Including Solenoid Patents (Class 251/129.15)
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Publication number: 20140021388Abstract: An electric valve device including a hollow body with an inlet and an outlet for a flow of fluid, in particular a liquid, between which, inside said body, there is defined a chamber in which there is provided a valve seat intended to cooperate with an associated closing member for controlling communication between the inlet and the outlet; and a tubular guiding formation which is nominally coaxial with the valve seat and inside which there is mounted, axially displaceably to and from the seat, a core which carries the closing member and the position of which with respect to the seat can be electromagnetically controlled by means of a winding or solenoid arranged around said tubular formation. The hollow body and the tubular guiding formation are made as a single piece of moulded plastic.Type: ApplicationFiled: April 2, 2012Publication date: January 23, 2014Applicant: ELBI INTERNATIONAL S.P.A.Inventors: Paolo Da Pont, Maurizio Rendesi, Giosue Capizzi, Paolo Ravedati
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Publication number: 20140021386Abstract: A valve includes a valve housing and a linier solenoid. The linier solenoid includes a cylindrical yoke and is coupled with the valve. An open end of the yoke is crimped to a flanged crimping receiving part provided along an outer periphery of the valve housing, so that the linier solenoid and the valve are coupled together. The open end of the yoke includes a plurality of notches provided in a circumferential direction of the yoke, and the plurality of notches defines a plurality of crimping pieces. Each of the plurality of crimping pieces includes a large part and a small part. The large part is located on a base side of the each of the plurality of crimping pieces and has a larger circumferential width. The small part is located on an tip side of the each of the plurality of crimping pieces and has a smaller circumferential width.Type: ApplicationFiled: April 19, 2013Publication date: January 23, 2014Applicant: DENSO CORPORATIONInventors: Masahiko OCHIAI, Jiro KONDO
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Patent number: 8632050Abstract: An electromagnetic actuating unit for a hydraulic valve with a housing and a closure element. The housing at least partially delimits the electromagnetic actuating unit in relation to the surroundings. The closure element is arranged within an introductory opening of the housing. A sealing-means receptacle is formed on a boundary surface between the housing and the closure element. Furthermore, at least one first channel leads into the sealing-means receptacle and is open towards the surroundings of the actuating unit. A sealing element, which is arranged in the sealing-means receptacle is placed into the sealing-means receptacle via the first channel.Type: GrantFiled: July 4, 2008Date of Patent: January 21, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Herbert Stoeckel, Peter Stegmann, Jens Hoppe, Andreas Kufner
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Patent number: 8632051Abstract: A solenoid, in particular for media-controlling valves, includes in an armature space an armature movably acting on a tappet, and a coil carrying windings of a conductor. The magnetic core delimiting the armature space has a tappet boring that incorporates the axially moving tappet, and a boundary element, that consists of at least partly elastic material and is media- and liquid-proof, is provided between the tappet and the magnetic core. The boundary element includes a fastening area for a sealing connection of the boundary element with the tappet, a connection area for a sealing connection of the boundary element with the magnetic core, and an intermediate part provided between the fastening area and the connection area. The intermediate part surrounds at least part of the length of the tappet like a hose or sleeve.Type: GrantFiled: October 14, 2011Date of Patent: January 21, 2014Assignee: Firma SVM Schultz Verwaltungs-GmbH & Co. KBInventors: Claus Peter Hasel, Bernhard Schönmetzler
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Publication number: 20140014863Abstract: A direct acting solenoid actuator includes an armature and associated push pin that are suspended from certain fixed solenoid components, such as a pole piece and/or flux sleeve, by a fully floating cage of rolling elements. The fixed solenoid component may comprise a pole piece and/or a flux sleeve. The pole piece may include stops to limit movement of the cage of rolling elements in the axial direction.Type: ApplicationFiled: July 11, 2013Publication date: January 16, 2014Inventors: Hamid NAJMOLHODA, Matthew S. Peterson
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Publication number: 20140014864Abstract: A solenoid actuator comprising an armature member that engages a spool including a spool cap on an end of the spool that is axially movable relative to the spool. A bore in the spool allows fluid to flow from a control port to the spool cap, such that pressure is established in the spool cap. The pressure established in the spool cap acts on the spool with a force directly proportional to the control pressure and the fluid-contacting area inside the spool cap.Type: ApplicationFiled: July 11, 2013Publication date: January 16, 2014Applicant: FLEXTRONICS AP, LLCInventors: Hamid NAJMOLHODA, Matthew S. Peterson
