Valves For Fluid Coolant Patents (Class 123/41.08)
  • Patent number: 10415455
    Abstract: A cooling apparatus of an engine of the invention has a circulation passage for supplying cooling water to head and block passages through a heat exchanger. The apparatus circulates the cooling water through the circulation passage when a second condition is satisfied and then, a first condition is satisfied. The first condition includes a water supply condition that a supply of the cooling water to the exchanger is requested. The second condition includes the water supply condition and a condition that a cooling water temperature is lower than an engine completely-warmed water temperature.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: September 17, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshio Hasegawa, Yuji Miyoshi, Tomohiro Shinagawa, Yoshiharu Hirata, Ryo Michikawauchi
  • Patent number: 10400660
    Abstract: A cooling system controller controls a cooling system at least having a coolant pump (3) configured to supply a coolant to an internal combustion engine, a heat radiator (9) configured to cool the coolant, and an exhaust heat recovery system (6) configured to perform in heat exchange between the exhaust gas and the coolant. In addition, the cooling system controller (12) has a unit configured to control the coolant flow rate, a unit (13) configured to obtain a coolant temperature or pressure of the internal coolant passage of the engine, and a unit configured to obtain an internal coolant temperature or pressure of the exhaust heat recovery system. Furthermore, the coolant flow rate is restricted at a cold start of the internal combustion engine, and the restriction of the coolant flow rate is released on the basis of the coolant temperature or pressure of the engine coolant passage and the internal coolant temperature or pressure of the exhaust heat recovery system.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: September 3, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Hiroyuki Nagai, Toru Fukami
  • Patent number: 10400659
    Abstract: A coolant pump for an internal combustion engine (ICE) in a vehicle with a central engine control, having a pump shaft that drives an impeller for pumping a coolant. An axial piston pump operated via a wobble plate on a rear face of the impeller, conducts part of the pumped coolant away to a hydraulic circuit that extends from the axial piston pump via a proportional valve back to the pumped coolant and has a branch-off between the axial piston pump and the proportional valve as the hydraulic actuator. A regulating slide valve adjusts coolant volume flow of depending on pressure in the hydraulic circuit. A sensor detects a parameter characteristic of the coolant volume flow and outputs an actual value signal. A dedicated pump control controls the proportional valve based on the actual value signal of the sensor and a desired value signal of the central engine control.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: September 3, 2019
    Assignee: NIDEC GPM GMBH
    Inventors: Jens Hoffmann, Franz Pawellek
  • Patent number: 10161361
    Abstract: A method for operating a liquid coolant circuit of an internal combustion engine is described in which the coolant circuit contains an integrated EGR cooler such that the cooling system has a single circuit with two operational modes. The method includes a controller that can switch between operational modes to enable delivery of coolant to the EGR cooler when the flow of coolant through the block cooling circuit is blocked. In the second operational mode, the method also includes using an auxiliary pump to pass coolant to the EGR cooler while bypassing the main coolant pump, which can occur by adjusting the flow of coolant through the circuit so the flow through a bypass line is reversed relative to the inherent forward direction of flow in the bypass line during the first operational mode.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: December 25, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Hans Guenter Quix, Rainer Lach, Jan Mehring
  • Patent number: 10161290
    Abstract: An engine cooling system is provided with an internal combustion engine defining a head cooling jacket and a block cooling jacket in a split flow configuration. A first thermostat is positioned at an outlet of the block cooling jacket and configured to control coolant flow therethrough. A second thermostat is positioned to receive coolant flow from the first thermostat and the head cooling jacket. The first and second thermostats are in a thermostat assembly within a housing. In response to coolant temperature being below a first threshold, a first and a second thermostat downstream of the engine in a thermostat assembly are closed such that coolant flows through a head jacket and the thermostat assembly to a pump, and such that coolant in the head jacket entrains a trickle flow of coolant from a block jacket through an interbore cooling passage, thereby cooling an interbore region.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: December 25, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Clifford E. Maki, Sunil Katragadda, Ravi Gopal, Peter Kanefsky, Jeffrey A. Mullins, Lloyd E. Stanley, Jr.
