EP1992801A2 - Motor vehicle with linearly regulated engine fan - Google Patents

Motor vehicle with linearly regulated engine fan Download PDF

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Publication number
EP1992801A2
EP1992801A2 EP08009057A EP08009057A EP1992801A2 EP 1992801 A2 EP1992801 A2 EP 1992801A2 EP 08009057 A EP08009057 A EP 08009057A EP 08009057 A EP08009057 A EP 08009057A EP 1992801 A2 EP1992801 A2 EP 1992801A2
Authority
EP
European Patent Office
Prior art keywords
linear regulator
water
motor vehicle
engine
fan
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Withdrawn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
EP08009057A
Other languages
German (de)
French (fr)
Other versions
EP1992801A3 (en
Inventor
Günther Deltef
Willi Schmitt
Klaus Zametzky
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.)
Sitronic & Co KG GmbH
GM Global Technology Operations LLC
Original Assignee
Sitronic & Co KG GmbH
GM Global Technology Operations LLC
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 Sitronic & Co KG GmbH, GM Global Technology Operations LLC filed Critical Sitronic & Co KG GmbH
Publication of EP1992801A2 publication Critical patent/EP1992801A2/en
Publication of EP1992801A3 publication Critical patent/EP1992801A3/en
Withdrawn legal-status Critical Current

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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
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
    • F01P7/048—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using electrical drives
    • 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
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/34—Heat exchanger incoming fluid temperature

