EP3688292A1 - Ensemble thermostat à commande de dérivation améliorée - Google Patents

Ensemble thermostat à commande de dérivation améliorée

Info

Publication number
EP3688292A1
EP3688292A1 EP18845454.0A EP18845454A EP3688292A1 EP 3688292 A1 EP3688292 A1 EP 3688292A1 EP 18845454 A EP18845454 A EP 18845454A EP 3688292 A1 EP3688292 A1 EP 3688292A1
Authority
EP
European Patent Office
Prior art keywords
valve
thermostat
coolant
thermostat assembly
engine
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP18845454.0A
Other languages
German (de)
English (en)
Inventor
Hikmet KANBUR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kirpart Otomotiv Parcalari Sanayi ve Ticaret AS
Original Assignee
Kirpart Otomotiv Parcalari Sanayi ve Ticaret AS
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 Kirpart Otomotiv Parcalari Sanayi ve Ticaret AS filed Critical Kirpart Otomotiv Parcalari Sanayi ve Ticaret AS
Publication of EP3688292A1 publication Critical patent/EP3688292A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
    • G05D23/1306—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids
    • G05D23/132—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element
    • G05D23/1333—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of incoming fluid

Definitions

  • the invention relates to a thermostat assembly used in engine cooling system, more particularly, an improvement in temperature control of the cooling system.
  • the coolant flow through bypass circuit is completely prevented by closing bypass inlet at the fully opened position of the three-way thermostat in the art.
  • the interruption in coolant flow causes warm coolant accumulation around the heat sensitive wax filled body located in bypass inlet or outlet of thermostat assembly.
  • the warm coolant accumulation around the heat sensitive wax filled body in the art of three-way thermostat assembly prevents the heat sensitive body to sense the real engine coolant temperature.
  • the present invention provides a thermostat assembly with an improved bypass control even at the fully opened thermostatic valve position.
  • the valve structure of the present invention provides a pilot flow from bypass inlet to outlet through the conduits designed to prevent the warm coolant accumulation at the fully opened thermostatic valve position.
  • the engine cooling system ensures the absorption of the excess heat of the engine by the coolant, and also the transmission of the excess heat by radiator channels to environment.
  • the maintaining of the cooling system has importance to supply the optimum working conditions for the engine and the engine components to survive without damage.
  • the three-way thermostats used in the engine cooling system are well known in the art.
  • the engine cooling system has two different coolant flow circuits according to the coolant temperature value sensed by the thermostat assembly of the system. The first one is bypass flow circuit as the primary flow circuit between engine channels and thermostat assembly, and the second one is the heat exchange flow circuit as the secondary flow circuit between engine channels, thermostat assembly and the radiator channels.
  • the cooling system employs a circulating pump to force to engine coolant to circulate through the system and an axial fan to force air against the radiator channels.
  • the mentioned engine coolant is the mixture of water and antifreeze in specific ratios.
  • thermo-actuator The temperature sensed by the heat sensitive wax filled body of thermo-actuator within the thermostat assembly defines which circuit will be used. Thereby the thermostat assembly between these circuits connects them to each other continuously to ensure the control of the engine coolant temperature to prevent engine damage caused from the overheating of engine.
  • Three-way thermostat assemblies generally comprise two inlets and one outlet.
  • the first inlet comes from engine via bypass circuit
  • the second inlet comes from the radiator via heat exchange circuit
  • the outlet goes to engine channels.
  • Another thermostat assembly embodiment has different connections such as two outlets and one inlet. The first outlet goes to bypass circuit, the second outlet goes to heat exchange circuit and the inlet comes from the engine channels.
  • the water jacket surrounding cylinders in the cylinder block is the enclosure directing the flow of the engine coolant around the engine parts.
  • the cooling of the engine parts is provided by the enclosure.
  • the wax in the heat sensitive wax filled body of the thermo-actuator within thermostat assembly starts to expand and to push the rubber diaphragm structure forward.
  • the rubber diaphragm is located on the heat sensitive wax filled body by crimping operation.
  • a piston is inserted into the recess on the diaphragm and guided through the recess. So, the forward motion of the diaphragm causes forward motion of the piston.
  • a spring settled under the thermostatic valve produces a spring force which continuously pushes the thermo-actuator assembly from the bypass inlet to the radiator inlet. The purpose of the spring is to provide the maintaining of the bypass flow by closing the radiator inlet with the valve structure.
  • the coolant at the first threshold temperature or over the first threshold temperature causes the thermostat to change position from the fully closed position to partially open position.
  • the engine coolant over first threshold temperature starts to circulate both through the bypass circuit and heat exchange circuit while the engine coolant under first threshold temperature circulates just through the bypass circuit.
  • the coolant passes from both bypass inlet and radiator inlet to outlet (engine channels).
  • the thermostat comes to the fully open position from the partially open position.
  • the coolant flow is absolutely restricted through the bypass inlet to engine outlet.
  • the engine coolant continues to circulates just through the heat exchange circuit including the radiator channels and wings.
  • the warm coolant passes through the radiator channels and wings at both partially and fully open thermostat position. So, the warm coolant is cooled via the wind sourced by the speed of the vehicle against on the radiator wings settled in front of vehicles and also an axial fan to force air against the radiator channels.
  • the cooled engine coolant causes the thermostat to change position from the fully open position to partially open position and then lastly to fully closed position when the engine coolant is cold enough (under the first threshold temperature).