  • Patent number: 10161293
    Abstract: An engine cooling system (2) includes a first passage (11) communicating a radiator (8) with a jacket inlet (7) of a water jacket of an engine, a second passage (13) communicating a jacket outlet (12) of the water jacket with the radiator, and a third passage (16) communicating a part of the second passage with a part of the first passage located between the radiator and the water pump. To allow the cooling water temperature circulating in a water jacket of an engine to be detected accurately, a water temperature sensor (72) is provided in a part of the second passage intermediate between the part of the second passage where the third passage branches off and the jacket outlet.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: December 25, 2018
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takuo Takizawa, Taichi Soga, Hiroto Asano, Yasuyoshi Matsumoto
  • Patent number: 10151224
    Abstract: A thermostat includes a carrier element which can be anchored in a housing, and a valve element which is movable relative to the carrier element. The valve element contacts the carrier element in a first position, whereby a duct within the housing can be closed. In a second position, which differs from the first position, the valve element does not contact the carrier element, whereby the duct can be opened. A wax element is arranged on the carrier element and is mechanically connected to the valve element. The wax element is configured to generate a stroke in case of a temperature change, by which the valve element can be moved.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: December 11, 2018
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Joachim Ebner, Bernhard Huber, Dennis Thamm
  • Patent number: 10125663
    Abstract: A thermostat for controlling flow of a coolant fluid through an aperture, the thermostat including a temperature sensitive valve for controlling the opening and closing of the aperture, the temperature sensitive valve including: a valve body with a heat sensitive material and a displaceable pin; a flange configured to seal off the aperture, a support member; and a flexible member located between the flange and the support member; the thermostat further including a piston configured to control compression of the flexible member from a bottom end thereof; and a hydraulic pressure compensation element connected to the flange and configured to compensate for a hydraulic pressure exerted by the coolant fluid on a lid of the temperature sensitive valve.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: November 13, 2018
    Assignee: M.A.P MOTORAD AUTOMOTIVE PARTS LTD.
    Inventor: Aviram Arbel
  • Patent number: 10100709
    Abstract: A control device is applied to an engine cooling system having a flow volume adjustment valve and a heat recovery unit. The control device includes a first learning unit which actuates a valve body to move to a valve-opening side by a predetermined amount at a time while a channel in the flow volume adjustment valve to the heat recovery unit is closed and learns a valve-closing position according to a coolant liquid that flows a circulation path and a second learning unit which actuates, after the valve-closing position is learned by the first learning unit, the valve body to move to the valve-opening side by a predetermined amount at a time within a range of a learned value while the channel is closed and determines to maintain the learned value and ends learning of the valve-closing position when the coolant liquid is not flowing the circulation path.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: October 16, 2018
    Assignee: DENSO CORPORATION
    Inventor: Daisuke Nakanishi
  • Patent number: 10059191
    Abstract: The present teachings provide for a flow restrictor for a coolant line of an internal combustion engine coolant system. The flow restrictor can include a restrictor element and a biasing member. The restrictor element can include a restrictor plate and a tab non-rotatably coupled at an angle. The biasing member can rotationally bias the restricting element to a first position where the restricting plate is substantially parallel to the flow of fluid. The tab can be configured to create a torque on the restricting element to overcome the biasing member and rotate the restricting plate to block a portion of the fluid flow path when the flow exceeds a predetermined flow rate.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: August 28, 2018
    Assignees: DENSO International America, Inc., DENSO CORPORATION
    Inventor: Jacob Wright
  • Patent number: 10054033
    Abstract: A cooling apparatus includes a coolant circulation channel for returning a coolant that passes through an engine main body, after causing the coolant to exchange heat with a radiator, device(s) and a heater, respectively. A multifunction valve as a rotary valve that is capable of adjusting an amount of coolant that is circulated to the radiator, device(s) and heater, respectively, is disposed in the coolant circulation channel. When automatic stopping of the engine is performed by idle stop-start control, during the automatic stopping the control apparatus continues to execute valve control of the multifunction valve that is being executed during the operation before the start of the automatic stopping.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: August 21, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Watanabe
  • Patent number: 10047704
    Abstract: An EGR device is operated and EGR is executed, when a temperature of a first cooling water that cools a cylinder block and a cylinder head is higher than an EGR allowable temperature, and a working point of the internal combustion engine that is fixed by a load and an engine speed is in an EGR execution region. The EGR execution region is variable with respect to a temperature of the second cooling water (the temperature of the second cooling water is lower than the first cooling water) that cools the intake port, and the EGR execution region is narrowed to a high load side in a case where the temperature of the second cooling water is lower than a threshold value temperature, as compared with a case where the temperature of the second cooling water is higher than the threshold value temperature.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: August 14, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Daishi Takahashi
  • Patent number: 10036338
    Abstract: A system and approach for development of setpoints for a controller of a powertrain system. The controller may be parametrized as a function of setpoints to provide performance variables that are considered acceptable by a user or operator for current operating conditions of the engine or powertrain. The controller may determine set point trajectories in real time during operation of the powertrain system and determine positions of manipulated variables do drive controlled variables to associated and determined set point trajectories. The present system and approach may determine set point trajectories for powertrain conditions on-line and in real time, whereas set point trajectories have previously been determined off-line for powertrain control.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: July 31, 2018
    Assignee: Honeywell International Inc.