Definitions

  • the invention relates to a motor vehicle, in particular a passenger car, with an engine fan for cooling an internal combustion engine.
  • the voltage of the motor blower is controlled by a cooled linear regulator.
  • the internal combustion engine of a motor vehicle is cooled by a water circuit to which a motor fan belongs.
  • the engine fan is driven either electrically or mechanically while the engine is running. When stopping the engine, there is usually a lag of the then electrically operated engine fan with appropriate engine temperature.
  • the engine fan has an electric motor whose power is usually adjustable in stages.
  • the power control is done with parallel or serial switches or relays.
  • stepless control is also known with controllers based on pulse width modulation, the so-called PWM controllers.
  • the PWM regulators thus operate in the engine compartment with its often quite high temperatures.
  • the US 2003/0058617 A1 describes a linear controller for the speed control of the blower of an air conditioner in a car. Since the temperatures in the vehicle interior are generally much more moderate than in the engine compartment, it is sufficient for the US 2003/0058617 A1 that the linear regulator for its cooling in the Air flow of the air conditioning is placed, and here, for example, close to the rotor blades of the fan. Similar applications of the linear regulator for air conditioning systems also reveal the US 2005/02642253 as well as the EP 1475884 A2 ,
  • a motor vehicle with a water circuit for cooling its internal combustion engine is proposed.
  • the water cycle includes an electrically powered motor fan associated with a linear regulator, i. h., the voltage of the motor blower is controlled by the linear regulator.
  • the linear regulator is thermally coupled to the water cycle.
  • the proposed solution allows stepless regulation of the motor fan. Due to the stepless controllability results first a minimal noise with minimal load on the battery. Compared to a control with relays results in greater reliability through fewer electrical connections, fewer cables and by the presence of overheating protection fewer failures with less risk of fire. Also, the use of a linear regulator instead of relays leads to about 50% reduced weight at least 80% lower Space required at less than half the price. Furthermore, the installation costs are lower and a diagnosis in case of failure can be realized.
  • the linear regulator Compared to PWM controllers, the linear regulator has a much better electromagnetic compatibility, since the former are disadvantageously clocked at 20 kHz.
  • the PWM regulator therefore requires extensive measures to ensure electromagnetic compatibility, which makes the PWM regulator a component that today is about three times as expensive as a linear regulator.
  • the solution allows for the first time a stepless control of the engine fan in small and mid-range vehicles at acceptable prices, but in turn requires an intervention in the complex cooling system of the internal combustion engine by dissipating the power loss of the linear regulator to the water cycle.
  • the linear regulator is in thermal contact with a water conduit of the water cycle. This makes it possible to choose a position of the linear regulator close to the engine fan in the design of the vehicle in order to reduce the wiring overhead.
  • the water pipe has a recess into which the linear regulator or a cooling block assigned to the linear regulator is partially embedded.
  • the water pipe consists for example of die-cast aluminum, in the recess of the linear regulator or its cooling block is inserted and sealed accordingly.
  • the linear regulator is thermally coupled to the cooling liquid of the water cycle, which is more efficient than cooling via the medium air.
  • the linear regulator stands in thermal contact with a radiator associated with the water cycle and containing the cooling fluid.
  • the linear regulator can rest directly on the (water) cooler.
  • the linear regulator is arranged in the air flow of the engine blower. It is insofar made an air cooling, wherein the intervention in said water cooling circuit is minimal.
  • Another aspect of the invention relates to a water cooler, which is designed for releasable connection to a linear regulator, wherein the linear regulator is used to control the motor fan.
  • the water cooler can be prepared in that the linear regulator is inserted into the water cooler or attached via a clip connection with this.
  • An embodiment of the water cooler has a releasably connected to him linear regulator.
  • the linear regulator can be mounted on one of the side coolant tanks of the water cooler. Because of the lower temperatures of the coolant, the coolant outlet side end tank is preferably selected here.
  • Another aspect of the invention relates to a CRFM module having an engine fan and a water cooler as described above.
  • results from the made Function integration reduces space requirements for engine compartment components with greater freedom in developing a new vehicle.
  • FIG. 1 a motor vehicle 1 in plan view.
  • the motor vehicle 1 has an internal combustion engine 2, in front of which the water cooler 3 and the air conditioning condenser 4 are arranged.
  • a motor fan 5 is provided for the radiator after a shutdown of the motor vehicle 1.
  • Water cooler 3, air conditioning condenser 4 and engine fan 5 may be individual components for the separate cooling circuits, or be components of a CRFM module (English: condenser radiator fan module) 6, as indicated by the dashed line.
  • the CRFM module 6 cools the engine 2 in a known manner via the water pipe 7 with cooling liquid.
  • a linear regulator 8 is inserted in the water pipe 7, a linear regulator 8 is inserted.
  • the linear regulator 8 is connected via an electrical line 9 to the CRFM module 6 and regulates the fan or motor fan 5 continuously.
  • the fan noise during caster and the load on the battery (not shown) is reduced to a minimum. This succeeds despite the sometimes high temperatures in the engine compartment with the linear regulator 8, which can be sufficiently cooled by the coolant in the water cycle.
  • FIG. 2 shows a water cooler 3, an end tank 12, 13, a linear regulator 8 is screwed. Since the coolant inlet 13 in FIG. 2 right and the coolant outlet 14 is right, this is chosen because of the lower temperatures of the coolant outlet side end tank 12.
  • the water cooler has a well adapted to the dimensions of the linear regulator 8 depression (not shown), which receives the linear regulator partially.
  • the water cooler 3 may be part of the CRFM module 6 of FIG. 2 be.
  • FIG. 3 This has a recess 10, in which the cooling block 11 of the linear regulator 8 is inserted so that it is flowed around directly by the cooling liquid of the water cycle.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The motor vehicle (1) has a water circulation for cooling a combustion engine (2). The water circulation has an electrically operated engine blower (5). The engine blower has a linear automatic controller (8), and is thermally coupled to the water circulation. The linear automatic controller is engaged in thermal contact with a water pipeline (7) of the water circulation. Independent claims are also included for the following: (1) a radiator for water circulation of a motor vehicle (2) a condenser radiator fan module.

Description

Die Erfindung betrifft ein Kraftfahrzeug, insbesondere einen Pkw, mit einem Motorgebläse zum Kühlen eines Verbrennungsmotors. Die Spannung des Motorgebläses wird hierbei von einem gekühlten Linearregler geregelt.The invention relates to a motor vehicle, in particular a passenger car, with an engine fan for cooling an internal combustion engine. The voltage of the motor blower is controlled by a cooled linear regulator.

Der Verbrennungsmotor eines Kraftfahrzeugs wird von einem Wasserkreislauf gekühlt, zu dem ein Motorgebläse gehört. Das Motorgebläse wird bei laufendem Motor entweder elektrisch oder mechanisch angetrieben. Beim Abstellen des Motors gibt es im Regelfall bei entsprechender Motortemperatur einen Nachlauf des dann elektrisch betriebenen Motorgebläses.The internal combustion engine of a motor vehicle is cooled by a water circuit to which a motor fan belongs. The engine fan is driven either electrically or mechanically while the engine is running. When stopping the engine, there is usually a lag of the then electrically operated engine fan with appropriate engine temperature.

