Bypass Patents (Class 236/34.5)
  • Patent number: 9732644
    Abstract: A valve for a vehicle provided between a transmission and an oil cooler for cooling transmission oil may include a valve housing in which a first inflow port connected to the transmission and an exhaust port connected to the oil cooler are formed on both sides facing each other and a bypass port connected to the transmission and a second inflow port connected to the oil cooler are formed at a position spaced apart from the first inflow port and the exhaust port along a length direction of the valve housing, and a control unit that is mounted inside the valve housing selectively connects the first inflow port to the exhaust port or the bypass port while expansion or contraction is performed depending on a temperature of the transmission oil, and selectively closes the exhaust port to control a flow stream of the transmission oil.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: August 15, 2017
    Assignees: HYUNDAI MOTOR COMPANY, INZICONTROLS CO., LTD.
    Inventors: Jaeyeon Kim, Sangyong Rhee, Jichul Lee
  • Patent number: 9726068
    Abstract: The present invention relates to a cooling device and a control method for the same. This cooling device includes: a first cooling liquid line routed by way of a cylinder head and a radiator; a second cooling liquid line routed by way of a cylinder block while bypassing the radiator; an electric flow rate control valve whose inlet is connected to the first and second cooling liquid lines, and whose outlet is connected to the intake side of an electric water pump; and a bypass line that branches off from the first cooling liquid line at a point between the cylinder head and the radiator and that joins to the outlet of the flow rate control valve while bypassing the radiator. A control unit controls the flow rate control valve according to the temperature of the cylinder head and the temperature of the cylinder block.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: August 8, 2017
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Atsushi Murai, Tomoyuki Murakami, Shigeyuki Sakaguchi, Yuichi Toyama, Masahiko Watanabe, Hideaki Nakamura
  • Patent number: 9581237
    Abstract: An active fluid reservoir for transmission fluid of an automatic transmission, in a first embodiment, comprehends an elongate reservoir disposed adjacent fluid lines from the automatic transmission to the transmission fluid cooler. The reservoir may be associated with either the supply or return line or include two smaller reservoirs associated with both lines. Thermally actuated valves at each end of the reservoir(s) open to allow fluid flow through the reservoir as fluid temperature increases and a diverter valve in the cooler line(s) closes to divert flow into the reservoir. In a second embodiment, the fluid reservoir comprehends a container, tank or similar storage device in fluid communication with a transmission oil cooler line. Again, the device includes three thermally actuated valves.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: February 28, 2017
    Assignee: GM Global Technology Operations, LLC
    Inventor: Kenneth E. Stevens
  • Patent number: 9534857
    Abstract: The liquid cooling system has a heat exchanger having a fluid inlet and an outlet; a fluid supply conduit leading to the inlet of the heat exchanger; a fluid return conduit extending from the outlet of the heat exchanger; a bypass conduit extending between the fluid supply conduit and the fluid return conduit; a thermal valve configured for selectively closing the bypass conduit, the valve having a temperature sensing element positioned downstream of both the heat exchanger and the bypass conduit, the temperature sensing element configured to selectively move the thermal valve in response to a temperature change of the liquid which the temperature sensing element is exposed to relative to a temperature threshold of the valve; and a deflector positioned between the temperature sensing element and at least one of the bypass conduit and the heat exchanger outlet.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: January 3, 2017
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Marc Jordan Adique, Kevin Ng, Daniel Alecu
  • Patent number: 9500191
    Abstract: A compressor system including a lubricant inlet compresses a gas and discharges a mixed flow of compressed gas and lubricant. A valve housing includes a hot and a cooled lubricant inlet, and a lubricant outlet. A sleeve is disposed within the valve housing and is movable between a first and a second position. The sleeve defines a mixing chamber and includes a first aperture with the hot lubricant inlet and a second aperture with the cooled lubricant inlet. The hot and cooled lubricant mix in the mixing chamber are directed to the lubricant inlet of the compressor. A thermal element is positioned to sense a temperature and moves the sleeve in response. The movement of the sleeve varies the amount of hot lubricant admitted through the first aperture and varies the amount of cooled lubricant admitted through the second aperture to control a lubricant temperature.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: November 22, 2016
    Assignee: Ingersoll-Rand Company
    Inventors: Paul A. Scarpinato, Larry R. Stutts, Sudhir Sreedharan
  • Patent number: 9377789
