EP0098979A1 - Temperature controlling device in a cooling circuit of an internal-combustion engine, especially for an automotive engine - Google Patents

Temperature controlling device in a cooling circuit of an internal-combustion engine, especially for an automotive engine Download PDF

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Publication number
EP0098979A1
EP0098979A1 EP83105752A EP83105752A EP0098979A1 EP 0098979 A1 EP0098979 A1 EP 0098979A1 EP 83105752 A EP83105752 A EP 83105752A EP 83105752 A EP83105752 A EP 83105752A EP 0098979 A1 EP0098979 A1 EP 0098979A1
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EP
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Prior art keywords
thermostatic
valve
working
actuator
abutment
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EP83105752A
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German (de)
French (fr)
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EP0098979B1 (en
Inventor
Roland Saur
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Behr Thomson Dehnstoffregler GmbH and Co
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Behr Thomson Dehnstoffregler GmbH and Co
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    • 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
    • F01P7/167—Controlling of coolant flow the coolant being liquid by thermostatic control by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed

Definitions

  • the invention relates to a device for regulating the temperature in a cooling circuit of an internal combustion engine, in particular a motor vehicle engine, which contains a thermostatic valve which regulates the coolant flow from the internal combustion engine through a direct return and / or a heat exchanger back to the internal combustion engine and which contains a thermostatic working element.
  • a thermostatic valve which regulates the coolant flow from the internal combustion engine through a direct return and / or a heat exchanger back to the internal combustion engine and which contains a thermostatic working element.
  • whose housing carries a valve plate of a valve leading to the heat exchanger and whose working piston which extends when heated is opposite an abutment.
  • thermostatic valve At high outside temperatures, however, the thermostatic valve should open at a significantly lower temperature so that the operating temperature of the engine is not exceeded. In practice, therefore, there has long been a desire to design a thermostatic valve so that it opens at a higher temperature at low outside temperatures than at higher outside temperatures. This need was previously met by installing so-called winter thermostatic valves for low outside temperatures and so-called summer thermostatic valves for higher outside temperatures. However, this leads to an additional maintenance process and, above all, to the risk of engine damage if the thermostatic valve is not selected correctly.
  • the invention has for its object to design a device of the type mentioned with simple and reliable means so that a change in the valve characteristic is made possible.
  • This object is achieved in that the position of the abutment can be changed in such a way that it forms support points for the working piston, the distance of which from the housing can be adjusted with the valve disk.
  • the working range of the thermostatic valve can be changed in a simple manner.
  • a fundamental change of the valve construction which has been tried and tested many times in practice, is not necessary, so that proven parts and designs can be used.
  • the work area can not only be switched to two extreme positions, but can also be set to intermediate positions, so that effective control is possible which, in addition to or instead of the existing outside temperature, can also use other values as reference variables for the control, for example the exhaust gas temperature and the speed and / or the torque of the engine, the vacuum in the intake manifold, the pressure difference in a vacuum can, the oil temperature or the like. Based on these values, it is possible to change the engine temperature within certain limits in order to optimize the operation of the internal combustion engine.
  • an inlet 17 for the coolant of an internal combustion engine is provided, which can be connected via a thermostatic valve to a direct return 18 and / or to a connection piece 15 leading to a heat exchanger (not shown).
  • a line leads from the heat exchanger back to the internal combustion engine in a manner also not shown.
  • the thermostatic valve has a thermostatic working element that an Ar has piston 2 and a housing 3.
  • An expansion material is accommodated in the housing 3, which expands when heated and thereby drives the working piston 2 out of the housing 3. When cooling, the expansion material reduces its volume so that the working piston 2 can be pressed back into the housing 3.
  • a valve plate 4 is fixedly connected, for example by pressing or flanging or the like, which is associated with a conical edge of a rectangular valve seat 16, which is formed by the connecting piece 15.
  • the valve formed from the valve plate 4 and the valve seat 16 closes or opens the connection between the inlet 17 and the connection stub 15 leading to the heat exchanger.
  • the valve plate 4 is held in the closed position shown with a conical compression spring 19.
  • a further valve plate 20 is arranged on the housing 3 by means of a slide guide, which is assigned to the direct return 18, which has a valve seat 21 assigned to the valve plate 20.
  • the valve plate 20 is loaded with a compression spring 22 which is supported on the housing 3 in the region of the valve plate 4.
  • the inlet 17 is located between the two valve plates 4 and 20.
  • the working piston 2 of the thermostatic working element is supported on an abutment 1.
  • the thermostatic valve When the internal combustion engine is started and the coolant is circulated, the thermostatic valve is in the position shown in FIG. 1, ie the connection from the inlet to the connecting piece 15 is closed and the connection to the direct return 18 is open.
  • the coolant flows around the housing 3 of the thermo static work element.
  • the working piston 2 When a temperature determined by the design of the expansion material of the thermostatic working element is reached, the working piston 2 is extended over a specific working range according to a specific characteristic which is dependent on the expansion material.
  • the working piston 2, which is supported on the abutment 1 then moves the housing 3 with the valve disks 4 and 20, so that initially both valves 4, 16 and 20, 21 are open over a certain temperature range, while the valve then increases as the temperature increases further 20, 21 is closed and only the valve 4, 16 is open.
  • the abutment 1 is independent of and provided relative to the thermostatic working element adjustable supporting body 5 which is displaceable transversely to the axis of the working piston 2 and which has a supporting surface 13 inclined to the axis of the working piston 2.
  • the direction of displacement of the support body 5 and the inclination of the support surface 13 are selected relative to the axis of the working piston 2 so that the adjustment movement of the support body is converted into a change in the area X with a reduction, if necessary a translation can also be set.
  • the support point 13 of the support surface 13, which is the most distant from the housing 3 and the valve 4 is in use, so that opening of the valve 4, 16 (and closing of the valve 20, 21) takes place only at an elevated level Temperature of the coolant takes place, which is desirable, for example, at low outside temperatures.
  • the working piston 2 must first travel an empty path of size X before it actually engages Supporting surface 13 supports and can move this and the valve plate 4 and 20 by a further extension of the housing 3.
  • the free travel of the working piston 2 can be reduced, so that the working range of the thermostatic working element and thus the thermostatic valve is thus shifted to a lower temperature level, as is the case, for example, with high temperatures Outside temperatures is desired.
  • the working piston 2 With the same heating of the thermostatic working element, the working piston 2 then reaches the stop surface 13 earlier, so that the opening movement of the valve 4, 16 (and the closing movement of the valve 20, 21) begins earlier.
  • support points lying between the two end points of the inclined support surface 13 can also be selected, so that the working range of the thermostatic valve can be varied continuously within the selected limits.
  • the supporting body 5 of the abutment 1 is displaced by an actuator 9, which is designed as a thermostatic working element.
  • a working piston 23 is extended from the thermostatic working element 9, which is correspondingly moved back on cooling, for which purpose a return spring 25 is provided, which loads the support body 5, which is a piston which is aligned coaxially with the working piston 23 and which is in a guide in a guide Housing 26 slides, which is integrally formed with the connecting piece 15.
  • the thermostatic working element 9 is screwed into this housing 26 with a threaded shoulder 27.
  • the thermostatic working element 9 is provided in a known manner with an electrical heating element, for example a PTC resistor, so that the linear movement of the working piston and thus the setting of the working range of the thermostatic valve can be controlled electrically.
  • the stream supply to the thermostatic working element is effected by a signal converter 28, which can be activated due sizes laminatester F mulungs-.
  • the outside temperature or the outside temperature instead further reference variables for a change of the operating range of the thermostat valve, for example, the exhaust gas temperature, the speed or the torque of the internal combustion engine, the negative pressure in the intake manifold, the pressure difference in a U ntertikdose or the oil temperature or the like
  • the return spring 25 In order to be able to change the working range of the thermostatic valve, even if the working piston 2 of the thermostatic working element of the thermostatic valve is already fully or partially extended, the return spring 25 must be designed so that it overcomes the force of the spring 19 and the valve 4, 16 through Moving the housing 3 with the valve plate 4 can open.
  • the connecting piece 15 with the thermostatic valve and the adjustable abutment 1 is formed as a structural unit which can be assembled as a whole and, if necessary, exchanged.
  • the exemplary embodiment according to FIG. 1 can also be modified in such a way that the device works without the supply of auxiliary energy, i.e. the thermostatic working element 9 adjusts the support body 5 depending on the ambient temperature.
  • the thermostatic working element 9 can be designed by the choice of the expansion material contained in it so that at low ambient temperatures up to, for example, 15 ° C., the valve 4, 16 opens at a higher temperature of the coolant than at ambient temperatures of more than 15 ° C.
  • the thermostatic working element 9 and the return spring 25 would have to be interchanged, so that when the working piston 23 of the working element is retracted, the ambient temperature of the supporting point 13 of the supporting surface 13 that is being used is further from the housing 3 and the valve 4 and also the valve seat 16 is removed than when the working piston 23 of the working element 9 is extended (higher ambient temperature).
  • FIG. 2 to 5 show further exemplary embodiments of actuators with which the working range of a thermostatic valve can be shifted in accordance with FIG. 1 by providing an externally adjustable abutment for the working piston 3 of the thermostatic working element.
  • linear actuators or rotating actuators can be provided.
  • the exemplary embodiments shown represent only a section of the most varied possibilities, which can work with or without the supply of auxiliary energy. Actuators with hydraulic or pneumatic actuators can also be easily provided.
  • a reversible rotary motor 10 is provided as an actuator, which engages with a drive pinion 29 in a rack 30 of a support body 6, which can be moved back and forth transversely to the axis of a working piston 2 of a thermostatic working element is to adjust the work area by the amount X of a thermostatic valve.
  • a support surface 14 extending obliquely to the axis of the working piston 2 is connected to the toothed rack 30.
  • the rotary motor 10 is designed so that it can also work against the force of the spring 19 of the thermostatic valve.
  • an actuator 11 with a linear drive movement is again provided, for example a thermostatic element or a solenoid or a motor with a rotating spindle, which loads a support body 7 designed as a double-armed lever, which around a transverse to the axis of a working piston 2 one thermostatic working element of a thermostatic valve extending axis is pivotable.
  • the double-armed lever 7 is loaded with a compression spring 31, which causes the return movement and which is stronger than the valve springs, not shown.
  • the support body 8 is directly adjustable in the axial direction of the working piston 2 of a thermostatic working element of a thermostatic valve.
  • the support body 8 is, for example, the working piston of a thermostatic working element 12, which is electrically heated, i.e. works with an auxiliary energy or that works without auxiliary energy and responds to the ambient temperature in such a way that its working piston remains retracted at a low ambient temperature and only extends from a certain ambient temperature.
  • the support body 8 can also be the spindle of a rotating spindle motor. It can also be the piston of a solenoid.
  • a toothed rail according to the exemplary embodiment according to FIGS. 2 and 3, it is also possible to provide a disk which can be rotated about an axis parallel to the pinion 29 and is provided with external teeth, which is provided on its side facing the working piston 2 with a cam surface serving as a supporting surface the different working areas for the working piston are adjustable.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Temperature-Responsive Valves (AREA)
  • Electronic Switches (AREA)
  • Common Mechanisms (AREA)

