Cooling Radiator Patents (Class 236/34)
  • Patent number: 9727062
    Abstract: A system, in certain embodiments, includes an SMA thermostat. The SMA thermostat includes a body, a sleeve, a biasing spring and an SMA spring. Upon actuation of the SMA spring at a phase transition temperature, the sleeve is configured to shift and expose flow ports formed in the body.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: August 8, 2017
    Assignee: ONESUBSEA IP UK LIMITED
    Inventors: Chris Kocurek, Chelsea Green
  • Patent number: 9677680
    Abstract: A sanitary fixture (1), including a flow regulator unit (5) and a movable adjustment element (6) that adjusts a flow rate and has a control connection to a temperature-sensitive control element (8). The invention provides arranging a return spring (13) on a same side of the flow regulator unit (5) as the control element (8), with respect to the flow direction, and/or designing the control element (8) to assume at least one intermediate position.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: June 13, 2017
    Assignee: NEOPERL GMBH
    Inventor: Marc Tempel
  • Patent number: 9292020
    Abstract: A fail-safe engine coolant thermostat includes a body having a bore with an inlet and an outlet. A thermal actuator capable of extended and retracted positions due to coolant temperature is disposed in the body. A valve plate is pivotally mounted in the body to open and close fluid flow through the body. A connecting member is coupled between the thermal actuator and the valve plate to pivot the valve plate to the closed flow position. A pivot connection of the valve plate to the body is diametrically off center to the valve plate to pivot to the fluid flow open position under coolant fluid flow pressure unless the thermal actuator, at cold fluid temperatures, pivots the value plate to the closed position through the connecting member. An adjustment is provided for the connecting member to enable adjustment of the valve plate to the full closed position.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: March 22, 2016
    Inventor: Darrel R. Sand
  • Patent number: 8991339
    Abstract: The present disclosure relates to a multiple zone vehicle radiator, including: a housing; a first zone included in the housing; a second zone included in the housing; a baffle between the first and second zone, located in an outlet manifold of the housing; and a zone modifier configured to regulate coolant distribution between the first zone and second zone according to predetermined conditions.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: March 31, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: James Thomas Gooden, Scott Russo, Michael Joseph Giunta
  • Patent number: 8899492
    Abstract: A method for actively cooling the battery pack of an electric vehicle after the vehicle has been turned off, thereby limiting the adverse effects of temperature on battery life, is provided. Different battery pack cooling techniques are provided, thus allowing the cooling technique used in a particular instance to be selected not only based on the thermal needs of the battery pack, but also on the thermal capacity and energy requirements of the selected approach.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: December 2, 2014
    Assignee: Tesla Motors, Inc.
    Inventors: Kurt Russell Kelty, Scott Ira Kohn, Weston Arthur Hermann, Clay Hajime Kishiyama
  • Patent number: 8783216
    Abstract: An oil/coolant module for a combustion engine, includes an oil filter, an oil/water heat exchanger, a water pump, and a coolant treatment system comprising a water filter and containing treatment additives for a coolant circuit.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: July 22, 2014
    Assignee: Hengst GmbH & Co. KG
    Inventors: Joerg Wilmink, Reiko Haase
  • Patent number: 8636225
    Abstract: This thermostat (1) comprises a body (10) which comprises a one-piece metal part (11) including simultaneously, in succession along the axis (X-X) of a thermostatic element (20) of the thermostat, a transverse tab (12) against which the piston (22) of this element can bear, a tubular part (13) centred on this axis and defining a shut-off seat (13A), and two support arms (14) supporting a return spring (40) for returning this element, which arms extend lengthwise more or less in the axial direction of the element and each delimits, at their opposite end (14A) to the tubular part, a surface (14A1) for contact with the spring against which surface the compressed spring is pressed.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: January 28, 2014
    Assignee: Vernet
    Inventor: Nicolas Pottie
  • Patent number: 8561580
    Abstract: In an engine, a block-side flow path for circulating cooling water to cool a cylinder block, and a head-side flow path for circulating cooling water to cool a cylinder head are formed. A head-side outlet temperature of cooling water flowing out of the head-side flow path is adjusted by using a water pump that pressure sends the cooling water to both the block-side flow path and the head-side flow path. A block-side outlet temperature of cooling water flowing out of the block-side flow path is adjusted by a first thermostat that changes a flow amount of the cooling water flowing out of the block-side flow path. The cooling water flowing out of the block-side flow path is used as a heat source of first and second heater cores for heating air.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: October 22, 2013
    Assignees: Denso Corporation, Nippon Soken, Inc.