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Publication number: 20140014862Abstract: A valve comprising an electromagnetic actuation device having a pole core, a coil which encloses the pole core, and a magnetic yoke element which is associated with the coil, wherein a sealing body is provided which can be moved by a magnetic field, wherein the sealing body is connected to an armature, and wherein the armature can be moved relative to the pole core when the magnetic field is generated, valve which is to be produced with a view to solving the problem of producing an electromagnetically actuated valve which has a compact design and can be opened and closed without any problems, characterized in that the pole core projects into the armature, wherein the pole core, at its end facing the sealing body, is designed in an area in such a manner that the predominant portion of the magnetic flux, between the side of the armature that faces away from the sealing body, and the pole core, is guided through an air gap between the armature and the pole core, as a result of which the armature is pulled towardType: ApplicationFiled: June 6, 2013Publication date: January 16, 2014Inventor: Joerg BITTNER
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Publication number: 20140008559Abstract: A mesofluidic scale digital valve includes a valve body including a bore aligned along a longitudinal axis, a solenoid disposed substantially adjacent to the valve body and extending along the longitudinal axis, a poppet carried within the bore and configured to translate a fixed distance in response to a magnetic field generated by the solenoid, an orifice carried within valve body and configured to cooperate with the poppet in response to the magnetic field generated by the solenoid, and a bias element carried within the valve body and configured to encourage the poppet to engage the orifice to form a seal.Type: ApplicationFiled: September 10, 2013Publication date: January 9, 2014Inventors: Lonnie J. Love, John F. Jansen, Randall F. Lind
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Publication number: 20140008557Abstract: A solenoid valve of the type with a flat core and a flat spring. The present invention related to a solenoid valve comprising a coil, a fixed core arranged inside the coil, a movable core arranged outside the coil, bearing a valve gasket, and a flat return spring to stress the movable core into a rest position, the solenoid valve being characterized in that the flat spring has variable stiffness, preferably bearing without embedding on corresponding surfaces of the solenoid valve.Type: ApplicationFiled: July 5, 2013Publication date: January 9, 2014Inventor: Richard Vandamme
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Publication number: 20140008558Abstract: A valve comprising a drive part having a valve block with at least one outlet opening; a valve part having a tappet that can be moved by a drive, wherein the tappet opens or closes the outlet opening depending on its position; and a spring that is disposed between the valve block and the tappet.Type: ApplicationFiled: July 9, 2013Publication date: January 9, 2014Applicant: SVM Schultz Verwaltungs-GmbH & Co. KGInventors: Helmut Mang, Gerhard Albrecht
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Patent number: 8622365Abstract: A pinch valve includes a spring disposed between a movable iron core of a solenoid and an end cover thereof, and which urges the movable iron core toward the side of a tube provided in a body. An elastic force of the spring is set to be smaller than a reactive force of the tube that is applied to a valve plug. In a non-excited state of the solenoid, the valve plug is pressed toward the solenoid by the reactive force of the tube, so as to enable a fluid to flow through a flow passage of the tube. Conversely, in an excited state of the solenoid, since an attractive force of the movable iron core toward the tube is added to the elastic force of the spring, the valve plug is pressed in opposition to the reactive force of the tube for thereby blocking the flow passage.Type: GrantFiled: May 16, 2012Date of Patent: January 7, 2014Assignee: SMC Kabushiki KaishaInventors: Yoshihiro Fukano, Shoichi Makado, Yasuhiro Ushijima
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Publication number: 20140001385Abstract: Apparatus and methods move a rod via a solenoid. A solenoid moves an armature and compresses a spring when the solenoid is energized. The armature moves in response to the energization of the solenoid and couples with the rod, which transfers motion to a working portion. A stroke limiter limits movement of the first armature within the first solenoid when the solenoid is energized. The stroke limiter comprises a surface with a first portion limiting the movement of the armature, a second portion adjustably coupling the stroke limiter to the solenoid thereby setting a stroke length, the second portion releasably coupling the stroke limiter to a fastener, a third portion allowing for adjustment of the position of the stroke limiter and being shaped to fit an adjusting member. The fastener secures the stroke limiter in place with respect to the solenoid and maintaining the stroke length.Type: ApplicationFiled: June 30, 2012Publication date: January 2, 2014Inventor: Micheal Neil Scott