Abstract

Die Erfindung betrifft eine Vorrichtung zum Regeln der Temperatur des Kühlkreislaufes, insbesondere eines Verbrennungsmotors eines Kraftfahrzeuges, die ein Thermostatventil mit einem thermostatischen Arbeitselement enthält. Um die Temperatur in dem Kühlmittelkreislauf und damit die Temperatur des Verbrennungsmotors abhängig von irgendwelchen Betriebsbedingungen oder äußeren Einflüssen auf verschiedene Werte einstellen zu können, ist dem Arbeitskolben des thermostatischen Arbeitselementes ein mittels eines Stellantriebes verstellbares Widerlager zugeordnet, so daß dadurch die Öffnungstemperatur und die Regelungscharakteristik des Thermostatventils verstellt werden können.The invention relates to a device for regulating the temperature of the cooling circuit, in particular an internal combustion engine of a motor vehicle, which contains a thermostatic valve with a thermostatic working element. In order to be able to set the temperature in the coolant circuit and thus the temperature of the internal combustion engine to different values depending on any operating conditions or external influences, the working piston of the thermostatic working element is assigned an abutment which can be adjusted by means of an actuator, so that the opening temperature and the control characteristic of the thermostatic valve are thereby assigned can be adjusted.

Description

Die Erfindung betrifft eine Vorrichtung zum Regeln der Temperatur in einem Kühlkreislauf eines Verbrennungsmotors, insbesondere eines Kraftfahrzeugmotors, die ein Thermostatventil enthält, das den Kühlmittelfluß von dem Verbrennungsmotor durch einen direkten Rücklauf und/oder einen Wärmetauscher zurück zum Verbrennungsmotor regelt und das ein thermostatisches Arbeitselement enthält, dessen Gehäuse einen Ventilteller eines zu dem Wärmetauscher führenden Ventils trägt und dessen bei Erwärmung ausfahrender Arbeitskolben einem Widerlager gegenüberliegt.The invention relates to a device for regulating the temperature in a cooling circuit of an internal combustion engine, in particular a motor vehicle engine, which contains a thermostatic valve which regulates the coolant flow from the internal combustion engine through a direct return and / or a heat exchanger back to the internal combustion engine and which contains a thermostatic working element. whose housing carries a valve plate of a valve leading to the heat exchanger and whose working piston which extends when heated is opposite an abutment.