    Inventors: Nobuharu Kakehashi, Michio Nishikawa, Mitsunobu Uchida
  • Patent number: 8556186
    Abstract: A fail safe engine coolant thermostat includes a body having a bore with an inlet and an outlet. An actuator exposed to coolant fluid and capable of movement based on coolant temperature is disposed in the body. A valve plate is pivotally mounted in the body to open and close fluid flow through the body outlet. A connecting member is coupled between the actuator and the valve plate to pivot the valve plate between fluid flow open and closed positions. The pivot connection of the valve plate is diametrically off center to define a large surface area and a smaller surface area on opposite sides of the pivot connection such that, in absence of a connection between the actuator, the connecting member and the valve plate, the valve plate pivots to the fluid flow open position under the influence of coolant fluid flow through the body.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: October 15, 2013
    Inventor: Darrel Sand
  • Publication number: 20130092744
    Abstract: The heating-medium heating unit is provided with a plurality of flat heat-exchange tubes (17) each having an inlet header (22) and an outlet header (23) at one end or both ends of flat tube portions (20) through which a heating medium is circulated; sealing materials (26) that seal the peripheries of communicating holes (24, 25) of the inlet headers (22) and the outlet headers (23) of the stacked flat heat-exchange tubes (17); PTC heaters assembled between the flat tube portions (20) of the flat heat-exchange tubes (17); and a heat-exchange pressing member (16) that presses the alternately stacked flat heat-exchange tubes (17) and PTC heaters into close contact with each other, wherein a deformation-preventing reinforcing portion (29) is provided around each of the communicating holes (24, 25) in the inlet header (22) and the outlet header (23) of each of the flat heat-exchange tubes (17).
    Type: Application
    Filed: September 30, 2011
    Publication date: April 18, 2013
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Satoshi Kominami, Yasunobu Joboji, Naoto Kunieda
  • Patent number: 8418931
    Abstract: A system for cooling an engine is described. The system includes a heat exchanger having a first heat exchange portion that removes heat energy from coolant fluid flowing therein, and a second heat exchange portion that removes heat energy from coolant fluid flowing therein; a first thermostat integral to the heat exchanger and fluidically and mechanically coupled to at least one of the first and second heat exchange portions; and a second thermostat, integral to the heat exchanger and fluidically and mechanically coupled to at least one of the first and second heat exchange portions.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: April 16, 2013
    Assignee: Ford Global Technologies, LLC
    Inventor: Robert Hornblower Meyer
  • Publication number: 20120228392
    Abstract: Systems, methods, and computer-readable media. for thermally managing electronic devices using dynamic optical components are provided. At least one of the reflectance and the transmittance of incident electromagnetic radiation of a dynamic optical component on an electronic device may be adjusted based on a detected variable device characteristic of the device, such as a temperature of a device component. By adjusting the reflectance and/or the transmittance of the dynamic optical component, different portions of the incident electromagnetic radiation may be directed from the dynamic optical component for changing the variable device characteristic.
    Type: Application
    Filed: March 11, 2011
    Publication date: September 13, 2012
    Applicant: APPLE INC.
    Inventors: Gordon Cameron, Ryan Joseph Garrone
  • Patent number: 8217558
    Abstract: Apparatus for regulating the temperature of a light emitting diode (LED). The apparatus includes a heat sink, an LED mount, and an LED mounted on the LED mount. The LED mount is configured to change shape in response to a change in temperature. The change in shape alters the position of the LED relative to the heat sink, for adjusting heat transfer between the LED and the heat sink. The LED mount may include a laminated portion such as a bi-metallic strip.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: July 10, 2012
    Assignee: NXP B.V.
