EP1220976B1 - Oszillierender kühlwasserkreislauf - Google Patents
Oszillierender kühlwasserkreislauf Download PDFInfo
- Publication number
- EP1220976B1 EP1220976B1 EP00972722A EP00972722A EP1220976B1 EP 1220976 B1 EP1220976 B1 EP 1220976B1 EP 00972722 A EP00972722 A EP 00972722A EP 00972722 A EP00972722 A EP 00972722A EP 1220976 B1 EP1220976 B1 EP 1220976B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling medium
- unit
- component
- cooling
- heat generating
- 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.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims description 16
- 239000002826 coolant Substances 0.000 claims description 80
- 238000000034 method Methods 0.000 claims description 13
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 238000005338 heat storage Methods 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000002441 reversible effect Effects 0.000 claims description 2
- 230000002123 temporal effect Effects 0.000 claims 5
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000000498 cooling water Substances 0.000 description 11
- 238000009826 distribution Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000013021 overheating Methods 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
-
- 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
- F01P7/164—Controlling of coolant flow the coolant being liquid by thermostatic control by varying pump speed
-
- 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
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
- F01P2005/125—Driving auxiliary pumps electrically
-
- 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
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
-
- 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
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
- F01P2011/205—Indicating devices; Other safety devices using heat-accumulators
-
- 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
- F01P2025/46—Engine parts temperature
-
- 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
- F01P2037/00—Controlling
- F01P2037/02—Controlling starting
-
- 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
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/04—Lubricant cooler
- F01P2060/045—Lubricant cooler for transmissions
-
- 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 present invention relates to a device with a heat generating unit and with a cooling system, such as internal combustion engines, Fuel cells and / or transmissions.
- a cooling system for example one Cooling water circuit in which the cooling medium in the circuit through the device for removing the there resulting heat is conducted.
- a water pump the water pump with the Starting the engine and pumping up Start on cooling water by the engine.
- DE 38 13 217 discloses C2 a temperature-controlled electromagnetic Diaphragm water pump, which only at a cylinder cooling water temperature of 80 ° C put into operation becomes. This avoids the during cold start Cooling by means of the cooling water circuit.
- a disadvantage of this method is that heat generating units, such as internal combustion engines, even during the warm-up phase an uneven heat distribution and so-called "hot spots", for example in the area of Have exhaust valves in which the engine is extremely is heated quickly.
- a shutdown of the cooling circuit here leads to a very local overheating of the engine and possibly to destroy the exhaust valves.
- a complete shutdown of the water pump, as disclosed in DE 38 13 217 C2 is therefore not meaningful.
- the object of the present invention is therefore a Device with a heat generating unit for To make available one of the respective operating status adapted to the device cooling the Unit is effected without local overheating to accept.
- the device has a heat generating unit and a cooling system with a cooling medium that flows in or along the unit, for example by an engine block.
- the flow rate of the cooling medium in or on the unit in size and / or direction can be modulated, the flow rate can be regulated twice.
- a first component the effective flow rate on average over time, which is a coolant transport through or along the heat-generating Unit and thus heat dissipation, corresponds, adjustable.
- it is possible to switch the cooling water circuit on or off, i.e. with a first component 0 or operate a certain value other than 0 or adjusted the cooling water circuit between these values the temperature and heat generation of the unit, to regulate.
- the flow rate of the cooling medium can continue with different amplitude of the second component can be modulated or undulated.
- the modulation amplitude of the second components for a short time regardless of the size of the first component be increased to make the "hot spots" more effective cool and to effectively equalize the To achieve heat distribution in the unit.
- adjustable electric pumps which advantageously switchable from forward to reverse are.
- adjustable mechanical pumps with only one Pumping direction can be used provided they a corresponding mechanical switch, for example a rotary valve, is connected downstream.
- a corresponding mechanical switch for example a rotary valve
- Controlling the modulation of the second component can be via a time program, for example for the Cold start operation, via a temperature sensor on any Location, for example in the cylinder head gasket, in their surroundings the "hot spots" Internal combustion engines are controlled.
- this device to be further trained in that a latent heat storage is provided over the front or a certain percentage during the cold start phase the cooling medium is heated and then possibly oscillating, in the heat generating Unit is transported.