Es ist seit langem bekannt, die Temperatur des Kühlmittels und damit die Temperatur des Verbrennungsmotors, insbesondere beim Starten des Verbrennungsmotors zu regeln, indem das Thermostatventil so eingestellt wird, daß es ab einer bestimmten, unterhalb der Betriebstemperatur liegenden Temperatur die Verbindung zu dem Wärmetauscher frei gibt. Dadurch soll erreicht werden, daß der Verbrennungsmotor in möglichst kurzer Zeit auf seine Betriebstemperatur erwärmt wird. Dabei hat die Außentemperatur einen wesentlichen Einfluß auf die Aufwärmzeit, da die Betriebstemperatur bei hoher Außentemperatur schneller als bei niedriger Außentemperatur erreicht wird. Ein Thermostatventil, das bei einer zu tief unterhalb der Betriebstemperatur liegenden Temperatur öffnet, verzögert insbesondere bei niedrigen Außentemperaturen das Erreichen der Betriebstemperatur. 'Bei niedrigen Außentemperaturen ist es deshalb erwünscht, daß das Thermostatventil erst bei einer höheren Temperatur öffnet. Bei hohen Außentemperaturen soll das Thermostatventil dagegen schon bei einer deutlich niedrigeren Temperatur öffnen, damit die Betriebstemperatur des Motors nicht überschritten wird. Es besteht deshalb in der Praxis seit langem der Wunsch, ein Thermostatventil so auszulegen, daß es bei niedrigen Außentemperaturen bei einer höheren Temperatur als bei höheren Außentemperaturen öffnet. Dieses Bedürfnis wurde früher dadurch erfüllt, daß für niedrige Außentemperaturen sogenannte Winter-Thermostatventile und für höhere Außentemperaturen sogenannte Sommer-Thermostatventile eingebaut wurden. Dies führt jedoch zu einem zusätzlichen Wartungsvorgang und vor allem bei einer nicht korrekten Wahl des Thermostatventils zu der Gefahr von Motorschäden.It has long been known to regulate the temperature of the coolant and thus the temperature of the internal combustion engine, in particular when the internal combustion engine is started, by setting the thermostatic valve so that it releases the connection to the heat exchanger from a certain temperature below the operating temperature . This is to ensure that the internal combustion engine is heated to its operating temperature in the shortest possible time. Here has the outside temperature ufwärmzeit a significant effect on the A, since the operating temperature is reached at high external temperature faster than at low outdoor temperature. A thermostatic valve that opens at a temperature that is too low below the operating temperature delays reaching the operating temperature, especially when the outside temperature is low. 'At low outside temperatures, it is therefore desirable that the thermostatic valve only opens at a higher temperature. At high outside temperatures, however, the thermostatic valve should open at a significantly lower temperature so that the operating temperature of the engine is not exceeded. In practice, therefore, there has long been a desire to design a thermostatic valve so that it opens at a higher temperature at low outside temperatures than at higher outside temperatures. This need was previously met by installing so-called winter thermostatic valves for low outside temperatures and so-called summer thermostatic valves for higher outside temperatures. However, this leads to an additional maintenance process and, above all, to the risk of engine damage if the thermostatic valve is not selected correctly.

Um das geschilderte Problem zu lösen, sind auch schon seit langem Überlegungen bekannt, eine einheitliche Vorrichtung zu schaffen, die auf die jeweils vorhandene Außentemperatur umstellbar ist. Keine der bisher bekannt gewordenen Vorrichtungen hat jedoch Eingang in die Praxis gefunden, da alle einen zu hohen Aufwand erfordern und außerdem keine ausreichende Funktionssicherheit bieten. Beispielsweise ist es durch die DE-OS 14 51 669 bekannt, zwei thermostatische Arbeitselemente vorzusehen, die wechselweise einzeln oder auch nacheinander zum Einsatz kommen sollen. Dabei wird vorgesehen, daß die relative Lage der beiden thermostatischen Arbeitselemente jeweils für sich oder gemeinsam zu dem Ventilteller verändert wird, was eine Relativbewegung zwischen den thermostatischen Arbeitselementen und dem Ventilteller notwendig macht. Abgesehen von dem hohen Aufwand führt diese Vorrichtung zu dem Problem, daß eine Gleitführung zwischen dem Ventilteller und den thermostatischen Arbeitselementen vorgesehen werden muß, die sehr störanfällig ist und die außerdem auch noch dicht sein soll.In order to solve the problem described, considerations have long been known to create a uniform device which can be converted to the prevailing outside temperature. However, none of the previously known devices has found its way into practice, since all of them require too much effort and, moreover, do not offer adequate functional reliability. For example, it is known from DE-OS 14 51 669 to provide two thermostatic working elements which are to be used alternately individually or in succession. It is provided that the relative position of the two thermostatic working elements is changed individually or jointly with the valve plate, which is a relative movement between the thermostatic working elements and the valve plate. In addition to the high cost, this device leads to the problem that a sliding guide between the valve plate and the thermostatic working elements must be provided, which is very prone to failure and which should also be tight.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art mit einfachen und funktionssicheren Mitteln so auszubilden, daß eine Veränderung der Ventilcharakteristik ermöglicht wird. Diese Aufgabe wird dadurch gelöst, daß die Position des Widerlagers derart veränderbar ist, daß es Abstützpunkte für den Arbeitskolben bildet, deren Abstand zu dem Gehäuse mit dem Ventilteller einstellbar ist.The invention has for its object to design a device of the type mentioned with simple and reliable means so that a change in the valve characteristic is made possible. This object is achieved in that the position of the abutment can be changed in such a way that it forms support points for the working piston, the distance of which from the housing can be adjusted with the valve disk.

Durch ein Verändern der relativen Position des Widerlagers zu dem thermostatischen Arbeitselement läßt sich in einfacher Weise der Arbeitsbereich des Thermostatventils verändern. Eine grundsätzliche Veränderung der in der Praxis vielfach bewährten Ventilkonstruktion ist nicht erforderlich, so daß auf bewährte Teile und Konstruktionen zurückgegriffen werden kann. Dabei kann der Arbeitsbereich nicht nur in zwei Extremstellungen geschaltet, sondern auch auf Zwischenstellungen eingestellt werden, so daß eine wirksame Regelung möglich ist, die außer oder anstatt der vorliegenden Außentemperatur auch andere Werte als Führungsgrößen für die Regelung benutzen kann, beispielsweise die Abgastemperatur, die Drehzahl und/oder das Drehmoment des Motors, den Unterdruck im Saugrohr, die Druckdifferenz an einer Unterdruckdose, die öltemperatur o.dgl. Es ist möglich, aufgrund dieser Werte die Motortemperatur in gewissen Grenzen zu verändern, um den Betrieb des Verbrennungsmotors zu optimieren.By changing the relative position of the abutment to the thermostatic working element, the working range of the thermostatic valve can be changed in a simple manner. A fundamental change of the valve construction, which has been tried and tested many times in practice, is not necessary, so that proven parts and designs can be used. The work area can not only be switched to two extreme positions, but can also be set to intermediate positions, so that effective control is possible which, in addition to or instead of the existing outside temperature, can also use other values as reference variables for the control, for example the exhaust gas temperature and the speed and / or the torque of the engine, the vacuum in the intake manifold, the pressure difference in a vacuum can, the oil temperature or the like. Based on these values, it is possible to change the engine temperature within certain limits in order to optimize the operation of the internal combustion engine.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung der in der Zeichnung dargestellten Ausführungsbeispiele und den Unteransprüchen.

  • Fig. 1 zeigt einen Schnitt durch eine Regelvorrichtung entsprechend der Erfindung mit einem linearen Stellglied und einem quer zum Arbeitskolben des thermostatischen Arbeitselementes verschiebbaren Abstützkörper,
  • Fig. 2 eine Teilansicht einer Regelvorrichtung mit einem rotierenden Stellantrieb und einem ebenfalls quer zum Arbeitskolben des thermostatischen Arbeitselementes verschiebbaren Abstützkörper,
  • Fig. 3 eine um 90° gedrehte Ansicht der Ausführungsform nach Fig. 2,
  • Fig. 4 eine Teilansicht einer Regelvorrichtung mit einem linearen Stellantrieb und einer Hebelübersetzung zu dem Arbeitskolben des thermostatischen Arbeitselementes und
  • Fig. 5 eine Ausführungsform einer erfindungsgemäßen Regelvorrichtung mit einem Widerlager, das einen koaxial zu dem Arbeitskolben des thermostatischen Arbeitselementes bewegbaren Abstützkörper aufweist.
Further features and advantages of the invention result from the following description of the exemplary embodiments shown in the drawing and the subclaims.
  • 1 shows a section through a control device according to the invention with a linear actuator and a support body which can be displaced transversely to the working piston of the thermostatic working element,
  • F ig. 2 shows a partial view of a control device with a rotating actuator and a support body which can also be displaced transversely to the working piston of the thermostatic working element,
  • 3 is a view rotated by 90 ° of the embodiment according to FIG. 2,
  • Fig. 4 is a partial view of a control device with a linear actuator and a lever ratio to the working piston of the thermostatic working element and
  • 5 shows an embodiment of a control device according to the invention with an abutment which has a support body which can be moved coaxially to the working piston of the thermostatic working element.