    Inventors: Pascal Bancken, Viet Nguyen Hoang, Radu Surdeanu, Benoit Bataillou, David van Steenwinckel
  • Patent number: 8141790
    Abstract: A by-pass valve for a heat exchanger circuit that includes a cooler has a chamber and ports for flow of fluid into and out of this chamber. A thermally sensitive actuator is mounted in the chamber and can extend or retract in dependence on its body temperature as influenced by temperature of the fluid. A by-pass valve seat is arranged in a valve housing along with a by-pass valve member movable by the actuator into or out of engagement with the seat. A relief valve is mounted in the chamber and has a relief valve member movable between closed and open positions in order to close or open pressure relief ports. This relief valve member is biased towards the closed position. Excessive pressure build up in an end section of the chamber causes the relief valve member to move to its open position.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: March 27, 2012
    Assignee: Dana Canada Corporation
    Inventor: Jeffrey Owen Sheppard
  • Patent number: 8020613
    Abstract: A heat transfer controlling mechanism and a fuel cell system, which allow working fluid to flow in a predetermined direction in a loop-shaped flow path without a back flow, having a simple structure independent of the orientation during use, low power consumption, and efficient heat transfer and size reduction. The mechanism includes a vaporizing portion, a condensing portion, and a loop-shaped flow path connecting the vaporizing and the condensing portions so as to seal working fluid. The mechanism transports heat by vaporizing the fluid in the vaporizing portion and condensing the fluid in the condensing portion to control heat transfer. The mechanism further includes a gas passage suppressing portion on one side in the flow path, for allowing liquid, but not gas, to pass therethrough and a liquid passage suppressing portion on the other side in the flow path, for allowing gas, but not liquid, to pass therethrough.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: September 20, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toru Nakakubo
  • Publication number: 20110095091
    Abstract: To obtain a thermostat device in which a thermo element assembly can be extremely easily and properly assembled and fixed to a device housing. The thermostat device has a thermo element assembly (10) configured by a piston (3), a thermal expansion unit that changes its volume with a change in temperature, to reciprocate a cylinder container (4) with respect to the piston, and a heating element (H) that is provided in a casing of the piston and heats the thermal expansion unit (W) when supplied with current. An assembling hole (11) is provided in the device housing in order to hold an outer end of the thermo element assembly by causing the outer end to pass therethrough toward the outside of the device. Moreover, a piston guide (13) is provided at a section on the upper end side of the piston configuring the thermo element assembly.
    Type: Application
    Filed: July 10, 2008
    Publication date: April 28, 2011
    Applicant: NIPPON THERMOSTAT CO., LTD.
    Inventors: Hiroshi Suda, Kiyoshi Kadoshima
  • Patent number: 7860378
    Abstract: In a baffle device 20 fixedly provided in an air passage of a mechanism for blowing out hot air to a solder treatment portion, vanes inclined with a predetermined inclination angle with respect to an air flow are provided substantially radially with a predetermined interval. Also, in a nozzle to be attached to the hot air blower for solder treatment, the baffle device 20 is fixedly provided in an in-nozzle air passage. Moreover, in the hot air blower for solder treatment which blows out hot air to the solder treatment portion, the baffle device 20 is fixedly provided in an in-blower air passage.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: December 28, 2010
    Assignee: Hakko Corporation
    Inventor: Yoshitomo Teraoka
  • Patent number: 7757960
    Abstract: A thermostat valve for a cooling system of a combustion engine, comprising a disc-shaped valve member, having a sealing portion and biased by a spring against an annular valve seat provided in a valve housing, a thermal extension element (DWE) within the valve housing which acts on the valve member opposite to the valve spring, characterized in that the valve member includes two separate parts, the first part being an annular member having an outer annular sealing portion and an inner annular sealing portion, the outer sealing portion cooperating with the valve seat and the second part being a plug-shaped member and extending through the annular member, the plug-shaped member having an outer annular sealing portion which in the closed position of the plug-shaped member cooperates with the inner sealing portion of the annular member, the plug-shaped member cooperating with the thermal extension element (DWE) and being structured such that upon an initial movement of the plug-shaped member by the thermal extens
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: July 20, 2010
    Assignee: ITW Automotive Products GmbH & Co. KG
    Inventor: Carsten Heldberg
  • Patent number: 7621150
    Abstract: A gas cooler and heat exchanger assembly comprises a gas cooler, including a cylindrical inlet header and a cylindrical outlet header, and a heat exchanger, including a first tank and a second tank, with at least a portion of each of the tanks being cylindrical and being an extension of and integral with each of the associated and aligned headers. In the first embodiment, the entirety of each of the tanks is cylindrical in shape and extends from the associated header. Each of the tanks is bisected thus defining a semi-cylindrical hot chamber and a semi-cylindrical cool chamber. In the second embodiment, only the cylindrical hot chamber of each of the tanks is cylindrical in shape and extends from the associated header. An additional box-shaped structure defines a box-shaped cool chamber disposed along and inwardly of each of the cylindrical hot chambers.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: November 24, 2009
    Assignee: Delphi Technologies, Inc.