    Abstract: A thermostat apparatus may include a thermostat case where a first passage may be formed, a first valve that may be disposed in the thermostat case to open or close the first passage, wherein a mounting protrusion may be formed along an inner circumference of the first valve, a drive portion that may be disposed to penetrate the first valve and moves the first valve depending on temperature to open or close the first passage, and a rubber cap that a first side interior circumference thereof contacts an exterior circumference of the mounting protrusion of the first valve and a second side interior circumference thereof slidably contacts an exterior circumference of the drive portion.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: June 28, 2016
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Philgi Lee
  • Patent number: 9359933
    Abstract: A thermostatic valve assembly for a cooling system of an internal combustion engine provided with a radiator is provided. The thermostatic valve assembly includes a valve body having an inlet from the radiator, an inlet from the engine and an outlet to the engine. A main valve plate opens and closes the pathway of a cooling fluid from the radiator. A wax element is placed in a chamber of the valve body in fluid communication with the inlets and the outlet. The wax element has a piston mechanically connected to the main valve plate at a distal end. A main spring keeps the main valve plate closed until a target temperature of the cooling fluid coming from the engine is reached. An auxiliary valve plate opens and closes a direct pathway of the cooling fluid from the radiator to the chamber in which the wax element is placed.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: June 7, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Luca Borgia, Carmine Pezzella
  • Patent number: 9360873
    Abstract: A thermostat having improved reactivity may include a thermostat case having side connected to first and second passages, and a third passage formed between the first and second passages in a side direction, a valve body where first and second valves are formed to open/close the first and second passages, and a mounting space is formed in the valve body, an elastic member elastically pushing the valve body in a direction of the first valve such that the first valve closes the first passage, and a drive portion moving the valve body in response to contraction or expansion of a wax disposed in the mounting space. A flowing turn wall may be formed to correspond to the third passage such that a liquid flowing in through the second passage moves in a direction opposite to the third passage.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: June 7, 2016
    Assignees: Hyundai Motor Company, Kia Motors Company
    Inventor: Philgi Lee
  • Patent number: 9292019
    Abstract: The invention relates to a thermostat insert having at least one return spring, a thermostatic working element having a working piston that can be pushed out of a housing of the working element against the force of the return spring, a main valve element, and a short circuit valve element connected to the working element displaced when the working piston is pushed out of the housing, a base element implemented as a base plate, and a brace on which the return spring is supported, wherein the brace is mechanically connected to the base element, so that the return spring is enclosed in a cage-like manner, and the exterior of the brace has a closed peripheral collar seated against a slanted sealing surface of a counterpart after installation that is loaded by the return spring so that the brace is sealingly forced in the direction of the slanted sealing surface.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: March 22, 2016
    Assignee: MAHLE INTERNATIONAL GMBH
    Inventors: Andreas Auweder, Martin Holzhauser
  • Patent number: 9285049
    Abstract: A thermostat device having a first coolant flow path; a second coolant flow path; a casing including a thermostat container portion that communicates with the first and second coolant flow paths; a third coolant flow path that communicates with the thermostat container portion; a cap that covers the thermostat container portion; a thermostat including a thermo-element that advances and retreats in response to changes in temperature of a coolant that flows through the thermostat container portion; a temperature sensor disposed within the thermostat container portion and which detects the temperature of the coolant; a sensor mount in which the temperature sensor is embedded, integrated into an inside end of the cap; and a lead connector extending from the temperature sensor and integrated into an outside end of the cap.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: March 15, 2016
    Assignee: Nippon Thermostat Co., Ltd.
    Inventor: Noriyasu Yajima
  • Patent number: 9255748
    Abstract: A heat exchanger for a vehicle includes a heat radiating portion provided with first and second connecting lines formed by alternately stacking a plurality of plates and first and second operating fluids heat-exchanging with each other while passing through the first and second connecting lines; a bifurcating portion connecting an inflow hole for flowing one of the operating fluids with an exhaust hole for exhausting the one operating fluid, and adapted for the one operating fluid to bypass the heat radiating portion according to a temperature of the one operating fluid; and a valve unit mounted at the inflow hole forming the bifurcating portion and adapted to flow the operating fluid selectively to the heat radiating portion or the bifurcating portion according to a temperature of the one operating fluid flowing into the inflow hole.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: February 9, 2016
    Assignees: HYUNDAI MOTOR COMPANY, KBAUTOTECH CO., LTD.