Bei der Ausführungsform nach Fig. 1 ist ein Zulauf 17 für die Kühlflüssigkeit eines Verbrennungsmotors vorgesehen, der über ein Thermostatventil mit einem direkten Rücklauf 18 und/oder mit einem zu einem nicht dargestellten Wärmetauscher führenden Anschlußstutzen 15 verbindbar ist. Von dem Wärmetauscher führt in ebenfalls nicht dargestellter Weise eine Leitung zurück zu dem Verbrennungsmotor. Das Thermostatventil besitzt ein thermostatisches Arbeitselement, das einen Arbeitskolben 2 und ein Gehäuse 3 aufweist. In dem Gehäuse 3 ist ein Dehnstoff untergebracht, der sich bei Erwärmung ausdehnt und dabei den Arbeitskolben 2 aus dem Gehäuse 3 austreibt. Bei Abkühlung verringert der Dehnstoff sein Volumen, so daß der Arbeitskolben 2 wieder in das Gehäuse 3 hineingedrückt werden kann.In the embodiment according to FIG. 1, an inlet 17 for the coolant of an internal combustion engine is provided, which can be connected via a thermostatic valve to a direct return 18 and / or to a connection piece 15 leading to a heat exchanger (not shown). A line leads from the heat exchanger back to the internal combustion engine in a manner also not shown. The thermostatic valve has a thermostatic working element that an Ar has piston 2 and a housing 3. An expansion material is accommodated in the housing 3, which expands when heated and thereby drives the working piston 2 out of the housing 3. When cooling, the expansion material reduces its volume so that the working piston 2 can be pressed back into the housing 3.

Mit dem Gehäuse 3 des thermostatischen Arbeitselementes ist fest ein Ventilteller 4 verbunden, beispielsweise durch Aufpressen oder Aufbördeln o.dgl., der mit einem konischen Rand einen rechtwinkligen Ventilsitz 16 zugeordnet ist, der von dem Anschlußstutzen 15 gebildet wird. Das aus dem Ventilteller 4 und dem Ventilsitz 16 gebildete Ventil verschließt oder öffnet die Verbindung zwischen dem Zulauf 17 und dem zum Wärmetauscher führenden Anschlußstutzen 15. Der Ventilteller 4 wird mit einer konischen Druckfeder 19 in der dargestellten Schließstellung gehalten.With the housing 3 of the thermostatic working element, a valve plate 4 is fixedly connected, for example by pressing or flanging or the like, which is associated with a conical edge of a rectangular valve seat 16, which is formed by the connecting piece 15. The valve formed from the valve plate 4 and the valve seat 16 closes or opens the connection between the inlet 17 and the connection stub 15 leading to the heat exchanger. The valve plate 4 is held in the closed position shown with a conical compression spring 19.

Auf dem Gehäuse 3 ist mittels einer Gleitführung ein weiterer Ventilteller 20 angeordnet, der dem direkten Rücklauf 18 zugeordnet ist, der einen dem Ventilteller 20 zugeordneten Ventilsitz 21 aufweist. Der Ventilteller 20 ist mit einer Druckfeder 22 belastet, die sich im Bereich des Ventiltellers 4 an dem Gehäuse 3 abstützt. Der Zulauf 17 befindet sich zwischen den beiden Ventiltellern 4 und 20.A further valve plate 20 is arranged on the housing 3 by means of a slide guide, which is assigned to the direct return 18, which has a valve seat 21 assigned to the valve plate 20. The valve plate 20 is loaded with a compression spring 22 which is supported on the housing 3 in the region of the valve plate 4. The inlet 17 is located between the two valve plates 4 and 20.

Der Arbeitskolben 2 des thermostatischen Arbeitselementes stützt sich an einem Widerlager 1 ab.The working piston 2 of the thermostatic working element is supported on an abutment 1.

Bei einem Starten des Verbrennungsmotors und bei einem damit ausgelösten Umwälzen des Kühlmittels befindet sich das Thermostatventil in der in Fig. 1 dargestellten Position, d.h. die Verbindung von dem Zulauf zu dem Anschlußstutzen 15 ist geschlossen,und die Verbindung zu dem direkten Rücklauf 18 ist offen. Das Kühlmittel umströmt dabei das Gehäuse 3 des thermostatischen Arbeitselementes. Wenn eine durch die Auslegung des Dehnstoffes des thermostatischen Arbeitselementes festgelegte Temperatur erreicht wird, so wird der Arbeitskolben 2 nach einer bestimmten, von dem Dehnstoff abhängigen Charakteristik über einen bestimmten Arbeitsbereich ausgefahren. Der sich an dem Widerlager 1 abstützende Arbeitskolben 2 bewegt dann das Gehäuse 3 mit den Ventiltellern 4 und 20,'so daß über einen gewissen Temperaturbereich zunächst beide Ventile 4, 16 und 20, 21 offen sind, während anschließend bei weiterer Erhöhung der Temperatur das Ventil 20, 21 geschlossen wird und nur noch das Ventil 4, 16 geöffnet ist.When the internal combustion engine is started and the coolant is circulated, the thermostatic valve is in the position shown in FIG. 1, ie the connection from the inlet to the connecting piece 15 is closed and the connection to the direct return 18 is open. The coolant flows around the housing 3 of the thermo static work element. When a temperature determined by the design of the expansion material of the thermostatic working element is reached, the working piston 2 is extended over a specific working range according to a specific characteristic which is dependent on the expansion material. The working piston 2, which is supported on the abutment 1, then moves the housing 3 with the valve disks 4 and 20, so that initially both valves 4, 16 and 20, 21 are open over a certain temperature range, while the valve then increases as the temperature increases further 20, 21 is closed and only the valve 4, 16 is open.

