WO2015029058A2 - Boîtier de thermostat pour un thermostat d'un agencement de refroidissement de moteur - Google Patents

Boîtier de thermostat pour un thermostat d'un agencement de refroidissement de moteur Download PDF

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Publication number
WO2015029058A2
WO2015029058A2 PCT/IN2014/000537 IN2014000537W WO2015029058A2 WO 2015029058 A2 WO2015029058 A2 WO 2015029058A2 IN 2014000537 W IN2014000537 W IN 2014000537W WO 2015029058 A2 WO2015029058 A2 WO 2015029058A2
Authority
WO
WIPO (PCT)
Prior art keywords
thermostat
fluid
coolant
sensor
housing
Prior art date
Application number
PCT/IN2014/000537
Other languages
English (en)
Other versions
WO2015029058A3 (fr
Inventor
Rao Boita DHANANJAYA
Prakash Ghare PRAFULLA
Karthikeyan VENKATACHALAM
Swaroop PARTH
Pradeep MOHANKUMAR
Pandiyan SENTHUR
Velusamy Ramasamy
Original Assignee
Mahindra & Mahindra Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahindra & Mahindra Limited filed Critical Mahindra & Mahindra Limited
Priority to EP14841252.1A priority Critical patent/EP3039262A4/fr
Priority to US14/914,999 priority patent/US20160208677A1/en
Publication of WO2015029058A2 publication Critical patent/WO2015029058A2/fr
Publication of WO2015029058A3 publication Critical patent/WO2015029058A3/fr

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/021—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste
    • G05D23/022—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste the sensing element being placed within a regulating fluid flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control