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Publication number: 20140001387Abstract: A drive device (10) for a valve (1), to a valve (1) for controlling a gas and/or liquid flow (40), and a system (60) for controlling a medium (40). The drive device (10) has a housing (11) for accommodating a coil (17d), which is fixed with respect to the housing (11), and a drive rod (14), on which a pole shoe (15d) and a permanently-magnetic element (16c) that is magnetized, or a soft-magnetic element (16c) that can be magnetized, in the axial direction of the drive rod (14) are attached such that the drive rod (14) can be moved with a translational motion relative to the coil (17d) by magnetic force. The drive rod (14) can be coupled to a shut-off body (33) of the valve (1) that can be moved with a translational motion such that a translational motion of the drive rod (14) affects a translational motion of the shut-off body (33) for opening and closing the valve (1).Type: ApplicationFiled: March 12, 2012Publication date: January 2, 2014Inventors: Ralf Schuler, Gunter Schmid
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Publication number: 20140001386Abstract: A solenoid actuated control valve device includes a housing having a tubular member, a valve seat formed in the tubular member, a movable core engaged in the tubular member, a valve piece attached to the core and moved in concert with the core to engage with the valve seat, the valve piece includes a peripheral flange having an outer peripheral surface for engaging with the inner peripheral surface of the tubular member, and includes a peripheral groove formed in the peripheral flange for defining a peripheral flap and for flexibly or resiliently engaging with the inner peripheral surface of the tubular member, and the valve device includes a structure to be easily manufactured and effectively used for controlling the fluid media.Type: ApplicationFiled: June 28, 2012Publication date: January 2, 2014Inventor: Shih Fen CHUANG
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Patent number: 8616523Abstract: An electromagnetically actuated valve with a valve body which is assigned to a valve seat, is mechanically prestressed in a first direction toward a first switching position and can be adjusted by means of a magnetic actuator in a second, opposite direction into a second switching position is disclosed. The valve body has a planar contact surface which can be brought into sealing contact with a surface of the valve seat, which surface is planar at least in sections.Type: GrantFiled: January 18, 2011Date of Patent: December 31, 2013Assignee: Robert Bosch GmbHInventors: Michael Duerr, Joerg Weingart, Peter Schwaderer
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Publication number: 20130341544Abstract: A solenoid valve includes: a valve body having a fitting hole; a tubular sleeve fitted in a fitting hole and having a valve hole, a supply port, and an output port; and a spool valve that is accommodated in the valve hole of the sleeve and that changes a flow passage area between the supply port and the output port by moving axially. A pair of recessed portions is formed in an outer peripheral face of the sleeve, at positions on axially opposite sides of the supply port, so as to extend in the circumferential direction of the sleeve. A strip-shaped first strainer is fitted in the recessed portions. A cutout into which a pressure for suppressing an offset of the central axis of the sleeve from the central axis of the fitting hole, is formed in the sleeve so as to be communicated with the supply port.Type: ApplicationFiled: June 17, 2013Publication date: December 26, 2013Inventor: Toshio MURAKAMI
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Publication number: 20130340744Abstract: In a solar generator, comprising a reflector and an electrohydraulic sun-position tracking device with at least one hydraulic cylinder and a hydraulic control seat valve, the reflector can be guided via the control seat valve to follow in synchronism with the course of the sun continuously and uninterruptedly. The control seat valve for regulating a pressure medium flow permanently supplied to the hydraulic cylinder comprises a seat surface and a sealing surface permanently pressed against each other with variable contact pressure, with which the pressure medium flow can be generated as controlled leakage. The sealing surface is made of a material that can be deformed by contact pressure. In the control seat valve, the controlled leakage is set in a control position at least substantially without lifting movement exclusively by the relative material deformation of the sealing surface on the seat surface, which deformation is set via the contact pressure.Type: ApplicationFiled: June 18, 2013Publication date: December 26, 2013Inventors: Martin Heusser, Markus Imlauer, Andreas Nocker
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Patent number: 8613421Abstract: A device for the flow control of a liquid or gaseous medium has a valve element which controls at least one flow opening for the medium, and an electromagnet which actuates the valve element and has a magnetic circuit having at least one excitation coil and a solenoid armature coupled to the valve element. To markedly reduce the start-up power for the excitation coil, the solenoid armature is disposed between two diametrically opposed pole pieces located in the magnetic circuit, such that it can swivel about a swivel axis, and is designed such that it extends beyond each pole piece, leaving two air gaps. At least one permanent magnet is disposed in the solenoid armature in a manner such that the magnetic flux thereof closes by way of the pole pieces.Type: GrantFiled: March 3, 2011Date of Patent: December 24, 2013Assignee: ASCO Numatics GmbHInventors: Felix Ams, Peter Metternich De Oliveira
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Patent number: 8613420Abstract: 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: GrantFiled: June 22, 2010Date of Patent: December 24, 2013Assignee: Magna Powertrain AG & Co. KGInventor: Thomas Linortner