  • the engine coolant starts to circulate just through the bypass circuit until the liquid reaches the first threshold temperature values of thermostat assembly again.
  • the engine cooling system in the art is a functioned system.
  • the coolant flowing through the bypass inlet to outlet during both fully closed and partially opened position of the thermostat is restricted at the fully opened position of the thermostat. This situation results in the accumulation of the warm coolant around the heat sensitive wax filled body of the thermo-actuator in the bypass inlet at the fully open thermostat position. Thereby the thermostat continues to be in the fully opened position.
  • the engine coolant also continues to circulate through the heat exchange circuit although the coolant is cold enough.
  • the accumulated warm coolant around the heat sensitive wax filled body of the thermo-actuator in the bypass inlet prevents the heat sensitive wax filled body to sense the real engine coolant temperature.
  • the improper functioning of the thermostat assembly lets the reducing of the vehicle performance. In extreme cases, it lets the engine and other engine parts to be damaged.
  • thermostats direct the coolant flow between through the engine channels and the radiator channels according to the temperature values of the engine coolant. So, the performance of thermostat assembly has a big importance for a well functioned engine cooling system. The performance of the thermostat assembly depends directly on the fast and accurate sense of the real engine coolant temperature by the heat sensitive wax filled body.
  • the hydraulic liquid (wax) is closed inside between the heat sensitive body and rubber diaphragm by crimping each other.
  • the wax causes the forward motion of the diaphragm and consequently motion of the piston to compensate the high hydraulic fluid volume at increasing temperatures.
  • the wax must accurately sense the real engine coolant temperature and directs the coolant flow accordingly.
  • the accumulated warmer coolant around the heat sensitive part of the thermo-actuator at the fully opened thermostat position prevents the heat sensitive wax filled body of thermo-actuator to sense the real engine coolant temperature. Thereby it prevents the heat sensitive wax filled body to direct the coolant flow according to the real information.
  • the heat sensitive wax filled body should be made from most heat-permeable material. Also, the removing of the local heat residues accumulated around the heat transmission area of the heat sensitive wax filled body and supplying wider heat transmission area are necessary.
  • the document US5727729 aims to prevent relatively cold coolant entering the thermostat assembly from bottom hose of the radiator (radiator inlet) to impinge upon the heat sensitive wax filled body.
  • a first valve member is to regulate a flow of cooled coolant from radiator inlet to outlet while second valve member is to regulate the flow of bypass coolant from bypass inlet to outlet.
  • the said first valve member extents outwardly from said valve actuating means and is arranged so as to deflect any fluid entering toward said thermostat assembly through said radiator inlet passage away from said heat sensitive wax filled body of said temperature responsive valve actuating means.
  • the present invention and said invention both are focused on the effective coolant temperature control to ensure that they sense the temperature of the recirculated bypass flow (real engine coolant) but said invention has two disadvantages: firstly it is more expensive to produce than conventional thermostat assemblies and secondly the thermostat assembly is indirectly affected by the relatively colder coolant in radiator inlet passage due to the first valve member even the radiator inlet is fully closed.
  • the invention relates to a thermostat assembly ensuring a pilot flow at the fully open thermostat position from the bypass inlet to outlet through the conduits.
  • the conduits are designed both on valve surface and the curved valve surface of the thermo-actuator. Accumulated warm coolant around the heat sensitive wax filled body causes the body to not sense the main flow temperature during the fully opened thermostat position. The conduits and the curved valve surface prevent the accumulation of the warm coolant around the heat sensitive wax filled body of the thermo-actuator. Description of the Figures
  • FIG 1 a a perspective view of a present valve structure of the thermo-actuator within the present thermostat assembly is given.
  • the X shows the designed part of the invention. It includes both conduits on the valve surface and conduits on the curved valve surface. Also, the X includes the curved valve surface which provides easy coolant flow by reducing friction.
  • FIGS 1 b and 1 c Different perspective views of a thermo-actuator assembly with said valve structure are given in figures 1 b and 1 c.
  • the invention provides enlarged heat transmission area by reducing the contact area between the heat sensitive wax filled body and the valve structure.
  • the enlarged heat transmission area is supplied by a ring-shape cavity grooved at the contact surface between the heat sensitive wax filled body and valve structure. Said ring-shaped cavity is shown in figure 1 c.
  • thermo-actuator assembly with the valve structure is given in figure 1 d.
  • Said conduit structure allowing pilot flow through bypass circuit at the fully opened thermostat position and said cavity structure providing enlarged heat transmission area are shown in the cross-sectional view of the thermo-actuator assembly with the valve structure.
  • thermo-actuator assembly from two different perspectives are given in figure 2a and 2b.
  • a cross sectional view and a perspective view of the thermostat assembly are given in figure 2c and in figure 2d respectively.
  • Figure 3a and 3b shows cross-sectional views of the fully closed thermostat assembly from different perspectives, allowing the coolant flow just from the bypass inlet to outlet. The coolant flowing through the primary circuit known as "bypass circuit" absorbs the excess engine heat to maintain optimum engine working conditions.
  • Figure 3c shows a top view of the fully closed thermostat assembly.
  • Figure 4a an 4b depicts cross-sectional views of the partially opened thermostat assembly from two different perspectives, allowing both coolant flow from radiator inlet to outlet and from bypass inlet to outlet.
  • the coolant flowing through the heat exchange circuit is known as secondary circuit as well as through the bypass circuit known as primary circuit.
  • Figure 4c shows a top view of the partially opened thermostat assembly.
