With Lubricant Heat Exchange Patents (Class 123/41.33)
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Publication number: 20140150739Abstract: A heat exchanger for a vehicle includes a heat radiating portion including first and second connecting lines formed alternately by stacking a plurality of plates, and receiving first and second operating fluids therethrough that heat-exchange with each other while circulating unmixed through the respective first and second connecting lines, a bifurcating portion connecting an inflow hole for flowing one of the first and second operating fluids with an exhaust hole for exhausting 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 to selectively open one of the connecting lines by expansion and contraction of deformable material so as 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: ApplicationFiled: September 18, 2013Publication date: June 5, 2014Applicants: Kbautotech Co., Ltd., Hyundai Motor CompanyInventors: Jae Yeon Kim, Wan Je Cho, Sangyong Rhee, Hae-Seong Choi, Yong Jeong Kim
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Patent number: 8739756Abstract: A cooling system for an engine assembly includes an engine block that defines a coolant flow passage configured to carry coolant through the engine block. The engine block also defines an oil flow passage configured to carry lubricating oil through the engine block. The oil flow passage at least partially surrounds the coolant flow passage and is sufficiently adjacent to the coolant flow passage so that the lubricating oil flowing in the oil flow passage is cooled by the coolant flowing in the coolant flow passage by heat transfer through the engine block. The engine block may define ridges along the coolant flow passage that increase a surface area of the coolant flow passage to increase heat transfer capability. The engine block may define two such coolant flow passages, a first and a second coolant flow passage, positioned so that the oil flow passage passes between the coolant flow passages.Type: GrantFiled: March 23, 2011Date of Patent: June 3, 2014Assignee: GM Global Technology Operations LLCInventors: Naser I. Hineiti, Dan L. Alden, Akram R. Zahdeh, Brian D. Kaminski
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Patent number: 8695562Abstract: A cooling system for an engine assembly includes an engine block that defines a coolant flow passage configured to carry coolant through the engine block. The engine block also defines an oil flow passage configured to carry lubricating oil through the engine block. The oil flow passage at least partially surrounds the coolant flow passage and is sufficiently adjacent to the coolant flow passage so that the lubricating oil flowing in the oil flow passage is cooled by the coolant flowing in the coolant flow passage by heat transfer through the engine block. The engine block may define ridges along the coolant flow passage that increase a surface area of the coolant flow passage to increase heat transfer capability. The engine block may define two such coolant flow passages, a first and a second coolant flow passage, positioned so that the oil flow passage passes between the coolant flow passages.Type: GrantFiled: March 23, 2011Date of Patent: April 15, 2014Assignee: GM Global Technology Operations LLCInventors: Naser I. Hineiti, Dan L. Alden, Akram R. Zahdeh, Brian D. Kaminski
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Patent number: 8696394Abstract: A marine propulsion system comprises an internal combustion engine, a cooling circuit carrying cooling fluid that cools the internal combustion engine, a sump holding oil that drains from the internal combustion engine, and a heat exchanger receiving the cooling fluid. The oil that drains from the internal combustion engine to the sump passes through and is cooled by the heat exchanger.Type: GrantFiled: July 27, 2011Date of Patent: April 15, 2014Assignee: Brunswick CorporationInventors: Gregg D. Langenfeld, Ryan G. Bonde, Scott G. Ahlswede
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Patent number: 8689741Abstract: The present invention features a thermal management system for a hybrid electric vehicle. Such a system includes a heater core supplies heat for heating the vehicle's interior by heat exchange between a coolant and air of the vehicle's interior, a coolant line fluidly coupling an engine and heater core so the coolant being circulated by a coolant pump passes there through. A bypass valve is located in the coolant line in proximity to the engine and is selectively opened and closed according to the on/off state of the engine and so that the coolant does not pass through the engine but passes through only the heater core in the engine off state. Such a system includes a heat exchanger fluidly coupled to another heat source so the coolant is heated by the heat exchanger and supplied to the heater core when in the off state.Type: GrantFiled: November 8, 2010Date of Patent: April 8, 2014Assignees: Hyundai Motor Corporation, Kia Motors CorporationInventors: Hee Sang Park, Ho Seok Jeon, Hyun Kim, June Kyu Park, Jung Hwan Yun, Jun Mo Ku, Sang Ha Kim
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Patent number: 8678078Abstract: Transmission fluid is heated through a heat exchanger effective to transfer heat between transmission fluid of a transmission assembly and an exhaust gas feed stream of an engine.Type: GrantFiled: May 10, 2011Date of Patent: March 25, 2014Assignee: GM Global Technology Operations LLCInventors: Farzad Samie, Richard W. Carlson, Thomas A. Robertson, Jr.