Um trotz des durch die Wahl des Dehnstoffes festgelegten Temperaturbereiches, in welchem der Arbeitskolben 2 mit linearer Bewegung aus dem Gehäuse 3 ausgefahren wird, den Arbeitsbereich des Thermostatventils auf verschiedene Temperaturniveaus durch einen Eingriff von außen verlegen zu können, ist das Widerlager 1 mit einem unabhängig von und relativ zu dem thermostatischen Arbeitselement verstellbaren Abstützkörper 5 versehen, der quer zur Achse des Arbeitskolbens 2 verschiebbar ist und der eine schräg zur Achse des Arbeitskolbens 2 geneigte Abstützfläche 13 aufweist. Durch Verschieben des Abstützkörpers 5 quer zu dem Arbeitskolben können die jeweils zum Einsatz kommenden Abstützpunkte auf einen unterschiedlichen Abstand zu dem Gehäuse 3 und damit dem Ventilteller 4 in einem Bereich X verändert werden, so daß damit von außen der Arbeitsbereich des Thermostatventils veränderbar ist. Die Verschieberichtung des Abstützkörpers 5 und die Neigung der Abstützfläche 13 werden relativ zu der Achse des Arbeitskolbens 2 so gewählt, daß die Verstellbewegung des Abstützkörpers mit einer Untersetzung in eine Veränderung des Bereichs X umgewandelt wird, gegebenenfalls kann auch eine Übersetzung eingestellt werden. In der dargestellten Stellung des Abstützkörpers 5 befindet sich der am weitesten von dem Gehäuse 3 und dem Ventiller 4 entfernte Abstützpunkt der Abstützfläche 13 im Einsatz, so daß ein Öffnen des Ventils 4, 16 (und Schließen des Ventils 20, 21) erst bei einer erhöhten Temperatur des Kühlmittels erfolgt, was beispielsweise bei niedrigen Außentemperaturen gewünscht ist. Der Arbeitskolben 2 muß erst einen Leerweg von der Größe X zurücklegen, bevor er sich tatsächlich an der Abstützfläche 13 abstützt und durch ein weiteres Ausfahren aus dem Gehäuse 3 dieses und die Ventileteller 4 und 20 verschieben kann. Durch Verschieben des Arbeitskörpers 5 aus der dargestellten Extremstellung (in Fig. 1 nach links) kann der Leerweg des Arbeitskolbens 2 verkleinert werden, so daß damit der Arbeitsbereich des thermostatischen Arbeitselementes und damit des Thermostatventils auf ein niedrigeres Temperaturniveau verlagert wird, wie dies beispielsweise bei hohen Außentemperaturen gewünscht ist. Bei gleicher Erwärmung des thermostatischen Arbeitselementes erreicht dann der Arbeitskolben 2 die Anschlagfläche 13 früher, so daß dann die öffnungsbewegung des Ventils 4, 16 (und die Schließbewegung des Ventils 20, 21) früher beginnt. Wie leicht verständlich ist, können auch zwischen den beiden Endpunkten der schrägen Abstützfläche 13 liegende Abstützpunkte gewählt werden, so daß der Arbeitsbereich des Thermostatventils in den gewählten Grenzen stufenlos veränderbar ist.In order to be able to relocate the working range of the thermostatic valve to different temperature levels by an external intervention, despite the temperature range in which the working piston 2 is extended from the housing 3 with linear movement, the abutment 1 is independent of and provided relative to the thermostatic working element adjustable supporting body 5 which is displaceable transversely to the axis of the working piston 2 and which has a supporting surface 13 inclined to the axis of the working piston 2. By moving the support body 5 transversely to the working piston, the support points used in each case can be changed to a different distance from the housing 3 and thus the valve plate 4 in an area X, so that the working area of the thermostatic valve can thus be changed from the outside. The direction of displacement of the support body 5 and the inclination of the support surface 13 are selected relative to the axis of the working piston 2 so that the adjustment movement of the support body is converted into a change in the area X with a reduction, if necessary a translation can also be set. In the illustrated position of the support body 5, the support point 13 of the support surface 13, which is the most distant from the housing 3 and the valve 4, is in use, so that opening of the valve 4, 16 (and closing of the valve 20, 21) takes place only at an elevated level Temperature of the coolant takes place, which is desirable, for example, at low outside temperatures. The working piston 2 must first travel an empty path of size X before it actually engages Supporting surface 13 supports and can move this and the valve plate 4 and 20 by a further extension of the housing 3. By moving the working body 5 from the extreme position shown (to the left in FIG. 1), the free travel of the working piston 2 can be reduced, so that the working range of the thermostatic working element and thus the thermostatic valve is thus shifted to a lower temperature level, as is the case, for example, with high temperatures Outside temperatures is desired. With the same heating of the thermostatic working element, the working piston 2 then reaches the stop surface 13 earlier, so that the opening movement of the valve 4, 16 (and the closing movement of the valve 20, 21) begins earlier. As is easy to understand, support points lying between the two end points of the inclined support surface 13 can also be selected, so that the working range of the thermostatic valve can be varied continuously within the selected limits.

Das Verschieben des Abstützkörpers 5 des Widerlagers 1 erfolgt bei der dargestellten Ausführungsform durch ein Stellglied 9, das als thermostatisches Arbeitselement ausgebildet ist. Bei Erwärmung wird ein Arbeitskolben 23 aus dem thermostatischen Arbeitselement 9 ausgefahren, der bei Abkühlung entsprechend wieder zurückbewegt wird, wozu eine Rückstellfeder 25 vorgesehen ist, die den Abstützkörper 5 belastet, der ein koaxial zu dem Arbeitskolben 23 ausgerichteter Kolben ist, der in einer Führung eines Gehäuses 26 gleitet, die einteilig mit dem Anschlußstutzen 15 ausgebildet ist. In dieses Gehäuse 26 ist das thermostatische Arbeitselement 9 mit einem Gewindeansatz 27 eingeschraubt.In the embodiment shown, the supporting body 5 of the abutment 1 is displaced by an actuator 9, which is designed as a thermostatic working element. When heated, a working piston 23 is extended from the thermostatic working element 9, which is correspondingly moved back on cooling, for which purpose a return spring 25 is provided, which loads the support body 5, which is a piston which is aligned coaxially with the working piston 23 and which is in a guide in a guide Housing 26 slides, which is integrally formed with the connecting piece 15. The thermostatic working element 9 is screwed into this housing 26 with a threaded shoulder 27.

Das thermostatische Arbeitselement 9 ist in bekannter Weise mit einem elektrischen Heizelement versehen, beispielsweise einem PTC-Widerstand, so daß die lineare Bewegung des Arbeitskolbens und damit das Einstellen des Arbeitsbereiches des Thermostatventils elektrisch gesteuert werden kann. Die Stromzufuhr zu dem thermostatischen Arbeitselement wird von einem Signalwandler 28 bewirkt, der aufgrund verschiedenster Führungs- größen aktiviert werden kann. Beispielsweise ist es damit möglich, nicht nur die Außentemperatur oder auch anstelle der Außentemperatur weitere Führungsgrößen für eine Veränderung des Arbeitsbereiches des Thermostatventils heranzuziehen, beispielsweise die Abgastemperatur, die Drehzahl oder das Drehmoment des Verbrennungsmotors, den Unterdruck im Saugrohr, die Druckdifferenz in einer Unterdruckdose oder die öltemperatur o.dgl. Um dabei den Arbeitsbereich des Thermostatventils verändern zu können, auch wenn der Arbeitskolben 2 des thermostatischen Arbeitselementes des Thermostatventils bereits ganz oder teilweise ausgefahren ist, muß die Rückstellfeder 25 so ausgelegt werden, daß sie die Kraft der Feder 19 überwinden und das Ventil 4, 16 durch Verschieben des Gehäuses 3 mit dem Ventilteller 4 öffnen kann.The thermostatic working element 9 is provided in a known manner with an electrical heating element, for example a PTC resistor, so that the linear movement of the working piston and thus the setting of the working range of the thermostatic valve can be controlled electrically. The stream supply to the thermostatic working element is effected by a signal converter 28, which can be activated due sizes verschiedenster F ührungs-. For example, it is therefore possible to use not only the outside temperature or the outside temperature instead further reference variables for a change of the operating range of the thermostat valve, for example, the exhaust gas temperature, the speed or the torque of the internal combustion engine, the negative pressure in the intake manifold, the pressure difference in a U nterdruckdose or the oil temperature or the like In order to be able to change the working range of the thermostatic valve, even if the working piston 2 of the thermostatic working element of the thermostatic valve is already fully or partially extended, the return spring 25 must be designed so that it overcomes the force of the spring 19 and the valve 4, 16 through Moving the housing 3 with the valve plate 4 can open.

Bei dem dargestellten Ausführungsbeispiel ist der Anschlußstutzen 15 mit dem Thermostatventil und dem verstellbaren Widerlager 1 als eine Baueinheit ausgebildet, die als Ganzes montiert und gegebenenfalls ausgetauscht werden kann.In the illustrated embodiment, the connecting piece 15 with the thermostatic valve and the adjustable abutment 1 is formed as a structural unit which can be assembled as a whole and, if necessary, exchanged.