- the latent Heat stores not the cooling medium of the whole Cooling water circuit, but only one Fraction of the cooling medium to be heated. This makes possible a higher efficiency of the latent heat storage.
- the heat accumulator can be arranged in this way be that the cooling medium from the unit into the heat accumulator and headed back to the unit becomes.
- the coolant flows from the coolant pump 2 via the feed lines 12 to the rotary valve 3 and there via an inlet 22, a passage 15 and an outlet 23 to a supply line 11.
- the supply line 11 is connected to the heat generating unit 1.
- the coolant enters the rotary valve 3 from the heat-generating unit 1 via a discharge line 10, an inlet 20 and flows through the rotary valve 3 via a connecting line 20 to its outlet 21, from where it flows back to the coolant pump 2 via a discharge line 13. If the coolant pump 2 is now put into operation, there is a constant coolant flow through the heat-generating unit 1.
- the volume of the coolant hatched in FIG. 1 is oscillated back and forth since the rotary valve 3 the flow direction in lines 10 and 11 periodically reverses. Depending on the speed of the rotary valve, the oscillation is faster or slower. If the individual positions of the rotary valve continue to be maintained for different lengths of time, an average flow rate can occur v (first component of the flow rate) in a direction in which an oscillating movement (second component of the flow rate) of the coolant is modulated.
- FIG. 2 shows a further device in the corresponding Components with corresponding reference numerals are provided as in Figure 1 and their description is therefore omitted.
- a latent heat store 30 is present in FIG. 2, the coolant from the heat generating unit 1 is supplied via a coolant supply 31, the the latent heat storage via a coolant drain 32 leaves again and to the heat generating Unit 1 is returned.
- Figure 3 shows a further device, wherein in Figure 3 several heat generating units 1.1 and 1.2 are provided. Each of these units is unique Rotary valve 3.1 or 3.2 for independent control the modulation (first component) and flow velocity (second component) of the cooling medium for assigned to each of the heat generating units 1.1 and 1.2.
- the function of the individual components in Figure 3 corresponds to the function of the components in Figure 1, so that they have corresponding reference numerals are designated and for the description of the function reference is made to the description of FIG. 1.
- FIG. 4 shows various forms of periodic change in speed of the coolant in or on the heat-generating unit, as can be generated for example with the device according to FIG. 1.
- FIG. 4A shows a smooth back and forth movement of the coolant, the average speed v of the coolant, ie its first component is zero. This operation is carried out, for example, at the beginning of the cold start phase. The speed of the coolant is constant in one valve position and is reversed when the valve is turned to the next valve position. In this operation, almost all of the heat of the heat-generating unit 1 remains within this unit 1, but an equal heat distribution is brought about in the unit and so-called "hot spots" are cooled.
- FIG. 4B shows an asymmetrical speed distribution of the coolant, which results in an average speed v , that is, the first component of the dilution rate of the coolant is greater than 0.
- the rotary valve is left in one of the positions for a longer time than in the other position, so that the flow rate is maintained longer in one direction than in the other. This results in a certain heat removal from the heat generating unit 1, but due to the periodic fluctuations in the flow rate, ie its second component, good cooling of the "hot spots" is achieved.
- Such operation can occur, for example, in the transition from the cold start phase of an internal combustion engine to the continuous operation phase.
- Figure 4C shows such a transition of heat generating unit 1 from the cold start phase to Reaching the operating temperature.
- This example was made over time also resized the first component, where the second periodic component of flow rate was regulated independently of this.
- FIG. 4D shows the control of the coolant flow in FIG another example.
- the corresponding critical temperatures of the "hot spots "or the heat generating unit 1, for example an internal combustion engine, for example through temperature sensors in the cylinder head gasket can be arranged, detected.
- This data is then used to control the rotary valves and thus used to control the coolant flow.
- Figure 5 shows various forms of speed modulation (ie its direction and amount) of the coolant in or on the heat-generating unit, as can be generated for example by means of an electrically controllable pump instead of a mechanical pump with a rotary valve.
- Figure 5A shows a smooth oscillating reciprocation of the coolant, the mean speed v of the coolant is zero. This operation is carried out, for example, at the beginning of the cold start phase in order to leave the heat generated in the heat-generating unit 1 within the unit 1, but to bring about a uniform heat distribution in the unit and to effectively cool so-called "hot spots".