  • Figure 5a and 5b shows cross-sectional views of the fully opened thermostat assembly from two different perspectives, allowing the coolant flow just from radiator inlet to outlet.
  • the coolant flowing through the secondary circuit known as "heat exchange circuit” cools the warm coolant coming from engine channels via an axial fan. The fan forces air against the radiator channels.
  • Figure 5c gives a close view of a conduit allowing a pilot flow from bypass inlet to outlet through the bypass circuit at the fully opened thermostat position.
  • Figure 5d shows a top view of the fully opened thermostat assembly.
  • the diagrams in the figure 6, 7 and 8 are for the three-way thermostat embodiment structured as two inlets, one outlet.
  • the diagram depicts the coolant flow circuit at the fully closed thermostat position allowing the coolant to flow just from bypass inlet to outlet through the bypass circuit.
  • the diagram depicts the coolant flow circuit at the partially open thermostat position allowing the coolant to flow both through the bypass circuit and the heat exchange circuit.
  • the diagram depicts the coolant flow circuit at the fully opened thermostat position allowing a pilot flow from the bypass inlet to outlet.
  • a pilot coolant flow is provided by the conduits from the bypass inlet to outlet as well as the main flow from the radiator inlet to outlet.
  • the pilot flow is provided through the designed conduits on the valve structure of the thermo-actuator.
  • Thermostat assemblies in the art allow a coolant flow just from the radiator inlet to outlet at the fully opened position of the thermostat.
  • Figure 9 shows an exploded perspective view showing parts of the thermostat assembly of the present invention including the designed valve structure of thermo-actuator.
  • the valve structure includes the conduits permitting a pilot flow between bypass inlet to outlet at the fully opened position of the thermostat.
  • This invention relates to a three-way thermostat assembly (32) with an enlarged heat transmission area (38.4) on a heat sensitive wax filled body (38.2) and at least one conduit (20) structure on the valve surface (1 1) of the thermo-actuator (38).
  • Warm coolant accumulation around the heat sensitive wax filled body (38.2) at the fully opened position of three-way thermostat assemblies (32) in the art causes the heat sensitive wax filled body (38.2) to not sense the real engine coolant temperature.
  • the warm coolant accumulation is prevented via said conduits (20) designed on the valve (10) structure of the present invention.
  • the size of said heat transmission area (38.4) defines the heat transmission rate between the coolant and the hydraulic liquid (wax).
  • the increasement in the heat transmission area (38.4) provides the increasement in the heat transmission rate while the decreasement in the heat transmission area (38.4) causes the decreasement in the heat transmission rate.
  • the increasement in the heat transmission rate provides quick reaction of the thermostat assembly (32) to the varying coolant temperature while the decreasement in the heat transmission rate causes late reaction of the thermostat assembly (32) to the varying coolant temperature.
  • the outer surface area of the heat sensitive wax filled body (38.2) is equal to the sum of the contact area (38.3) and the heat transmission area (38.4).
  • the heat transmission area (38.4) is increased by reducing the contact area (38.3) as keeping the total outer surface of the heat sensitive wax filled body (38.2) constant via the ring-shaped cavity (38.5) designed through the bottom contact area (38.3).
  • the cavity (38.5) has a height and a width. Consequently, this thermostat assembly (32) provides a better bypass control to increase efficiency of vehicle engines.
  • thermostat assembly (32) which connects the two circuits.
  • the heat exchange circuit is the circuit from the radiator inlet (32.2) to outlet (32.3) and includes the radiator (R) channels, engine channels and circulating pump (CP).
  • the bypass circuit is the circuit from the bypass inlet (32.1) to outlet (32.3) and includes just engine channels and circulating pump (CP).
  • the coolant flow exists from the bypass inlet (32.1) to outlet (32.3) at both fully closed and partially opened thermostat position.
  • the flow from the bypass inlet (32.1) to outlet (32.3) is prevented at fully opened thermostat position. Therefore, the warm coolant is accumulated at the bypass inlet (32.1).
  • the warm coolant accumulated around the heat sensitive wax filled body (38.2) of the thermo- actuator (38) at the fully opened thermostat position prevents the heat sensitive wax filled body (38.2) to sense the real engine coolant temperature in the art of three-way thermostat assembly (32). Thereby the thermostatic valve (10) continues to be in the fully opened position although the engine coolant is cold enough to turn the fully closed thermostatic valve (10) position.
  • the present invention provides a thermostat assembly (32) with an improved bypass control even at the fully opened thermostatic valve (10) position.
  • the valve (10) structure of the present invention provides a pilot flow (P) from bypass inlet (32.1) to outlet (32.3) through the conduits (20) designed on the valve (10).
  • the conduits (20) providing pilot flow (P) of the warm coolant prevents the warm coolant accumulation around the heat sensitive wax filled body (38.2) at the fully open thermostat position.
  • the heat transmission area (38.4) on the heat sensitive wax filled body (38.2) is increased by reducing the contact area (38.3) between the heat sensitive wax filled body (38.2) and the valve (10).
  • the heat transmission rate from the coolant to the wax is increased through the enlarged heat transmission area (38.4) on the heat sensitive wax filled body (38.2).
  • the increasement in the heat sense rate of the heat sensitive wax filled body (38.2) is resulted in the increasement of thermostat assembly (32) response rate. Consequently, the designed valve (10) structure provides a better bypass control for the engine cooling system.
  • valve (10) structure with the conduits (20) on the valve surface (11) and curved valve surface (12) constructed between valve arms (13) is shown in figure 1a.
  • the different perspective views of a thermo-actuator (38) assembly including the valve (10) structure are given in figure 1 b and 1c.
  • a front cross-sectional view of the thermo-actuator (38) assembly with the valve (10) structure is given in figure 1 d.
  • two different cross-sectional views of thermo-actuator (38) assembly from different front perspectives are given.