Das Ausführungsbeispiel nach Fig. 1 kann auch derart abgewandelt werden, daß die Vorrichtung ohne Zufuhr einer Hilfsenergie arbeitet, d.h., das thermostatische Arbeitselement 9 führt eine Verstellung des Abstützkörpers 5, abhängig von der Umgebungstemperatur, aus. Beispielsweise kann das thermostatische Arbeitselement 9 durch Wahl des in ihm enthaltenen Dehnstoffes so ausgelegt werden, daß bei niedriger Umgebungstemperatur bis zum Beispiel 15° C ein öffnen des Ventils 4, 16 ab einer höheren Temperatur des Kühlmittels beginnt als bei Umgebungstemperaturen von mehr als 15° C. In diesem Falle müßten gegenüber der Darstellung nach Fig. 1 das thermostatische Arbeitselement 9 und die Rückstellfeder 25 gegeneinander vertauscht werden, so daß bei eingefahrenem Arbeitskolben 23 des Arbeitselementes niedrige Umgebungstemperatur der in Einsatz kommende Abstützpunkt der Abstützfläche 13 weiter von dem Gehäuse 3 und dem Ventiller 4 und auch dem Ventilsitz 16 entfernt ist, als bei ausgefahrenem Arbeitskolben 23 des Arbeitselementes 9 (höhere Umgebungstemperatur).The exemplary embodiment according to FIG. 1 can also be modified in such a way that the device works without the supply of auxiliary energy, i.e. the thermostatic working element 9 adjusts the support body 5 depending on the ambient temperature. For example, the thermostatic working element 9 can be designed by the choice of the expansion material contained in it so that at low ambient temperatures up to, for example, 15 ° C., the valve 4, 16 opens at a higher temperature of the coolant than at ambient temperatures of more than 15 ° C. 1, the thermostatic working element 9 and the return spring 25 would have to be interchanged, so that when the working piston 23 of the working element is retracted, the ambient temperature of the supporting point 13 of the supporting surface 13 that is being used is further from the housing 3 and the valve 4 and also the valve seat 16 is removed than when the working piston 23 of the working element 9 is extended (higher ambient temperature).

In den Fig. 2 bis 5 sind weitere Ausführunsbeispiele für Stellantriebe dargestellt, mit denen der Arbeitsbereich eines Thermostatventils entsprechend Fig. 1 verlagert werden kann, indem für den dem Arbeitskolben 3 des thermostatischen Arbeitselementes ein von außen verstellbares Widerlager vorgesehen ist. Dabei können lineare Stellantriebe oder auch drehende Stellantriebe vorgesehen werden.'Die dargestellten Ausführungsbeispiele stellen nur einen Ausschnitt aus den verschiedensten Möglichkeiten dar, die mit oder ohne Zufuhr einer Hilfsenergie arbeiten können. Es können ohne weiteres auch Stellorgane mit hydraulischen oder pneumatischen Stellgliedern vorgesehen werden.2 to 5 show further exemplary embodiments of actuators with which the working range of a thermostatic valve can be shifted in accordance with FIG. 1 by providing an externally adjustable abutment for the working piston 3 of the thermostatic working element. In this case, linear actuators or rotating actuators can be provided. The exemplary embodiments shown represent only a section of the most varied possibilities, which can work with or without the supply of auxiliary energy. Actuators with hydraulic or pneumatic actuators can also be easily provided.

Bei dem Ausführungsbeispiel nach Fig. 2 und 3 ist ein in seiner Drehrichtung umkehrbarer Drehmotor 10 als Stellglied vorgesehen, der mit einem Antriebsritzel 29 in eine Zahnstange 30 eines Abstützkörpers 6 eingreift, der quer zu der Achse eines Arbeitskolbens 2 eines thermostatischen Arbeitselementes hin und her bewegbar ist, um den Arbeitsbereich um den Betrag X eines Thermostatventils zu verstellen. Mit der Zahnstange 30 ist eine schräg zur Achse des Arbeitskolbens 2 verlaufende Abstützfläche 14 verbunden. Dabei wird der Drehmotor 10 so ausgelegt, daß er auch gegen die Kraft der Feder 19 des Thermostatventils arbeiten kann.In the embodiment according to FIGS. 2 and 3, a reversible rotary motor 10 is provided as an actuator, which engages with a drive pinion 29 in a rack 30 of a support body 6, which can be moved back and forth transversely to the axis of a working piston 2 of a thermostatic working element is to adjust the work area by the amount X of a thermostatic valve. A support surface 14 extending obliquely to the axis of the working piston 2 is connected to the toothed rack 30. The rotary motor 10 is designed so that it can also work against the force of the spring 19 of the thermostatic valve.

Bei dem Ausführungsbeispiel nach Fig. 4 ist wieder ein Stellglied 11 mit linearer Antriebsbewegung vorgesehen, beispielweise ein Thermostatelement oder ein Hubmagnet oder ein Motor mit einer Drehspindel, der einen als doppelarmigen Hebel ausgebildeten Abstützkörper 7 belastet, der um eine quer zur Achse eines Arbeitskolbens 2 eines thermostatischen Arbeitselementes eines Thermostatventils verlaufende Achse verschwenkbar ist. Koaxial zu dem Arbeitskolben 2 wird der doppelarmige Hebel 7 mit einer Druckfeder 31 belastet, die die Rückstellbewegung bewirkt und die stärker als die nicht dargestellten Ventilfedern ist.In the exemplary embodiment according to FIG. 4, an actuator 11 with a linear drive movement is again provided, for example a thermostatic element or a solenoid or a motor with a rotating spindle, which loads a support body 7 designed as a double-armed lever, which around a transverse to the axis of a working piston 2 one thermostatic working element of a thermostatic valve extending axis is pivotable. Coaxial to the working piston 2, the double-armed lever 7 is loaded with a compression spring 31, which causes the return movement and which is stronger than the valve springs, not shown.

Bei dem Ausführungsbeispiel nach Fig. 5 ist der Abstützkörper 8 unmittelbar in axialer Richtung des Arbeitskolbens 2 eines thermostatischen Arbeitselementes eines Thermostatventils verstellbar. Der Abstützkörper 8 ist beispielsweise der Arbeitskolben eines thermostatischen Arbeitselementes 12, das elektrisch beheizt ist, d.h. mit einer Hilfsenergie arbeitet, oder das ohne Hilfsenergie arbeitet und auf die Umgebungstemperatur derart anspricht, daß sein Arbeitskolben bei niedriger Umgebungstemperatur eingefahren bleibt und erst ab einer bestimmten Umgebungstemperatur ausfährt. In gleicher Weise kann der Abstützkörper 8 auch die Spindel eines Drehspindelmotors sein. Ebenso kann er auch der Kolben eines Hubmagneten sein.5, the support body 8 is directly adjustable in the axial direction of the working piston 2 of a thermostatic working element of a thermostatic valve. The support body 8 is, for example, the working piston of a thermostatic working element 12, which is electrically heated, i.e. works with an auxiliary energy or that works without auxiliary energy and responds to the ambient temperature in such a way that its working piston remains retracted at a low ambient temperature and only extends from a certain ambient temperature. In the same way, the support body 8 can also be the spindle of a rotating spindle motor. It can also be the piston of a solenoid.

Anstelle einer Zahnschiene entsprechend dem Ausführungsbeispiel nach Fig. 2 und 3 kann auch ein um eine zum Ritzel 29 parallele Achse drehbare, mit einer Außenverzahnung versehene Scheibe vorgesehen werden, die auf ihrer dem Arbeitskolben 2 zugewandten Seite mit einer als Abstützfläche dienenden Nockenfläche versehen ist, durch die unterschiedliche Arbeitsbereiche für den Arbeitskolben einstellbar sind.Instead of a toothed rail according to the exemplary embodiment according to FIGS. 2 and 3, it is also possible to provide a disk which can be rotated about an axis parallel to the pinion 29 and is provided with external teeth, which is provided on its side facing the working piston 2 with a cam surface serving as a supporting surface the different working areas for the working piston are adjustable.