    Inventors: Wan Je Cho, Jae Yeon Kim
  • Patent number: 9217358
    Abstract: A thermostat device useful in a cooling system circulating liquid coolant has a valve, a cylindrical valve seat having an inner peripheral surface, and a circular sealing lip elastically pressure welded to the inner peripheral surface when the valve is closed, the sealing lip forming a waveform having concavity and convexity curving in the valve drive direction due to a thermo-sensitive movable body, allowing displacement of the contact position of the sealing lip with the inner peripheral surface when the valve is closed in the valve drive direction according to the position in the circumferential direction of the circular sealing lip, which device stabilizes system operation during initial valve opening, and which device stabilizes the liquid coolant temperature.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: December 22, 2015
    Assignees: FUJI BELLOWS CO., LTD., COREA ELECTRONICS CORPORATION
    Inventor: Hee Wan Park
  • Patent number: 9194279
    Abstract: The disclosure relates to a control valve for a medium circuit of an internal combustion engine, in particular to a thermostat of a coolant circuit of the internal combustion engine. The control valve includes a valve housing, an expansible material element arranged in a valve body, an energy accumulator having an abutment element, a valve seat, and at least one locking element arranged on the abutment element, each locking element having a counter-latching face. The control valve has a first position wherein the counter-latching face of each locking element is in a non-positive connection with a corresponding latching face of the valve housing in order to force the control valve into a mechanically blocked, forced-open position, the latching face being formed by means of an opening edge in the valve housing. This position may enable a quick and reliable initial filling or refilling of the coolant circuit.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: November 24, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Kay Hohenboeken, Bert Pingen, Michael Tobergte, Stefan Quiring, Richard Fritsche
  • Patent number: 9169748
    Abstract: A bypass system for a transmission is disclosed. A transmission casing defines a first aperture and a second aperture. A valve assembly includes a housing defining a first port and a second port. The housing defines an inlet in fluid communication with the first port for guiding a fluid into the transmission casing and an outlet in fluid communication with the second port for guiding the fluid out of the transmission casing. The valve assembly further includes an actuation device disposed in the housing. The housing is mounted to the transmission casing such that the first port and the first aperture cooperate with each other for routing the fluid into the transmission casing directly from the valve assembly, and the second port and the second aperture cooperate with each other for routing the fluid out of the transmission casing directly into the valve assembly.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: October 27, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Martin Phillip Van Fossan, Mark Olsen
  • Patent number: 9133952
    Abstract: A fluid control thermostatic valve contains thermally responsive wax. As temperature rises, the wax expands thus pushing a deformable member up a confined path defined by guide 40 until the member contacts a fixed post 60. An immobile retainer 72 is secured to the fixed post 60. Force from the elastic member against the post causes actuator 30 to separate from retainer 72, thus opening a flow passage. The control valve is unique because retainer 72 functions as both a valve seat for actuator 30 and a fixed support for spring 84.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: September 15, 2015
    Assignee: Rostra Vernatherm LLC
    Inventors: Kevin Lamb, Kenneth Lionello, Tim Haskell
  • Patent number: 9098095
    Abstract: A cooler bypass apparatus housing has a first fluid passageway connecting a first inlet and a first outlet port, and a second fluid passageway connecting a second inlet port and outlet port. A transverse passageway extends between the first and second fluid passageway. A first valve is disposed in the transverse passageway for one-way fluid flow from the first to the second passageway. A second valve and a thermal actuator coupled to the second valve are disposed in the second passageway. The thermal actuator moves the second valve to fluid flow blocking or fluid flow allowing positions dependent upon fluid temperature.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: August 4, 2015
    Assignee: Jiffy-tite Co., Inc.
    Inventors: Robert B. Strzelczyk, James Caroll, Steven R. Zillig, James D. Messecar, Sr., Michael A. Lenartowicz, Kip Stevely, Dan Metz
  • Patent number: 9044893
    Abstract: The invention relates to a method for saving energy in an extrusion line comprising at least one extruder, an extrusion tool, a cooling section, and an outlet, energy being applied in the form of heat to a plastic for plasticization at least in the extruder, in order to produce a profile (8), and the heat being removed again from the profile (8) after a forming process, at least in the cooling section, in order to achieve shape stability of the same. According to the invention, at least one part of the removed heat is converted to mechanical energy and fed back into the extrusion process. The invention further relates to a corresponding device.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: June 2, 2015
    Assignee: Battenfeld-Cincinnati Austria GmbH
    Inventor: Leopold Hackl
  • Publication number: 20150108229
    Abstract: A thermostatic valve to connect a heat source, in particular a gear drive with a heat exchanger, particularly a motor vehicle, having a thermostatic valve housing with a first inlet connection for a first inlet port and a second inlet connection for a second inlet port as well as a first outlet connection for a first outlet port and a second outlet connection for a second outlet port, with a moveable working element in an intake opening of the thermostatic valve housing to open and close the inlet and outlet ports and a separate restriction element is provided in the thermostatic valve housing between the first inlet connection and the first outlet connection.