Das Motorgebläse besitzt einen Elektromotor, dessen Leistung meist stufenweise regelbar ist. In der Praxis erfolgt die Leistungsregelung mit parallelen oder seriellen Schaltern oder Relais. Bei Fahrzeugen der Oberklasse kennt man auch eine stufenlose Regelung mit Reglern auf Basis der Pulsweitenmodulation, den so genannten PWM-Reglern. Die PWM-Regler funktionieren demgemäß im Motorraum mit seinen häufig recht hohen Temperaturen.The engine fan has an electric motor whose power is usually adjustable in stages. In practice, the power control is done with parallel or serial switches or relays. In luxury vehicles, stepless control is also known with controllers based on pulse width modulation, the so-called PWM controllers. The PWM regulators thus operate in the engine compartment with its often quite high temperatures.

Die US 2003/0058617 A1 beschreibt einen Linearregler für die Drehzahlregelung des Gebläses einer Klimaanlage in einem Pkw. Da die Temperaturen im Fahrzeuginnenraum im Allgemeinen deutlich moderater sind als im Motorraum, genügt es bei der US 2003/0058617 A1 , dass der Linearregler zu seiner Kühlung in den Luftstrom der Klimaanlage platziert wird, und hierbei zum Beispiel auch dicht an den Rotorblättern des Gebläses. Ähnliche Anwendungen des Linearreglers für Klimaanlagen offenbaren auch die US 2005/02642253 sowie die EP 1475884 A2 .The US 2003/0058617 A1 describes a linear controller for the speed control of the blower of an air conditioner in a car. Since the temperatures in the vehicle interior are generally much more moderate than in the engine compartment, it is sufficient for the US 2003/0058617 A1 that the linear regulator for its cooling in the Air flow of the air conditioning is placed, and here, for example, close to the rotor blades of the fan. Similar applications of the linear regulator for air conditioning systems also reveal the US 2005/02642253 as well as the EP 1475884 A2 ,

Es ist eine Aufgabe einer Ausführungsform der Erfindung, ein Kraftfahrzeug mit einem stufenlos regelbaren Motorgebläse bereitzustellen, dessen Regelung eine gute elektromagnetische Verträglichkeit bei geringen Kosten bietet.It is an object of one embodiment of the invention to provide a motor vehicle with a continuously variable engine blower whose control provides good electromagnetic compatibility at a low cost.

Die Lösung dieser Aufgabe erfolgt mit den Merkmalen der unabhängigen Ansprüche. Vorteilhafte Weiterbildungen und weitere Ausführungsformen ergeben sich mit den Merkmalen der abhängigen Ansprüche.The solution of this object is achieved by the features of the independent claims. Advantageous developments and further embodiments will become apparent with the features of the dependent claims.

In einer ersten Ausführungsform wird ein Kraftfahrzeug mit einem Wasserkreislauf zum Kühlen seines Verbrennungsmotors vorgeschlagen. Der Wasserkreislauf umfasst ein elektrisch betriebenes Motorgebläse, dem ein Linearregler zugeordnet ist, d. h., die Spannung des Motorgebläses wird vom Linearregler geregelt. Der Linearregler ist thermisch an den Wasserkreislauf angekoppelt.In a first embodiment, a motor vehicle with a water circuit for cooling its internal combustion engine is proposed. The water cycle includes an electrically powered motor fan associated with a linear regulator, i. h., the voltage of the motor blower is controlled by the linear regulator. The linear regulator is thermally coupled to the water cycle.