Claims (11)

1. Vorrichtung zum Regeln der Temperatur in einem Kühlkreislauf eines Verbrennungsmotors, insbesondere eines Kraftfahrzeugmotors, die ein Thermostatventil enthält, das den Kühlmittelfluß von dem Verbrennungsmotor durch einen direkten Rücklauf und/oder einen Wärmetauscher zurück zum Verbrennungsmotor regelt und das ein thermostatisches Arbeitselement enthält, dessen Gehäuse einen Ventilteller eines zu dem Wärmetauscher führenden Ventils trägt und dessen bei Erwärmung ausfahrender Arbeitskolben einem Widerlager gegenüberliegt, dadurch gekennzeichnet, daß die Position des Widerlagers (1) derart veränderbar ist, daß es Abstützpunkte für den Arbeitskolben (2) bildet, deren Abstand zu dem Gehäuse (3) mit dem Ventilteller (4) verstellbar ist.1. Device for regulating the temperature in a cooling circuit of an internal combustion engine, in particular a motor vehicle engine, which contains a thermostatic valve which regulates the flow of coolant from the internal combustion engine through a direct return and / or a heat exchanger back to the internal combustion engine and which contains a thermostatic working element whose housing carries a valve plate of a valve leading to the heat exchanger and whose working piston, which extends when heated, is opposite an abutment, characterized in that the position of the abutment (1) can be changed such that it forms support points for the working piston (2), the distance to the housing (3) with the valve plate (4) is adjustable. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß als Widerlager ein verstellbarer Abstützkörper (5, 6, 7, 8) für den Arbeitskolben (2) vorgesehen ist, der an ein Stellorgan (9, 10, 11, 12) angeschlossen ist.2. Device according to claim 1, characterized in that an adjustable support body (5, 6, 7, 8) for the working piston (2) is provided as an abutment, which is connected to an actuator (9, 10, 11, 12). 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Stellorgan ein thermostatisches Arbeitselement (9, 12) ist.3. Apparatus according to claim 2, characterized in that the actuator is a thermostatic working element (9, 12). 4. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Stellorgan ein durch Hilfsenergie betätigbares Stellglied (9, 10, 11, 12) enthält.4. The device according to claim 2, characterized in that the actuator contains an actuatable by auxiliary power actuator (9, 1 0 , 11, 12). 5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß als Stellglied ein elektrisch beheizbares thermostatisches Arbeitselement (9, 11) dient.5. The device according to claim 4, characterized in that an electrically heatable thermostatic working element (9, 11) serves as the actuator. 6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Abstützkörper (7, 8) in axialer Richtung des Antriebskolbens (2) verstellbar ist.6. Device according to one of claims 1 to 5, characterized in that the support body (7, 8) is adjustable in the axial direction of the drive piston (2). 7. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Abstützkörper (5, 6) quer zur Achse des Antriebskolbens (2) verstellbar und mit einer schräg zur Achse des Arbeitskolbens (2) geneigten Abstützfläche (13, 14) versehen ist.7. Device according to one of claims 1 to 5, characterized in that the support body (5, 6) transverse to the axis of the drive piston (2) adjustable and provided with an inclined to the axis of the working piston (2) inclined support surface (13, 14) is. 8. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Abstützkörper eine verdrehbare Scheibe ist, die eine dem Arbeitskolben (2) zugewandte Nockenfläche aufweist.8. Device according to one of claims 1 to 5, characterized in that the support body is a rotatable disc which has a working surface (2) facing cam surface. 9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Widerlager (1) mit dem Abstützkörper (5) in einem Anschlußstutzen (15) untergebracht ist.9. Device according to one of claims 1 to 8, characterized in that the abutment (1) with the support body (5) is housed in a connecting piece (15). 10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß der Anschlußstutzen (15) als Ventilsitz (16) für den mit dem Gehäuse (3) des thermostatischen Arbeitselementes verbundenen Ventilteller (4) gestaltet ist.10. The device according to claim 9, characterized in that the connecting piece (15) is designed as a valve seat (16) for the valve plate (4) connected to the housing (3) of the thermostatic working element. 11. Vorrichtung nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß der Anschlußstutzen (15) mit dem thermostatischen Arbeitselement und dem Widerlager (1) und dem Stellglied (9) eine Baueinheit bildet.11. The device according to claim 9 or 10, characterized in that the connecting piece (15) with the thermostatic working element and the abutment (1) and the actuator (9) forms a structural unit.
EP83105752A 1982-07-13 1983-06-11 Temperature controlling device in a cooling circuit of an internal-combustion engine, especially for an automotive engine Expired EP0098979B1 (en)

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DE3226104A DE3226104C2 (en) 1982-07-13 1982-07-13 Thermostatic valve for regulating the temperature of the cooling liquid in an internal combustion engine
DE3226104 1982-07-13

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EP0098979B1 EP0098979B1 (en) 1986-12-30

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0128365A2 (en) * 1983-06-04 1984-12-19 Behr-Thomson Dehnstoffregler GmbH Cooling device for an internal-combustion engine
FR2577278A1 (en) * 1985-02-12 1986-08-14 Behr Thomson Dehnstoffregler THERMOSTATIC VALVE VALVE FOR CONTROLLING THE TEMPERATURE OF THE COOLANT OF AN INTERNAL COMBUSTION ENGINE
EP0272117A2 (en) * 1986-12-19 1988-06-22 Adwest Group PLC Thermostatic control system
EP2333269A3 (en) * 2009-09-15 2014-01-08 Behr Thermot-tronik GmbH Multi-directional valve with low pressure loss