    Inventors: Adrian Matias Fuxman, Daniel Pachner
  • Patent number: 10023025
    Abstract: A heat management system for an internal combustion engine has an engine cooling circuit, a main cooling circuit that has a main cooler, a heating circuit that has a heating heat exchanger, a coolant pump that moves coolant through the circuits and a rotary slide valve that has at least one switched and at least one non-switched inlet, such that the heating return flow leads into a switchable inlet of the rotary slide valve.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: July 17, 2018
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Rainer Richter, Wolfgang Hofmann, Wolfram Enke
  • Patent number: 9988966
    Abstract: An engine system with a coolant control valve includes: a valve housing having a first valve space and a second valve space formed at both sides by a partition and including a connection passage formed in the partition; a first rotary valve disposed in the first valve space and having first coolant passages; a second rotary valve disposed in the second valve space and having second coolant passages; distribution lines respectively connected to positions corresponding to the first coolant passages and the second coolant passages and distributing the coolant coming through the first rotary valve and the second rotary valve; and a driver to rotate the first rotary valve and the second rotary valve. In particular, the first and second coolant passages are connected to the connection passage depending on the rotation positions of the first rotary valve and the second rotary valve.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: June 5, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Hyo Jo Lee, Tae Man Chung, Sang Phil Han, Woo Yeol Jung, Yonggyu Lee
  • Patent number: 9909468
    Abstract: A fluid conditioning system includes a recirculation pump fluidly coupled to a reservoir via a first conduit; a delivery pump fluidly coupled in series with the recirculation pump, such that an outlet of the recirculation pump is fluidly coupled to an inlet of the delivery pump via a second conduit; and a recirculation loop including a recirculation filter, an inlet of the recirculation filter being fluidly coupled to the second conduit, and an outlet of the recirculation filter being fluidly coupled to the first conduit. The recirculation pump is configured to operate at a flow rate that is higher than a flow rate of the delivery pump.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: March 6, 2018
    Assignee: Caterpillar Inc.
    Inventors: Martin Lehman, Scott F. Shafer
  • Patent number: 9896178
    Abstract: A method of controlling engine RPM in a marine propulsion device having an engine that effectuates rotation of a propulsor through a gear system that shifts amongst a forward gear position, a reverse gear position, and a neutral position, includes determining that a coolant temperature is below a temperature threshold or that a battery voltage is below a voltage threshold, and then increasing an engine RPM setpoint by a compensation RPM amount while the engines remains in an idle state in order to increase the coolant temperature or the battery voltage. When a shift instruction is detected to transition the gear system from the reverse gear position to the neutral position or from the forward gear position to the neutral position, the engine RPM setpoint is reduced by a shift RPM reduction amount during transition of the gear system, and the engine is controlled according to the engine RPM setpoint.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: February 20, 2018
    Assignee: Brunswick Corporation
    Inventors: Andrew J. Przybyl, Justin R. Poirier, Robert Raymond Osthelder
  • Patent number: 9821834
    Abstract: Disclosed is a motor-driven power steering apparatus including: a rack shaft that is operated by steering of a steering unit; a gear housing that accommodates the rack shaft; a tip-side opening which is formed in the gear housing, and through which an inside of the gear housing communicates with an outside of the gear housing; a gas ventilation valve that covers the tip-side opening while ensuring ventilation, through the gas ventilation valve, of a gas via the tip-side opening; and a diaphragm that is provided further inside of the gear housing than the gas ventilation valve, suppresses infiltration of a gas, which passes through the gas ventilation valve, into the gear housing, and is deformed according to a difference between an internal pressure and an external pressure of the gear housing.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: November 21, 2017
    Assignee: SHOWA CORPORATION
    Inventor: Satoshi Enomoto
  • Patent number: 9810136