Die vorgeschlagene Lösung ermöglicht dank des Linearreglers eine stufenlose Regelung des Motorgebläses. Durch die stufenlose Regelbarkeit ergibt sich zunächst eine minimale Geräuschentwicklung bei minimaler Belastung der Batterie. Gegenüber einer Regelung mit Relais ergibt sich eine größere Zuverlässigkeit durch weniger elektrische Verbindungen, weniger Kabeln und durch das Vorhandensein eines Überhitzungsschutzes weniger Ausfälle bei geringerer Brandgefahr. Auch führt der Einsatz eines Linearreglers anstelle von Relais zu einem etwa um 50 % reduzierten Gewicht bei einem mindestens 80 % geringeren Platzbedarf bei weniger als der Hälfte des Preises. Weiterhin fallen die Montagekosten geringer aus und ist eine Diagnose im Fehlerfall realisierbar.Thanks to the linear regulator, the proposed solution allows stepless regulation of the motor fan. Due to the stepless controllability results first a minimal noise with minimal load on the battery. Compared to a control with relays results in greater reliability through fewer electrical connections, fewer cables and by the presence of overheating protection fewer failures with less risk of fire. Also, the use of a linear regulator instead of relays leads to about 50% reduced weight at least 80% lower Space required at less than half the price. Furthermore, the installation costs are lower and a diagnosis in case of failure can be realized.

Gegenüber PWM-Reglern hat der Linearregler eine deutlich bessere elektromagnetische Verträglichkeit, da Erstere nachteiligerweise mit 20 kHz getaktet sind. Der PWM-Regler erfordert daher umfangreiche Maßnahmen zur Gewährleistung der elektromagnetischen Verträglichkeit, die den PWM-Regler zu einer Komponente macht, die heutzutage ca. dreimal so teuer ist wie ein Linearregler. Die Lösung erlaubt erstmals eine stufenlose Regelung des Motorgebläses bei Klein- und Mittelklassefahrzeugen zu akzeptablen Preisen, erfordert jedoch im Gegenzug einen Eingriff in das komplexe Kühlsystem des Verbrennungsmotors durch Abführen der Verlustleistung des Linearreglers an den Wasserkreislauf.Compared to PWM controllers, the linear regulator has a much better electromagnetic compatibility, since the former are disadvantageously clocked at 20 kHz. The PWM regulator therefore requires extensive measures to ensure electromagnetic compatibility, which makes the PWM regulator a component that today is about three times as expensive as a linear regulator. The solution allows for the first time a stepless control of the engine fan in small and mid-range vehicles at acceptable prices, but in turn requires an intervention in the complex cooling system of the internal combustion engine by dissipating the power loss of the linear regulator to the water cycle.

In einer zweiten Ausführungsform steht der Linearregler in thermischen Kontakt mit einer Wasserleitung des Wasserkreislaufs. Dies ermöglicht es, beim Design des Fahrzeugs eine Position des Linearreglers dicht am Motorgebläse zu wählen, um darüber den Verkabelungsaufwand zu verringern.In a second embodiment, the linear regulator is in thermal contact with a water conduit of the water cycle. This makes it possible to choose a position of the linear regulator close to the engine fan in the design of the vehicle in order to reduce the wiring overhead.

In einer dritten Ausführungsform hat die Wasserleitung eine Ausnehmung, in die der Linearregler oder ein dem Linearregler zugeordneter Kühlblock teilweise eingelassen ist. Die Wasserleitung besteht beispielsweise aus Aluminiumdruckguss, in dessen Ausnehmung der Linearregler oder sein Kühlblock eingelassen und entsprechend abgedichtet wird. Damit wird der Linearregler thermisch an die Kühlflüssigkeit des Wasserkreislaufs angekoppelt, was effizienter ist als eine Kühlung über das Medium Luft.In a third embodiment, the water pipe has a recess into which the linear regulator or a cooling block assigned to the linear regulator is partially embedded. The water pipe consists for example of die-cast aluminum, in the recess of the linear regulator or its cooling block is inserted and sealed accordingly. Thus, the linear regulator is thermally coupled to the cooling liquid of the water cycle, which is more efficient than cooling via the medium air.

In einer weiteren Ausführungsform steht der Linearregler in thermischen Kontakt mit einem Kühler, der dem Wasserkreislauf zugeordnet ist und der Kühlflüssigkeit beinhaltet. Der Linearregler kann hierfür direkt auf dem (Wasser-) Kühler aufliegen.In a further embodiment, the linear regulator stands in thermal contact with a radiator associated with the water cycle and containing the cooling fluid. For this purpose, the linear regulator can rest directly on the (water) cooler.