    Inventors: Prasad Shripad Kadle, Xiaoxia Mu
  • Patent number: 7533009
    Abstract: To enable immediate and easy-to-understand confirmation of heat-dissipation capability only by entering shape data of a radiator without switching screens. Shape data input sections and a shape display section for a radiator, and a graph display section which displays the calculated result as a graph are adapted to be displayed on the identical screen of the screen device. The pattern diagram of a radiator shape and the result of heat-dissipation capability can be seen on the graph simultaneously only by entering the shape data of the radiator without switching the screen.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: May 12, 2009
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takashi Watanabe, Masayuki Iwata, Koji Sakagami, Satoru Kiyota
  • Patent number: 7455239
    Abstract: The invention relates to a cooling system in which the fan output is determined by an output control from the characteristic curves of the fan motor, the operating parameters of the cooling system and the reference input variables predetermined in the form of temperature levels. Different characteristic curves for the activation of the fan motor are here assigned to the different set temperature levels. If the reference input variable for the control changes, this also results in a change of the characteristic curves for activation of the fan motor. In order to prevent the fan motor starting to howl, in the event of a change in the reference input variable for the fan control the operation of the fan motor is kept constant for an adjustable minimum waiting time.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: November 25, 2008
    Assignee: Daimler AG
    Inventors: Hans Braun, Ralf K├Ârber, Michael Timmann, Jochen Weeber
  • Patent number: 7455241
    Abstract: A method of determining a temperature of a coolant in a coolant circulation system is disclosed. The coolant circulation system includes a coolant flow valve having a valve housing and an expansion element provided in the valve housing for controlling flow of the coolant through the valve housing. According to the method, an ohmic resistance of the expansion element is measured. The temperature of the coolant is determined by correlating the ohmic resistance of the expansion element with the temperature of the coolant.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: November 25, 2008
    Assignee: General Motors Corporation
    Inventor: Oliver Maier
  • Patent number: 7406835
    Abstract: A cooling system for cooling a plurality of heat producing systems includes a heat exchanger having a plurality of cooling zones, each of which has a respective inlet and outlet for facilitating flow of a respective temperature control fluid therethrough. Each of the respective temperature control fluids facilitates temperature control of a respective heat producing system. A plurality of fans cool the temperature control fluids flowing through the heat exchanger, and a fan or fans are disposed proximate each zone of the heat exchanger to provide air flow substantially independently from the air flow over the other cooling zones.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: August 5, 2008
    Assignee: EMP Advanced Development, LLC
    Inventors: David J. Allen, Mark S. Bader, Robert D. Chalgren, Jr., Michael P. Lasecki, Michael W. Martin, Keith Brannstrom
  • Patent number: 7370812
    Abstract: A control device of a vehicle radiator system mainly has a temperature comparator, a temperature sensor, a keyboard and a display. The temperature sensor is positioned near an engine of the vehicle and outputs a detecting signal to the temperature comparator. Since the temperature comparator has a preset temperature value, the temperature comparator compares the preset temperature value with a current temperature value in the detecting signal to determine whether a start signal is output to a water gate driver device and a fan driver to open the water gate and start the fan drive. Since the vehicle driver sets the current temperature value through the keyboard and the preset temperature value is lower than an original fixed over-heat temperature value in the radiator system, the radiator system can be started appropriately to ensure the engine works at a safe temperature condition to prevent damage to its components.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: May 13, 2008
    Inventor: Yung-Yu Chang
  • Patent number: 7343752
    Abstract: When a temperature of cooling water detected by a water temperature sensor is, for instance, higher than, or equal to degrees, and is smaller than degrees, an abnormal state judging unit judges that an engine is under semiwarming-up condition, and then forcibly drives an electric motor fan so as to forcibly cool cooling water contained in a radiator. After the abnormal state judging unit has forcibly driven the electric motor fan, this abnormal state judging unit calculates a difference between the cooling water temperature detected by the water temperature sensor and a predicted cooling water temperature. When the calculated temperature difference is smaller than a predetermined abnormal state judging value, the abnormal state judging unit judges that a thermostat provided in a cooling water circulating path is brought into an abnormal valve opening state.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: March 18, 2008
    Assignee: Fujitsu Ten Limited
    Inventor: Nobuyuki Nishiwaki
  • Patent number: 7320434
    Abstract: An electronically controlled thermostat control method is obtained which makes it possible to eliminate the response delay from the time that the required cooling water temperature is set to the time that the actual cooling water temperature reaches the set water temperature by controlling the flow rate, and to realize high cooling water temperature tracking characteristics with a high degree of precision at a low cost.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: January 22, 2008
    Assignee: Nippon Thermostat Co., Ltd.