    Abstract: A coolant-control valve that performs initialization learning using a stopper and provides an efficient structure by an initialization learning stopper within an actuator which drives a valve body. The coolant-control valve is equipped with a rotor driven to control a flow rate of coolant for cooling an engine, a casing that houses the rotor, and a rotary drive device that drives the rotor. Control means of the rotary drive device have an initialization learning function of an operating range of the rotor. The rotary drive device is equipped with a motor and a reduction gear. The operating range of the rotor is restricted by the operating range of an output gear among power transmission elements in the reduction gear. A groove of the output gear and a fixed-angle stopper inserted into the groove are restricting means for use during initialization learning by the control means.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: November 7, 2017
    Assignee: MIKUNI CORPORATION
    Inventors: Toru Tsuchiya, Takumi Oikawa, Yoshiyuki Kanesaka, Satoshi Ando
  • Patent number: 9810137
    Abstract: The present disclosure relates to a vehicle cooling circuit for cooling a temperature-increasing device, in particular a battery, by means of a coolant conducted in a coolant circuit, wherein the coolant circuit has a heat exchanger configured as an evaporator via which the coolant circuit is coupled to a cooling medium circuit. In accordance with the present disclosure, the chiller is arranged downstream of the heat exchanger in the direction of flow of the coolant in the coolant circuit. Furthermore a bypass valve is arranged in the coolant line such that the coolant can be conducted fully or partially past the chiller.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: November 7, 2017
    Assignee: Liebherr-Transportation Systems GmbH & Co. KG
    Inventors: Andreas Presetschnik, Klaus Hense
  • Patent number: 9790932
    Abstract: An actuated rotary valves for reciprocating compressors used in oil and gas industry, the valve including a stator with a stator opening, a rotor with a rotor opening, and an actuation mechanism. The actuation mechanism is configured to receive a rotation motion and to actuate the rotor to perform first an axial translation moving away from the stator and then a rotation. The actuation mechanism includes an outer shaft configured to receive the rotation motion, and an inner shaft inside the outer shaft and configured to rotate the rotor. The outer shaft is configured to rotate a predetermined angular displacement while pushing the rotor away from the stator before engaging the inner shaft to rotate together with the rotor.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: October 17, 2017
    Assignee: Nuovo Pignone S.P.A.
    Inventors: Riccardo Bagagli, Leonardo Tognarelli
  • Patent number: 9783226
    Abstract: Disclosed is a motor-driven power steering apparatus including: a rack shaft that is operated by steering of a steering unit; a gear housing that accommodates the rack shaft; a tip-side opening which is formed in the gear housing, and through which an inside of the gear housing communicates with an outside of the gear housing; a gas ventilation valve that covers the tip-side opening while ensuring ventilation, through the gas ventilation valve, of a gas via the tip-side opening; and a diaphragm that is provided further inside of the gear housing than the gas ventilation valve, suppresses infiltration of a gas, which passes through the gas ventilation valve, into the gear housing, and is deformed according to a difference between an internal pressure and an external pressure of the gear housing.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: October 10, 2017
    Assignee: SHOWA CORPORATION
    Inventor: Satoshi Enomoto
  • Patent number: 9777615
    Abstract: The present invention is configured such that: a cylinder block includes an introducing portion provided at a first side of a cylinder row, cooling liquid being introduced through the introducing portion to a water jacket, a restrictor portion provided in a vicinity of the introducing portion and configured to restrict the cooling liquid, introduced through the introducing portion, from flowing to an intake-side portion of the water jacket, and a discharging portion provided at a middle portion of the cylinder row at an intake side, the cooling liquid being discharged from the water jacket through the discharging portion; and an exhaust-side portion of the water jacket is formed such that a passage cross-sectional area of a cylinder axis direction upper side of the exhaust-side portion is larger than the passage cross-sectional area of a cylinder axis direction lower side of the exhaust-side portion.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: October 3, 2017
    Assignee: Mazda Motor Corporation
    Inventors: Daisuke Matsumoto, Daisuke Tabata, Masahiro Naito
  • Patent number: 9758017