In einer weiteren Ausführungsform ist der Linearregler im Luftstrom des Motorgebläses angeordnet. Es wird insofern eine Luftkühlung vorgenommen, wobei der Eingriff in den genannten Wasserkühlkreislauf minimal ist.In a further embodiment, the linear regulator is arranged in the air flow of the engine blower. It is insofar made an air cooling, wherein the intervention in said water cooling circuit is minimal.

Ein weiterer Aspekt der Erfindung betrifft einen Wasserkühler, der zur lösbaren Verbindung mit einem Linearregler ausgebildet ist, wobei der Linearregler der Regelung des Motorgebläses dient. Der Wasserkühler kann insofern vorbereitet sein, dass der Linearregler in den Wasserkühler eingelassen oder über eine Clip-Verbindung mit diesem befestigt wird. Hierdurch wird die Montage der Komponenten im Motorraum einfacher, wird Montagezeit eingespart, lassen sich die Komponenten kompakter anordnen und ergibt sich dadurch eine größere Freiheit bei der Entwicklung eines neuen Fahrzeugs.Another aspect of the invention relates to a water cooler, which is designed for releasable connection to a linear regulator, wherein the linear regulator is used to control the motor fan. The water cooler can be prepared in that the linear regulator is inserted into the water cooler or attached via a clip connection with this. As a result, the assembly of the components in the engine compartment is easier, assembly time is saved, the components can be arranged more compact and thus results in greater freedom in the development of a new vehicle.

Eine Ausführungsform des Wasserkühlers weist einen lösbar mit ihm verbundenen Linearregler auf. Bei dieser Einheit Wasserkühler/Linearregler ist das Maß an Vormontage noch größer und die dadurch erzielte Preisersparnis ebenfalls. Der Linearregler kann auf einen der seitlichen Kühlmittelendtanks des Wasserkühlers montiert werden. Wegen der niedrigeren Temperaturen des Kühlmittels wird hierbei bevorzugt der kühlmittelaustrittsseitige Endtank gewählt.An embodiment of the water cooler has a releasably connected to him linear regulator. In this unit water cooler / linear regulator, the degree of pre-assembly is even greater and the resulting price savings also. The linear regulator can be mounted on one of the side coolant tanks of the water cooler. Because of the lower temperatures of the coolant, the coolant outlet side end tank is preferably selected here.

Ein weiterer Aspekt der Erfindung betrifft ein CRFM-Modul mit einem Motorgebläse und einem Wasserkühler wie oben beschrieben. Auch hier ergibt sich durch die vorgenommene Funktionsintegration ein geringerer Platzbedarf für die Komponenten im Motorraum mit einer größeren Freiheit bei der Entwicklung eines neuen Fahrzeugs.Another aspect of the invention relates to a CRFM module having an engine fan and a water cooler as described above. Here, too, results from the made Function integration reduces space requirements for engine compartment components with greater freedom in developing a new vehicle.

Weitere Merkmale und Vorteile der beanspruchten Erfindung werden aus der folgenden detaillierten Beschreibung mit Bezug auf die beigefügten Zeichnungen erkennbar, die nachfolgend als nicht beschränkende Beispiele angegeben sind. Hierbei soll die Benutzung von Bezugszeichen in den Figuren nicht dahingehend verstanden werden, dass die Bezugszeichen den Schutzumfang der beanspruchten Erfindung einschränken sollen. Es zeigen:

Fig. 1
ein Kraftfahrzeug in der Draufsicht;
Fig. 2
einen Wasserkühler in der Seitenansicht,
Fig. 3
eine Wasserleitung für den Wasserkreislauf mit eingelassenem Linearregler.
Other features and advantages of the claimed invention will be apparent from the following detailed description with reference to the accompanying drawings, which are given below by way of non-limiting examples. Here, the use of reference numerals in the figures should not be understood to the effect that the reference numerals are intended to limit the scope of the claimed invention. Show it:
Fig. 1
a motor vehicle in plan view;
Fig. 2
a water cooler in the side view,
Fig. 3
a water pipe for the water cycle with embedded linear regulator.