  • the cross-sectional view of the thermostat assembly (32) including the mentioned valve (10) structure and the perspective view of the thermostat assembly (32) of the invention are given respectively in figure 2c and figure 2d.
  • the perspective view of the thermostat assembly (32) includes the bypass inlet (32.1), radiator inlet (32.2) and the outlet (32.3).
  • the closed hydraulic reservoir is constructed by crimping the extension of the heat sensitive wax filled body (38.2) on the extension of the diaphragm.
  • the wax expanding against to diaphragm structure lets the recess of the diaphragm in contact with the hydraulic liquid to move forward. Consequently, the piston (38.1) seated inside the recess from the outer surface of the diaphragm moves forward too.
  • the forward motion of the piston (38.1) results in the raise of the length of the thermo-actuator (38). Thereby this elongation causes the backward motion of the thermo-actuator (38) assembly due to the restriction of the forward motion of the piston
  • thermo-actuator (38) assembly consists of the closed heat sensitive wax filled body
  • valve (10) structure mounted on the body and a piston (38.1).
  • the spring (37) seated on the body seat (34.2) applies always a forward force against the valve (10) structure by moving through the around of the body nest (34.1).
  • the forward force causes the valve (10) structure to close the radiator inlet (32.2) by setting on the cover seat (35.1). Thereby this provides the maintaining of the coolant flow just from the bypass inlet (32.1) to outlet (32.3) through the bypass circuits at the cold condition of the engine coolant.
  • the fully closed thermostat position allowing coolant flow just through the bypass circuit under the first threshold engine coolant temperature values is shown in the figure 3a.
  • the diagram of the coolant flow circuit at the fully closed thermostat position is shown in figure 6.
  • the cold coolant forced by the circulation pump (CP) to flow from the bypass inlet (32.1) to outlet (32.3) passes through the bypass circuit including the engine channels in the engine block (E).
  • the coolant absorbing the excess heat of the engine comes again the circulation pump (CP) to be forced to circulate through the circuit again until the coolant temperature reaches the first threshold temperature values.
  • the diagram of the coolant flow circuit at the partially open thermostat position is shown in figure 7.
  • the warm coolant is forced by the circulation pump (CP) to flow both from the bypass inlet (32.1) to outlet (32.3) and from the radiator inlet (32.2) to outlet (32.3).
  • the coolant flowing from the bypass inlet (32.1) to outlet (32.3) passes through the engine channels in the engine block (E).
  • the coolant flowing from radiator inlet (32.2) to outlet (32.3) passes through both the radiator (R) channels and the engine channels in the engine block (E).
  • the coolant coming again the circulation pump (CP) is forced to circulate through the circuits again until the coolant temperature reaches the second threshold temperature.
  • the thermostat assembly (32) changes position from partially open to fully open.
  • the engine coolant temperature exceeding the second threshold temperature value causes the wax pressure inside the hydraulic system to increase.
  • the high wax pressure forces piston (38.1) to move forward until length of the thermo-actuator (38) reaches its longest state.
  • the full backward motion of the valve (10) structure thanks to the restricted forward motion of the piston (38.1) end by the piston seat (35.2) forces the spring (37) to push completely back.
  • the thermostat assembly (32) changes position from the partially open to completely open.
  • the valve (10) structure sits on the body seat (34.2) by insulating the inner wall of the body nest (34.1). So, the coolant flow through the bypass circuit is prevented completely at the fully opened thermostat position in the art.
  • the coolant flow circuit allowing pilot flow (P) through the bypass circuit via the conduits (10) on the valve (10) structure of the present thermostat assembly (32) at fully opened thermostat position is shown in figure 5a.
  • the present invention allows both pilot flow (P) through the bypass circuit and the main flow (M) through the heat exchange circuit at the fully opened thermostat position.
  • the designed conduits (20) both on the valve surface (11) and the curved valve surface (12) prevent the accumulation of warm coolant around the heat sensitive wax filled body (38.2) by allowing pilot flow (P) through the bypass circuit.
  • the conduits (20) provides pilot flow (P) from the bypass inlet (32.1) to outlet (32.3).
  • the present invention aims to provide an improved bypass control with the enlarged heat transmission area (38.4) as well as the designed conduits (20) on the valve (10) structure of the present invention.
  • the enlarged heat transmission area (38.4) is provided by reducing the contact area (38.3) between the heat sensitive wax filled body (38.2) and valve (10).
  • the coolant flow circuit with the pilot flow (P) provided through the conduits (20) designed on the valve (10) structure is shown by the diagram in the figure 8.
  • pilot flow (P) from the bypass inlet (32.1) to outlet (32.3) through the bypass circuit as well as the main flow (M) from the radiator inlet (32.2) to the outlet (32.3) through the heat exchange circuit.
  • the exploded perspective view of the thermostat assembly (32) of the present invention including the valve (10) structure of thermo-actuator (38) is given in figure 9.
  • the valve (10) structure has conduits (20) permitting pilot flow (P) during the fully opened thermostat position to prevent the warm coolant accumulation.
  • the accumulated warm coolant causes the heat sensitive wax filled body (38.2) to not sense the main flow (M) temperature at the fully opened thermostat position of the art.
  • This present thermostat assembly (32) shown in figure 12 consists of a body (34), a spring (37), a valve (10) structure, a sealing element (30), a thermo-actuator (38) and lastly a cover (35) to hold mentioned other parts inside.
  • the spring (37) is settled on the body seat (34.2) to apply force the valve (10) structure from the bottom of the valve (10). Thus, the spring (37) pushes the valve (10) structure forward always.
  • the sealing element (30) prevents leakage from outside to inside or from inside to outside of the radiator inlet (32.2) of the thermostat assembly (32) at the fully closed thermostat position.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

