate material may be case hardened material derived from the core material, such as ferritic nitrocarburized (FNC) iron. The outer thin film coating may be a diamond-like carbon (DLC) material.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: September 14, 2021
    Assignee: Caterpillar Inc.
    Inventors: Bao Feng, Andrew Henry Nippert, Qursheed Hussain Mohammed
  • Patent number: 10968877
    Abstract: The invention relates to an electromagnetically controllable suction valve (1) for a high-pressure fuel pump (2), comprising a magnet assembly (3) and a hydraulic module (4), the hydraulic module (4) engaging at least in sections in an annular magnet coil (5) of the magnet assembly (3). According to the invention, a heat-conducting material (6) and/or a heat-conducting body (7) is/are arranged between the magnet coil (5) and the hydraulic module (4). The invention further relates to a method for producing an electromagnetically actuatable suction valve (1).
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: April 6, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Gabriel Cichon, Stefan Kolb, Steffen Holm, Tobias Landenberger
  • Patent number: 10953414
    Abstract: A method of detecting fluid flow through a solenoid valve in a fluid application system includes dispensing fluid through the solenoid valve, de-energizing a solenoid coil of the solenoid valve to close the solenoid valve and control a fluid flow through the solenoid valve, determining a closing time of the solenoid valve based on a signal from a poppet measuring sensor, determining a time delay between the de-energizing the solenoid coil and the closing time, and determining a fluid flow value based on the time delay.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: March 23, 2021
    Assignee: Capstan Ag Systems, Inc.
    Inventor: Duane Needham
  • Patent number: 10954894
    Abstract: A fuel tank system constructed in accordance to one example of the present disclosure includes a fuel tank and an evaporative emissions control system. The evaporative emissions control system is configured to recapture and recycle emitted fuel vapor. The evaporative emissions control system includes a liquid trap, a first device, a second device, a control module and a G-sensor. The first device is configured to selectively open and close a first vent. The second device is configured to selectively open and close a second vent. The control module regulates operation of the first and second devices to provide over-pressure and vacuum relief for the fuel tank. The G-sensor provides a signal to the control module based on a measured acceleration.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: March 23, 2021
    Assignee: Eaton Intelligent Power Limited
    Inventors: Vaughn K. Mills, Matthew Memmer, Curtis T. Moy, Steven Ambrose, Russell Trapp, Robert P. Benjey, Max Russell Franklin, Kenneth Brauning, Santosh Balasaheb Patil, Atish Dinkar Gawale, Santosh Kumar Sharma, Hrushikesh Arun Barve, Pritam Bhurke, Daniel L. Pifer
  • Patent number: 10933856
    Abstract: An electropneumatic pilot unit for controlling a pneumatic consumer is provided herein. The pilot unit comprises at least two electromagnetic pilot valves. Each of the electromagnetic pilot valves comprises a coil for producing a magnetic flux along a valve axis, an armature which can be moved in the axial direction of the valve axis, a valve seat which can be closed and opened by the armature, and a pneumatic inlet port and a pneumatic outlet port. At least two of the pilot valves lie next to each other with parallel valve axes. Each pilot valve has a port which protrudes towards a common underside for connection to a pilot chamber of the consumer controlled by the pilot valves.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: March 2, 2021
    Assignee: WABCO EUROPE BVBA
    Inventors: Lars Didwiszus, Karsten Runge, Hartmut Schappler, Andreas Teichmann, Ingo Torhoff
  • Patent number: 10865891
    Abstract: A control piston (12) is longitudinally displaceable in a housing (10) having two connection points (P, A) for fluid, and cooperates with a metering edge (34) of the housing (10) at a connection point (P). Point (P), in control positions of the control piston (12), supplies the connection point (A) with fluid via a fluid connection. The piston, as a result of occurring flow forces, tends to be drawn in the direction of a closing position that blocks one of these fluid connections. To compensate the flow force, the control piston (12) has, in the region of the control edge (34) of the housing (10), a shape modification (48) of its cylindrical exterior basic form (50), such that a flow contact surface (52) for fluid is created. The contact surface transfers a compensating force that acts against the flow force to the control piston (12) and that seeks to pull the control piston (12) into an opening position opposed to the closing position.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: December 15, 2020
    Assignee: HYDAC FLUIDTECHNIK GMBH
    Inventors: Frank Schulz, Peter Bruck
  • Patent number: 10865907
    Abstract: A solenoid valve has a housing, which has a fluid inlet and a fluid outlet, and an electromagnetic drive, which comprises a solenoid with a fixed core and a movable armature, wherein the armature interacts with a valve seat. A pressure compensation chamber which is bordered by a membrane is formed in the armature, wherein the pressure compensation chamber is in fluid connection in terms of flow with the fluid inlet by means of a pressure compensation channel.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: December 15, 2020
    Inventors: Ralf Strasswiemer, Markus Herrmann, Daniel Beck
  • Patent number: 10844972
    Abstract: By providing a mountain-shaped mountain portion (5a) protruded from a surface of a plunger (5) facing a valve seat to the inside of a rubber member (8), a dimensional change amount of a valve seat abutting portion (8a) in an opening and closing direction decreases, and thus it is possible to suppress change in characteristic. Also, it is possible to secure a rubber deformation amount sufficient for absorbing impact when the valve seat abutting portion (8a) collides with the valve seat, thereby suppressing an operation sound.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: November 24, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Satoshi Nakagawa
  • Patent number: 10738750
    Abstract: In some examples, a static part includes a static body and a first cylindrical extension extending from the static body, the first cylindrical extension including an open end with a cylindrical inner surface having a first diameter. A moveable part is moveable toward the static part by the magnetic flux of a solenoid. The moveable part may include a moveable body and a second cylindrical extension extending from the moveable body, the second cylindrical extension including a cylindrical outer surface having a second diameter, smaller than the first diameter, to enable the cylindrical outer surface to move within the open end. The second diameter is sized for the cylindrical outer surface to pass adjacent to the cylindrical inner surface to enable passage of a portion of the magnetic flux radially to reduce an energy of impact between the moveable part and the static part.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: August 11, 2020
    Assignee: HITACHI, LTD.