    Abstract: In order to shift a rotation angle of a rotor to a region of a normal mode (for example, a region c) from a region of a heater cut mode (for example, a region e), the rotation angle needs to pass through a region where a flow rate of a refrigerant which is caused to flow through all branch channels becomes zero (a region d). When the refrigerant has a high temperature, there is a possibility of the refrigerant being not cooled, and boiling. Therefore, when a request to switch a normal mode and a heater cut mode is issued, permission/non-permission of switch of the mode is determined by comparison of a temperature of the refrigerant detected by the temperature sensor 26 and an upper limit temperature of the refrigerant.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: September 12, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ryo Michikawauchi
  • Patent number: 9682685
    Abstract: Methods and systems are provided for reducing condensate accumulation at a charge air cooler (CAC) during cold ambient conditions. During defrosting conditions, an air conditioner may be operated to dehumidify a cabin space while heat is rejected into a cooling circuit. Warm coolant may be directed to a CAC bypassing a radiator to expedite CAC heating.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: June 20, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Ravi Gopal, Sunil Katragadda
  • Patent number: 9677456
    Abstract: A vehicle having: an internal combustion engine provided with a plurality of cylinders, at least one cylinder block, in which the cylinders are located, and at least one head, which is fixed to the cylinder block, and a liquid cooling system, comprising a hydraulic circuit, inside of which a coolant flows, which is circulated by a circulation pump. The hydraulic circuit has an initial section, which is located inside the head of the internal combustion engine, and a final section, which is obtained inside the cylinder block of the internal combustion engine. In the hydraulic circuit, the delivery of the circulation pump is directly connected to the inlet of the initial section, and the outlet of the initial section is directly connected to the inlet of the final section.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: June 13, 2017
    Assignee: Ferrari S.p.A.
    Inventors: Massimo Medda, Davide Frigeri
  • Patent number: 9617906
    Abstract: A coolant control valve of an engine may include a cylindrical valve in which a space is formed along a length directional center axis thereof, a first inlet through which a coolant flows being formed at one end of the cylindrical valve, an outlet being formed at an outer surface of the cylindrical valve in the space, a first convex surface and a second convex surface and a second inlet through which the coolant flows into the space being formed at the outer surface corresponding to a recess portion formed between the first convex surface and the second convex surface, a valve housing, a first inflow pipe transmitting the coolant to the space through the first inlet, a second inflow pipe transmitting the coolant to the space through the second inlet, and a driver provided at one side of the valve housing to rotate the cylindrical valve.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: April 11, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Philgi Lee
  • Patent number: 9404410
    Abstract: An internal combustion engine has a cylinder-head-passage through which an engine coolant flows toward a water jacket when a water pump is operated. The water pump is an electric water pump utilizing the electric power charged in the battery. A radiator is provided in the cylinder-head-passage. Even after the engine is shut off, the water pump is kept driven.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: August 2, 2016
    Assignee: DENSO CORPORATION
    Inventors: Michio Nishikawa, Nobuharu Kakehashi, Koji Ota
  • Patent number: 9261012
    Abstract: When a temperature difference between intake air temperature that detected by an intake air temperature sensor and engine coolant temperature thw1 detected by an engine coolant temperature sensor is greater than a threshold value, a coolant temperature sensor abnormality determination apparatus opens a changeover valve to cause the coolant to flow into an engine coolant passageway, thereby mixing the coolant in an engine and the coolant in a heater passageway (bypass passageway). If the temperature difference between the engine coolant temperature thw1 and a heater inlet coolant temperature (bypass coolant temperature) thw2 occurring after the changeover valve opens is less than or equal to a predetermined value, the apparatus determines that the engine coolant temperature sensor is normal. If the temperature difference is greater than the predetermined value, the apparatus determines that the engine coolant temperature sensor is abnormal.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: February 16, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tatsuki Saitoh
  • Patent number: 9140152
