EP1083309A2 - Kühlkreislauf - Google Patents
Kühlkreislauf Download PDFInfo
- Publication number
- EP1083309A2 EP1083309A2 EP00119100A EP00119100A EP1083309A2 EP 1083309 A2 EP1083309 A2 EP 1083309A2 EP 00119100 A EP00119100 A EP 00119100A EP 00119100 A EP00119100 A EP 00119100A EP 1083309 A2 EP1083309 A2 EP 1083309A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- thermostat
- cooling circuit
- bypass valve
- coolant
- radiator
- 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- Withdrawn
Links
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
- 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
-
- 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
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/06—Retarder
-
- 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
- F01P2060/08—Cabin heater
-
- 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
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
Definitions
- the present invention relates to a cooling circuit for a motor vehicle drive, the motor vehicle engine with at least one radiator via a feed and a discharge line is connected and into the lines Thermostat as well as a bypass valve and a circulation pump are used.
- Cooling circuit for the motor vehicle drive is usually a heat exchanger before or after Motor inserted in the cooling circuit.
- the coolant temperature of the engine is controlled by the thermostat that controls the flow of coolant through the radiator designed as a cooler regulates, stabilizes. With this scheme, the excess Power loss fed to the radiator.
- thermostat is only partially open, which reduces the effect of the radiator.
- the Arrangement of the heat exchanger before or after the engine is taken into account the concerns of the motor vehicle drive, d. H. of the engine, in a very good way, can address concerns of the gearbox insufficiently meet the situation then becomes particularly difficult when in the transmission system a hydrodynamic converter or a retarder is provided is what considerable power losses in the cooling circuit bring in.
- the transmission oil temperatures are at Driven with retarders often only above permissible oil temperatures permanently stable.
- DE 196 25 357 by the applicant is a vehicle transmission with a gear housing and with a cooling device described, which comprises a heat exchanger, the is provided as part of the transmission housing.
- the heat exchanger is not an independent component on the transmission or in the cooling circuit of the vehicle mounted, but as part of the gearbox provided, for example in that channels for oil / water or Oil / air flow directly into the gearbox are cast or incorporated.
- This integrated heat exchanger is particularly suitable for gearboxes with so-called intarders (integrated high-speed retarders) are provided.
- Cooling circuit for a motor vehicle which has a hydrodynamic Has retarder, the coolant of the Internal combustion engine at the same time the working equipment of the retarder is; There is a check valve in the cooling circuit provided between the retarder and the vehicle radiator, in order to achieve a Form cooling circuit and operating pressure variations in the Compensate cooling circuit.
- the retarder When the retarder is not activated flows through the coolant, which at the same time coolant for the internal combustion engine, coolant for the retarder and work equipment is unrestricted for the retarder.
- the rotor shaft of the retarder can move due to the separation through a separating clutch from the output shaft of the Turn the gear freely.
- the object of the present invention is the cooling circuit to simplify and thereby reduce manufacturing costs to lower.
- bypass valve is integrated into the thermostat and that it is the Has shape of openings.
- the invention creates a simple possibility the bypass valve directly into the thermostat integrate by making breakthroughs in the example Work element designed as a stamped sheet metal part of the thermostat.
- the drive motor is one in the cooling circuit Motor vehicle designated, the power loss with Pvmot is called.
- the engine discharge line is included Designated 3 and a thermostat with 4, which on a appropriate temperature heated coolant, in general a mixture of water and antifreeze, a first radiator 6, designed as a cooler, for cooling, from which it is via the feed line 8 with the help of a circulation pump 2 fed back to the engine 1 in a closed circuit becomes.
- a thermostat On a appropriate temperature heated coolant, in general a mixture of water and antifreeze, a first radiator 6, designed as a cooler, for cooling, from which it is via the feed line 8 with the help of a circulation pump 2 fed back to the engine 1 in a closed circuit becomes.
- the thermostat ensures that this is not yet the case sufficiently heated coolant to the engine via the line 7 is fed again without the radiator 6 enforced.
- the gearbox assigned to engine 1 with the associated one hydrodynamic converter is denoted by 14, wherein its power loss is labeled Pvget + Pvwand.
- the retarder assigned to the transmission is designated, which has a power loss Pvretar.
- Gear 14 and retarder 15 are also cooled by a coolant, the heated coolant preferably oil in a line 16 is supplied to a heat exchanger 17 which seen in the flow direction of the coolant in the cooling circuit is inserted directly behind the radiator 6, so that him the coolant with the lowest temperature in the Cooling circuit is supplied.
- the line 16 for returning the cooled oil flow to the transmission and retarder used circulation pump.
- thermostat 4 bypassed with a bypass valve.
- This Bypass valve is designed so that at deep Temperatures the temperature of the gearbox on a sufficient is held high value. To determine this value, the bypass valve is designed in one transient heat model and is then replaced by a Attempt to take off confirmed.
- the temperature of the Transmission 14 with the associated hydrodynamic converter and / or the retarder 15 is set in a wide range become.
- the bypass valve designated 5 is now integrated directly into the thermostat labeled 4.
- the working element 19 of the thermostat 4 which is a function of temperature of the coolant closes the thermostat 4 or opens, provided with a number of openings 20 which even when the thermostat is closed of the coolant flow through the otherwise closed Conduct the thermostat.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Details Of Gearings (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
- Fig. 1
- schematisch einen Kühlkreislauf für einen Kraftfahrzeugantrieb;
- Fig. 2
- das Arbeitselement des Thermostats mit den als Bypass-Ventil dienenden Öffnungen.
