EP2318678B1 - Wärmemanagementmodul des kühlsystems einer verbrennungskraftmaschine - Google Patents

Wärmemanagementmodul des kühlsystems einer verbrennungskraftmaschine Download PDF

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Publication number
EP2318678B1
EP2318678B1 EP20090780145 EP09780145A EP2318678B1 EP 2318678 B1 EP2318678 B1 EP 2318678B1 EP 20090780145 EP20090780145 EP 20090780145 EP 09780145 A EP09780145 A EP 09780145A EP 2318678 B1 EP2318678 B1 EP 2318678B1
Authority
EP
European Patent Office
Prior art keywords
management module
heat management
cooling system
valve
combustion 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.)
Not-in-force
Application number
EP20090780145
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2318678A1 (de
Inventor
Thomas Traudt
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP2318678A1 publication Critical patent/EP2318678A1/de
Application granted granted Critical
Publication of EP2318678B1 publication Critical patent/EP2318678B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86815—Multiple inlet with single outlet
    • Y10T137/86823—Rotary valve

Definitions

  • the present invention relates to a thermal management module of the cooling system of an internal combustion engine, having at least one arranged in a valve housing first supply port for cooling water of a bypass circuit and at least one adjacent second supply port for cooling water of a radiator circuit, which are connectable depending on the position of a valve housing housed in the valve member with a discharge port, wherein on the valve housing drive means are provided for actuating the valve member. Furthermore, the invention also relates to a cooling system comprising such a thermal management module.
  • the cooling system of an internal combustion engine usually comprises two coolant circuits.
  • the cooling water flows through a previously designated as a cooler heat exchanger before it is fed back into the internal combustion engine. Excess heat is dissipated in the heat exchanger and delivered to a secondary coolant.
  • Both cooling circuits of the internal combustion engine can be switched on simultaneously or shifted in time.
  • the targeted distribution of the cooling water flow to both circuits, the internal combustion engine is adjusted in the range of the optimal coolant temperature. As a result, compliance with the permissible limit temperatures for engine and transmission is ensured in the first place.
  • the thermal management module comprises a valve mechanism, with which a cooler circuit and / or a bypass circuit of a cooling system can be switched. This is done by means of an electric motor, which is controlled by an electronic control, the input side evaluates the signal of a cooling water temperature sensor to actuate the valve mechanism depending on the prevailing cooling water temperature, so that the mixing ratio of the cooling water between the two cooling circuits is adjusted based on a predetermined cooling water temperature.
  • the valve mechanism includes a valve spool that performs either a linear or rotational indexing movement.
  • the electric motor drive is designed either as a linear drive, for example in the form of a proportional magnet, or as an electric stepper motor for generating the rotary switching movement.
  • From the DE 198 49 492 A1 shows another heat management module that has a valve member for switching a bypass circuit and a radiator circuit of a cooling system.
  • the valve member is designed in this prior art as a rotary valve, which is driven by an electric motor. With the electric motor drive, the valve member can optionally in bring a blocking position for the radiator circuit and the bypass circuit or in an open position between the radiator circuit or the bypass circuit.
  • optimal coolant temperature is possible for each operating condition of the internal combustion engine, which leads to the aforementioned reduction in fuel consumption and pollutant emissions while sparing the internal combustion engine.
  • an electric motor drive in a thermal management module which has a cooling water flowed through valve mechanism, must allow reliable reliable permanent separation of cooling water flowed through and electrical / mechanical component area. Otherwise, for example, undesirable coolant flowing over a seal leakage in the area of the electromotive drive means could cause an electrical short circuit or progressive wear there, which leads to the failure of the drive for the thermal management module.