    Type: Application
    Filed: October 23, 2014
    Publication date: April 23, 2015
    Inventors: Andreas AUWEDER, Stefan BEURER
  • Publication number: 20150101789
    Abstract: First circulation portions switch a flow of a heat medium such that one of the heat media for two systems selectively circulates through a radiator flow path or a first bypass flow path. Second circulation portions switch the flow of the heat medium such that the heat media for the two systems selectively circulate with respect to a second flow path group. The first circulation portions and the second circulation portions are adapted to switch the flow of the heat medium so as to form a first circulation circuit for allowing the heat medium to circulate among a first flow path group, the second flow path group, and a first pump, as well as a second circulation circuit for allowing the heat medium to circulate among the first flow path group, the second flow path group, and a second pump.
    Type: Application
    Filed: May 16, 2013
    Publication date: April 16, 2015
    Inventors: Norihiko Enomoto, Nobuharu Kakehashi, Michio Nishikawa, Yasumitsu Omi, Takashi Yamanaka, Masayuki Takeuchi
  • Patent number: 8991719
    Abstract: A thermal by-pass valve for a heat exchange circuit includes a housing forming a chamber and a by-pass valve port surrounded by a valve seat. The valve port is located between first and second sections of the chamber. First and second oil ports open into the first section. At least a third port opens into the second section. A thermally sensitive actuator is mounted in the first section and has a body and a piston located at one end. The body is movable in the chamber in response to extension of the piston. A valve member is operably mounted on the body and is movable by extension of the piston. A spacer projects from and is connected to the body and forms a passage through which the piston extends. The spacer acts to maintain the adjacent end of the actuator body at least the length of the passage away from an end of the chamber. The spacer can have a valve portion to close a further valve port.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: March 31, 2015
    Assignee: Dana Canada Corporation
    Inventor: Jeffrey Owen Sheppard
  • Patent number: 8991339
    Abstract: The present disclosure relates to a multiple zone vehicle radiator, including: a housing; a first zone included in the housing; a second zone included in the housing; a baffle between the first and second zone, located in an outlet manifold of the housing; and a zone modifier configured to regulate coolant distribution between the first zone and second zone according to predetermined conditions.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: March 31, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: James Thomas Gooden, Scott Russo, Michael Joseph Giunta
  • Patent number: 8978992
    Abstract: A cooler bypass valve apparatus installed the apparatus between a heat exchanger and conduits coupled to a device carrying fluid that needs to be cooled. A housing includes an inlet port and first and second outlet ports. At least one thermal actuator and at least one valve are mounted in a fluid flow passageway in the housing and operative in response to the fluid temperature to move the at least one valve between operative positions opening and closing fluid flow from the inlet port through the first and second outlet ports between a heat exchanger bypass loop and a heat exchanger cooling loop. In another aspect, two thermal actuators control a separate valve associated with the first and second outlets between open and closed positions enabling fluid flow from the inlet port exclusively through one of the first and second outlet ports or in a combined partial flow through both of the first and second outlet ports.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: March 17, 2015
    Assignee: Jiffy-Tite Company, Inc.
    Inventors: Steve Zillig, Robert Howard Stoll, Joseph Anthony Giarrizzo, Michael Jonas, Arthur J. Murray
  • Patent number: 8978596
    Abstract: A powertrain cooling system includes a coolant pump and coolant flow passages. A first three-position valve is operatively connected with an outlet of the coolant pump and has a first, a second, and a third position to at least partially establish different coolant flow modes through the coolant flow passages. Coolant flow from the coolant pump is blocked from both the cylinder head and the engine block in a first coolant flow mode when the three-position valve is in the first position. Coolant flow from the coolant pump is provided to the cylinder head and is blocked from the engine block in a second coolant flow mode when the three-position valve is in the second position. Coolant flows from the coolant pump to the engine block and from the engine block to the cylinder head in a third coolant flow mode when the three-position valve is in the third position.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: March 17, 2015
    Assignee: GM Global Technology Operations LLC
    Inventor: Daniel B. Glassford
  • Patent number: 8973537
    Abstract: An engine system may include a thermostat casing connected to a first, second, third, and fourth flow channels, a valve guide in which a main valve that opens and closes the first flow channel is formed at one side, a closing valve that opens and closes the second flow channel is formed at the other side, and a bypass valve is formed adjacent to the closing valve, an elastic member that elastically supports the valve guide to enable the main valve to block the first flow channel and the closing valve to block the second flow channel, a driver that moves the valve guide so that the main valve opens the first flow channel and the closing valve opens the second flow channel according to a temperature of a coolant, and a control unit that controls the temperature and a flow of the coolant by controlling the driver.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: March 10, 2015
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Philgi Lee, Gyuhwan Kim, Jae Suk Park, Yong Jeong Kim
  • Publication number: 20150053777
    Abstract: A water-cooling apparatus for cooling an engine includes a radiator for cooling coolant, a first flow passage connected with the engine, a second flow passage branched from the first flow passage and connected with the radiator, a third flow passage whose one end is connected with the radiator and whose another end is connected with the first flow passage at a downstream from the branched point of the second flow passage, a regulating valve on the first flow passage for regulating a flow volume of the coolant in the radiator, and a pump on the first flow passage for circulating the coolant through the engine and/or the radiator. The regulating valve is configured to flows the coolant from the radiator to the first flow passage when it is opened. The apparatus has a simple circulation flow path, and thereby appropriate cooling can be done by regulating the flow volume.