Definitions

  • the present disclosure relates to a cooling arrangement. More particularly, the present disclosure relates to thermostat housing for a thermostat used for detecting temperature of engine coolant used in an engine cooling arrangement.
  • An engine cooling system includes a coolant flow passage formed around a cylinder block of an engine for extracting heat generated in the engine during operation of the engine.
  • the heated coolant is then circulated to a radiator with the help of a pump for dissipating the extracted heat, wherein the heated coolant is cooled down by air-flow and the cooled coolant is circulated back to the coolant flow passage to repeat the cycle of heat extraction from the engine.
  • the flow of engine coolant to the radiator is governed based on temperature of the engine coolant detected by a thermostat. The thermostat should accurately detect the temperature of the engine coolant and allow or by-pass coolant flow to the radiator.
  • inlet controlled thermostats wherein based on the temperature of the engine coolant detected by the thermostat, the coolant from cylinder block is by-passed from a pump directing coolant to the radiator during engine warm up condition.
  • a control valve is activated and the coolant is directed via the pump that directs the coolant to the radiator.
  • the thermostat accurately detects the temperature of the engine coolant as the flow of coolant between the radiator and the engine is controlled based on the coolant temperature detected by the thermostat.
  • the accuracy of the thermostat depends upon configuration of the thermostat housing that should facilitate sufficient contact between the coolant and the thermostat, particularly, the thermostat housing should enhance coolant flow over the thermostat.
  • a variety of thermostat housing having different configuration are known in the prior art
  • the US Published Patent Application, US2012312884 discloses a thermostat device.
  • the thermostat device is provided with a casing (2) which comprises a first coolant flow path (2B), a second coolant path (2D), and a thermostat accommodating part communicating with the first and second coolant flow paths, a cover (3) which comprises a third coolant flow path (2C) communicating with the thermostat accommodating part and covers the thermostat accommodating part, and a thermostat (10) which comprises a thermo-element (lOh) that moves forward and backward according to the change of the temperature of a coolant flowing through the thermostat accommodating part.
  • the thermostat device is provided with a temperature sensor (20) which is provided to face the inside of the thermostat accommodating part and detects the temperature of the coolant.
  • a sensor mounting part (21) which is provided with the temperature sensor therein is provided integrally at the inner end of the cover, and a lead connecting part (25) which is drawn to the outside from the temperature sensor is provided integrally at the outer end of the cover.
  • the US Granted Patent US5410991 discloses coolant fill housing with integral thermostat.
  • the apparatus includes a fill housing having an inlet section, an outlet section and a fill section configured to receive a cap thereon.
  • the inlet section is formed to include a valve seat and a flange for coupling the fill housing to an engine.
  • the apparatus also includes a thermostat and means for coupling the thermostat to the flange to hold the thermostat within the inlet section beneath an outer surface of the flange.
  • the fill housing is formed to include a venturi portion located between the inlet section and the outlet section to provide a pressure drop in the fill housing as fluid flows through the fill housing.
  • the venturi portion is located adjacent the fill section to subject the fill section to the pressure drop as fluid flows through the fill housing.
  • the WIPO Published Patent Application WO2012072654 discloses a thermostat valve (1) for a cooling system of an internal combustion engine with a coolant stoppage function.
  • the thermostat valve (1) for the cooling system includes a first bypass valve element (31) and a second bypass valve element (6), a main valve element (30) to be arranged in a counterpart (2) to a connection (22) to a coolant radiator, and a cross-member (4) to be arranged between an engine outlet (21) and an engine inlet (20), which cross-member (4) forms a valve seat for the first bypass valve element (31) and the second bypass valve element (6), wherein, on its outer side, the cross-member (4) has a collar (41) which forms an axial supporting region for the counterpart (2) and which is loaded in the axial direction (I) by a compression spring (7), with the result that the collar (41) is forced in the direction of the counterpart (2).
  • the US Granted Patent US4653688 discloses a choke type thermostat.
  • the choke- type thermostat is provided with a bypass valve.
  • the inventive thermostat has a pliable valve member which prevents flow to an engine coolant bypass when the thermostat is in the completely open position in regards to an engine radiator outlet. Valving of the engine coolant bypass provides maximum flow to the radiator outlet when the thermostat is in the open position. Since the engine bypass is valved off by the thermostat when the thermostat is in the open position the diameter of the engine coolant bypass may be increased therefore allowing increased flow there-through when the thermostat is in a closed position.
  • the US Granted Patent US6364213 discloses an integrated fluid recovery reservoir and thermostat assembly.
  • the integrated fluid recovery reservoir and thermostat assembly includes a coolant reservoir housing 26 which is mounted directly to the engine 14 and which includes inlet ports 28, 30 for receiving coolant 38 from engine 14 and an outlet flow portion or module 46 which is fluidly coupled to the radiator 18.
  • the assembly 10 further includes a flow control module and thermostat assembly 42 which is attached to the reservoir housing 26 and which selectively and fluidly communicates with the reservoir housing 26, with the coolant pump 20 and with the radiator 18.
  • a thermostat valve 72 is attached to and/or within assembly 42 and cooperates with assembly 42 to selectively control the flow of the coolant 38 through the engine cooling system 10.
  • the thermostat 72 is integrated within a fill cap 54, which allows the system 10 to be easily filled with coolant and allows the thermostat 72 to be easily serviced or replaced.
  • none of the above mentioned prior art documents disclose any provision for profiling the flow-paths of the thermostat housing for modifying flow-path line of the coolant for facilitating sufficient contact between the coolant and the thermostat. Further, none of the above mentioned prior art documents disclose any provision for achieving coolant flow restriction for facilitating sufficient contact between the coolant and the thermostat.