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Publication number: 20130334447Abstract: An HVAC system has an electronic expansion valve that has a valve body comprising a first motor component and a coil assembly comprising a plurality of stator bars, the plurality of stator bars being sealed from a surrounding environment by at least one fluid tight barrier at least partially disposed between the valve body and the plurality of stator bars.Type: ApplicationFiled: June 13, 2012Publication date: December 19, 2013Applicant: TRANE INTERNATIONAL INC.Inventor: Eli Carlton Beard
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Patent number: 8609293Abstract: A valve for a pressure vessel system includes a housing having a cavity defined by an inner surface of the housing. The housing further includes a rod aperture and a pair of fluid flow ports. An actuator is disposed adjacent the housing. The valve also includes a piston having a rod coupled to a piston head. The piston head is disposed in the cavity of the housing, and the rod disposed through the rod aperture. The rod is also coupled to the actuator. A ring seal is disposed between the piston head and an inner surface of the housing. The ring seal biases the piston head toward one of the fluid flow ports and seals the one of the fluid flow ports to close the valve when the actuator is deactivated. The ring seal is elastically deformed and the fluid flow ports are opened when the actuator is activated.Type: GrantFiled: October 1, 2010Date of Patent: December 17, 2013Assignee: GM Global Technology Operations LLCInventor: Oliver Maier
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Publication number: 20130327969Abstract: The system, according to one embodiment of the present invention, comprises a stationary coil linear motor to drive a valve with a stem comprising a ferromagnetic property. The linear motor moves the valve in response to control governed by an electronic valve control computer. The valve is movable between a closed position at a selectable rate of both acceleration and speed for a selectable distance (“lift”) to a second selectable open position, including all position variations between the fully open and fully closed states. Valve position, velocity and acceleration can be varied both during a valve stroke and from one stroke to the next, as controlled by the logic programmed on a non-transitive memory of the electronic valve control computer.Type: ApplicationFiled: August 9, 2013Publication date: December 12, 2013Inventors: Richard H. Hutchins, Michael E. Edmonds
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Publication number: 20130327968Abstract: A solenoid valve includes: a sleeve having a supply port and an output port; a spool valve that is housed in a valve hole formed in the sleeve so as to be movable in the axial direction, and that changes a flow passage area between the supply port and the output port by moving in the axial direction; a solenoid portion that pushes the spool valve toward one axial side; and a coil spring that urges the spool valve toward the solenoid portion. A housing hole that is a bottomed hole is formed in the spool valve, and a columnar piston member is slidably housed in the housing hole. The spool valve has an introduction hole through which a pressure of the hydraulic fluid output from the output port is introduced into a space between a bottom face of the housing hole and one end face of the piston member.Type: ApplicationFiled: June 4, 2013Publication date: December 12, 2013Inventors: Masaru SUZUKI, Toshio MURAKAMI, Koichi TAKANISHI, Kaori FUJITA, Itsuki ONO
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Publication number: 20130327970Abstract: A valve for injecting fuel, including a valve positioning element, an armature connected to the valve positioning element, a stop that limits a movement of the armature, and a damping element provided between the armature and the stop, the damping element being applied as a damping layer on at least one part of the armature and/or on at least one part of the stop.Type: ApplicationFiled: November 7, 2011Publication date: December 12, 2013Inventor: Guido Pilgram
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ELECTRONIC FLOW CONTROL METHOD FOR A SPRING DIAPHRAGM IRRIGATION CONTROL VALVE USING A PULSED SIGNAL
Publication number: 20130320250Abstract: Improvements in an electronic valve control system is disclosed where the valve is a spring diaphragm irrigation control valve where the flow rate is controlled with pulsed signal to a control solenoid. This device functions as hydraulic amplifier where the input signal is characterized by the duty cycle ratio of the applied electrical signal, and the output is the flow rate through the irrigation valve. The pilot path of the solenoid on the valve is rapidly alternated between enabled and disable states. This is achieved by installing an electrically actuated valve at some point along pilot path. The electrical signal to this valve is rapidly pulsed. This causes the irrigation valve to be held in a partially opened state. The duty cycle of the pulse signal controls the flow rate of water through the irrigation valve.Type: ApplicationFiled: May 29, 2012Publication date: December 5, 2013Inventors: Daniel GRAHAM, Geza KISCH, Thomas CARR -