    Type: Application
    Filed: December 25, 2012
    Publication date: February 26, 2015
    Inventor: Mitsuru Iwasaki
  • Publication number: 20150053778
    Abstract: A thermostat device (1) for a cooling system in a motor vehicle, includes an inlet duct (3) to receive cooling fluid that is circulated through the combustion engine of the motor vehicle, an inlet opening (17) to receive cooling fluid from a pilot line in the cooling system, a first and second outlet duct (5a, 5b); an axially displaceable valve rod (11), on which a valve body (10) is secured; a temperature-dependent activating element (14) of a wax which is arranged to influence the displacement position of the valve rod in dependence upon the temperature of the cooling fluid that is received via the inlet opening (17); and the inlet opening is connected with the second outlet duct (5b) via a connecting duct (18) that extends in an axial direction through the valve rod. Also a cooling system including such a thermostat device.
    Type: Application
    Filed: March 25, 2013
    Publication date: February 26, 2015
    Applicant: Scania CV AB
    Inventor: Fredrik Uhman
  • Publication number: 20150056530
    Abstract: A fuel cell is used for generating driving energy for a vehicle. The reserve-tank inlet valve is located between a suction side of the coolant pump and a position in the coolant circuit at which a pressure of the coolant controlled by the reserve-tank inlet valve is an intermediate value between a discharge pressure of the coolant pump and a suction pressure of the coolant pump during an operation of the coolant pump. Even if the fuel cell is stopped generating electric power, the coolant pump is made continue operating even when the vehicle is traveling in a case that a coolant temperature exceeds a predetermined temperature. The coolant pump is made stop rotating after the coolant temperature becomes lower than or equal to the predetermined temperature.
    Type: Application
    Filed: April 4, 2013
    Publication date: February 26, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Michio Nishikawa, Takurou Furukoshi, Shunjiro Kikawa, Keigo Suematsu
  • Patent number: 8960562
    Abstract: A transmission fluid circuit includes a transmission, a cooler, and a valve. The transmission receives and expels a fluid. The cooler receives and expels the fluid to the transmission. The valve directs the flow of fluid received from the transmission to one of the transmission and the fluid cooler. The valve includes a housing, a spool and an actuator. The housing defines a cavity. The spool is movable longitudinally in the cavity between a first position and a second position to direct the flow of the fluid from the cavity to the cooler or the transmission. The actuator is operatively connected to the spool and includes a smart material which is activated in response to the temperature of the fluid in the cavity having at least a first temperature and deactivated in response to the fluid in the cavity having a sufficient number of degrees less than the first temperature.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: February 24, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Vijay A. Neelakantan, Paul G. Otanez, Shushan Bai
  • Publication number: 20140374495
    Abstract: A valve includes a housing including a plurality of ports including an inlet port in communication with a radiator. The valve includes a cylinder located in the housing that includes a plurality of apertures and a fail safe opening. The cylinder is moveable such that one of the plurality of apertures can be aligned with one of the plurality of ports of the housing to determine a flow of a fluid through the valve. The valve includes a moveable feature moveable with and relative to the cylinder, and the moveable feature covers the fail safe opening of the cylinder when a temperature of the fluid flowing through the valve is below a threshold temperature.
    Type: Application
    Filed: February 20, 2013
    Publication date: December 25, 2014
    Inventor: David S. Malone
  • Patent number: 8910489
    Abstract: A heat pump system for a vehicle includes a water cooled condenser that uses a coolant as a heat exchange media and uses waste heat generated from a motor and an electronic device to improve heating performance, efficiency, and dehumidifying performance. A control method is also described.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: December 16, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Hyun Choi, Jae Yeon Kim, Yong Woong Cha, Wan Je Cho, Jungha Park, Jaesan Kim, Man Hee Park, Yong Lee
  • Patent number: 8893979
    Abstract: A thermo-element having incorporated in a case a heat expansion body which expands and contracts according to a change in temperature includes: a piston disposed along the axis direction within the case, protruding outward from the opening on one end side of the case, and advancing and receding as the hear expansion body expands and contracts; a guide member disposed within the case and which slidably holds the piston; and a first valve element fitted to an outside portion of the case, in the side of the case, and opening and closing a fluid flow path. A fit-in section of the first valve element and insertion sections of the guide member inserted within the case are displaced from each other in the axis direction and the radial direction of the case.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: November 25, 2014
    Assignee: Nippon Thermostat Co., Ltd.