- 1
- Motor
- 2
- Umwälzpumpe
- 3
- Abfuhrleitung
- 4
- Thermostat
- 5
- Bypass-Ventil
- 6
- Radiator, Kühler
- 7
- Leitung
- 8
- Zufuhrleitung
- 9
- Zusatzradiator
- 10
- Rückschlagventil
- 11
- Heizung
- 12
- Pumpe
- 13
- Leitung
- 14
- Getriebe
- 15
- Retarder
- 16
- Leitung
- 17
- Wärmetauscher
- 18
- Pumpe
- 19
- Arbeitselement
- 20
- Öffnungen
Claims (3)
- Kühlkreislauf für einen Kraftfahrzeugantrieb, wobei ein Kraftfahrzeugmotor (1) mit mindestens einem Radiator (6) über eine Motor-Zufuhr- (8) und eine Motor-Abfuhrleitung (3) verbunden ist, und wobei in die Abfuhrleitung (3) ein Thermostat (4) und ein Bypass-Ventil (5) sowie in die Zufuhrleitung (8) eine Umwälzpumpe (2) eingesetzt sind, dadurch gekennzeichnet, daß das Bypass-Ventil (5) in Form von Öffnungen (20) in den Thermostat (4) integriert ist.
- Kühlkreislauf nach Anspruch 1, dadurch gekennzeichnet, daß die Öffnungen (20) in einem Arbeitselement (19) des Thermostats (4) angeordnet sind, wobei das Arbeitselement (19) in Abhängigkeit von der Kühlmitteltemperatur den Thermostat (4) öffnet oder schließt.
- Kühlkreislauf nach Anspruch 1, dadurch gekennzeichnet, daß die Öffnungen im Gehäuse des Thermostats (4) angeordnet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1999142726 DE19942726A1 (de) | 1999-09-08 | 1999-09-08 | Kühlkreislauf |
DE19942726 | 1999-09-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1083309A2 true EP1083309A2 (de) | 2001-03-14 |
EP1083309A3 EP1083309A3 (de) | 2003-01-02 |
Family
ID=7921117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00119100A Withdrawn EP1083309A3 (de) | 1999-09-08 | 2000-09-04 | Kühlkreislauf |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1083309A3 (de) |
DE (1) | DE19942726A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014098709A1 (en) * | 2012-12-17 | 2014-06-26 | Scania Cv Ab | Cooling system |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE604382C (de) * | ||||
US1418397A (en) * | 1917-10-08 | 1922-06-06 | Beneke & Kropf Mfg Company | Circulating system for internal-combustion engines |
US2408269A (en) * | 1942-09-01 | 1946-09-24 | Vapor Car Heating Co Inc | Thermostatic controller for water temperature |
DE3112202A1 (de) * | 1981-03-27 | 1982-10-14 | Bayerische Motoren Werke Ag | Kuehlvorrichtung fuer fluessigkeitsgekuehlte brennkraftmaschinen |
JPH08240118A (ja) * | 1995-02-28 | 1996-09-17 | Aichi Mach Ind Co Ltd | エンジン冷却水循環システムにおける感温バルブ装置 |
DE19603184A1 (de) * | 1996-01-30 | 1997-07-31 | Zahnradfabrik Friedrichshafen | Retarder-Kühlkreislauf |
DE19625357A1 (de) * | 1996-06-25 | 1998-01-02 | Zahnradfabrik Friedrichshafen | Getriebe-integrierter Wärmetauscher |
DE19646933A1 (de) * | 1996-11-13 | 1998-05-14 | Bayerische Motoren Werke Ag | Vorrichtung für einen thermostatgeregelten, pumpengesteuerten Kühlmittelumlauf einer Brennkraftmaschine |
GB2321957A (en) * | 1997-02-04 | 1998-08-12 | Perkins Ltd | Cooling I.C. engines |
-
1999
- 1999-09-08 DE DE1999142726 patent/DE19942726A1/de not_active Withdrawn
-
2000
- 2000-09-04 EP EP00119100A patent/EP1083309A3/de not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE604382C (de) * | ||||
US1418397A (en) * | 1917-10-08 | 1922-06-06 | Beneke & Kropf Mfg Company | Circulating system for internal-combustion engines |
US2408269A (en) * | 1942-09-01 | 1946-09-24 | Vapor Car Heating Co Inc | Thermostatic controller for water temperature |
DE3112202A1 (de) * | 1981-03-27 | 1982-10-14 | Bayerische Motoren Werke Ag | Kuehlvorrichtung fuer fluessigkeitsgekuehlte brennkraftmaschinen |
JPH08240118A (ja) * | 1995-02-28 | 1996-09-17 | Aichi Mach Ind Co Ltd | エンジン冷却水循環システムにおける感温バルブ装置 |
DE19603184A1 (de) * | 1996-01-30 | 1997-07-31 | Zahnradfabrik Friedrichshafen | Retarder-Kühlkreislauf |
DE19625357A1 (de) * | 1996-06-25 | 1998-01-02 | Zahnradfabrik Friedrichshafen | Getriebe-integrierter Wärmetauscher |
DE19646933A1 (de) * | 1996-11-13 | 1998-05-14 | Bayerische Motoren Werke Ag | Vorrichtung für einen thermostatgeregelten, pumpengesteuerten Kühlmittelumlauf einer Brennkraftmaschine |
GB2321957A (en) * | 1997-02-04 | 1998-08-12 | Perkins Ltd | Cooling I.C. engines |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 01, 31. Januar 1997 (1997-01-31) & JP 08 240118 A (AICHI MACH IND CO LTD), 17. September 1996 (1996-09-17) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014098709A1 (en) * | 2012-12-17 | 2014-06-26 | Scania Cv Ab | Cooling system |
Also Published As
Publication number | Publication date |
---|---|
EP1083309A3 (de) | 2003-01-02 |
DE19942726A1 (de) | 2001-03-29 |
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Effective date: 20030401 |