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3315308A1 (en) * 1983-04-27 1984-10-31 Gustav Wahler Gmbh U. Co, 7300 Esslingen Cooling water regulator for internal combustion engines
DE3332587A1 (en) * 1983-09-09 1985-03-28 Behr-Thomson Dehnstoffregler Gmbh, 7014 Kornwestheim DEVICE FOR REGULATING THE TEMPERATURE IN A COOLING CIRCUIT OF AN INTERNAL COMBUSTION ENGINE
DE3415876A1 (en) * 1984-04-28 1985-10-31 Behr-Thomson Dehnstoffregler Gmbh, 7014 Kornwestheim CONTROL VALVE FOR THE COOLANT CIRCUIT OF AN INTERNAL COMBUSTION ENGINE, ESPECIALLY A MOTOR VEHICLE
DE3420982A1 (en) 1984-06-06 1985-10-24 Daimler-Benz Ag, 7000 Stuttgart Control valve for the cooling water circuit of an internal combustion engine
DE3516502C2 (en) * 1985-05-08 1994-05-11 Wahler Gmbh & Co Gustav Temperature control device for the coolant of internal combustion engines
US4875437A (en) * 1987-12-03 1989-10-24 Procedes Vernet Apparatus for controlling the flow of cooling fluid in an engine
DE3817952A1 (en) * 1988-05-27 1989-11-30 Wahler Gmbh & Co Gustav Cooling water regulator for internal combustion engines
US4890790A (en) * 1988-10-03 1990-01-02 Robertshaw Controls Company Engine cooling system, structure therefor and methods of making the same
US4961530A (en) * 1988-10-03 1990-10-09 Robert Shaw Controls Company Engine cooling system, structure therefor and methods of making the same
DE4022731A1 (en) * 1990-07-17 1992-01-23 Eberspaecher J HEAT UNIT COOLANT CIRCUIT OF A VEHICLE ENGINE
DE4042404A1 (en) * 1990-07-17 1992-11-05 Eberspaecher J Thermostatically controlled coolant circuit for vehicular engine
DE4106081A1 (en) * 1991-01-08 1992-07-09 Behr Thomson Dehnstoffregler THERMOSTAT VALVE FOR CONTROLLING THE TEMPERATURE OF THE COOLANT OF AN INTERNAL COMBUSTION ENGINE, ESPECIALLY A MOTOR VEHICLE ENGINE
DE9102294U1 (en) * 1991-02-27 1992-06-25 Behr-Thomson Dehnstoffregler GmbH & Co, 7014 Kornwestheim Thermostat valve
DE4139328A1 (en) * 1991-11-29 1993-06-03 Behr Thomson Dehnstoffregler RINGSCHIEBERTHERMOSTATE INSERT
JP2580298Y2 (en) * 1991-12-16 1998-09-03 マツダ株式会社 Thermostat device for internal combustion engine
DE4330215A1 (en) * 1993-09-07 1995-03-09 Behr Thomson Dehnstoffregler Cooling system for an internal combustion engine of a motor vehicle with a valve
US5657722A (en) * 1996-01-30 1997-08-19 Thomas J. Hollis System for maintaining engine oil at a desired temperature
DE19725222A1 (en) * 1997-06-15 1998-12-17 Behr Thermot Tronik Gmbh & Co Thermostat valve for coolant circuit of IC engine
DE19728009C2 (en) * 1997-07-01 2003-10-02 Itw Henschel Gmbh Thermostatic valve for regulating the temperature of a coolant in a cooling system of an internal combustion engine
DE19728814A1 (en) * 1997-07-05 1999-01-07 Behr Thermot Tronik Gmbh & Co Cooling system for an internal combustion engine of a motor vehicle
US6634322B2 (en) 2001-04-12 2003-10-21 Cold Fire, Llc Heat exchanger tempering valve
US6764020B1 (en) 2003-02-28 2004-07-20 Standard-Thomson Corporation Thermostat apparatus for use with temperature control system
FR2856161B1 (en) * 2003-06-11 2007-02-16 Vernet Sa THERMOSTATIC VALVE FOR A FLUID CIRCUIT CIRCUIT AND THERMAL MOTOR ASSOCIATED WITH A COOLING CIRCUIT COMPRISING SUCH A VALVE
JP4561546B2 (en) * 2005-09-08 2010-10-13 トヨタ自動車株式会社 Cooling device for internal combustion engine
DE102013223907A1 (en) 2013-11-22 2015-06-11 Volkswagen Aktiengesellschaft Adjusting means for a coolant circuit and a motor vehicle equipped with such a control means

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1438067A (en) * 1917-04-12 1922-12-05 Springer Eranklin Wesley Cooling and heating system for internal-combustion engines
US2701102A (en) * 1950-09-25 1955-02-01 Arthur H Albrecht Heating system and thermostat for use with internal-combustion engines
DE1451669A1 (en) * 1963-06-20 1970-02-12 Daimler Benz Ag Thermostat for different opening temperatures or opening strokes, especially on internal combustion engines
DE2040214A1 (en) * 1969-10-06 1971-04-15 Robur Werke Lastkraftwagen Und Method for avoiding overshooting of the temperature of air-cooled temperature-controlled internal combustion engines as well as device for carrying out the method
US4311271A (en) * 1980-05-29 1982-01-19 Naqvi Zargham H Controller for maintaining a constant temperature of discharged liquid
GB2081845A (en) * 1980-05-29 1982-02-24 Trucktonics Ltd Control valve

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2377028A (en) * 1943-10-29 1945-05-29 John Reiner & Company Cooling system and thermostatically controlled by-pass valve
US2401646A (en) * 1945-02-28 1946-06-04 Johnson John Frank Temperature control for cooling fluid of internal-combustion engines
GB695730A (en) * 1949-11-28 1953-08-19 Daimler Benz Ag Improvements relating to temperature regulations in internal combustion engines
DE861937C (en) * 1949-11-29 1953-01-08 Daimler Benz Ag Device for temperature control on internal combustion engines
US2833478A (en) * 1955-06-09 1958-05-06 George W Middleton Thermostatic control of water cooling system of motor vehicle
US2881616A (en) * 1956-06-20 1959-04-14 Gen Motors Corp Thermostatic power elements
FR1401314A (en) * 1964-04-20 1965-06-04 Chausson Usines Sa Device for regulating the temperature of the liquid in the cooling circuits of vehicle engines
US4175697A (en) * 1977-09-01 1979-11-27 Emerson Electric Co. (H&H Precision Products Div.) Thermally actuated phase change operated control valve for use in an energy conservation system
DE2943091A1 (en) * 1979-10-25 1981-05-14 Klöckner-Humboldt-Deutz AG, 5000 Köln Cooling system for IC engine - has auxiliary control on thermostatic valves to prevent overheating during starting
US4325508A (en) * 1980-04-02 1982-04-20 Emerson Electric Co. Thermostatic expansion valve with remote adjustment
GB2086536A (en) * 1980-10-28 1982-05-12 Ford Motor Co Thermostat assembly
US4347973A (en) * 1981-01-21 1982-09-07 Robertshaw Controls Company Internal combustion engine coolant system, thermostat therefor and methods of making the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1438067A (en) * 1917-04-12 1922-12-05 Springer Eranklin Wesley Cooling and heating system for internal-combustion engines
US2701102A (en) * 1950-09-25 1955-02-01 Arthur H Albrecht Heating system and thermostat for use with internal-combustion engines
DE1451669A1 (en) * 1963-06-20 1970-02-12 Daimler Benz Ag Thermostat for different opening temperatures or opening strokes, especially on internal combustion engines
DE2040214A1 (en) * 1969-10-06 1971-04-15 Robur Werke Lastkraftwagen Und Method for avoiding overshooting of the temperature of air-cooled temperature-controlled internal combustion engines as well as device for carrying out the method
US4311271A (en) * 1980-05-29 1982-01-19 Naqvi Zargham H Controller for maintaining a constant temperature of discharged liquid
GB2081845A (en) * 1980-05-29 1982-02-24 Trucktonics Ltd Control valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0128365A2 (en) * 1983-06-04 1984-12-19 Behr-Thomson Dehnstoffregler GmbH Cooling device for an internal-combustion engine
EP0128365A3 (en) * 1983-06-04 1985-07-31 Behr-Thomson Dehnstoffregler Gmbh Cooling device for an internal-combustion engine
FR2577278A1 (en) * 1985-02-12 1986-08-14 Behr Thomson Dehnstoffregler THERMOSTATIC VALVE VALVE FOR CONTROLLING THE TEMPERATURE OF THE COOLANT OF AN INTERNAL COMBUSTION ENGINE
EP0272117A2 (en) * 1986-12-19 1988-06-22 Adwest Group PLC Thermostatic control system
EP0272117A3 (en) * 1986-12-19 1989-04-19 Adwest Group PLC Thermostatic control system
EP2333269A3 (en) * 2009-09-15 2014-01-08 Behr Thermot-tronik GmbH Multi-directional valve with low pressure loss

Also Published As

Publication number Publication date
DE3226104A1 (en) 1984-01-26
EP0098979B1 (en) 1986-12-30
JPS5923028A (en) 1984-02-06
DE3226104C2 (en) 1985-02-07
US4522334A (en) 1985-06-11
DE3368723D1 (en) 1987-02-05

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