    Abstract: A method is provided to diagnose a failure of an OPCJ valve of an internal combustion engine. The OPCJ valve is located in an auxiliary line connecting an engine lubrication line to at least an oil jet for squirting lubricating oil from the engine lubrication line towards a piston surface. The method provides for monitoring the pressure variation in the engine lubrication line due to a switching signal sent to the OPCJ valve.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: September 22, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Morena Bruno, Davide Donna, Roberto Argolini
  • Patent number: 9080497
    Abstract: A water-cooled engine includes first connection paths continuous with a cylinder-head-side water jacket and a second connection path continuous with a cylinder-body-side water jacket. The paths are disposed in a sidewall of a cylinder body. A thermostat valve is attached to the sidewall. An oil cooler having a cooling water lead-in pipe and a cooling water lead-out pipe is attached to one sidewall of an engine main body to face the same direction as that of the thermostat valve. The cooling water lead-in pipe and the cooling water lead-out pipe are connected to the thermostat valve.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: July 14, 2015
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Hayato Yamashiro, Masazumi Naito, Hidetoshi Wakasa, Takuya Miyamura, Hiroyuki Sugiura
  • Patent number: 9032915
    Abstract: Various systems are provided for liquid-cooling of an internal combustion engine. In one example, an internal combustion engine includes a cylinder head, a cylinder block coupled to the cylinder head, a first return line fluidically coupled to the cylinder head and to a coolant valve and including a heat exchanger configured to remove heat from coolant, a second return line fluidically coupled to the cylinder block and to the coolant valve, a bypass line branching off from the first return line and fluidically coupled to the coolant valve, and an originating supply line fluidically coupled to the cylinder head, the cylinder block, and the coolant valve, the originating supply line including a pump configured to supply coolant. The coolant valve is configured to control coolant flow through the coolant lines via rotational selection of one of a plurality of working positions.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: May 19, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Michael Tobergte, Bert Pingen, Bernd Schumacher, Jan Mehring
  • Publication number: 20150114324
    Abstract: A thermostat includes an annular flange extending in radial directions and surrounded by a cylindrical large-diameter portion of a housing inner surface, and a frame extending in axial directions from the flange. The thermostat further includes a sealing member that hermetically seals the gap between the flange and the inner surface. The sealing member includes an annular outer peripheral portion sandwiched in the axial directions by the inner surface and a thermostat cover inside the large-diameter portion, and a plurality of protruding portions extending outward in the radial directions from the outer peripheral portion toward the large-diameter portion. The thermostat is disposed inside a housing that defines a portion of a cooling water passage, and opens and closes the cooling water passage according to the temperature of cooling water inside the cooling water passage.
    Type: Application
    Filed: September 17, 2014
    Publication date: April 30, 2015
    Inventors: Shinya MAEKAWA, Kouichi ISOZAKI, Kimitaka SARUWATARI
  • Publication number: 20150096508
    Abstract: A method of limiting pressure in a liquid cooling system of an internal combustion engine when the engine overspeeds, such as when an engine brake is applied.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 9, 2015
    Applicant: International Engine Intellectual Property Company , LLC
    Inventor: Ernst Alfred Duerr
  • 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
  • Publication number: 20150083057
    Abstract: A coolant-control valve that performs initialization learning using a stopper and provides an efficient structure by an initialization learning stopper within an actuator which drives a valve body. The coolant-control valve is equipped with a rotor driven to control a flow rate of coolant for cooling an engine, a casing that houses the rotor, and a rotary drive device that drives the rotor. Control means of the rotary drive device have an initialization learning function of an operating range of the rotor. The rotary drive device is equipped with a motor and a reduction gear. The operating range of the rotor is restricted by the operating range of an output gear among power transmission elements in the reduction gear. A groove of the output gear and a fixed-angle stopper inserted into the groove are restricting means for use during initialization learning by the control means.