    Inventors: Norio Suda, Hiroshi Suda, Mitsuhiro Sano, Daisuke Tsukamoto, Masahiro Aburakawa
  • Patent number: 7299993
    Abstract: An apparatus for detecting a failure of a thermostat provided between an engine and a radiator is provided. The thermostat regulates circulation of cooling water between the engine and the radiator. The apparatus comprises a radiator water temperature sensor disposed on the radiator side relative to the thermostat and a controller. The controller performs a process for detecting a failure of the thermostat based on the output of the radiator water temperature sensor when the engine has reached a desired warm condition. In one example, it is determined whether the engine has reached the desired warm condition based on the output of the engine water temperature sensor that is provided in the engine side relative to the thermostat. In another example, it is determined whether the engine had reached the desired warm condition according to whether a vehicle-related process is activated.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: November 27, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventors: Toshinori Tsukamoto, Eisaku Gosyo
  • Patent number: 7210846
    Abstract: A thermostat housing assembly (10, 100) includes a housing (12, 102) having a flange (16, 106) for mounting the housing (12, 102) on a support structure and a tubular spout (18, 108) extending from the flange (16, 106) and defining a passageway (20, 110). The flange (16, 106) presents a mounting face (26, 112) defining a seal groove (28, 114) extending annularly about the flange (16, 106) opening and having opposing side walls (32, 34, 116, 118). A seal (36, 124) is disposed in the seal groove (28, 114) for sealing the flange (16, 106) to the support structure. The seal (36, 124) has annular rings (42, 44, 126, 128). The opposing side walls (32, 34, 116, 118) include opposing channels (38, 40, 120, 122) defined therein to mechanically engage the annular rings (42, 44, 126, 128) extending radially into the opposing channels (38, 40, 120, 122) for retaining the seal (36, 124) in the seal groove (28, 114).
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: May 1, 2007
    Assignee: Mathson Industries
    Inventor: Boney A. Mathew
  • Patent number: 7172135
    Abstract: A thermostat independently controlling cooling water passages of two circuits, including a first valve body having first and second passages in constant communication. A third passage is selectively connected to those passages. Communication of the third passage is disconnected when the cooling water temperature is below a prescribed temperature, and the valve is opened when the cooling water temperature is equal to or higher than the prescribed temperature. A second valve body, having fourth and fifth passages selectively in communication, closes the valve to disconnect those passages when the cooling water temperature is below the prescribed temperature, and opens the valve by operating the first valve body to link the passages when the cooling water temperature is equal to or higher than the prescribed temperature. A tubular sleeve prevents first and second control chambers, respectively including the first and second valve bodies, from communicating with each other.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: February 6, 2007
    Assignee: Nippon Thermostat Co., Ltd.
    Inventors: Takashi Masuko, Akira Mori, Toru Yoshihara
  • Patent number: 6966278
    Abstract: An electronically controlled thermostat enabling stable valve body actuation, preventing overshooting and hunting, and with reduced size and simplified construction. The thermostat can execute arbitrary variable control of cooling water temperature and includes a thermo-element having a piston actuating opening and closing within a housing of a first valve body and a second valve body to switch the flow path of cooling water by sensing the cooling water temperature and an element guide member holding the thermo-element within the housing. A temperature-sensing chamber is formed by isolation by the element guide member from the flow path in which cooling water on the radiator exit side flows; the temperature-sensing portion of the thermal element is disposed to face this chamber. A linking hole transmits the temperature of cooling water on the radiator exit side from within the flow path to the temperature-sensing portion within the temperature-sensing chamber.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: November 22, 2005
    Assignee: Nippon Thermostat Co., Ltd.