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Patent number: 8640657Abstract: An oil supply system for an internal combustion engine includes an oil pump, a heat exchanger, an oil feed line and two oil outlet lines, for conveying the oil from the oil pump through the oil feed line to the heat exchanger and from the latter through the two oil outlet lines. In a system of this type, there is provision for the internal combustion engine to be configured as a piston engine and for the heat exchanger to be configured as a water/oil heat exchanger, and for one oil outlet line to be connected to oil spray nozzles of the piston engine and for the other oil outlet line to be connected to a main oil line of the piston engine. An oil supply system of this type is distinguished by its simple design and functionality, and permits optimum cooling and lubrication of the relevant components of the engine.Type: GrantFiled: June 7, 2011Date of Patent: February 4, 2014Assignee: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventors: Werner Huhn, Peter Krauss
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Patent number: 8631772Abstract: A method for controlling the temperature of transmission fluid in a motor vehicle includes operating in an automatic transmission fluid cooling mode, a heater priority mode entered by disabling automatic transmission fluid heating, and an automatic transmission fluid heating mode which includes sending hot engine coolant to a heat exchanger for heating the automatic transmission fluid by transferring heat from the hot engine coolant to the automatic transmission fluid. The method switches to from a heater priority mode to a transmission heating mode base on a number of sensed conditions including sensed automatic fluid transmission temperature. The method also includes an automatic transmission fluid temperature regulating mode including measuring an automatic transmission fluid temperature and switching between the cooling mode and the heating mode based measured temperature.Type: GrantFiled: May 21, 2010Date of Patent: January 21, 2014Assignee: Ford Global Technologies, LLCInventors: James Thomas Gooden, Jianping Zhang, Steven Keith Plumb, David Spuller
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Publication number: 20140000536Abstract: 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: ApplicationFiled: June 29, 2012Publication date: January 2, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Daniel B. Glassford
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Publication number: 20130327287Abstract: A heat exchanger for a vehicle includes: a heat releasing unit that is stacked with a plurality of plates and that forms connection flow channels to intersect at the inside thereof to inject other working fluids and that exchanges a heat of working fluids that pass through the respective connection flow channels, a bypass unit that is formed in the heat releasing unit to form a plurality of inflow holes and exhaust holes that inject and exhaust the working fluids to the respective connection flow channels and that connects the inflow hole and the exhaust hole that is connected to one of the respective connection flow channels, and a valve unit that is mounted within the heat releasing unit to correspond to the inflow hole that forms the bypass unit and that is selectively opened or closed using a deformation force of bimetal that is deformed according to a temperature of a working fluid that is injected into the inside thereof to inject the working fluid into the heat releasing unit and the bypass unit.Type: ApplicationFiled: December 5, 2012Publication date: December 12, 2013Applicant: Hyundai Motor CompanyInventors: Jae Yeon Kim, Wan Je Cho
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Patent number: 8601997Abstract: An engine assembly includes a water pump assembly and an oil cooler mounted to the water pump assembly. The water pump assembly includes a rear housing which at least partially defines at least one water passage to fluidly connect the water pump assembly to the oil cooler. A surface is defined by the rear housing and corresponds to a sealing surface on the engine block such that the oil cooler and the water pump assembly are fluidly sealed to the engine block.Type: GrantFiled: November 9, 2010Date of Patent: December 10, 2013Assignee: GM Global Technology Operations LLCInventors: Gregory L. Cockerill, Paul A. Stade, David A. Gorajek, Chris Springer
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Patent number: 8511260Abstract: An arrangement for a supercharged combustion engine for preventing ice formation in a cooler. A first cooling system with a circulating coolant. A second cooling system with a circulating coolant which during normal operation of the combustion engine is at a lower temperature than the coolant in the first cooling system. The cooler in which a gaseous medium for the engine and which contains water vapor is intended to be cooled by the coolant in the second cooling system. A heat exchanger. A valve which can be placed in a first position wherein coolant from at least one of the cooling systems is prevented from flowing through the heat exchanger and in a second position wherein coolant from both of the cooling systems flows through the heat exchanger so that the coolant in the second cooling system is warmed by the coolant in the first cooling system.Type: GrantFiled: February 17, 2009Date of Patent: August 20, 2013Assignee: Scania CV ABInventors: Zoltan Kardos, Erik Söderberg