    Inventor: Fumito Kusakabe
  • Publication number: 20140224891
    Abstract: A vehicular coolant control valve configured so that the opened state thereof can be switched between a state allowing a normal amount of fluid to pass and a state allowing a lesser amount of fluid to pass. The control valve includes a valve body having a magnetic body and controlling fluid flow, a valve seat constituting a fluid flow channel and coming into contact with the valve body to close the flow channel, a solenoid magnetically maintaining a contact state between the valve body and valve seat, and an urging mechanism urging the valve body opposite to a flow direction of the fluid. The valve body includes a first valve body maintaining a contact state with the valve seat when the solenoid is excited and a second valve body allowing passage of a small amount of the fluid when the first valve body is in contact with the valve seat.
    Type: Application
    Filed: October 24, 2012
    Publication date: August 14, 2014
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Masanobu Matsusaka, Tadayoshi Sato, Naoto Yumisashi
  • Patent number: 8800883
    Abstract: An actuator device including: a case housing an expandable material, a moving part that can move in translation as a result of the expansion and/or contraction of the expandable material, and a heater to heat the expandable material. The device also includes: a position sensor which measures the current position of the aforementioned moving part; and a positioner to position the moving part, including a controller acting on the above-mentioned heater according to the current measured position.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: August 12, 2014
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Bernard Guilhamat, Sebastien Dauve, Jonathan Fernandez, Florent Marquet
  • Publication number: 20140158784
    Abstract: A plug-in hybrid electric vehicle has an internal combustion engine with a coolant outlet connected to a coolant inlet of a fuel operated heater and wherein a coolant outlet of the fuel operated heater is connected to a coolant inlet of an HVAC heater, a coolant outlet of the HVAC heater further being connected to a coolant inlet of the internal combustion engine. The vehicle also has a temperature sensor at the coolant outlet of the internal combustion engine and a temperature sensor at the coolant outlet of the fuel operated heater. The vehicle has a three way valve arranged between the coolant outlet of the HVAC heater and the coolant inlet of the internal combustion engine such that there is a connection between the coolant outlet of the HVAC heater and the coolant inlet of the fuel operated heater, the connection bypassing the internal combustion engine.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 12, 2014
    Applicant: V2 Plug-in Hybrid Vehicle Partnership Handelsbolag
    Inventors: Thomas Lundberg, Ahmed El-Bahrawy, Barne Corneliusson
  • Publication number: 20140103124
    Abstract: A control method of an electrical thermostat that includes an operating heater heating wax so as to operate an operating valve that may be disposed to close a coolant passage according to an exemplary embodiment of may include detecting a coolant temperature of coolant circulating a coolant passage, determining whether the coolant temperature may be included in a predetermined heating temperature range, performing a coolant heating mode by supplying a predetermined level of power to the operating heater for a predetermined time, if the coolant temperature may be within the heating temperature range, and stopping the coolant heating mode in a condition that the operating valve may be closed.
    Type: Application
    Filed: December 28, 2012
    Publication date: April 17, 2014
    Applicants: Hyundai Motor Company, Inzicontrols Co., Ltd., Kia Motors Corporation
    Inventors: Philgi Lee, Gyuhwan Kim, Jae Suk Park, Yong Jeong Kim
  • Patent number: 8690072
    Abstract: A valve including a body and a plug is disclosed. The body has a pair of ports and a tubular structure having a side wall and an open end and defining interiorly a first subchamber communicating with one port. The wall has an opening. The body defines a second subchamber communicating with the other port, extending around the wall and beyond the end to communicate with the end and the opening. The plug has an opening, is mounted to the structure and telescopes between first and second positions. At the second position, the plug is disposed at least partly in the second subchamber and the valve defines, between the ports: a first flow path through the wall opening; and a second flow path through the open end of the structure, via the plug opening. At the first position, the plug and structure restrict flow through the first and second paths.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: April 8, 2014
    Assignee: Dana Canada Corporation
    Inventors: Yuri Peric, Doug Vanderwees
  • Publication number: 20140034740
    Abstract: A fail-safe engine coolant thermostat includes a body having a bore with an inlet and an outlet. A thermal actuator capable of extended and retracted positions due to coolant temperature is disposed in the body. A valve plate is pivotally mounted in the body to open and close fluid flow through the body. A connecting member is coupled between the thermal actuator and the valve plate to pivot the valve plate to the closed flow position. A pivot connection of the valve plate to the body is diametrically off center to the valve plate to pivot to the fluid flow open position under coolant fluid flow pressure unless the thermal actuator, at cold fluid temperatures, pivots the value plate to the closed position through the connecting member. An adjustment is provided for the connecting member to enable adjustment of the valve plate to the full closed position.