Publication number: 20130319535Abstract: A flow control system includes a pilot driven valve having a pilot assembly and a main valve assembly; a displacement measurement component coupled to the main valve assembly indicating displacement of the main valve assembly; and a proportional solenoid responsive to a signal from the displacement measurement component that displaces the pilot assembly in proportion to the changes in displacement of the main valve assembly. The valve is controlled by sensing a displacement of the main valve assembly; and modulating the proportional solenoid in response to the displacement of the main valve assembly.Type: ApplicationFiled: June 5, 2012Publication date: December 5, 2013Applicant: DRESSER, INC.Inventors: Henry William Boger, James Albert Stares
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Patent number: 8596609Abstract: The invention relates to a solenoid valve with a magnet assembly and a valve cartridge having a pole core, a valve insert connected to the pole core, an armature which is guided within the valve insert in an axially movable manner between a closed position and an open position and is coupled to a closing element, and a valve body which is connected to the valve insert and has a main valve seat which is arranged between at least one first flow opening and a second flow opening. The axially movable armature, when the magnet assembly is energized, is moved by a generated magnetic force within the valve insert in the direction of the pole core counter to a spring force of a resetting spring and counter to a fluid force in order to lift the closing element out of the main valve seat; and to permit a flow of fluid between the at least one first flow opening and the second flow opening.Type: GrantFiled: July 2, 2008Date of Patent: December 3, 2013Assignee: Robert Bosch GmbHInventors: Klaus Heyer, Massimiliano Ambrosi, Michael Eisenlauer, Michael Rietsche, Michael Tischer, Stephan Steingass, Michael Hilden
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Publication number: 20130313455Abstract: A valve for use in a turbocharger of a motor vehicle, comprising a housing, a movable valve body and an electromagnetic actuating device, whereby a sealing device is arranged on one end of the movable valve body in order to rest in a sealing manner on a sealing seat, whereby the electromagnetic actuation device moves the valve body and whereby a radial sealing area is provided on the sealing device which area can be placed on an inner wall of the housing, as regards the task of realizing a valve whose sealing device can readily seal an opening with a relatively large diameter, given a suitable construction, characterized in that the radial sealing area and the sealing device are constructed in one piece and from the same material.Type: ApplicationFiled: April 17, 2013Publication date: November 28, 2013Applicant: EAGLE ACTUATOR COMPONENTS GMBH & CO. KGInventor: Joerg BITTNER
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Publication number: 20130313453Abstract: A solenoid valve for controlling a fluid has a first housing part (2), an axial guide (3), facing inwards, for an armature (4) which can be displaced in the axial guide (3) under the effect of a solenoid (5) that at least partially surrounds the exterior of the first housing part (2), a return spring (6) and a closing element (27) impacting a valve closing element (7), and a second housing part (9) which is arranged coaxially to the first housing part (2). The solenoid valve according to the invention is characterized in that the first housing part (2) has a reduced wall portion (17) which faces inwards towards the armature (4) and the second housing part (9) and which effects a magnetic separation of the two housing parts (2, 9) to at least some extent.Type: ApplicationFiled: August 6, 2013Publication date: November 28, 2013Inventors: Philipp HILZENDEGEN, Franz-Rudolf HELL, Andreas BERESCHKA
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Publication number: 20130312730Abstract: A valve apparatus includes substantially co-aligned first and second valve seats and substantially co-aligned first and second valve members. The first valve member is moveable relative to the first valve seat between at least an open position in which the first valve member is spaced from the first valve seat and a closed position in which the first valve member is seated against the first valve seat. The second valve member is moveable relative to the second valve seat between at least an open position in which the second valve member is spaced from the second valve seat and a closed position in which the second valve member is seated against the second valve seat. An armature is operable for moving the first and second valve members, in response to a magnetic field generated by a coil.Type: ApplicationFiled: January 24, 2012Publication date: November 28, 2013Applicant: Emerson Electric Co.,Inventors: Mark H. Stark, Mike C. Santinanavat, Ryan D. Jensen, John F. Broker
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Patent number: 8590859Abstract: The disclosure relates to a solenoid valve (1) having a solenoid armature (2) which is operatively connected to a sealing element (5) of the solenoid valve (1) in order to move the same, and an armature opposing piece (16) which engages, at least in certain areas, in a receptacle opening (23) in the solenoid armature (2). There is provision here for the armature opposing piece (16) to be composed of a pole core (19) and an intermediate component (20) which is supported on the pole core (19), wherein only the intermediate component (20) is arranged at least in certain areas in the receptacle opening (23), and at least one venting opening (33, 36), which produces a fluid connection between the receptacle opening (23) and the surroundings of the solenoid armature, is formed in the intermediate component (20). The disclosure also relates to a driver assistance device.Type: GrantFiled: December 22, 2010Date of Patent: November 26, 2013Assignee: Robert Bosch GmbHInventor: Edgar Kurz