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Publication number: 20130167785Abstract: An assembly is provided herein. The assembly includes a cylinder block and a cooler coupled to the cylinder block positioned in a valley between two cylinder banks, the cooler including a lubricant passage having a first section configured to flow lubricant in an opposing direction to the flow of lubricant through a second section, the first and second sections each extending longitudinally from a first peripheral cylinder to a second peripheral cylinder in one of the cylinder banks.Type: ApplicationFiled: January 3, 2012Publication date: July 4, 2013Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Christopher K. Palazzolo, Darren Sipila, Jagadish Sorab, Chuck Raymond Kvasnicka, Michael Edward Solski
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Publication number: 20130152882Abstract: A thermal management unit for a vehicle powertrain component. The thermal management unit is designed to maintain the operating temperature of the vehicle component within a relatively small, ideal temperature range. The thermal management unit includes a three-way valve and temperature sensor that uses the temperature of a lubricant used by the component itself to configure the valve such that lubricant having the desired temperature is passed to the component.Type: ApplicationFiled: December 19, 2011Publication date: June 20, 2013Applicant: CHRYSLER GROUP LLCInventor: Kenneth J. Potter
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Patent number: 8463495Abstract: A method of operating a vehicle including an engine, a transmission, an exhaust gas heat recovery (EGHR) heat exchanger, and an oil-to-water heat exchanger providing selective heat-exchange communication between the engine and transmission. The method includes controlling a two-way valve, which is configured to be set to one of an engine position and a transmission position. The engine position allows heat-exchange communication between the EGHR heat exchanger and the engine, but does not allow heat-exchange communication between the EGHR heat exchanger and the oil-to-water heat exchanger. The transmission position allows heat-exchange communication between the EGHR heat exchanger, the oil-to-water heat exchanger, and the engine. The method also includes monitoring an ambient air temperature and comparing the monitored ambient air temperature to a predetermined cold ambient temperature.Type: GrantFiled: December 1, 2010Date of Patent: June 11, 2013Assignee: GM Global Technology Operations LLCInventors: Brian L. Spohn, George M. Claypole, Richard D Starr
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Patent number: 8453611Abstract: The present invention is an engine, including two banks of cylinders in a flat, opposed cylinder arrangement and a crankshaft having a plurality of paired throws, the two throws of each respective pair of throws being disposed adjacent to each other and coplanar with respect to each other.Type: GrantFiled: May 16, 2008Date of Patent: June 4, 2013Assignee: Schrick, Inc.Inventors: Michael J. Fuchs, Steven M. Weinzierl
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Patent number: 8402929Abstract: A system for cooling an engine on a vehicle without a coolant based intercooler and intermediate duct, the system including an air-to-oil radiator system configured to cool oil that flows through an engine, an air-to-air radiator system configured to cool air that flows through the engine and further configured to operate in conjunction with the air-to-oil radiator system to provide cool air for use with the air-to-oil radiator system, and a slow flow coolant radiator configured to cool a coolant provided to cool the engine and further provided to operate in conjunction with the air-to-oil radiator system. A method for cooling oil in an engine without a coolant based intercooler and intermediate duct is also disclosed.Type: GrantFiled: September 16, 2008Date of Patent: March 26, 2013Assignee: General Electric CompanyInventors: Gregory Alan Marsh, Mahesh Chand Aggarwal, Kendall Roger Swenson
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Patent number: 8336515Abstract: An oil cooler oil pump assembly for an internal combustion engine has an oil cooler and an oil pump configured to draw in oil from the oil pan and convey it to the oil cooler. The oil cooler is arranged on the exterior side of the oil pan. The oil pump is integrated into the oil pan, wherein oil pump and oil cooler are immediately or closely coupled to one another by a connecting pipe.Type: GrantFiled: August 12, 2009Date of Patent: December 25, 2012Assignee: Mann + Hummel GmbHInventors: Herbert Jainek, Thomas Jessberger, Axel Kravanja
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Patent number: 8316806Abstract: An arrangement for cooling oil in a gearbox in a vehicle which is powered by a combustion engine, the arrangement including an oil cooler, an oil system configured to circulate oil between the gearbox and the oil cooler, and a coolant circuit configured and operable to lead coolant to the oil cooler. The coolant circuit includes a radiator element for cooling the coolant and a line to lead the cooled coolant from the radiator element to the oil cooler. The coolant circuit has a flow-regulator to regulate the coolant flow through the radiator element for imparting to the coolant a temperature which makes possible a desired cooling of the oil in the oil cooler.Type: GrantFiled: September 29, 2008Date of Patent: November 27, 2012Assignee: Scania CV AB (Publ)Inventors: Erik Söderberg, Zoltan Kardos
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Patent number: 8312847Abstract: The present apparatus includes a cross-flow filtration fuel separator having a separation membrane separating by permeation, fuel from lubricating oil flowing in an oil circuit of an internal combustion engine; a vapor-liquid separator separating the fuel separated by the fuel separator, into a gas component and a liquid component; and a fuel collector (canister) collecting the gas component of the fuel separated by the vapor-liquid separator.Type: GrantFiled: March 30, 2009Date of Patent: November 20, 2012Assignee: Toyota Boshoku Kabushiki KaishaInventor: Yasuhiro Saito