    Type: Application
    Filed: December 1, 2014
    Publication date: March 26, 2015
    Applicant: MIKUNI CORPORATION
    Inventors: Toru TSUCHIYA, Takumi OIKAWA, Yoshiyuki KANESAKA, Satoshi ANDO
  • Patent number: 8985066
    Abstract: A cooling circuit, in particular of a motor is provided that includes a drive unit with a cooling circuit, through which coolant heated in the drive unit flows, a first heat exchanger which emits heat from the coolant to the environment and a device for energy recovery with a second heat exchanger, which is switched into the cooling circuit. A line section of the cooling circuit is connectable in parallel to the second heat exchanger that includes a hydraulic element, which guides a defined coolant flow to the second heat exchanger.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: March 24, 2015
    Assignee: Behr GmbH & Co. KG
    Inventors: Rainer Lutz, Richard Bruemmer
  • 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
  • Publication number: 20150068471
    Abstract: A control valve for a lubricant nozzle for cooling a piston of an internal combustion engine includes at least one passage opening through which lubricant can flow, a control part which is movable in a respective movement direction and which, as a function of its position, forms an opening cross section with the passage opening for at least partially opening up or for closing off the passage opening, and an actuation part which moves the control part as a function of a pressure of the lubricant between at least one first position in the presence of a first pressure, a second position in the presence of a second pressure and a third position in the presence of a third pressure of the lubricant. The second pressure is higher than the first pressure and lower than the third pressure, wherein the opening cross section formed in the second position is larger than the opening cross sections in the first position and in the third position.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 12, 2015
    Inventor: Thomas SCHNEIDER
  • Patent number: 8967095
    Abstract: An engine cooling apparatus includes an engine for vehicle traveling, a pump driven by the engine, a heat exchanger, a circulation passage for circulating cooling liquid between the engine and the heat exchanger by driving the pump, a solenoid valve capable of opening/closing the circulation passage, and a controller for controlling operations of the engine. The solenoid valve includes a valve body movable between a position away from a valve seat and a position contacting the valve seat and held to contact the valve seat and a solenoid capable of maintaining contact between the valve body and the valve seat in response to supply of power thereto. When driving of the pump under a non-energized state of the solenoid, the valve body is movable to the position away from the valve seat by the cooling liquid fluid pressure.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: March 3, 2015
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Masanobu Matsusaka, Tadayoshi Sato, Hirohisa Takano
  • Publication number: 20150047581
    Abstract: The present invention refers to a method for controlling a piston cooling circuit of an internal combustion engine wherein said circuit comprises at least a circulation pump and means for emitting cooling oil connected to the delivery of the pump. According to the method, said pistons are cooled by a jet generated by said emitting means only during the upward stroke of said pistons from the bottom dead center to the top dead center.
    Type: Application
    Filed: April 17, 2013
    Publication date: February 19, 2015
    Inventor: Clino D'Epiro
  • Patent number: 8955471
    Abstract: A mechanical coolant pump for an internal combustion engine includes an outlet channel comprising an outlet valve and an outlet channel wall with a passing slit. An impeller is configured to pump a coolant into the outlet channel. The outlet valve comprises a shiftable flat valve plate configured to be shiftable in a transversal plane of the outlet channel through the passing slit of the outlet channel wall.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: February 17, 2015
    Assignee: Pierburg Pump Technology GmbH
    Inventors: Gilles Simon, Arnaud Fournier
  • Patent number: 8944017
    Abstract: A cooling system has an engine heat exchanger in thermal communication with engine oil in an engine. A transmission heat exchanger is in thermal communication with transmission oil in a transmission. A pump has a pump inlet and a pump outlet. A valve assembly is in fluid communication with the pump outlet and has a first and a second position that at least partially establish different coolant flow modes through a plurality of coolant flow passages. The valve assembly has a first inlet that receives coolant that flows from the pump outlet, to an engine inlet, then through the engine to an engine outlet. The valve assembly has a second inlet that receives coolant that flows from the pump outlet and bypasses the engine. The valve assembly has a single outlet that directs coolant flow to at least one of the engine heat exchanger and the transmission heat exchanger.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: February 3, 2015
    Assignee: GM Global Technology Operations LLC
    Inventor: Daniel B. Glassford
  • Patent number: 8931439
    Abstract: A thermal management module includes a motor with an output shaft, and a gear train connecting the output shaft to a driven gear connected to a valve for controlling coolant flow in a coolant system. At least one grille shutter is movable between an open position allowing air through the grille shutter and a dosed position preventing air through the grille shutter. A linkage connects the at least one grille shutter to the output shaft or the gear train, so that the motor is operable to control a valve operating position of the valve and a shutter operating position of the at least one shutter.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: January 13, 2015