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Publication number: 20130306895Abstract: An armature chamber receives an armature and includes a first armature chamber, which is placed adjacent to one end surface of the armature and is communicated with a spring chamber, and a second armature chamber, which is placed adjacent to the other end surface of the armature, which is opposite from the one end surface of the armature. The armature includes a primary communication passage that communicates between the first armature chamber and the second armature chamber. An opening end of the primary communication passage, which opens on a side where the first armature chamber is located, is placed at a corresponding location of the armature, which is opposed to the spring chamber.Type: ApplicationFiled: May 16, 2013Publication date: November 21, 2013Inventors: Fumiaki ARIKAWA, Naoki MITSUMATA
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Publication number: 20130306891Abstract: A magnet valve includes a magnet armature connected to a sealing element and configured to displace the sealing element. The magnet armature has faces. The magnet valve also includes fluid chambers and a flow path via which fluid chambers that lie on opposing faces of the magnet armature are fluidically connected. A damping element is arranged in the magnet valve and is configured to be displaced in an axial direction. The damping element protrudes into the flow path at least in some regions.Type: ApplicationFiled: June 10, 2011Publication date: November 21, 2013Applicant: Robert Bosch GmbHInventors: Klaus-Dieter Fietz, Volker Unsoeld, Manfred Maerz, Valentin Schubitschew, Scott Ducworth
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Publication number: 20130306894Abstract: The invention comprises a valve that can be operated by a drive, wherein the drive positions an adjustment element relatively to a nozzle for opening and closing the nozzle. On its side facing the nozzle, the adjustment element has a sealing element resting on the nozzle seat, when the valve is closed, and being lifted from the nozzle seat, when the valve is opened.Type: ApplicationFiled: May 16, 2013Publication date: November 21, 2013Inventors: Johann Weiß, Ralph Wassermann
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Patent number: 8585014Abstract: A linear solenoid comprising: linear solenoid portion, comprising: a coil; a cylindrical movable core which is attracted toward a fixed core when the coil is energized; and a cylindrical yoke which surrounds an outer circumference surface of the movable core, wherein the movable core has a shaft-less structure, a first plain bearing and a second plain bearing for slidably supporting both ends of the movable core are provided respectively at both ends of a cylindrical yoke along its axis, and the first plain bearing and the second plain bearing are provided to be projected from the inner circumference surface of the cylindrical yoke by a predetermined length T toward the movable core.Type: GrantFiled: May 10, 2010Date of Patent: November 19, 2013Assignee: Keihin CorporationInventors: Naoki Oikawa, Shigeto Ryuen, Takashi Yokoyama
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Patent number: 8585009Abstract: A flow control valve including a linear electric actuator for controlling flow through the valve, and a closure device operable to close the valve independently of the linear electric actuator if the linear actuator is disabled when the valve is open.Type: GrantFiled: December 8, 2008Date of Patent: November 19, 2013Assignee: Kohler Mira LimitedInventors: Xiangzhen Zhu, Richard Timothy Hopson
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Patent number: 8584707Abstract: A manifold assembly configured for distributing fluid to an externally connected hydraulic component which may be capable of leakage detection through measurement of pressure decay. The manifold assembly may include a manifold body and a valve assembly. The manifold body may have a plurality of fluid passages. Fluid flow may be controlled by the valve assembly attached to the manifold body. The valve assembly may include two valve devices capable of controlling fluid flow. When fluid is blocked by the valve devices, any fluid leakage may be unloaded from the valve assembly through an orifice located between the two valve devices. The orifice may provide a pressure unloading feature which may increase accuracy of measuring the pressure decay during leakage detection.Type: GrantFiled: December 2, 2010Date of Patent: November 19, 2013Assignee: International Engine Intellectual Property Company, LLCInventor: Steven L. Ambrose
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Publication number: 20130298880Abstract: A valve assembly for a high-pressure fluid reservoir includes an isolation valve having a selectively energizable coil, an armature that is moveable between a first position when the coil is energized and a second position when the coil is de-energized, and an isolation valve seal coupled to the armature. The assembly also includes a float valve having a float with a passage at a bottom portion and an orifice at a top portion of the float, wherein the isolation valve seal is aligned to open and close the passage and wherein vapor flows through the passage and the orifice when the coil is energized during a high pressure condition. A housing houses both the isolation valve and the float valve and has a port that is opened and closed by the float valve.Type: ApplicationFiled: January 19, 2012Publication date: November 14, 2013Applicant: EATON CORPORATIONInventors: Daniel Lee Pifer, Vaughn K. Mills