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Patent number: 8312857Abstract: The invention relates to an oil pan made of thermoplastic for an internal combustion engine, said oil pan comprising integrated oil cooler and an integrated oil filter, a straight connection opening being provided between the oil cooler and the oil filter.Type: GrantFiled: August 27, 2008Date of Patent: November 20, 2012Assignee: Mann + Hummel GmbHInventors: Thomas Jessberger, Roman Eder
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Publication number: 20120285402Abstract: A controller, for use in a power plant having a liquid cooling system and an air cooling system, comprising one or more inputs, configured to receive a signal from at least one deposit sensor, wherein the signal from the deposit sensor is indicative of deposits in the liquid cooling system; and one or more processors, configured to process the signal received from the deposit sensor to control the air cooling system.Type: ApplicationFiled: May 1, 2012Publication date: November 15, 2012Applicant: ROLLS-ROYCE PLCInventor: Peter FW FOSTER
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Publication number: 20120240880Abstract: A cooling system for an engine assembly includes an engine block that defines a coolant flow passage configured to carry coolant through the engine block. The engine block also defines an oil flow passage configured to carry lubricating oil through the engine block. The oil flow passage at least partially surrounds the coolant flow passage and is sufficiently adjacent to the coolant flow passage so that the lubricating oil flowing in the oil flow passage is cooled by the coolant flowing in the coolant flow passage by heat transfer through the engine block. The engine block may define ridges along the coolant flow passage that increase a surface area of the coolant flow passage to increase heat transfer capability. The engine block may define two such coolant flow passages, a first and a second coolant flow passage, positioned so that the oil flow passage passes between the coolant flow passages.Type: ApplicationFiled: March 23, 2011Publication date: September 27, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Naser I. Hineiti, Dan L. Alden, Akram R. Zahdeh, Brian D. Kaminski
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Patent number: 8267052Abstract: An engine which can easily cool oil within an oil circulation path. The oil circulation path includes an oil reservoir, an oil pump for sucking oil from the oil reservoir so as to pressurize the oil, an oil supplying oil passage conducting the oil from the oil pump to each of lubrication points, and an oil returning oil passage for returning the oil to the oil reservoir from the lubrication points. The cooling fluid path includes a cooling fluid pump, and a cooling fluid passage for supplying the cooling fluid, which conducts the cooling fluid from the cooling fluid pump to the cooling points. The oil passage and the cooling fluid passage come into contact with each other at one or more points of the engine main body so as to be heat exchangeable via a partition wall.Type: GrantFiled: December 30, 2008Date of Patent: September 18, 2012Assignee: Kawasaki Jukogyo Kabushiki KaishaInventor: Kiyohito Takano
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Patent number: 8267054Abstract: A fluid cooler for a fluid, such as oil, associated with an engine of a motorcycle or other vehicle, includes a housing, which may be tubular. In one embodiment, the housing includes a first vent for air intake located in a first end cap of the housing, and a second vent for air exhaust located in a second end cap. The second vent may have a cross sectional area approximately equal to a cross sectional area of the first vent. Within the housing, a fluid passageway contains a flow path of the fluid associated with the engine. A fan moves air past the fluid passageway. By the design of the cooler and its mounting orientation on the vehicle, in a preferred embodiment, substantially no air passes by the fluid passageway when the fan is not operating regardless of whether the vehicle is moving.Type: GrantFiled: December 4, 2008Date of Patent: September 18, 2012Inventor: George Erik McMillan
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Patent number: 8256496Abstract: The invention relates to an air diverter for a vehicle cooling system. There is a need for an improved vehicle cooling system. An air diverter is provided for a vehicle cooling system having a radiator, a fan for moving air through the radiator and a cooling unit positioned in front of the radiator with respect to air moving through the radiator. The fan is surrounded by a fan shroud. The air diverter includes a collector and a conduit. The collector is positioned between the cooling unit and the radiator. The collector receives a portion of air which passes through the cooling unit. The conduit extends around an edge of the radiator and communicates air from the collector to the interior of the fan shroud while bypassing the radiator.Type: GrantFiled: December 6, 2007Date of Patent: September 4, 2012Assignee: Deere & CompanyInventors: Adam Joe Shuttleworth, Matthew Robert Oliver, Ronnie Franklin Burk, Dick J. Goering