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Jeffrey Hemphill, Philip George
  • Patent number: 8925499
    Abstract: A wax-type thermostat for the cooling system of an internal combustion engine (ICE) is provided. The cooling system includes a radiator and a coolant loop circuit linking the radiator to the internal combustion engine, and having a by-pass conduit. The thermostat includes a thermostat body with a radiator inlet, an ICE inlet, via the by-pass conduit, and an ICE outlet. The thermostat further includes a piston integral to a closure element that opens or close a thermostat internal pathway connecting the radiator inlet to the ICE outlet, and a wax chamber thermally connected to the coolant within the thermostat body. The thermostat includes a first spring to return the closure element towards its closing position, and means for moving the piston when a volume variation in the wax occurs.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: January 6, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Luca Borgia, Carmine Pezzella
  • Patent number: 8925512
    Abstract: A support structure for a water-cooled internal combustion engine supported by a body frame of a motorcycle 2 includes a cooling device that circulates cooling water through an inside and an outside of at least a cylinder head of the engine, a thermo-valve that controls the cooling water circulating in the cooling device, and a thermo-valve case that accommodates the thermo-valve and that is integrally molded with the cylinder head such that a part thereof bulges from a side surface of the cylinder head. A support portion formed on the cylinder head is fixed to the body frame and is integrally molded so as to stride between the cylinder head and the thermo-valve case, whereby the support portion is solidly formed and an area around a thermo-valve case can be reinforced by the support portion.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: January 6, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshihiro Kitada, Akihiro Iida
  • Publication number: 20140360444
    Abstract: An object of this invention is to suppress the occurrence of pre-ignition by appropriately controlling a wall surface temperature of a combustion chamber based on a target temperature region in which the frequency with which pre-ignition occurs is reflected, without causing pre-ignition to actually occur. An ECU 50 acquires a wall surface temperature of a combustion chamber 14 or an engine water temperature or the like that correlates therewith as a wall temperature parameter. The ECU 50 is equipped with data for a pre-ignition suppression temperature region that is a region in which the pre-ignition occurrence frequency is smallest among temperature regions of the wall temperature parameter. In a pre-ignition susceptibility operating region A, the wall temperature parameter is controlled so as to fall within the pre-ignition suppression temperature region by operating a cooling water amount varying mechanism 38.
    Type: Application
    Filed: February 6, 2012
    Publication date: December 11, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke Morita, Motoichi Murakami, Hiroshi Yaguchi, Takeshi Kitayama
  • Patent number: 8905076
    Abstract: A vehicular cooling system coolant-return manifold is provided that includes a plurality of ports reconfigurable by the user to open, such that coolant will flow into the manifold, or close, such that coolant will not flow into the manifold. The ports are opened and closed by rotating a valve spool in relation to the manifold body. The ports of the manifold are brought into alignment with holes in the valve spool to open a port such that coolant flows into the manifold. A plurality of positions of the valve spool in relation to the manifold body allow a user to select a position wherein the desired combination of ports are on and off.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: December 9, 2014
    Assignee: PACCAR Inc
    Inventors: Iner M. Jorgensen, Stanley M. Desaki
  • Publication number: 20140352636
    Abstract: A cooling system has an engine heat exchanger in thermal communication with engine oil in an engine. A transmission heat exchanger is in thermal communication with transmission oil in a transmission. A pump has a pump inlet and a pump outlet. A valve assembly is in fluid communication with the pump outlet and has a first and a second position that at least partially establish different coolant flow modes through a plurality of coolant flow passages. The valve assembly has a first inlet that receives coolant that flows from the pump outlet, to an engine inlet, then through the engine to an engine outlet. The valve assembly has a second inlet that receives coolant that flows from the pump outlet and bypasses the engine. The valve assembly has a single outlet that directs coolant flow to at least one of the engine heat exchanger and the transmission heat exchanger.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Daniel B. Glassford
  • Publication number: 20140345548
    Abstract: A cooling apparatus includes a cooling passage provided in an internal combustion engine, a water pump, a radiator, a first passage through which the water pump and the cooling passage are connected to each other, a second passage through which the cooling passage and the radiator are connected to each other, a third passage through which the radiator and the water pump are connected to each other, and an oil cooler passage provided with an oil cooler. An in-line type thermostat is provided at any position in a portion of a cooling water circuit which leads from a first end portion to a second end portion via the second passage, the radiator, and the third passage.
    Type: Application
    Filed: April 1, 2014
    Publication date: November 27, 2014
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Tetsu MIURA, Kazuyuki MAEDA, Makoto KOBAYASHI