  • the requirements for electromechanical components in vehicle construction in view of the prevailing environmental conditions in the area of the cooling system can usually be realized only by expensive constructions, which are able to meet the specific higher temperatures, the required sealing properties, the desired power requirements and service life.
  • the invention includes the technical teaching that the drive means for actuating the valve member of a thermal management module are designed as a rotating drive motion generating hydrostatic servo motor which uses a branching from the cooling system feed pressure line for pressurizing.
  • the advantage of the solution according to the invention lies in the fact that compared to electromechanical drives, the high power density and robustness of hydraulic drives is harnessed and on the other hand a permanently pressure-tight torque transmission is ensured on the valve member, because the required drive torque is generated directly on the valve member.
  • the solution according to the invention works free of external leakage and makes use of the hydraulic pressure energy available per se in the cooling system for actuating the valve member.
  • the hydrostatic actuator according to the invention should be designed in the manner of an internal gear motor.
  • an internal gear motor forms a very compact hydrostatic actuator, which is able to provide the drive energy for the valve member, which is preferably designed as a rotary valve to advantageously directly one use rotary drive movement of the internal gear motor as a switching movement.
  • the valve member which is preferably designed as a rotary valve to advantageously directly one use rotary drive movement of the internal gear motor as a switching movement.
  • This variant also makes it possible to replace existing electromotive drive units with hydrostatic actuators of the type according to the invention, in order to increase the robustness of such a thermal management module.
  • a particularly compact hydrostatic servo motor which is designed as an internal gear motor, results in which an internally toothed ring gear of the internal gear motor forms the rotatively movable part of the hydrostatic servo motor and is integrally formed with the rotary valve of the valve member.
  • this functionally integrated component can be manufactured, for example, as an injection molded part made of plastic or light metal.
  • the rotationally movable internally toothed ring gear mesh with a sun gear arranged in a stationary and eccentric manner in order to implement the principle of a gear motor.
  • a curved-shaped filler piece arranged in contrast to be stationary and eccentric should be included in the rotatively movable internally toothed ring gear.
  • the filler seals by its outer arc shape the pressure area relative to the internal teeth of the ring gear.
  • About an inner arc shape of the filler sealing against the adjacent thereto sun gear is realized.
  • the pressurization of the preferably constructed in the above manner internal gear motor is carried out according to a further measure improving the invention in that the front side of the drive region, a first Pressure connection and a second pressure connection arranged adjacent thereto are arranged, which can be mutually coupled to the feed pressure line in order to move the valve member pressure controlled along the two mutually opposite switching directions can.
  • an electromagnetic pilot valve in the context of a hydraulic pilot control, which is preferably designed as a monostable 4/3-way valve. Due to the three switching positions, the two oppositely directed switching movements and an additional blocking position can be implemented. In order to bring the monostable 4/3-way valve in a defined emergency position in case of failure of the electrical control, it is proposed to perform this spring reset.
  • the electromagnetic pilot valve By using the electromagnetic pilot valve, the advantages of electrically controlled systems with respect to the integration into the functionality of electronic controllers are maintained in the inventive solution, so that an integratability of the thermal management module according to the invention is given in the control algorithm of the engine control unit of an internal combustion engine.