La présente invention concerne un ensemble thermostat (32) assurant un écoulement pilote (P) à la position de thermostat entièrement ouverte depuis l'entrée de dérivation (32.1) vers la sortie (32,3) à travers les conduits (20) formés sur la structure de vanne (10) pour empêcher l'accumulation du liquide de refroidissement chaud autour du corps rempli de cire thermosensible (38.2) du thermo-actionneur (38). L'accumulation de liquide de refroidissement chaud amène le corps rempli de cire thermosensible (38,2) à ne pas détecter la température d'écoulement principal (M) pendant la position de thermostat entièrement ouverte. Une commande de dérivation améliorée est recherchée avec la zone de transmission de chaleur agrandie par réduction de la zone de contact (38,3) ainsi que les conduits formés (20) sur la structure de vanne (10) de la présente invention.
EP18845454.0A 2017-09-26 2018-09-18 Ensemble thermostat à commande de dérivation améliorée Withdrawn EP3688292A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/14299A TR201714299A1 (tr) 2017-09-26 2017-09-26 Geli̇şti̇ri̇lmi̇ş bypass kontrolüne sahi̇p termostat terti̇bati
PCT/TR2018/050504 WO2019066758A1 (fr) 2017-09-26 2018-09-18 Ensemble thermostat à commande de dérivation améliorée