    Type: Application
    Filed: October 14, 2013
    Publication date: February 6, 2014
    Inventor: Darrel R. Sand
  • Publication number: 20140027522
    Abstract: A thermostat structure may include a valve configured to open or close a flow path through which a coolant flows, and a spring configured to elastically bias the valve to control a flow rate of the coolant flowing to an engine by automatically opening or closing the valve according to a change in a temperature of the coolant, wherein an upper portion of the spring may be coupled to a valve guide configured to support the valve, and may be formed in a shape of a semi-beehive having a uniform radius at a portion coupled to the valve guide and having an increasing radius as being closer to the lower portion thereof.
    Type: Application
    Filed: December 10, 2012
    Publication date: January 30, 2014
    Applicants: Kia Motors Corporation, Hyundai Motor Company
    Inventor: Philgi LEE
  • Publication number: 20140000862
    Abstract: A cooling system for an internal combustion engine in a vehicle comprises a variable-speed coolant pump for providing a coolant flow to a plurality of heat-transfer nodes coupled in a coolant loop with the pump. Each node generates a flow rate request based on an operating state of the node. The coolant loop is configurable to a plurality of restriction states. A pump controller receives the flow rate requests, maps each respective flow request to a pump flow rate that would produce the respective pump flow rate request, selects a largest mapped pump flow rate, identifies a restriction state in which the coolant loop is configured, selects a pump speed in response to the selected flow rate and the identified restriction state, and commands operation of the pump to produce the selected pump speed.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 2, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Osama A. Abihana, Scott M. Robichaud, Scott J. Thompson
  • Publication number: 20140000536
    Abstract: A powertrain cooling system includes a coolant pump and coolant flow passages. A first three-position valve is operatively connected with an outlet of the coolant pump and has a first, a second, and a third position to at least partially establish different coolant flow modes through the coolant flow passages. Coolant flow from the coolant pump is blocked from both the cylinder head and the engine block in a first coolant flow mode when the three-position valve is in the first position. Coolant flow from the coolant pump is provided to the cylinder head and is blocked from the engine block in a second coolant flow mode when the three-position valve is in the second position. Coolant flows from the coolant pump to the engine block and from the engine block to the cylinder head in a third coolant flow mode when the three-position valve is in the third position.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Daniel B. Glassford
  • Patent number: 8561580
    Abstract: In an engine, a block-side flow path for circulating cooling water to cool a cylinder block, and a head-side flow path for circulating cooling water to cool a cylinder head are formed. A head-side outlet temperature of cooling water flowing out of the head-side flow path is adjusted by using a water pump that pressure sends the cooling water to both the block-side flow path and the head-side flow path. A block-side outlet temperature of cooling water flowing out of the block-side flow path is adjusted by a first thermostat that changes a flow amount of the cooling water flowing out of the block-side flow path. The cooling water flowing out of the block-side flow path is used as a heat source of first and second heater cores for heating air.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: October 22, 2013
    Assignees: Denso Corporation, Nippon Soken, Inc.
    Inventors: Nobuharu Kakehashi, Michio Nishikawa, Mitsunobu Uchida
  • Publication number: 20130240634
    Abstract: The invention relates to a thermostat valve for a cooling system of an internal combustion engine with a coolant stoppage function, comprising a first bypass valve element and a second bypass valve element, a main valve element to be arranged in a counterpart to a connection to a coolant radiator, and a crossmember to be arranged between an engine outlet and an engine inlet, which crossmember forms a valve seat for the first bypass valve element and the second bypass valve element, wherein, on its outer side, the crossmember has a collar which forms an axial supporting region for the counterpart and which is loaded in the axial direction by a compression spring, with the result that the collar is forced in the direction of the counterpart.