  • thermostat housing for use in a cooling arrangement that facilitate sufficient contact between the coolant and the thermostat by enhancing coolant flow over the thermostat, thereby improving accuracy of the thermostat in sensing coolant temperature and resulting in efficient operation of the engine cooling system. Still further, there is a need for thermostat housing for an engine cooling arrangement that improves coolant flow path around the thermostat, thereby enhancing accuracy of the thermostat and resulting in accurate functioning of the engine cooling arrangement. Still further, there is a need for thermostat housing that provides better controllability of the engine coolant flow between the radiator and the engine and engine coolant temperature, thereby permitting engine operation even at higher coolant temperatures and resulting in less CO 2 emissions.
  • An object of the present disclosure is to provide thermostat housing for use in a cooling arrangement that facilitate sufficient contact between the coolant and the thermostat by enhancing coolant flow over the thermostat, thereby improving accuracy of the thermostat in detecting coolant temperature.
  • Yet another object of the present disclosure is to provide thermostat housing that provides better controllability of the engine coolant flow and engine coolant temperature, thereby permitting engine operation even at higher coolant temperatures and resulting in less C0 2 emissions.
  • a sensor housing is disclosed in accordance with an embodiment of the present disclosure.
  • the sensor housing includes a body, at least one receiver, at least one fluid flow director member, at least one fluid retainer member.
  • the body defines an enclosure that receives fluid.
  • the at least one receiver is configured on the body and receives and holds at least one sensor that determines at least one pre- detemined property associated with fluid directed thereto as the fluid comes in contact with the at least one sensor.
  • the at least one fluid flow director member is configured on at least one internal wall of the enclosure and defines flow path of the fluid through the enclosure so as to direct the fluid to the at least one sensor and facilitate sufficient contact between fluid and the at least one sensor to ensure precise sensing of the at least one pre-detemined property associated with the fluid by the at least one sensor.
  • a housing for a thermostat of a cooling arrangement for an engine of a vehicle includes a body, a receiver cavity, at least one fluid flow director member and at least one fluid retainer member.
  • the body defines an enclosure that receives coolant fluid of the cooling arrangement after the coolant fluid has extracted heat from the engine.
  • the enclosure is in fluid communication with a pump that pumps the coolant fluid to a sink of the cooling arrangement for dissipating heat extracted by the coolant fluid from the engine.
  • the receiver cavity is configured on the body and receives and holds the thermostat that determines temperature of coolant fluid directed thereto as the coolant fluid comes in contact with the thermostat.
  • the at least one fluid flow director member is configured on at least one internal wall of the enclosure and defines flow path of the coolant fluid through the enclosure so as to direct coolant fluid to the thermostat and facilitate sufficient contact between coolant fluid and the thermostat to ensure precise sensing of temperature of coolant fluid by the thermostat.
  • the at least one fluid retainer member is configured on the body and is disposed around the thermostat and prevents the coolant fluid from directly reaching suction of the pump by bypassing of the thermostat, thereby retaining the coolant fluid in contact with the thermostat for a pre-detemined time to ensure precise sensing of temperature of coolant fluid by the thermostat.
  • the at least one sensor is selected from a group consisting of pH sensor, concentration sensor and temperaturer sensor.
  • the at least one fluid flow director member is a profiled by-pass gallery configured on the at least one internal wall of the enclosure.
  • the at least one fluid flow director member is a flap configured on the at least one internal wall of the enclosure.
  • the at least one fluid retainer member is a flow balancer rib that is configured on a valve rest face of thermostat and is disposed around the thermostat.
  • the flow balancer rib balances coolant flow to the pump and the thermostat.
  • Figure 1 illustrates a schematic representation of conventional thermostat housing without any provision for ensuring sufficient contact between the coolant and the thermostat, particularly, conventional thermostat housing without any profiling and flow balancer ribs in accordance with the prior art;
  • FIG. 2 illustrates a schematic representation of thermostat housing with provision for ensuring sufficient contact between the coolant and the thermostat, particularly, thermostat housing with profiled coolant by-pass gallery and flow balancer ribs in accordance with an embodiment of the present disclosure
  • Figure 3 illustrates a schematic representation of simulation of flow path lines depicting coolant flow through the thermostat housing of Figure 2;
  • Figure 4 illustrates a 3-D representation of the profiled coolant by-pass gallery configured on the thermostat housing for enhancing contact between the coolant and the thermostat;
  • Figure 5a illustrates a 3-D representation of a flow balancer rib configured on the thermostat housing for enhancing contact between the coolant and the thermostat;
  • Figure 5b illustrates another view of the flow balancer rib of Figure 5 a.
  • the present disclosure envisages thermostat housing for a thermostat used for detecting temperature of engine coolant used in an engine cooling arrangement. More specifically, the thermostat housing enhances contact between the coolant and the thermostat by enhancing bypass coolant flow over the thermostat, thereby improving accuracy of the thermostat in detecting coolant temperature for efficient operation of the engine cooling system.
  • the thermostat housing also provides better controllability of the engine coolant flow and engine coolant temperature, thereby permitting engine operation even at higher coolant temperatures and resulting in less C0 2 emissions.
  • FIG. 1 illustrates a schematic representation of conventional thermostat housing 10 without any provision for enhancing contact between the coolant and the thermostat, particularly, conventional thermostat housing 10 without any profiling and flow balancer ribs for improving coolant flow over the thermostat.
  • the thermostat fails to accurately detect the temperature of the engine coolant and as such the flow of coolant between the radiator and the engine is not controlled accurately.
  • the engine cooling system fails to achieve efficient cooling of the engine and the engine requires frequent maintenance. Further inefficient cooling of the engine may ultimately cause failure of the engine and the service life of the engine is drastically reduced. Accordingly for efficient operation of the engine cooling system it is necessary that the thermostat accurately detects the temperature of the engine coolant and the flow of coolant between the radiator and the engine is controlled.