- FIG. 5B shows the operation during the normal operating state with the operating temperature, with here an even flow of the coolant v > 0, ie a modulation, ie a second component or part of the flow rate, is applied to the first component or part of the flow rate.
- FIG. 5C shows the modulation of a uniform coolant flow v > 0 with different amplitudes.
- Such an amplitude modulation is useful, for example, when the "hot spots" have to be cooled more by increased heat generation in the engine, for example with increased power, without actually requiring an increased flow of coolant through the heat-generating unit.
- FIG. 5D describes the transition of a heat-generating unit, for example an internal combustion engine, from a cold start to when the operating temperature is reached.
- the operating temperature is reached, there is an effective mean coolant flow, ie v > 0 which in turn, however, has a slight modulation, ie a second component for equalizing the temperatures within the engine block.
- Figure 5E shows the modulation of the coolant flow with a temperature-dependent control.
- the mean directional flow v of the cooling medium, but modulation is applied to this flow to cool the "hot spots". If the temperature T exceeds the limit temperature T G , the flow rate becomes v of the coolant is increased to dissipate a maximum of heat generated and the modulation is omitted.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Description
- Figur 1
- eine Wärme erzeugende Vorrichtung;
- Figur 2
- eine weitere Wärme erzeugende Vorrichtung mit latentem Wärmespeicher;
- Figur 3
- Wärme erzeugende Vorrichtungen;
- Figur 4
- verschiedene Modulationsweisen für die Fließgeschwindigkeit des Kühlmediums;
- Figur 5
- verschiedene Modulationsweisen für die Flußgeschwindigkeit des Kühlmediums.
Figur 4A zeigt dabei eine gleichmäßige Hin- und Herbewegung des Kühlmittels, wobei die mittlere Geschwindigkeit
Claims (18)
- Vorrichtung mit einer Wärme erzeugenden Einheit (1) mit einer erhöhten Betriebstemperatur in einer Betriebsphase, und einem Kühlsystem (2, 10, 11, 12, 13) mit einem Kühlmedium, das in oder an der Einheit (1) entlangströmt,
dadurch gekennzeichnet, daß
einer ersten Komponente der Fließgeschwindigkeit des Kühlmittels, die dem zeitlichen Mittel des Transports von Kühlmittel durch oder entlang der Einheit (1) entspricht, eine zweite, in ihrer Größe und/oder Richtung periodisch schwankende Komponente der Fließgeschwindigkeit überlagerbar ist, die im zeitlichen Mittel keinen Transport von Kühlmittel durch oder entlang der Einheit bewirkt, wobei die zweite Komponente in Richtung und/oder Größe unabhängig von Richtung oder Größe der ersten Komponente steuerbar ist. - Vorrichtung nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, daß die erste Komponente einen Wert von 0 m/s aufweist, zwischen 0 m/s und einem vorbestimmten Wert veränderbar ist oder einen bestimmten Wert ungleich 0 aufweist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Flußgeschwindigkeit durch eine in der Pumprichtung umschaltbare Pumpe und/oder eine Umschaltvorrichtung für die Flußrichtung modulierbar ist.
- Vorrichtung nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, daß die Umschaltvorrichtung ein Drehventil ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Flußrichtung des Kühlmittels abwechselnd umkehrbar und/oder die Flußgeschwindigkeit des Kühlmittels abwechselnd verringerbar und erhöhbar ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie einen latenten Wärmespeicher aufweist zur Erwärmung einer bestimmten Menge an Kühlmedium vor und/oder während der Erwärmung der Einheit auf die Betriebstemperatur.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß an oder in der Wärme erzeugenden Einheit ein Temperatursensor angeordnet ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Wärme erzeugende Einheit eine Verbrennungskraftmaschine ist.
- Vorrichtung nach dem vorhergehenden Anspruch, dadurch gekennzeichnet daß die Verbrennungskraftmaschine einen Zylinderblock, einen Zylinderkopf und eine zwischen Zylinderblock und Zylinderkopf angeordnete Zylinderkopfdichtung aufweist.
- Vorrichtung nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, daß ein Temperatursensor in oder an der Zylinderkopfdichtung angeordnet ist.