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Patent number: 8205709Abstract: A system for heating and cooling the transmission fluid including a heat exchanger adapted to transfer heat between an engine coolant and a transmission fluid and a controller for controlling a valve to place the system into a select one of three modes including a heater core priority mode wherein no engine coolant flows to the heat exchanger, a heating mode wherein hot engine coolant flows directly to the heat exchanger from the engine and a cooling mode wherein cool engine coolant flows directly to the heat exchanger from the radiator, whereby the transmission fluid is heated in an efficient manner with minimal impact on passenger compartment heating.Type: GrantFiled: May 21, 2010Date of Patent: June 26, 2012Assignee: Ford Global Technologies, LLC.Inventors: James Thomas Gooden, Hamish Macwillson, Dragos Catalin Iliescu
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Patent number: 8186328Abstract: The present invention relates to a cooling mechanism (1), in particular for cooling oil in a motor vehicle, with a housing (2) having a bracket (3), by means of which housing (2) the cooling mechanism (1) is connected to an internal combustion engine, a transmission fluid cooler (10), and an engine oil cooler (7). Pertinent to the invention is that the cooling mechanism (1) is designed in a sandwich-type manner having an intermediate module (11) positioned between the engine oil cooler (7) and the transmission fluid cooler (10), which intermediate module (11) has at least one supply/removal assembly (12) that communicates with the engine oil cooler (7) and has corresponding supply/removal lines or connections.Type: GrantFiled: July 2, 2009Date of Patent: May 29, 2012Assignee: Mahle International GmbHInventors: Ralf Kiemlen, Phillip Lang, Ralf Zink
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Patent number: 8181610Abstract: A cooling system for internal combustion engines provides directed flows of heated or cooled coolant to various engine components and/or accessories as needed. By providing directed flows, the overall coolant flow volume is reduced from that of conventional cooling systems, allowing for a smaller capacity water pump to be employed which results in a net energy savings for the engine. Further, by reducing the overall coolant flow volume, the hoses and/or galleries required for the directed flows are reduced from those of conventional cooling systems, providing a cost savings and a weight savings. Finally, by preferably employing an impellor type water pump, the expense of an electric water pump and its associated control circuitry can be avoided. The direct flows are established by a multifunction valve which, in a preferred implementation, comprises a two-plate valve wherein each plate is operated by a wax motor.Type: GrantFiled: May 8, 2007Date of Patent: May 22, 2012Assignee: MAGNA Powertrain, Inc.Inventors: Pasquale Dipaola, Malcolm J. Clough, Robert Scotchmer
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Patent number: 8118001Abstract: A cooling system for a water-cooled internal combustion engine includes a coolant flow circuit and a coolant return passage. The coolant flow circuit includes a water pump, a water jacket having a plurality of serially connected flow passages, an oil cooler, a radiator, and a pressure-regulating valve for discharging coolant to a reservoir tank when pressure of the coolant in the coolant flow circuit reaches a predetermined target value. The coolant return passage supplies coolant from the reservoir tank to the coolant flow circuit via a check valve, which only allows coolant to flow in one direction from the reservoir tank to the coolant flow circuit.Type: GrantFiled: July 11, 2008Date of Patent: February 21, 2012Assignee: Honda Motor Co., Ltd.Inventor: Mitsuru Kowada
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Patent number: 8096347Abstract: A cooler block for an agricultural tractor comprising a cooler assembly mounted on a radiator and coupled to the radiator by upper and lower linkages. The cooler assembly can be moved between a first position in which the cooler assembly lies parallel to the radiator and a second position in which the cooler assembly is inclined relative to the radiator. The cooler assembly is pivotable about a pivot in the upper linkage that is itself movable relative to the radiator. The lower linkage allows the entire cooler assembly to rise and the pivot of the upper linkage to move away from the radiator as the cooler assembly is pivoted from the first to the second position. A detent is incorporated into one of the two linkages to retain the cooler assembly in the second position.Type: GrantFiled: November 30, 2007Date of Patent: January 17, 2012Assignee: CNH America LLCInventors: William P. Starkey, Timothy Oldland, Todd Richard
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Patent number: 8057687Abstract: A liquid filter heat exchanger unit has a heat exchanger having an inlet through which a liquid is supplied to the heat exchanger and a drain through which the liquid exits after having passed through the heat exchanger. The unit also has a liquid filter with a filter housing and a filter element exchangeably arranged in a receiving chamber, wherein the liquid is supplied through the drain of the heat exchanger to an unfiltered side of the filter element. A bypass connects an inlet passage for supplying the liquid to be filtered to the receiving chamber in the filter housing. A switching member opens and closes the bypass. The switching member is formed by the filter element such that the bypass is closed when the filter element is inserted in the filter housing and is opened when the filter element is removed from the filter housing.Type: GrantFiled: March 8, 2006Date of Patent: November 15, 2011Assignee: Mann + Hummel GmbHInventor: Herbert Jainek