Bei den Figuren, die allgemein mit gleichen Bezugszeichen gleiche Gegenstände bezeichnen, zeigt Figur 1 ein Kraftfahrzeug 1 in der Draufsicht. Das Kraftfahrzeug 1 besitzt einen Verbrennungsmotor 2, vor dem der Wasserkühler 3 und der Klimakondensator 4 angeordnet sind. Für den Kühlernachlauf nach einem Abstellen des Kraftfahrzeugs 1 ist ein Motorgebläse 5 vorgesehen.In the figures, which generally denote like objects with like reference numerals, shows FIG. 1 a motor vehicle 1 in plan view. The motor vehicle 1 has an internal combustion engine 2, in front of which the water cooler 3 and the air conditioning condenser 4 are arranged. For the radiator after a shutdown of the motor vehicle 1, a motor fan 5 is provided.

Wasserkühler 3, Klimakondensator 4 und Motorgebläse 5 können einzelne Komponenten für die separaten Kühlkreisläufe sein, oder aber Bestandteile eines CRFM-Moduls (englisch: condenser radiator fan module) 6 sein, wie es die gestrichelte Linie andeutet. Das CRFM-Modul 6 kühlt den Verbrennungsmotor 2 auf bekannte Weise über die Wasserleitung 7 mit Kühlflüssigkeit.Water cooler 3, air conditioning condenser 4 and engine fan 5 may be individual components for the separate cooling circuits, or be components of a CRFM module (English: condenser radiator fan module) 6, as indicated by the dashed line. The CRFM module 6 cools the engine 2 in a known manner via the water pipe 7 with cooling liquid.

In die Wasserleitung 7 ist ein Linearregler 8 eingelassen. Der Linearregler 8 ist über eine elektrische Leitung 9 mit dem CRFM-Modul 6 verbunden und regelt dessen Lüfter bzw. Motorgebläse 5 stufenlos. Hierdurch wird mit geringen Kosten und EMV-verträglich das Lüftergeräusch beim Nachlauf und auch die Belastung der Batterie (nicht gezeigt) auf ein Minimum reduziert. Dies gelingt trotz der mitunter hohen Temperaturen im Motorraum mit dem Linearregler 8, der von der Kühlflüssigkeit im Wasserkreislauf ausreichend gekühlt werden kann.In the water pipe 7, a linear regulator 8 is inserted. The linear regulator 8 is connected via an electrical line 9 to the CRFM module 6 and regulates the fan or motor fan 5 continuously. As a result, with low cost and EMC compatible, the fan noise during caster and the load on the battery (not shown) is reduced to a minimum. This succeeds despite the sometimes high temperatures in the engine compartment with the linear regulator 8, which can be sufficiently cooled by the coolant in the water cycle.

Figur 2 zeigt einen Wasserkühler 3, auf einen Endtank 12, 13 ein Linearregler 8 festgeschraubt ist. Da der Kühlmitteleintritt 13 in Figur 2 rechts und der Kühlmittelauslass 14 rechts ist, wird hierzu wegen der niedrigeren Temperaturen der kühlmittelaustrittsseitige Endtank 12 gewählt. Der Wasserkühler besitzt eine auf die Abmessungen des Linearreglers 8 abgestimmte Vertiefung (nicht gezeigt), die den Linearregler teilweise aufnimmt. Der Wasserkühler 3 kann Teil des CRFM-Moduls 6 der Figur 2 sein. FIG. 2 shows a water cooler 3, an end tank 12, 13, a linear regulator 8 is screwed. Since the coolant inlet 13 in FIG. 2 right and the coolant outlet 14 is right, this is chosen because of the lower temperatures of the coolant outlet side end tank 12. The water cooler has a well adapted to the dimensions of the linear regulator 8 depression (not shown), which receives the linear regulator partially. The water cooler 3 may be part of the CRFM module 6 of FIG. 2 be.

Figur 3 zeigt die Wasserleitung 7 für den Wasserkreislauf für den Verbrennungsmotor 2. Diese besitzt eine Ausnehmung 10, in die der Kühlblock 11 des Linearreglers 8 eingelassen ist, damit er direkt von Kühlflüssigkeit des Wasserkreislaufs umströmt wird. FIG. 3 This has a recess 10, in which the cooling block 11 of the linear regulator 8 is inserted so that it is flowed around directly by the cooling liquid of the water cycle.