    Inventor: Masanori Takahashi
  • Patent number: 6942221
    Abstract: A sealed flange includes a seal (203 or 901) and a flange (201 or 801). The outer perimeter of a flange (201 or 801) has tabs (303 or 803) interspaced with notches (601 or 805). The outer perimeter of a seal (203 or 901) has spacers (305 or 903) interspersed with gaps (501 or 909). When the seal (203 or 901) is disposed along the outer perimeter of the flange (201 or 801), the tabs (303 or 803) fit in the gaps (501 or 909) of the seal (203 or 901) while the spacers (305 or 903) fit in the notches (601 or 805) of the flange (201 or 801). The outer perimeter of the sealed flange comprises the outermost edges of the tabs (303 or 803) of the flange (201 or 801) and the outmost edges of the spacers (305 or 903) of the seal (203 or 901).
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: September 13, 2005
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Philip D. Keeley, John A. Serio
  • Patent number: 6843210
    Abstract: A thermostatic valve for a coolant circuit of an internal combustion engine, with a housing through which the flow is capable of passing and which has a first throughflow orifice for connection to a first coolant line, a second throughflow orifice for connection to a second coolant line, and a third throughflow orifice for connection to a third coolant line, and with a closure member which is mounted in the housing and which can be adjusted by an actuating unit, the closure member having a first shut-off element for shutting off the first throughflow orifice and a second shut-off element, coupled to the first shut-off element, for shutting off the second throughflow orifice.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: January 18, 2005
    Assignee: DaimlerChrysler AG
    Inventors: Werner Engelin, Hartmut Engels, Erhard Rau, Jochen Weeber, Frank Weinert
  • Patent number: 6817321
    Abstract: A control to enable a further degree of enhancement in combustion efficiency in an automobile by effectively performing temperature control of cooling water in an automobile engine in accordance with various states of operation. Parameters from a variety of sensors that detect the state of an automobile engine are input into an engine control unit. Then, when the engine control unit determines from values of the accelerator opening and engine rotation speed, which serve as parameters indicating the operating state of the automobile, that the engine load is about to decrease, control is performed in the electronic control thermostat to maintain the cooling water temperature at a high temperature. Conversely, when it is determined that medium or high loads are due to increase, the control method is switched such that the electronic control thermostat is controlled by reading a target temperature corresponding to these parameter values from the engine control unit.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: November 16, 2004
    Assignee: Nippon Thermostat Co., Ltd.
    Inventors: Toshiharu Takei, Yuichi Murata
  • Patent number: 6796375
    Abstract: A coolant circuit (10) includes at least one heat source (12), a radiator (14), and a bypass line (22), which connects a radiator inlet (18) to a radiator return (20) and whose junction (24) has a control valve (26) disposed on it, whose throttle body (58) can be electrically triggered as a function of operating parameters and environmental parameters by means of at least one control unit (40, 42) and divides the coolant flow between the radiator inlet (18) and the bypass line (22). According to a characteristic curve of the control valve (26), the control unit (40, 42) determines a set-point value (50) for the position of the throttle body (58), which sets a ratio of the radiator volume flow to the total coolant flow at the control valve (26).
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: September 28, 2004
    Assignee: Robert Bosch GmbH
    Inventor: Martin Williges
  • Publication number: 20030183700
    Abstract: A method is provided for facilitating the cooling of engine coolant flowing through a radiator operatively connected to the engine. The method includes the steps of monitoring the temperature of the engine coolant flowing through the radiator and positioning a fan adjacent the radiator. The fan is initially rotated at a predetermined speed. Thereafter, the speed of the fan is varied in response to the temperature of the engine coolant.