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Patent number: 8028522Abstract: The invention relates to a cooling system for a motor vehicle comprising a first heat exchanger (1), in particular, embodied in the form of a main cooler for cooling a first liquid coolant (3) of an internal combustion engine (2) by means of an air flow coming from the ambient air and a second heat exchanger (7, 13, 407, 415) for cooling gases introduceable into the internal combustion engine, in particular, exhaust gases and/or charge air, wherein the second heat exchanger (7, 13, 407, 415) is coolable by the an air flow coming from the ambient air and is spatially separated from the main cooler (1).Type: GrantFiled: September 6, 2006Date of Patent: October 4, 2011Assignee: Behr GmbH & Co. KGInventors: Klaus Irmler, Ulrich Maucher
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Patent number: 8020524Abstract: An exhaust heat recovery apparatus includes an evaporator and a condenser. The evaporator and the condenser form an operation medium circuit such that an operation medium circulates through the evaporator and the condenser. The evaporator has tubes and is disposed in a duct part through which an exhaust gas generated from an engine flows. The condenser is disposed in a heated fluid circuit through which a heated fluid flows for heating the heated fluid by condensation of the operation medium. The heated fluid circuit is separate from an engine coolant circuit through which an engine coolant for cooling the engine flows. The evaporator further has a fin between the tubes. The fin is provided with an operation force reducing portion that is capable of reducing an operation force applied to the fin due to a thermal expansion difference between the tubes, which are exposed to the exhaust gas.Type: GrantFiled: July 18, 2008Date of Patent: September 20, 2011Assignee: Denso CorporationInventor: Masashi Miyagawa
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Patent number: 7891333Abstract: An electric motor is cooled by an air flow without restricting the degree of freedom in the arrangement of an oil cooler and an oil filter by utilizing a front face of a front portion of an engine body to arrange the electric motor. The engine includes an oil cooler, an oil filter, and an starter motor for driving a crankshaft to rotate. The oil cooler and the starter motor are disposed on a front face, which is directed in an advancing direction of the vehicle, of a front portion of a lower block which forms an engine body. The oil filter is attached to an attachment seat provided on a side face of the front portion which is directed in the sideward direction. A communication oil path for communicating the oil cooler and the oil filter with each other is provided in the inside of the front portion.Type: GrantFiled: March 25, 2008Date of Patent: February 22, 2011Assignee: Honda Motor Co., Ltd.Inventors: Koji Terada, Shinya Wakabayashi
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Patent number: 7845316Abstract: An internal combustion engine has a crankcase, a crankshaft, a cylinder block, at least one piston, a cylinder head assembly, and a cooling system for cooling at least a portion of the engine. The cooling system has a first cooling jacket for cooling a first side of the cylinder block, a second cooling jacket for cooling a second side of the cylinder block, and a cylinder head cooling jacket for cooling the cylinder head assembly. A coolant inlet and a coolant outlet fluidly communicate with the first and second cooling jackets respectively. Coolant flowing in the cooling system flows from the coolant inlet to the first cooling jacket, then to the cylinder head cooling jacket, then to the second cooling jacket, and finally to the coolant outlet. A cylinder block, an engine cooling system, and a method of cooling an engine are also disclosed.Type: GrantFiled: December 19, 2007Date of Patent: December 7, 2010Assignee: BRP-Powertrain GmbH & Co KGInventors: Markus Hochmayr, Jean-Charles Pouillard, Stefan Leiber, Anton Pichler, Rudolf Kusel, Johann Neuboeck
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Patent number: 7810457Abstract: A system and method for controlling the temperature of the engine oil of an internal combustion engine of a motor vehicle are provided. The system includes an engine oil circuit for controlling the temperature of the engine oil, which engine oil circuit includes the internal combustion engine and a coolant/engine-oil heat exchanger; and a coolant circuit for controlling the temperature of the internal combustion engine, which coolant circuit in a main branch, includes the internal combustion engine, a coolant cooler and a first coolant pump and, in an auxiliary branch downstream of the coolant cooler, includes the coolant/engine-oil heat exchanger and a second coolant pump. The heat of the engine oil can thereby be dissipated via the coolant/engine-oil heat exchanger to the coolant and further via the coolant cooler to the environment.Type: GrantFiled: December 2, 2005Date of Patent: October 12, 2010Assignee: Daimler AGInventors: Timo Blassnitz, Oliver Wiech
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Patent number: 7779791Abstract: The invention relates to a circuit arrangement (K), with a low-temperature coolant circuit (1) for the cooling of charge air on a motor vehicle with a charging device, comprising a charge air/coolant cooler (2). A temperature sensor (4) is provided at the exit of the coolant from the charge air/coolant (2), or directly thereafter, for the measurement of the coolant exit temperature. The invention further relates to a method for operation of such a circuit arrangement (K).Type: GrantFiled: December 15, 2004Date of Patent: August 24, 2010Assignees: Behr GmbH & Co. KG, Behr Thermot-Tronik GmbHInventors: Thomas Holzbaur, Rolf Müller, Eberhard Pantow, Sarah Parmentier, Eike Willers