Obwohl vorstehend eine konkrete Ausführungsform beschrieben wurde, wird der Fachmann erkennen, dass die Beschreibung dieser Ausführungsform nicht zum Zweck hat, die Erfindung in der angegebenen Form zu beschränken. Die Erfindung soll vielmehr alle Modifikationen, Äquivalente und Alternativen umfassen, die in den Schutzumfang der beanspruchten Erfindung fallen.Although a specific embodiment has been described above, it will be apparent to those skilled in the art that the description of this embodiment is not intended to limit the invention to the precise form disclosed. Rather, the invention is intended to embrace all modifications, equivalents and alternatives that fall within the scope of the claimed invention.

B e z u g s z e i c h e n l i s t eC o m p a n c e m e n t i o n s

0101
Kraftfahrzeugmotor vehicle
0202
Verbrennungsmotorinternal combustion engine
0303
Wasserkühlerwater cooler
0404
Klimakondensatorair-conditioning condenser
0505
Motorgebläsemotor fan
0606
CRFM-ModulCRFM module
0707
Wasserleitungwater pipe
0808
Linearreglerlinear regulators
0909
Leitungmanagement
1010
Ausnehmungrecess
1111
Kühlblockcooling block
1212
Endtankfinal tank
1313
KühlmitteleinlassCoolant inlet
1414
Kühlmittelauslasscoolant outlet

Claims (8)

Kraftfahrzeug (1) mit einem Wasserkreislauf (5, 6, 7) zum Kühlen seines Verbrennungsmotors (2), wobei der Wasserkreislauf ein elektrisch betriebenes Motorgebläse (5) umfasst und dem Motorgebläse ein Linearregler (8) zugeordnet ist, der thermisch an den Wasserkreislauf angekoppelt ist.Motor vehicle (1) with a water circuit (5, 6, 7) for cooling its internal combustion engine (2), wherein the water circuit comprises an electrically operated motor fan (5) and the motor fan is associated with a linear regulator (8), which is thermally coupled to the water cycle is. Kraftfahrzeug nach einem der vorherigen Ansprüche, bei dem der Linearregler in thermischen Kontakt mit einer Wasserleitung (7) des Wasserkreislaufs steht.Motor vehicle according to one of the preceding claims, in which the linear regulator is in thermal contact with a water line (7) of the water circuit. Kraftfahrzeug nach einem der vorherigen Ansprüche, bei dem die Wasserleitung eine Ausnehmung (10) hat, in die der Linearregler oder ein dem Linearregler zugeordneter Kühlblock (11) teilweise eingelassen ist.Motor vehicle according to one of the preceding claims, in which the water pipe has a recess (10) into which the linear regulator or a cooling block (11) assigned to the linear regulator is partially embedded. Kraftfahrzeug nach einem der vorherigen Ansprüche, bei dem der Linearregler in thermischen Kontakt mit einem Wasserkühler (3) steht, der dem Wasserkreislauf zugeordnet ist.Motor vehicle according to one of the preceding claims, in which the linear regulator is in thermal contact with a water cooler (3) associated with the water cycle. Kraftfahrzeug nach einem der vorherigen Ansprüche, bei dem der Linearregler im Luftstrom des Motorgebläses (5) angeordnet ist.Motor vehicle according to one of the preceding claims, in which the linear regulator is arranged in the air flow of the engine blower (5). Wasserkühler (3) für einen Wasserkreislauf eines Kraftfahrzeugs, ausgebildet zur lösbaren Verbindung mit einem Linearregler (8) zur Regelung eines Motorgebläses (5).Water cooler (3) for a water circuit of a motor vehicle, designed for releasable connection to a linear regulator (8) for controlling a motor blower (5). Wasserkühler nach Anspruch 6, aufweisend einen lösbar mit ihm verbundenen Linearregler.Water cooler according to claim 6, comprising a releasably connected to him linear regulator. CRFM-Modul (6), umfassend ein Motorgebläse (5) und einen Wasserkühler nach Anspruch 6 oder 7.CRFM module (6) comprising an engine fan (5) and a water cooler according to claim 6 or 7.
EP08009057A 2007-05-18 2008-05-16 Motor vehicle with linearly regulated engine fan Withdrawn EP1992801A3 (en)

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DE102007023407A DE102007023407A1 (en) 2007-05-18 2007-05-18 Motor vehicle with linearly controlled engine fan

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DE102007023407A1 (en) 2008-11-20
CN101307715A (en) 2008-11-19
US20080283000A1 (en) 2008-11-20

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