- Verfahren zur Kühlung einer Wärme erzeugenden Einheit, die in einer Betriebsphase eine erhöhte Betriebstemperatur aufweist,
wobei zur Kühlung ein Kühlmedium in oder an der Einheit entlangströmt,
dadurch gekennzeichnet, daß
die Flußgeschwindigkeit derart geregelt wird, daß sie eine erste Komponente, die dem zeitlichen Mittel des Transports von Kühlmittel durch oder entlang der Einheit (1) entspricht, sowie eine zweite in ihrer Größe und/oder Richtung periodisch schwankende Komponente aufweist, die im zeitlichen Mittel keinen Transport von Kühlmittel durch oder entlang der Einheit (1) bewirkt, und wobei die zweite Komponente in Größe und Richtung unabhängig von Größe und Richtung der ersten Komponente geregelt wird. - Verfahren nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, daß die Einheit während einer Kaltstartphase auf die Betriebstemperatur erwärmt wird, wobei zumindest während eines Teils der Kaltstartphase die erste Komponente der Flußgeschwindigkeit auf 0 m/s geregelt wird.
- Verfahren nach einem der beiden vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zumindest während eines Teils der Kaltstartphase die Flußgeschwindigkeit derart abwechselnd umgekehrt wird, daß der an oder in der Einheit (1) entlangfließende Kühlmittelanteil im zeitlichen Mittel stationär ist.
- Verfahren nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, daß vor oder während der Kaltstartphase eine vorbestimmte Menge an Kühlmedium aufgewärmt und anschließend in oder an der Einheit entlangströmt.
- Verfahren nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, daß die vorbestimmte Menge an Kühlmedium durch eine getrennte Heizvorrichtung, beispielsweise einen Latenzwärmespeicher, aufgewärmt wird.
- Verfahren nach einem der Ansprüche 11 bis 15, dadurch gekennzeichnet, daß in der Betriebsphase zumindest zeitweise die Flußgeschwindigkeit abwechselnd verringert und erhöht wird und/oder die Flußrichtung abwechselnd umgekehrt wird.
- Verfahren nach einem der Ansprüche 11 bis 16, dadurch gekennzeichnet, daß die Periode und/oder die Amplitude der zweiten Komponente beispielsweise durch ein Zeitprogramm und/oder einen Temperatursensor in/an der Einheit und/oder in/an dem Kühlmedium, gesteuert wird.
- Verwendung einer Vorrichtung nach einem der Ansprüche 1 bis 10 und/oder eines Verfahrens nach einem der Ansprüche 11 bis 17 während der Kaltstartphase und/oder während der Betriebsphase zur Kühlung einer Verbrennungskraftmaschine, einer Brennstoffzelle und/oder einer Getriebes als Wärme erzeugende Vorrichtung.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19948890 | 1999-10-11 | ||
DE19948890A DE19948890A1 (de) | 1999-10-11 | 1999-10-11 | Oszillierender Kühlwasserkeislauf |
PCT/EP2000/009966 WO2001027448A1 (de) | 1999-10-11 | 2000-10-10 | Oszillierender kühlwasserkreislauf |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1220976A1 EP1220976A1 (de) | 2002-07-10 |
EP1220976B1 true EP1220976B1 (de) | 2004-08-11 |
Family
ID=7925203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00972722A Expired - Lifetime EP1220976B1 (de) | 1999-10-11 | 2000-10-10 | Oszillierender kühlwasserkreislauf |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1220976B1 (de) |
DE (2) | DE19948890A1 (de) |
WO (1) | WO2001027448A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6532911B2 (en) * | 2000-07-26 | 2003-03-18 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine having heat accumulator, control of heat supply system and control method of internal combustion engine |