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Patent number: 7770553Abstract: In order to provide a handheld work machine that does not require expensive start circuitry for the critical start-up phase of the combustion engine, and in which nevertheless the required constant supply voltage for the engine is present in order to achieve optimum starting behavior, a handheld work machine is provided with at least one combustion engine which in operation requires a supply voltage, and with a voltage generator that supplies a generator voltage that depends on the rotary speed of the combustion engine, which generator voltage is used to generate the supply voltage, wherein the handheld work machine is electrically connected to an additional voltage source that prior to starting the combustion engine provides the required supply voltage that at this point in time is not yet present.Type: GrantFiled: October 19, 2004Date of Patent: August 10, 2010Assignee: DOLMAR GmbHInventors: Ernst Gorenflo, Carsten Ziegs
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Publication number: 20100162973Abstract: The present invention provides an engine which can easily cool oil within an oil circulation path The oil circulation path includes an oil reservoir, an oil pump for sucking oil from the oil reservoir so as to pressurize, an oil supplying oil passage conducting the oil from the oil pump to each of lubrication points, and an oil returning oil passage for returning the oil to the oil reservoir from the lubrication points. The cooling fluid path includes a cooling fluid pump, and a cooling fluid passage for supplying the cooling fluid, which conducts the cooling fluid from the cooling fluid pump to the cooling points. The oil passage and the cooling fluid passage come into contact with each other at one or more points of the engine main body so as to be heat exchangeable via a partition wall.Type: ApplicationFiled: December 30, 2008Publication date: July 1, 2010Inventor: Kiyohito Takano
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Publication number: 20100139584Abstract: An intercooler assembly for a vehicle. The intercooler assembly may include an inflow portion on which an inflow hose is mounted, the inflow portion including a buffering space to temporarily accumulate an in-flowing air, a first cooling portion fluidly connected to the inflow portion, an outflow portion on which an outflow hose is mounted, a second cooling portion fluidly connected to the outflow portion, and a turnaround portion fluidly connecting the first cooling portion and the second cooling portion, wherein the turnaround portion changes a flow direction of the in-flowing air and guides the in-flowing air toward the outflow portion so as to discharge the air.Type: ApplicationFiled: June 11, 2009Publication date: June 10, 2010Applicant: Hyundai Motor CompanyInventors: Sung IL YOON, Seung Yeon Lee
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Patent number: 7717070Abstract: The present invention provides engine-cooling module assemblies. One engine-cooling assembly includes an engine block and a cooling module including a coolant channel integrated into the engine block. Parallel to the coolant channel is a bypass channel integrated in the engine block and through which a portion of a coolant stream is conducted to an oil/coolant heat exchanger. The present invention also provides a method for cooling oil circulating in an oil circuit of an engine by means of a coolant. The coolant runs through a coolant channel that is formed of both a portion of the engine block and a portion of the cooling module.Type: GrantFiled: May 18, 2005Date of Patent: May 18, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Alexander Kanig, Torsten Löhnert, Jörg Schieferstein
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Patent number: 7694654Abstract: An internal combustion engine for a small planing boat for preventing supercooling of the internal combustion engine before warm-up while enabling efficient cooling of the internal combustion engine after warm-up. An internal combustion engine for a small planing boat includes a first cooling water path B through which cooling water introduced from a jet propulsion pump flows toward an internal combustion engine main body via an exhaust manifold. A second cooling water path C is provided through which cooling water introduced from the jet propulsion pump flows toward an exhaust pipe via an oil cooler. A bypass cooling water path D is provided for branching a part of cooling water in the second cooling water path C which flows out from the oil cooler, so as to merge into cooling water in the first cooling water path B which flows into the internal combustion engine main body.Type: GrantFiled: May 16, 2007Date of Patent: April 13, 2010Assignee: Honda Motor Co., Ltd.Inventors: Yosuke Hoi, Atsushi Kusuda
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Patent number: 7673593Abstract: The invention concerns an engine cooling system that comprises a cooling circuit (8) and an evaporative cooling arrangement (9). The cooling circuit (8) has a cooling capacity provided by exchanging the heat generated by the engine with ambient air. The evaporative cooling arrangement (9) has a cooling capacity provided by dissipating the heat generated by the engine, by vaporization of a vaporizing coolant in a boiler. The cooling capacity of the evaporative cooling arrangement (9) is such that with the cooling capacity of the cooling circuit (8), the global capacity of the cooling system can match, at least peak, cooling demands. As the cooling capacity of the cooling system is divided between the capacity of the cooling circuit and the capacity of the evaporative cooling arrangement, the capacity of the cooling circuit can be reduced in comparison to a conventional cooling circuit which has to match alone peak cooling demands.Type: GrantFiled: December 24, 2004Date of Patent: March 9, 2010Assignee: Renault TrucksInventor: Thomas Justin