  • the feed pressure line according to the invention for actuating the hydrostatic servo motor described above preferably starts from the region of the outflow-side connection of a cooling water pump integrated in the cooling system. Because here is the cooling water pressure in the entire system still pressure drop-free and thus the largest, so that the design of the hydrostatic servo motor can be done based on the prevailing there maximum cooling water pressure. As a result, the hydrostatic actuator can be sized as small as possible, which benefits the compactness of the thermal management module.
  • the cooling system of an internal combustion engine 1 essentially consists of a radiator circuit 2 and a bypass circuit 3.
  • the radiator circuit 2 performs the heated by the internal combustion engine 1 cooling water by acting as a heat exchanger cooler 4, so that after cooling via a downstream coolant pump 5, the cooling water back in the Internal combustion engine 1 is available for its cooling.
  • this cooler circuit 2 is used for cooling the internal combustion engine 1
  • the bypass circuit 3 is used for heating the internal combustion engine 1, in particular during the warm-up phase, to heat the cooling water as quickly as possible near the optimum temperature, bypassing the radiator 4.
  • the required for temperature control of the internal combustion engine 1 selection between radiator circuit 2 and bypass circuit 3 or a mixed operation between the two circuits is performed by a thermal management module. 6
  • FIG. 2 comprises the thermal management module 6 a - here only in schematic section shown - valve housing 7, to which a first supply port 8 for the cooling water of - not shown here - bypass circuit 3 and at least one adjacent second supply port 9 for the cooling water - which also not shown here - Radiator circuit 2 is arranged.
  • the two supply ports 8 and 9 are selectively connected to a likewise arranged on the valve housing 7 discharge port 11.
  • a hydrostatic servo motor 12 is provided as the drive means, which, generating a rotating drive movement, directly actuates the rotary valve 10.
  • the hydrostatic servo motor 12 is designed in the manner of an internal gear motor and has an internally toothed ring gear 13, which is formed rotatably movable in one piece with the rotary valve 10.
  • the internally toothed ring gear 13 meshes with a counter-eccentrically arranged sun gear 14 to form a gear motor.
  • a contrast is fixed and eccentrically arranged arcuate filler 15 is also placed.
  • the filler 15 forms together with the opposite and not coming to rest sun gear 14, two opposing gear motor internal pressure chambers, which are associated with a first pressure port 16a and a second pressure port 16b arranged adjacent thereto.
  • Both pressure ports 16a and 16b are mutually coupled to a feed pressure line 17, which branches off the feed pressure directly from the cooling system of the internal combustion engine.
  • a monostable 4/3-way valve 18 is provided, which acts here as an electropneumatic pilot valve.
  • the 4/3-way valve 18 is electrically controlled by an electronic heat management control 19, which is part of the engine control here.
  • valve member instead of the embodiment of the valve member as a rotary valve and a turntable or the like can be used to form the valve mechanism of the thermal management module 6.
  • valve member instead of the embodiment of the valve member as a rotary valve and a turntable or the like can be used to form the valve mechanism of the thermal management module 6.
  • a valve member a translationally adjustable valve spool or the like. In this case, however, the rotating drive movement of the hydrostatic servo motor in a translational drive movement required for such a valve member to convert transmission technology.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Multiple-Way Valves (AREA)
  • Temperature-Responsive Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Valve Device For Special Equipments (AREA)
EP20090780145 2008-07-31 2009-07-03 Wärmemanagementmodul des kühlsystems einer verbrennungskraftmaschine Not-in-force EP2318678B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810035961 DE102008035961A1 (de) 2008-07-31 2008-07-31 Wärmemanagementmodul des Kühlsystems einer Verbrennungskraftmaschine
PCT/EP2009/058433 WO2010012563A1 (de) 2008-07-31 2009-07-03 Wärmemanagementmodul des kühlsystems einer verbrennungskraftmaschine