DE10211060B4 (de) * | 2002-03-13 | 2005-03-17 | Siemens Ag | Verfahren und Vorrichtung zur Regelung des Kühlmittelvolumenstromes in einer Brennkraftmaschine |
DE10226928A1 (de) * | 2002-06-17 | 2004-01-08 | Siemens Ag | Verfahren zum Betrieb einer flüssigkeitsgekühlten Brennkraftmaschine |
KR100589140B1 (ko) * | 2003-09-20 | 2006-06-12 | 현대자동차주식회사 | 차량의 냉각시스템 제어방법 |
DE102004039417A1 (de) * | 2004-08-13 | 2006-02-23 | Daimlerchrysler Ag | Brennstoffzellensystem und Verfahren zum Betreiben eines Brennstoffzellensystems |
DE102007017172A1 (de) * | 2007-04-12 | 2008-10-16 | Bayerische Motoren Werke Aktiengesellschaft | Kühlsystem für eine kühlbedürftige Einheit |
DE102016012629A1 (de) * | 2016-10-21 | 2018-04-26 | Man Truck & Bus Ag | Kühlkreislauf für ein Kraftfahrzeug |
DE102020213093A1 (de) | 2020-10-16 | 2022-04-21 | Avl Software And Functions Gmbh | Kühlvorrichtung für ein Kühlen von wenigstens zwei elektrischen Komponenten eines Elektroantriebs eines Fahrzeugs |
DE102020127420A1 (de) | 2020-10-19 | 2022-04-21 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Betreiben eines Kühlkreislaufs sowie Kraftfahrzeug |
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DE136289C (de) * | ||||
DE2656361A1 (de) * | 1976-12-13 | 1978-06-15 | Skf Kugellagerfabriken Gmbh | Vorrichtung zur kuehlung von verbrennungskraftmaschinen |
DD216984A1 (de) * | 1983-07-26 | 1985-01-02 | Seefahrt Inghochschule | Verfahren und einrichtung zur reduzierung der thermischen motorbauteilbelastung |
DE8805218U1 (de) * | 1988-04-20 | 1988-08-25 | Meinhard, Wolfgang, 2308 Preetz | Temperaturabhängige, elektromagnetisch gesteuerte Membranwasserpumpe für Kraftfahrzeuge |
DE3813217A1 (de) | 1988-04-20 | 1989-11-02 | Wolfgang Meinhard | Temperaturabhaengige, elektromagnetisch gesteuerte membranwasserpumpe fuer kraftfahrzeuge |
GB8922399D0 (en) * | 1989-10-04 | 1989-11-22 | Lotus Group Plc | Cooling engines |
DE4207403A1 (de) * | 1992-03-09 | 1993-09-30 | Goetze Ag | Zylinderkopfdichtung für Verbrennungskraftmaschinen |
DE4431351A1 (de) * | 1994-09-02 | 1996-03-07 | Bayerische Motoren Werke Ag | Kraftfahrzeug mit einer Brennkraftmaschine, einem Getriebe sowie einem Wärmespeicher |
JPH08338245A (ja) * | 1995-06-08 | 1996-12-24 | Hino Motors Ltd | エンジン・クーリング・システム |
JP3555269B2 (ja) * | 1995-08-31 | 2004-08-18 | 株式会社デンソー | 車両用冷却水温度制御システム |
DE19540591C2 (de) * | 1995-10-31 | 1999-05-20 | Behr Gmbh & Co | Verfahren zur Regelung der Volumenstromverteilung in einem Kühlmittelkreislauf für Kraftfahrzeuge mit Motor und Vorrichtung zur Durchführung des Verfahrens |
DE19601319A1 (de) * | 1996-01-16 | 1997-07-17 | Wilo Gmbh | Kühler eines Kraftfahrzeugmotors |
DE19809123B4 (de) * | 1998-03-04 | 2005-12-01 | Daimlerchrysler Ag | Wasserpumpe für den Kühlkreislauf einer Brennkraftmaschine |
DE19925986A1 (de) * | 1999-06-08 | 2000-12-14 | Bosch Gmbh Robert | Kühlkreislauf zum Kühlen eines Verbrennungsmotors |
-
1999
- 1999-10-11 DE DE19948890A patent/DE19948890A1/de not_active Ceased
-
2000
- 2000-10-10 EP EP00972722A patent/EP1220976B1/de not_active Expired - Lifetime
- 2000-10-10 DE DE50007401T patent/DE50007401D1/de not_active Expired - Fee Related
- 2000-10-10 WO PCT/EP2000/009966 patent/WO2001027448A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
WO2001027448A1 (de) | 2001-04-19 |
DE19948890A1 (de) | 2001-04-19 |
EP1220976A1 (de) | 2002-07-10 |
DE50007401D1 (de) | 2004-09-16 |
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