    Type: Application
    Filed: March 17, 2003
    Publication date: October 2, 2003
    Inventors: Robert D. Kern, Gerald C. Ruehlow, Bret Baird, Allen Gillette
  • Patent number: 6601544
    Abstract: In a thermoset valve for a cooling circuit of an internal combustion engine of the type having a housing (11) containing a thermostatic operating element (10) whose piston (12) actuates a valve element (13), a base plate (17) is affixed to the housing (11) and supports a fixed abutment (25) for a restoring spring (24) which loads the valve element (13).
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: August 5, 2003
    Assignee: Behr Thermot-Tronik GmbH
    Inventors: Waldemar Friesenhahn, Ulrich Dehnen, Barbu Frunzetti
  • Patent number: 6578769
    Abstract: A thermostat housing assembly (10) presents a mounting face (22) including n outer seal (26) disposed in an outer seal groove (24) and an inner seal (32) disposed in an inner seal groove (30). The outer seal (26) includes a lip (38) extending radially inwardly to a distal end cantilevered over the annular wall for retaining the flow control valve (14) in the recess (28). A channel (42) extends radially between the seal grooves (24) and (30) for receiving each of a plurality of spokes (40). A shoulder (46) on each of the spokes (40) snaps over an undercut (44) in each of the channels (42).
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: June 17, 2003
    Assignee: Mathson Intellectual Technology Inc.
    Inventors: Boney A. Mathew, Carl S. Howarth
  • Publication number: 20020121554
    Abstract: The present invention relates to a water-type cooling unit for a vehicle equipped with an internal-combustion engine, the unit being connected via a main circulation loop formed by appropriate conduits, in particular to at least one radiator for cooling the water or the similar coolant and to the circuits for cooling the cylinder block and the cylinder heads.
    Type: Application
    Filed: October 25, 2001
    Publication date: September 5, 2002
    Applicant: Mark IV Systemes Moteurs (Societe Anonyme)
    Inventors: Jean-Paul Vaudry, Richard Komurian, Anthony Alves
  • Patent number: 6349882
    Abstract: A controlling device for a hydraulically operated cooling fan capable of obtaining optimum cooling efficiency by continuously controlling a rotational frequency of the cooling fan according to a cooling water temperature, a hydraulic oil temperature, and an engine speed is provided.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: February 26, 2002
    Assignee: Komatsu Ltd.
    Inventors: Ikuo Kita, Toshikazu Okada, Atsushi Uemura, Shigeru Yamamoto, Tomohiro Nakagawa
  • Patent number: 6045051
    Abstract: A cover/case similar to an already known model or plastic form is used, of the type defined by an inlet conduit (1) with access to the compartment (2) for positioning the thermostatic valve, and having an opening region in which there is configured a coupling flange (4) with holes (5) for fixing screws at the point of linking the radiator hose to the engine.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: April 4, 2000
    Assignee: Wahler Metalurgica Ltda.
    Inventor: Joao Jose Cardinali Ieda
  • Patent number: 5960860
    Abstract: This invention relates to a water temperature control device for a cooling system having a reduced number of parts. The water temperature control device circulates cooling water to a water pump through either a radiator or a bypass line depending on the temperature of the cooling water from the water jacket of automobile engine. The water temperature control device provides an improved thermostat seal and prevents piston release of a pellet assembly. The invention comprises a water temperature control device having a case main body formed with a cooling water inlet, a cooling water outlet and a bypass outlet. A valve means is elastically mounted by a spring supported to a frame within the interior of the case main body. A dome type bridge, which holds a front end of the piston of the thermostat, is formed at the interior of the water cooling outlet of the case main body. The front end portion is passed through a pierced hole at the bridge top portion.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: October 5, 1999
    Assignee: Hyundai Motor Company
    Inventor: Jung-Shik Kim
  • Patent number: 5961039
    Abstract: A thermostat comprises a case (1) forming an elbow through which extends a fluid passageway 2 comprising a fluid inlet region (22) and a fluid outlet region (21) and containing a thermostatic element (3). The thermostatic element (3) includes a fixed part (31), a movable part (32) which carries a closing device (4) cooperating with a seat (23), a bridge (5) in which the movable part (32) is slidable, and a spring (6) biasing the bridge (5) away from the closing device (4). The case (1) is in one piece; the fixed part (31) bears against the wall of the passageway (2); the inlet region (22) comprises inwardly extending projections (19) for blocking movement of the bridge (5) caused by the spring before mounting the thermostat on a support.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: October 5, 1999
    Assignee: Vernet S.A.