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Patent number: 8581683Abstract: An electromagnetic actuating unit of a hydraulic directional valve, which has an armature and a first and a second magnet yoke. The first and the second magnet yokes at least partially bind an armature space, the armature is arranged in the armature space so as to be axially displaceable, and the first and the second magnet yokes face each other in the axial direction of the armature.Type: GrantFiled: July 3, 2009Date of Patent: November 12, 2013Assignee: Shaeffler Technologies AG & Co. KGInventors: Jens Hoppe, Markus Kinscher
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Publication number: 20130291807Abstract: Disclosed herein is a gas control apparatus for a boiler, which has a simple structure and enables easy assembly, thus improving productivity and reducing manufacturing costs, therefore enhancing the competitiveness of a product. The gas control apparatus includes a solenoid retracting or ejecting a rod in response to application of power. A cylindrical support unit is coupled to an upper portion of the solenoid and has a suction port and an exhaust port on a side surface and an upper surface thereof, respectively, with a groove being formed along a lower edge of the support unit. A separator is provided between the solenoid and the support unit in such a way that an edge thereof is inserted into the groove. An opening and shutting plate is mounted to an upper end of the rod and opens and shuts the exhaust port of the support unit.Type: ApplicationFiled: November 29, 2011Publication date: November 7, 2013Applicant: UNICK CORPORATIONInventors: Chang-Hoon Lee, Kuk-Chan Moon, Seong-Jun Kim, Kang-Woo Park
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Publication number: 20130294623Abstract: Systems and methods for a high performance transducer are disclosed. For example, one described transducer includes: a pressure locking chamber with at least one orifice; a two-state solenoid configured to be controlled by a control circuit and a capacitor, the two-state solenoid comprising a solenoid housing; and a permanent magnet assembly configured to be actuated by the two-state solenoid to move between an open and a closed position, the permanent magnet assembly comprising a stopper configured to seal the at least one orifice in the closed position.Type: ApplicationFiled: July 2, 2013Publication date: November 7, 2013Inventors: Andy Askew, Dale Yarbrough, Gregory Lyon, Stanley Przybylowicz
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Publication number: 20130291535Abstract: The invention relates to an actuating device, in particular for a vehicle brake, wherein hydraulic fluid is supplied to an actuator, in particular a wheel brake, from a piston-cylinder unit via a first hydraulic connection and a solenoid valve. According to the invention, it is provided that a further hydraulic connection connects the piston-cylinder unit to a hydraulic liquid container, and in that a solenoid valve device is arranged in this connection, which solenoid valve has at least two valves which are effective in different flow directions.Type: ApplicationFiled: January 9, 2012Publication date: November 7, 2013Applicant: IPGATE AGInventors: Heinz Leiber, Carsten Hecker
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Publication number: 20130292590Abstract: A solenoid valve, particularly for a hydraulic braking system of a motor vehicle, includes a valve sleeve in which a pole core is fixed and an armature is disposed in an axially displaceable manner. The armature includes at least one longitudinal groove in the outer shell surface thereof. A spring washer is configured to be braced between the armature and the pole core. The end face of the armature facing the pole core is configured to be at least substantially convex, and the end face of the pole core facing the armature is configured to be at least substantially concave. A braking system includes the solenoid valve.Type: ApplicationFiled: August 30, 2011Publication date: November 7, 2013Applicant: Robert Bosch GmbHInventor: Wolf Stahr
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Patent number: 8573559Abstract: A control valve includes a valve body with a longitudinal bore into which a first port, a second port, and a workport communicate. A valve element is slideably received within the longitudinal bore and has a valve element bore extending inwardly from one end. An aperture extends through the valve element to provide a fluid path between the workport and selectively the first port and the second port in different positions of the valve element in the longitudinal bore. A slug of solid material is received within the valve element bore and is operatively connected to transfer a force to a stationary component of the control valve without the force being applied to the valve element. This arrangement results in force due to pressure in the longitudinal bore acting on only an annular surface at the one end of the valve element.Type: GrantFiled: April 18, 2012Date of Patent: November 5, 2013Assignee: HUSCO Automotive Holdings, LLCInventor: Curtis L. Van Weelden