    Inventors: Qifan He, Akira Inoue
  • Patent number: 10663079
    Abstract: An electro-pneumatic valve assembly includes a valve having a valve housing and a poppet and a solenoid valve having an actuator housing and a valve body. The valve housing has a wall that defines a valve inlet that is arranged to receive a fluid flow from a pressurized container and defines a valve outlet and a first port. The poppet is disposed within the valve housing and is movable between a first position and a second position. The actuator housing defines an opening. The valve body has a first wall that defines an inlet that is fluidly connected to the first port and a second wall that defines an outlet that is fluidly connected to the second port.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 26, 2020
    Assignee: GOODRICH CORPORATION
    Inventor: Poly Puthur John
  • Patent number: 10612430
    Abstract: An oil control valve for a cam phaser of an internal combustion engine where the spool is positioned by an external actuator. The pressure enters the end of the oil control valve where the resultant pressure force is balanced by the differential area of the spool. The spool contains two plate check valves enabling cam torque recirculation of oil from A to B or B to A depending upon the spool position. In mid position, the spool lands block A and B to hold the cam phaser position. Three or five positions may be utilized.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: April 7, 2020
    Assignee: ECO Holding 1 GmbH
    Inventor: Daniel Stanhope
  • Patent number: 10584802
    Abstract: A valve core for an electronic valve, which includes a valve head, and an armature. The valve head and the armature being connected to each other by means of a guide rod. The valve core is part of an electronic valve. The valve head and armature are connected by means of the guide rod, which reduces the cost for manufacturing the armature. The electronic valve includes an upper stator and a lower stator, an upper bearing and a lower bearing for guiding the guide rod, an elastic component for biasing the valve head, a sleeve surrounding the periphery of the armature, a bobbin which at least partially surrounds the sleeve, and a coil wound on the bobbin. The electronic valve of the present invention may be used as a compressed gas bypass valve of a turbocharged engine.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: March 10, 2020
    Assignee: Continental Automotive GmbH
    Inventors: Jiaqiang Chen, Xiangguang Cao, Guangrui Sun, Baiping Wang, Russell M Modien
  • Patent number: 10557463
    Abstract: A control valve includes: a body having a main passage through which a discharge chamber and a control chamber communicate, and a sub-passage through which the control chamber and a suction chamber communicate; a main valve seat provided in the main passage; a main valve element configured to touch and leave the main valve seat to close and open a main valve; a sub-valve seat provided in the sub-passage; a sub-valve element configured to touch and leave the sub-valve seat to close and open a sub-valve; a solenoid configured to generate a drive force in a valve closing direction of the main valve; an actuating rod for transmitting the drive force of the solenoid to the main valve element and the sub-valve element; a spring for applying a biasing force to the main valve in a valve opening direction; a spring for applying a biasing force to the sub-valve in a valve closing direction; and a differential pressure valve opening mechanism configured to open the sub-valve when a pressure difference between a control
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: February 11, 2020
    Assignee: TGK CO., LTD.
    Inventors: Ryota Sugamura, Shinji Saeki, Masaaki Tonegawa
  • Patent number: 10550953
    Abstract: By forming a recessed portion (24) in a side surface of a valve element (18), a fluid in internal space (22) escapes to external space (23) via a gap made between the recessed portion (24) and a seal ring (3) during the operation of a solenoid valve. Therefore, a load in a direction of closing the valve element (18) decreases, it becomes easy to open the valve element (18), and the responsivity is improved.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: February 4, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Yoshinori Ito
  • Patent number: 10550944
    Abstract: A valve for free-flowing media, in particular a glue valve, with a valve housing, and with a closure member, in particular a valve tappet, which is movable in the valve housing by means of an electromagnet and which bears with a closure piece on a valve seat in the closed position of the valve and which sits at least partially in an in particular continuous interior of a preferably one-piece coil carrier on which the windings of a coil of the electromagnet are wound, and with a valve lift adjustment unit with an elongate abutment part which is arranged at least in part in the interior of the coil carrier and which limits a movement of the closure member in the direction of the valve lift adjustment unit, with the valve lift adjustment unit being is secured on the coil carrier.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: February 4, 2020
    Assignee: Focke & Co. (GmbH & Co. KG)
    Inventors: Jan-Christian Walter, Marc-Daniel Stegen
  • Patent number: 10492460
    Abstract: There is provided a method for improving the reliability and performance of a valve device that transitions between the pressure and vacuum phases for the purpose of milking animals. The improvement properly biases the movable parts and reduces physical wear of the movable parts within the valve device while ensuring proper function of said movable parts.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: December 3, 2019
    Inventors: Lanny Gehm, William Gehm