  • thermostat housing 10 For achieving accurate detection of the temperature of the engine coolant by the thermostat it is necessary that there is sufficient contact between the coolant and the thermostat that can be attained by providing provisions for efficient flow of coolant over the thermostat in the thermostat housing. Further, with such configuration of conventional thermostat housing 10, the thermostats are disposed near the radiator and isolated from the engine. Still further, with such configuration of conventional thermostat housing 10, there is delay in thermostat opening and complete blockage of coolant flow from the radiator, thereby resulting in engine seizure due to overheating.
  • a sensor housing is disclosed in accordance with an embodiment of the present disclosure.
  • the sensor housing includes a body, at least one receiver, at least one fluid flow director member, at least one fluid retainer member.
  • the body defines an enclosure that receives fluid.
  • the at least one receiver is configured on the body and receives and holds at least one sensor that determines at least one pre- detemined property associated with fluid directed thereto as the fluid comes in contact with the at least one sensor.
  • the at least one fluid flow director member is configured on at least one internal wall of the enclosure and defines flow path of the fluid through the enclosure so as to direct the fluid to the at least one sensor and facilitate sufficient contact between fluid and the at least one sensor to ensure precise sensing of the at least one pre-detemined property associated with the fluid by the at least one sensor.
  • FIG. 2 illustrates a schematic representation of a thermostat housing 20 with provision for enhancing contact between the coolant and the thermostat, particularly, the thermostat housing 20 is provided with at least one fluid flow director member, particularly, at least one profiled coolant by-pass gallery 12 and at least one fluid retainer member, particularly at least one flow balancer ribs 14 configured in the thermostat housing 20 for enhancing coolant flow over the thermostat, improving accuracy of the thermostat in detecting coolant temperature for achieving efficient operation of the engine cooling system.
  • the thermostat housing 20 for a thermostat of a cooling arrangement for an engine of a vehicle is disclosed.
  • the thermostat housing 20 includes a body "B", a receiver cavity “C”, the at least one fluid flow director member, particularly, the at least one profiled coolant by-pass gallery 12 and at least one fluid retainer member, particularly, at least one flow balancer ribs 14.
  • the body “B” defines an enclosure that receives coolant fluid of the cooling arrangement after the coolant fluid has extracted heat from the engine (not illustrated).
  • the enclosure is in fluid communication with a pump (not illustrated) that pumps the coolant fluid to a sink, particularly, a radiator (not illustrated) of the cooling arrangement for dissipating heat extracted by the coolant fluid from the engine.
  • the receiver cavity “C” is configured on the body and receives and holds the thermostat “T” that determines temperature of coolant fluid directed thereto as the coolant fluid comes in contact with the thermostat "T”.
  • the at least one fluid flow director member, particularly, the at least one profiled coolant by-pass gallery 12 is configured on at least one internal wall of the enclosure and defines flow path of the coolant fluid through the enclosure so as to direct coolant fluid to the thermostat "T” and facilitates sufficient contact between coolant fluid and the thermostat "T" to ensure precise sensing of temperature of coolant fluid by the thermostat "T".
  • the at least one fluid retainer member particularly, at least one flow balancer ribs 14 is configured on the body "B” and is disposed around the thermostat “T” and prevents the coolant fluid from directly reaching suction of the pump by bypassing of the thermostat "T", thereby retaining the coolant fluid in contact with the thermostat "T” for a pre-detemined time to ensure precise sensing of temperature of coolant fluid by the thermostat "T".
  • the coolant by-pass gallery 12 modifies the flow path of the coolant flowing through the thermostat housing 20 for better contact of the coolant with the thermostat and better cooling of the thermostat.
  • Figure 3 illustrates a schematic representation of simulation of flow path lines 16 depicting coolant flow through the thermostat housing 20.
  • Figure 4 illustrates a 3-D representation of the profiled coolant by-pass gallery 12 configured on the thermostat housing 20 for enhancing contact between the coolant and the thermostat, wherein the profiling 12a configured on the housing improves the flow of the coolant over the thermostat.
  • the coolant by-pass flow from the engine block is along direction "A" illustrated in Figure 2 and Figure 4.
  • the rib 14 acts as an obstruction and the coolant flow path is directed back to the thermostat "T” and the coolant is maintained in contact with the thermostat "T” for a longer period of time, thereby ensuring precise sensing of temperature of coolant fluid by the thermostat "T".
  • the thermostat housing 20 also includes at least one flow balancer ribs 14 configured in the thermostat housing 20 for enhancing coolant flow over the thermostat, thereby further improving the accuracy of the thermostat in detecting coolant temperature for achieving efficient operation of the engine cooling system.
  • Figure 5a illustrates a 3-D representation of a flow balancer rib 14 configured on the thermostat housing 20 for ensuring sufficient contact between the coolant and the thermostat.
  • Figure 5b illustrates another view of the flow balancer rib 14.
  • the flow balancer rib 14 is configured on the valve rest face of the thermostat and restricts the coolant flow passing directly to the suction of the coolant pump, accordingly, fraction of coolant flow passing to the coolant pump and the thermostat is balanced, thereby ensuring higher coolant flow over the thermostat and better controllability of the engine coolant flow and the engine coolant temperature.
  • thermostat housing for use in a cooling arrangement that facilitate sufficient contact between the coolant and the thermostat by enhancing coolant flow over the thermostat, thereby improving accuracy of the thermostat in detecting coolant temperature;
  • thermostat housing for use in a cooling arrangement that facilitates sufficient contact between the coolant and the thermostat, thereby resulting in efficient operation of the engine cooling system; • thermostat housing that improves coolant flow path around the thermostat, thereby enhancing the accuracy of the thermostat that results into improved reliability of engine components;
  • thermostat housing that provides better controllability of the engine coolant flow and the engine coolant temperature, thereby permitting engine operation even at higher coolant temperatures and resulting in less C0 2 emissions.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Temperature-Responsive Valves (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