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Patent number: 8574225Abstract: Devices, systems, and methods efficiently dilate and/or cool blood vessels and other body tissues. Controlled cooling with balloon catheters and other probes may be effected by a change in phase of a cryogenic fluid, often after measuring a minimum pulse width for actuating an individual solenoid valve along the cooling fluid path, with the measured pulse width allowing gradual inflation of a balloon without excessive venting of cooling fluid.Type: GrantFiled: October 20, 2009Date of Patent: November 5, 2013Assignee: Boston Scientific Scimed, Inc.Inventor: Bryron Reynolds
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Patent number: 8576032Abstract: An actuator including actuator base, bobbin, and pole piece forming a pocket for a ferromagnetic armature located therein. The actuator including a radial magnet and a solenoid coil constructed and arranged to cause a linear displacement of the armature upon application of a coil drive current from a control circuit. The actuator may include a flexible membrane that partially encloses the armature to form an armature chamber filled with an incompressible fluid. In a valve design, a fluid flow is stopped by driving the membrane against a valve seat. Pressure from the controlled fluid in the conduit is transmitted through the membrane to the fluid within the armature chamber so that the armature does not need to counteract force applied to the membrane by the conduit fluid's pressure. A fluid flow is opened by driving the membrane away from the valve seat.Type: GrantFiled: July 16, 2009Date of Patent: November 5, 2013Assignee: Sloan Valve CompanyInventors: Kay Herbert, Natan E. Parsons, Xiaoxiong Mo, Fatih Guler
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Patent number: 8573507Abstract: In a fuel injection device, a pressure control valve is configured to make communication between an outflow port and a return channel and to interrupt the communication so as to control pressure of a fuel in a pressure control chamber, a valve member is configured to open and close a valve portion in response to the pressure of the fuel in the pressure control chamber, and a pressing member is arranged to be reciprocated and displaced in the pressure control chamber. The pressing member has an outer wall surface portion that is opposite to an inner wall surface portion of the control body to be capable of contacting the inner wall surface portion of the control body, and at least one of the outer wall surface portion of the pressing member and the inner wall surface portion of the control body is provided with a recess portion that is recessed to a side separated from the other one of the outer wall surface portion of the pressing member and the inner wall surface portion of the control body.Type: GrantFiled: March 31, 2011Date of Patent: November 5, 2013Assignee: Denso CorporationInventors: Fumihiro Fujikake, Yoichi Kobane, Tsukasa Yamashita
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Publication number: 20130284955Abstract: A valve cartridge has a capsule and a valve insert, which is connected to the capsule by way of a first end and has a valve body with a main valve seat at the other end. A plunger is movably guided within the valve cartridge, it being possible for the plunger to move against the force of a return spring and the plunger having a closing element with a sealing element that interacts with the main valve seat of the valve body in a sealing manner to provide a sealing function. A corresponding solenoid valve has a valve cartridge of this kind. A magnetic damping assembly has a permanent magnet and an electrical conductor which is arranged in the magnetic field of the permanent magnet and is coupled to the moving plunger and can be moved substantially perpendicular to the magnetic field.Type: ApplicationFiled: April 25, 2013Publication date: October 31, 2013Applicant: Robert Bosch GmbHInventor: Vaclav Kocourek
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Publication number: 20130284960Abstract: A solenoid valve includes a valve sleeve comprising a valve seat, a valve closure element which acts on the valve seat, and a housing. Arranged in the housing is a coil, an armature, a core, and a multiple-part return-path arrangement, which form an electromagnetic circuit. The core is arranged on a side of the housing opposite to the valve sleeve and is wound onto a coil former. The coil former comprises a first portion with an internal diameter and a receiving bushing for the valve sleeve arranged on a side opposite to the core. A movable armature acts on the valve closure element. The armature is mounted in the coil former via a bearing and comprises parts including a first part directed toward the core having a diameter. The diameter of the first part is larger than the internal diameter of the first portion of the coil former.Type: ApplicationFiled: November 15, 2011Publication date: October 31, 2013Applicant: PIERBURG GMBHInventors: Franz-Josef Schnelker, Werner Buse, Christoph Sadowski, Rolf Lappan, Rolf Dohrmann
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Publication number: 20130284961Abstract: A solenoid valve includes a housing within which is arranged a coil wound onto a coil former, an armature, a core, and a multiple-part return path arrangement, which together form an electromagnetic circuit. The armature is configured to be movable and to act at least indirectly on a valve closure element mounted in the coil former via a bearing. The multiple-part return-path arrangement comprises at least one return-path cover section, a return-path side section and a return-path inner section.Type: ApplicationFiled: November 15, 2011Publication date: October 31, 2013Applicant: PIERBURG GMBHInventors: Franz-Josef Schnelker, Werner Buse, Christoph Sadowski, Rolf Lappan, Rolf Dohrmann