    Type: Application
    Filed: November 29, 2011
    Publication date: September 19, 2013
    Applicant: BEHR THERMOT-TRONIK GMBH
    Inventor: Andreas Auweder
  • Patent number: 8534569
    Abstract: In a cooling device for a vehicle having a main passage through which coolant water is circulated between the interior of an engine and a radiator 13, a heater passage through which the coolant water is circulated between the interior of the engine and a heater core 15, and a thermostat 18 that operates in response to the temperature of the coolant water and selectively permits and stops circulation of the coolant water in the main passage, the heater passage is used as a heater/bypass passage, which functions also as a bypass passage, through which the coolant medium is circulated without passing through the radiator 13 when the engine warms up. This makes it unnecessary to form a separate bypass passage, thus simplifying the passage configuration.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: September 17, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ryu Hamaguchi
  • Publication number: 20130221116
    Abstract: A cooling water control valve apparatus capable of independently controlling flow rates of cooling water in two lines with a single apparatus for cooling water control and capable of achieving cost reduction. A cooling water control valve apparatus which adjusts a flow rate of cooling water for cooling an object to be cooled includes two inlet ports through which cooling water is introduced, an electrical control valve which is arranged at a first passage communicated with one of the inlet ports and which adjusts a flow rate of cooling water flowing through the first passage with electronic control, and a thermosensitive valve which is arranged at a second passage communicated with the other of inlet ports and which adjusts a flow rate of cooing water flowing through the second passage owing to displacement of a temperature detecting medium with temperature.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 29, 2013
    Applicants: SUZUKI MOTOR CORPORATION, MIKUNI CORPORATION
    Inventors: MINUKI CORPORATION, SUZUKI MOTOR CORPORATION
  • Publication number: 20130213600
    Abstract: A coolant temperature sensor abnormality determination apparatus opens a changeover valve to increase the temperature of a coolant in a heater passageway if the amount of increase of the detected heater inlet coolant temperature value obtained when the intake air amount of an engine becomes equal to or greater than a predetermined value is small. Then, if the amount of increase in the detected heater inlet coolant temperature value after the changeover valve opens is greater than or equal to the predetermined value, the apparatus determines that the heater inlet coolant temperature sensor is normal. If the amount of increase in the detected heater inlet coolant temperature value is smaller than the predetermined value, the apparatus determines that the heater inlet coolant temperature sensor is abnormal.
    Type: Application
    Filed: November 8, 2011
    Publication date: August 22, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tatsuki Saitoh
  • Publication number: 20130175022
    Abstract: A thermal management system for an electric vehicle includes a motor circuit for cooling a motor circuit thermal load, a cabin heating circuit for heating a cabin heater and a battery circuit for managing the temperature of a battery circuit thermal load. All of these circuits can fluidically communicate with each other and a single radiator can cool the fluid from all of these circuits.
    Type: Application
    Filed: September 15, 2011
    Publication date: July 11, 2013
    Inventors: Jonathan King, Rick Rajaie, Richard A. DeVogelaere, Adam J. Naish
  • Patent number: 8469083
    Abstract: A heat exchanger for cooling a liquid has an inlet and an outlet for a liquid to be cooled. A bypass is provided that bypasses the heat exchanger. A valve controls flow of liquid into the heat exchanger or into the bypass. The valve has a valve seat, a valve cone, and at least one spring made of a shape memory material. The at least one spring counteracts a liquid pressure existing in the inlet.
    Type: Grant
    Filed: October 24, 2009
    Date of Patent: June 25, 2013
    Assignee: Mann+Hummel GmbH
    Inventors: Herbert Jainek, Alexander Wöll
  • Publication number: 20130126624
    Abstract: Disclosed is a thermostat device which can both stabilise operation during the initial stages of valve opening, and can stabilise the temperature of a liquid coolant which is circulated in a cooling system circuit. A circular sealing lip (29) is provided on the outer periphery of an approach section (24) of a main valve (21), said approach section being to a cylindrical valve seat (11), and the circular sealing lip is elastically pressure welded to the inner peripheral surface of the cylindrical valve seat (11) when the valve is closed. The circular sealing lip (29) is provided so as to form a waveform having concavity and convexity curving in the drive direction of the main valve (21), due to a thermo-sensitive movable body (31).
    Type: Application
    Filed: July 27, 2010
    Publication date: May 23, 2013
    Inventor: Hee Wan Park
  • Patent number: 8430071
    Abstract: An engine cooling system for a vehicle, and method of operation, includes both an engine driven main coolant pump that may be disengaged by a clutch and an electrically driven auxiliary coolant pump, where each can be used separately or they can be used together to control the amount of coolant flow through the engine cooling system.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: April 30, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Michael H. Carlson, George T Washburn
  • Patent number: 8418931
    Abstract: A system for cooling an engine is described. The system includes a heat exchanger having a first heat exchange portion that removes heat energy from coolant fluid flowing therein, and a second heat exchange portion that removes heat energy from coolant fluid flowing therein; a first thermostat integral to the heat exchanger and fluidically and mechanically coupled to at least one of the first and second heat exchange portions; and a second thermostat, integral to the heat exchanger and fluidically and mechanically coupled to at least one of the first and second heat exchange portions.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: April 16, 2013
    Assignee: Ford Global Technologies, LLC
    Inventor: Robert Hornblower Meyer