L'invention concerne un boîtier pour un thermostat, qui comprend un corps, une cavité, au moins un élément de direction et au moins un élément de retenue. Le corps définit une enveloppe qui reçoit un fluide réfrigérant. L'enveloppe est en communication fluidique avec une pompe qui pompe le fluide réfrigérant dans un dissipateur pour dissiper la chaleur extraite par le fluide réfrigérant. La cavité configurée sur le corps reçoit et retient le thermostat qui détermine une température du fluide réfrigérant. L'élément de direction est configuré sur au moins une paroi interne de l'enveloppe et définit un trajet d'écoulement du fluide réfrigérant de façon à diriger le fluide réfrigérant vers le thermostat et à faciliter un contact suffisant entre le fluide réfrigérant et le thermostat, et l'élément de retenue configuré sur le corps est disposé autour du thermostat pour empêcher le fluide réfrigérant de contourner le thermostat, en maintenant ainsi le fluide réfrigérant en contact avec le thermostat pour assurer une détection précise de température par le thermostat.
PCT/IN2014/000537 2013-08-28 2014-08-21 Boîtier de thermostat pour un thermostat d'un agencement de refroidissement de moteur WO2015029058A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14841252.1A EP3039262A4 (fr) 2013-08-28 2014-08-21 Boîtier de thermostat pour un thermostat d'un agencement de refroidissement de moteur
US14/914,999 US20160208677A1 (en) 2013-08-28 2014-08-21 Thermostat housing for a thermostat of an engine cooling arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2811/MUM/2013 2013-08-28
IN2811MU2013 IN2013MU02811A (fr) 2013-08-28 2014-08-21