    Inventors: Jean Chamot, Claude Henault
  • Patent number: 5844463
    Abstract: The present invention relates to a process for regulating the temperature of a fluid circuit comprising a thermostatic valve, which consists in maintaining a leak rate through the valve once the valve has been opened a first time in order to eliminate the temperature fluctuations of the fluid around a regulation temperature. Two thermodilatable elements with different expansion temperature thresholds are used. The invention further relates to a thermostatic valve intended to regulate the temperature of a fluid around at least one value and comprising at least a first thermodilatable element. The valve further includes a second thermodilatable element for maintaining a controlled leak rate as soon as the valve has been opened (a first time).
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: December 1, 1998
    Assignee: Institute Francais du Petrole
    Inventor: Jean Trapy
  • Patent number: 5279264
    Abstract: A viewable thermostat device for providing visual confirmation of the proper operation of a thermostat in operating engines having a fluid coolant is provided by the utilization of a transparent thermoplastic housing having means for capturing the annular flange of the thermostat and maintaining the thermostat perpendicular to the direction of flow of the coolant while allowing a visual confirmation of the proper operation of the thermostat. The transparent thermoplastic housing is preferably formed from a transparent polyurethane or polycarbonate plastic and may include curved surfaces for optically enhancing the visual inspection of the operation of the thermostat as well as covers or sleeves for protecting the clear plastic from exterior abrasion or dirt. The viewable thermostat device is applicable to in-line installation as well as installations directly connected to the engine block to provide visual confirmation of the proper operation of the thermostat during engine operation.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: January 18, 1994
    Assignee: In-Line Products Incorporated
    Inventors: Johnny C. Simmons, Robert P. Fowler
  • Patent number: 5033865
    Abstract: A thermo-actuator has a steel rod, a guide member slidably mounted on the rod, a spool seal secured to the guide member, a heat conductive cylinder secured to the guide member, and wax pellets provided in the cylinder. The spool seal has a thin layer, so that the spool seal engages with the rod by a vacuum generated in the spool seal. The thickness of the spool seal is between 5% to 25% of the diameter of the steel rod.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: July 23, 1991
    Inventor: Yoshikazu Kuze
  • Patent number: 4913107
    Abstract: A liquid cooling circulation system for power and working machines (especially internal combustion engines) contains an air-separating tank (17) in a by-pass vent line (14) which is arranged at the high point (5') of the radiator inflow (5). A fill inlet (19) with connecting openings (5" and 17') to the radiator inflow (5) and air-separating tank (17) have a closure cover (20) which closes off these connecting openings with respect to one another. Excess pressure, vacuum and vent valves (21 and 22) are contained in the closure cover 20 which controls a line connection (25) to an atmospheric, or to an excess pressure expansion tank (27). A highly effective venting function in conjunction with an engine operation at strong rotational speed changes exists, since the line connection (25) is opened at least at low cooling medium temperature by means of a temperature-controlled vent valve (22).
    Type: Grant
    Filed: January 18, 1989
    Date of Patent: April 3, 1990
    Assignee: BMW
    Inventor: Erwin Schweiger
  • Patent number: 4289815
    Abstract: A pouch for the controlled release of active ingredients into an aqueous medium comprising liquid or solid active ingredients enclosed in a sealed envelope of cold water-insoluble polyvinyl alcohol.
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: September 15, 1981
    Assignee: Airwick Industries, Inc.
    Inventor: Ping I. Lee
  • Patent number: 3952946
    Abstract: A thermostatic valve comprises a housing having a valve seat and opposed openings in its wall for circulating coolant; a spring surrounds the housing and a valve plate is positioned for abutment against and retraction from the seat with the valve plate supporting a thermostatic operating element which bears against the inner surface of the housing to activate the valve plate depending on the temperature of the coolant. The valve plate has elastic arms, each arm having a free end to interfit into one of the opposed openings in the housing. The valve plate is assembled with the housing by force fitting the elastic arms into the openings and a compressive spring surrounding the housing is held in position between the protruding flanks of the housing and the outwardly extending projection of the arms in the openings.
    Type: Grant
    Filed: July 12, 1974
    Date of Patent: April 27, 1976
    Inventor: Bernhard W. Braukmann