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Patent number: 7665513Abstract: A heat exchanger structure of an automatic transmission stabilizing a temperature of oil is provided. A heat exchanger structure of an automatic transmission includes an automatic transmission, a first heat exchanger provided on an upstream side and a second heat exchanger provided on a downstream side, each capable of cooling oil ejected from the automatic transmission, and a thermo valve capable of supplying oil subject to heat exchange by at least one of first and second heat exchangers to the automatic transmission. When a temperature of the oil is relatively low, the thermo valve supplies oil passed through the first heat exchanger to the automatic transmission and shuts off a flow of oil from the second heat exchanger to the automatic transmission. When a temperature of the oil is relatively high, the thermo valve supplies oil passed through first and second heat exchangers to the automatic transmission.Type: GrantFiled: July 22, 2005Date of Patent: February 23, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Kazumichi Sasaki
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Publication number: 20090308335Abstract: A cooling system for internal combustion engines provides directed flows of heated or cooled coolant to various engine components and/or accessories as needed. By providing directed flows, the overall coolant flow volume is reduced from that of conventional cooling systems, allowing for a smaller capacity water pump to be employed which results in a net energy savings for the engine. Further, by reducing the overall coolant flow volume, the hoses and/or galleries required for the directed flows are reduced from those of conventional cooling systems, providing a cost savings and a weight savings. Finally, by preferably employing an impellor type water pump, the expense of an electric water pump and its associated control circuitry can be avoided. The direct flows are established by a multifunction valve which, in a preferred implementation, comprises a two-plate valve wherein each plate is operated by a wax motor.Type: ApplicationFiled: May 8, 2007Publication date: December 17, 2009Inventors: Pasquale Dipaola, Malcolm J. Clough, Robert Scotchmer
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Publication number: 20090126657Abstract: The present disclosure provides an engine cooling system comprising a first cooling circuit and a second cooling circuit, each of which includes a cooling unit for cooling a compressed or charge air from one or more turbochargers of the engine.Type: ApplicationFiled: November 15, 2007Publication date: May 21, 2009Inventors: Mahesh K. Mokire, Jiubo Ma
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Patent number: 7533636Abstract: A system, method, and computer readable media for controlling cooling in a diesel fueled power generation unit. The system includes a first cooling circuit configurable in a first mode for directing an oil coolant portion into main oil cooler and an intercooler coolant portion into an intercooler and configurable in a second mode for limiting the oil coolant portion provided to the main oil cooler. The system also includes a supplementary oil cooler for cooling a portion of the lubrication oil and a supplementary coolant source for providing a second coolant flow to the supplementary oil cooler. The system also includes a second cooling circuit in communication with the supplementary oil cooler configurable in the first mode for limiting the portion of the lubrication oil provided to the supplementary oil cooler and configurable in the second mode for directing the portion of the lubrication oil to the supplementary air oil cooler.Type: GrantFiled: April 30, 2007Date of Patent: May 19, 2009Assignee: General Electric CompanyInventors: Gregory A. Marsh, Mahesh C. Aggarwal
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Publication number: 20090107424Abstract: A system and method for controlling the temperature of the engine oil of an internal combustion engine of a motor vehicle are provided. The system includes an engine oil circuit for controlling the temperature of the engine oil, which engine oil circuit includes the internal combustion engine and a coolant/engine-oil heat exchanger; and a coolant circuit for controlling the temperature of the internal combustion engine, which coolant circuit in a main branch, includes the internal combustion engine, a coolant cooler and a first coolant pump and, in an auxiliary branch downstream of the coolant cooler, includes the coolant/engine-oil heat exchanger and a second coolant pump. The heat of the engine oil can thereby be dissipated via the coolant/engine-oil heat exchanger to the coolant and further via the coolant cooler to the environment.Type: ApplicationFiled: December 2, 2005Publication date: April 30, 2009Applicant: DAIMLERCHRYSLER AGInventors: Timo Blassnitz, Oliver Wiech
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Patent number: 7516727Abstract: A vehicle combustion engine includes an engine cylinder block having an exhaust port defined in a front surface area thereof and fluidly connected with an exhaust tube. A transmission is arranged rearwardly of a crankcase. The vehicle combustion engine also includes at least one of an oil filter for filtering oil and an oil cooler for cooling the oil, which is positioned outside the cylinder block and the crankcase, but close to a lower portion of the cylinder block at a location rearwardly of the cylinder block.Type: GrantFiled: September 19, 2007Date of Patent: April 14, 2009Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Atsushi Ueshima, Takahiro Ono