Publications (2)

Publication Number Publication Date
WO2015029058A2 true WO2015029058A2 (fr) 2015-03-05
WO2015029058A3 WO2015029058A3 (fr) 2015-06-04

Family

ID=52587440

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2014/000537 WO2015029058A2 (fr) 2013-08-28 2014-08-21 Boîtier de thermostat pour un thermostat d'un agencement de refroidissement de moteur

Country Status (4)

Country Link
US (1) US20160208677A1 (fr)
EP (1) EP3039262A4 (fr)
IN (1) IN2013MU02811A (fr)
WO (1) WO2015029058A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6744137B2 (ja) * 2016-06-07 2020-08-19 日本サーモスタット株式会社 サーモスタット装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130475A1 (de) 1981-07-23 1983-02-10 Hubert 5010 Bergheim Herpers Verfahren zur automatischen ruecklauftemperaturregelung an verteilern fuer heizungsanlagen
US4653688A (en) 1985-11-06 1987-03-31 Navistar International Corporation Thermostat with bypass valve
US5410991A (en) 1994-05-05 1995-05-02 Standard-Thomson Corporation Coolant fill housing with integral thermostat
EP0800130A1 (fr) 1996-04-04 1997-10-08 Vernet S.A. Dispositif thermostatique, notamment pour circuit de refroidissement d'un moteur thermique
DE10011558A1 (de) 2000-03-09 2001-09-27 Danfoss Iwk Regler Gmbh Regelventil
US6364213B1 (en) 2001-04-18 2002-04-02 Ford Global Technologies, Inc. Engine cooling system
WO2012072654A1 (fr) 2010-11-30 2012-06-07 Behr Thermot-Tronik Gmbh Valve thermostatique présentant une fonction d'arrêt du liquide de refroidissement
US20120312884A1 (en) 2010-02-18 2012-12-13 Nippon Thermostat Co., Ltd. Thermostat device

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US4103824A (en) * 1974-07-25 1978-08-01 Seifert Gerd W Thermostat for coolant presented as switch specifically for combustion engines
US4278876A (en) * 1979-08-31 1981-07-14 Savoca Paul F Thermostatically controlled heater
US5275231A (en) * 1992-07-28 1994-01-04 Yoshikazu Kuze Cooling system for an automotive engine
US20040107922A1 (en) * 2002-12-06 2004-06-10 Daimler Chrysler Corporation Engine cooling system thermostat bypass for dual temperature control
JP2006037889A (ja) * 2004-07-29 2006-02-09 Nissan Motor Co Ltd 内燃機関の冷却水経路の合流構造
JP5164281B2 (ja) * 2010-04-27 2013-03-21 日本サーモスタット株式会社 流体制御弁装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130475A1 (de) 1981-07-23 1983-02-10 Hubert 5010 Bergheim Herpers Verfahren zur automatischen ruecklauftemperaturregelung an verteilern fuer heizungsanlagen
US4653688A (en) 1985-11-06 1987-03-31 Navistar International Corporation Thermostat with bypass valve
US5410991A (en) 1994-05-05 1995-05-02 Standard-Thomson Corporation Coolant fill housing with integral thermostat
EP0800130A1 (fr) 1996-04-04 1997-10-08 Vernet S.A. Dispositif thermostatique, notamment pour circuit de refroidissement d'un moteur thermique
DE10011558A1 (de) 2000-03-09 2001-09-27 Danfoss Iwk Regler Gmbh Regelventil
US6364213B1 (en) 2001-04-18 2002-04-02 Ford Global Technologies, Inc. Engine cooling system
US20120312884A1 (en) 2010-02-18 2012-12-13 Nippon Thermostat Co., Ltd. Thermostat device
WO2012072654A1 (fr) 2010-11-30 2012-06-07 Behr Thermot-Tronik Gmbh Valve thermostatique présentant une fonction d'arrêt du liquide de refroidissement

Also Published As

Publication number Publication date
EP3039262A2 (fr) 2016-07-06
WO2015029058A3 (fr) 2015-06-04
IN2013MU02811A (fr) 2015-07-03
EP3039262A4 (fr) 2017-04-26
US20160208677A1 (en) 2016-07-21

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