Publications (1)

Publication Number Publication Date
EP3688292A1 true EP3688292A1 (fr) 2020-08-05

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EP18845454.0A Withdrawn EP3688292A1 (fr) 2017-09-26 2018-09-18 Ensemble thermostat à commande de dérivation améliorée

Country Status (5)

Country Link
EP (1) EP3688292A1 (fr)
CN (1) CN111183278B (fr)
IL (1) IL273565A (fr)
TR (1) TR201714299A1 (fr)
WO (1) WO2019066758A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR201914833A2 (tr) * 2019-09-30 2021-04-21 Kirpart Otomotiv Parcalari Sanayi Ve Ticaret A S Karişma oranini otonom bi̇r şeki̇lde ayarlayarak sabi̇t çikiş sicakliği sağlayan bi̇r termostat terti̇bati

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2040152U (zh) * 1988-10-10 1989-06-28 湖南省娄底地区标达科技发展公司 具有形状记忆合金的汽车节温器
DE4427340A1 (de) * 1993-08-07 1995-02-09 Bayerische Motoren Werke Ag Thermostatventil
GB9411617D0 (en) 1994-06-09 1994-08-03 Rover Group A thermostat assembly
TW394817B (en) * 1998-04-03 2000-06-21 Yoshikazu Kuse Cooling system for an automotive engine
DE102004002995B4 (de) * 2004-01-16 2006-07-06 Itw Automotive Products Gmbh & Co. Kg Thermostatventilanordnung
US20080223316A1 (en) * 2007-03-16 2008-09-18 International Engine Intellectual Property Company, Llc Engine thermostat having bypass pressure-dampening fluid passage
DE102008015030A1 (de) * 2008-03-17 2009-09-24 Behr Thermot-Tronik Gmbh Thermostatventil mit integriertem Kurzschlussventil
FR2958002B1 (fr) * 2010-03-23 2015-01-02 Vernet Vanne thermostatique pour un circuit de circulation de fluide et procede de fabrication d'une telle vanne
CN202883080U (zh) * 2010-11-08 2013-04-17 科派特汽车配件工贸联合股份公司 用于内燃机的冷却循环的自动调温阀组件
DE102010062206A1 (de) * 2010-11-30 2012-05-31 Behr Thermot-Tronik Gmbh Thermostatventil mit Kühlmittelstillstand-Funktion
JP5936868B2 (ja) * 2012-01-31 2016-06-22 日本サーモスタット株式会社 サーモスタット装置
CN103867617B (zh) * 2014-03-06 2016-08-24 东风富士汤姆森调温器有限公司 用于配置液力缓速器的商用车调温器
FR3026458B1 (fr) * 2014-09-25 2016-10-21 Vernet Dispositif thermostatique de regulation de la circulation d'un fluide, ainsi que vanne thermostatique comprenant un tel dispositif

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IL273565A (en) 2020-05-31
CN111183278A (zh) 2020-05-19
WO2019066758A1 (fr) 2019-04-04
TR201714299A1 (tr) 2019-04-22
CN111183278B (zh) 2022-08-09

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