Publications (2)

Publication Number Publication Date
EP2318678A1 EP2318678A1 (de) 2011-05-11
EP2318678B1 true EP2318678B1 (de) 2012-05-23

Family

ID=40988497

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090780145 Not-in-force EP2318678B1 (de) 2008-07-31 2009-07-03 Wärmemanagementmodul des kühlsystems einer verbrennungskraftmaschine

Country Status (6)

Country Link
US (1) US8807096B2 (pt)
EP (1) EP2318678B1 (pt)
CN (1) CN102112715B (pt)
BR (1) BRPI0916717A8 (pt)
DE (1) DE102008035961A1 (pt)
WO (1) WO2010012563A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013221475A1 (de) 2012-11-16 2014-05-22 Schaeffler Technologies Gmbh & Co. Kg Modul für die Steuerung eines Kühlmittelventils, und aktive Gitterabdeckung
DE102014207202A1 (de) * 2014-04-15 2015-10-15 Schaeffler Technologies AG & Co. KG Wärmemanagementmodul
US10280818B2 (en) * 2014-05-12 2019-05-07 Volvo Truck Corporation Fluid control valve
CN106574543B (zh) 2014-08-05 2019-07-02 舍弗勒技术股份两合公司 具有用于旋转阀控制的同心轴的热管理阀模块
CN110700933B (zh) * 2018-07-10 2021-02-26 长城汽车股份有限公司 用于车辆热管理系统的阀体及车辆
JP7215379B2 (ja) * 2019-09-19 2023-01-31 トヨタ自動車株式会社 エンジン冷却装置

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4335867A (en) * 1977-10-06 1982-06-22 Bihlmaier John A Pneumatic-hydraulic actuator system
DE3226508C2 (de) * 1982-07-15 1985-12-12 Bayerische Motoren Werke AG, 8000 München Kühlkreis für Brennkraftmaschinen
DD224085A1 (de) * 1984-03-12 1985-06-26 Dresden Kuehlanlagenbau Kreiskolbenvierwegeventil
JPS60237116A (ja) 1984-05-10 1985-11-26 Aisin Seiki Co Ltd エンジンの冷却制御方法及び装置
DE3435833A1 (de) 1984-09-28 1986-04-10 Bayerische Motoren Werke AG, 8000 München Steuervorrichtung fuer den fluessigkeits-kuehlkreis von brennkraftmaschinen
US4598736A (en) * 1984-12-03 1986-07-08 Chorkey William J Solenoid operated valve with balancing means
US4744335A (en) * 1987-08-03 1988-05-17 Chrysler Motors Corporation Servo type cooling system control
US4902945A (en) * 1988-02-16 1990-02-20 Meades Jr Flavious J Electrical control for hydraulic valves
DE4004936A1 (de) 1989-02-17 1990-08-23 Aisin Seiki Brennkraftmaschine mit einem wassergekuehlten zwischenkuehler
DE4033261C2 (de) * 1990-10-19 1995-06-08 Freudenberg Carl Fa Temperaturgesteuerter Kühlkreis einer Verbrennungskraftmaschine
US5275231A (en) * 1992-07-28 1994-01-04 Yoshikazu Kuze Cooling system for an automotive engine
DE4324749A1 (de) 1993-07-23 1995-01-26 Freudenberg Carl Fa Regelventil
DE19717295C2 (de) * 1997-04-24 1999-09-23 Danfoss As Fluid-Maschine
DE19849492B4 (de) 1998-10-27 2005-12-22 Daimlerchrysler Ag Steuervorrichtung für einen Kühlkreislauf einer Brennkraftmaschine
DE10155386A1 (de) 2001-11-10 2003-05-22 Bosch Gmbh Robert Ventil mit Notfunktion
US6681805B2 (en) * 2001-11-28 2004-01-27 Ranco Incorporated Of Delaware Automotive coolant control valve
US6539899B1 (en) * 2002-02-11 2003-04-01 Visteon Global Technologies, Inc. Rotary valve for single-point coolant diversion in engine cooling system
US6920845B2 (en) * 2003-08-14 2005-07-26 Visteon Global Technologies, Inc. Engine cooling disc valve
DE102006053310A1 (de) * 2006-11-13 2008-05-15 Robert Bosch Gmbh Ventil zur Steuerung von Volumenströmen

Also Published As

Publication number Publication date
EP2318678A1 (de) 2011-05-11
US8807096B2 (en) 2014-08-19
WO2010012563A1 (de) 2010-02-04
CN102112715B (zh) 2013-05-29
CN102112715A (zh) 2011-06-29
DE102008035961A1 (de) 2010-02-04
BRPI0916717A8 (pt) 2016-05-24
BRPI0916717A2 (pt) 2015-11-10
US20110162595A1 (en) 2011-07-07

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