EP0593942A1 - Accumulateur de chaleur pour le circuit de refroidissement de moteurs à combustion interne refroidis par un liquide - Google Patents
Accumulateur de chaleur pour le circuit de refroidissement de moteurs à combustion interne refroidis par un liquide Download PDFInfo
- Publication number
- EP0593942A1 EP0593942A1 EP93115519A EP93115519A EP0593942A1 EP 0593942 A1 EP0593942 A1 EP 0593942A1 EP 93115519 A EP93115519 A EP 93115519A EP 93115519 A EP93115519 A EP 93115519A EP 0593942 A1 EP0593942 A1 EP 0593942A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat
- cooling circuit
- liquid
- cooling
- coolant
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
- F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
- F02N19/10—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of engine coolants
-
- 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
- F01P11/20—Indicating devices; Other safety devices concerning atmospheric freezing conditions, e.g. automatically draining or heating during frosty weather
-
- 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
-
- 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
- F01P9/00—Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00
-
- 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
Definitions
- the invention relates to a cooling circuit for liquid-cooled internal combustion engines according to the preamble of claim 1, as is common in vehicle construction.
- the capacity of the air / liquid heat exchanger and the amount of coolant present must be designed so large that sufficient heat is dissipated from the engine block even at peak load, for example at low driving speeds on steep sections in full load operation at high air temperatures, and this does not exceed its maximum operating temperature.
- the amount of coolant and air / liquid heat exchanger have to be oversized for the needs of normal operation. They therefore take up a larger installation space and have a larger mass than a cooling circuit designed for normal operation.
- latent heat stores in which a container is separated from the coolant in a thermally insulated container through which the coolant flows but is heated with it in heat exchange storage medium during operation of the vehicle.
- the energy stored in the storage medium is returned to the cooling circuit when the vehicle is cold started.
- storage media are preferred which have a phase transition in a temperature range below the normal operating temperature of the cooling liquid and whose specific heat of evaporation or melting is as large as possible.
- the object of the invention is to improve the generic cooling circuit in such a way that the dimensioning of the amount of coolant and the air / liquid heat exchanger can be matched to the needs of normal operation and yet an adequate dissipation of the engine heat is guaranteed at peak loads.
- a heat buffer is arranged in the cooling circuit and contains a heat storage medium which is in heat exchange with the cooling liquid of the cooling circuit.
- the heat storage medium is selected so that it is subject to a phase change in the upper operating temperature range of the coolant, but at most 10 ° C. above the maximum permissible operating temperature. If the operating temperature of the coolant exceeds the temperature of the phase transition, the heat storage medium extracts a large amount of energy from the coolant due to the phase transition taking place and prevents further heating of the coolant until the phase transition is complete. In order to ensure a high energy consumption, preference will be given to those heat media which have a large specific heat of fusion or evaporation.
- the phase transition temperature of the heat storage medium must not be above the maximum permissible operating temperature of the coolant, but must be in the range of the normal operating temperature of the coolant. In order to prevent premature cooling of the latent heat storage, it is well thermally insulated from the outside.
- the thermal buffer should have good thermal conductivity in order to release part of the energy absorbed into the ambient air and thus finally remove it from the cooling circuit.
- the heat buffer is also regenerated via the cooling circuit as soon as its capacity is no longer fully used by the internal combustion engine.
- FIG. 1 shows a perspective view of a heat accumulator.
- the heat storage medium 21 is housed in chambers 24.
- the cooling liquid 2 flows around the chambers.
- the shape of the chambers and the heat storage 20 is designed so that the flow rate of the cooling liquid 2 in the heat storage 20 is low and that the largest possible contact area between the chambers 24 and the Coolant 2 exists.
- cooling fins 23 are arranged on the outside of the heat accumulator.
- heat storage medium For example, sodium can be used, whose melting point of 97.8 ° C is close to the boiling point of the water usually used as a cooling liquid and whose specific heat of fusion with 113 kJ / kg ensures high energy consumption. Other heat storage media are also possible.
- the quotient of specific melting or evaporation heat and the specific weight should be used as a selection criterion for the suitable heat storage medium, since this is a measure of the required mass of the storage medium.
- FIGS 2a) to 2d) show different schematic representations of a cooling circuit, which are common with each different arrangement of the heat accumulator 20 in the cooling circuit.
- the underlying cooling circuit is common to all four figures.
- the water is pumped by the circulation pump 6 into the engine block 1, in which it is heated.
- the coolant temperature is measured in the thermostat 7 and possibly the coolant throughput is regulated.
- the coolant is fed to the air / liquid heat exchanger 3 - hereinafter referred to as cooler 3 - via the feed 4.
- the coolant is returned to the circulation pump 6 via the return 5.
- the coupling of the heat accumulator 20 to the cooling circuit takes place via a control valve 23.
- FIGS. 2a and 2b show two examples of a serial arrangement of the heat buffer 20 with respect to the cooler 3.
- the heat buffer 20 is arranged as a branch from the return 5 via the control valve 23.
- the coolant coming from the cooler is alternatively fed directly to the circulation pump 6 fed or first supplied to the heat buffer 20 in order to then also get to the circulation pump 6.
- This arrangement of the heat buffer 20 in the cooling circuit is particularly useful when the phase transition temperature of the heat storage medium is below the maximum permissible operating temperature of the coolant temperature.
- FIG. 2 b shows an arrangement in which the cooling liquid, again controlled by a control valve 23, before it reaches the cooler 3, can be fed to the heat accumulator 20.
- the arrangement shown in FIG. 2c differs from FIG. 2b only in that the cooling liquid passed through the heat buffer 20 is no longer fed to the cooler 3, but is instead fed directly to the circulation pump 6.
- These two arrangements of the heat buffer are particularly useful when the phase transition temperature of the heat storage medium is above or near the maximum permissible operating temperature of the coolant.
- FIG. 2d shows an alternative arrangement in which the heat buffer 20, again controllable via the control valve 23, is integrated in the coolant flow of the engine block. This arrangement is also particularly useful if the phase transition temperature of the heat storage medium is above or close to the maximum operating temperature of the cooling liquid.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4235883 | 1992-10-23 | ||
DE4235883A DE4235883C2 (de) | 1992-10-23 | 1992-10-23 | Kühlkreislauf von flüssigkeitsgekühlten Brennkraftmaschinen mit Wärmepuffer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0593942A1 true EP0593942A1 (fr) | 1994-04-27 |
EP0593942B1 EP0593942B1 (fr) | 1996-07-24 |
Family
ID=6471226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93115519A Expired - Lifetime EP0593942B1 (fr) | 1992-10-23 | 1993-09-25 | Accumulateur de chaleur pour le circuit de refroidissement de moteurs à combustion interne refroidis par un liquide |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0593942B1 (fr) |
AT (1) | ATE140765T1 (fr) |
DE (1) | DE4235883C2 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19615509A1 (de) * | 1996-04-19 | 1997-10-23 | Wilo Gmbh | Heizung oder Klimaanlage eines Kraftfahrzeugs |
FR2864148A1 (fr) * | 2003-12-23 | 2005-06-24 | Peugeot Citroen Automobiles Sa | Dispositif de regulation thermique de fluides circulant dans un vehicule a moteur thermique et procede mis en oeuvre par ce dispositif |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19500607C2 (de) * | 1995-01-11 | 2000-02-17 | Richard Ambros | Anordnung eines Latentwärmespeichers für eine Brennkraftmaschine |
DE19521292A1 (de) * | 1995-06-10 | 1996-12-12 | Opel Adam Ag | Kreislauf für eine Wärmeübertragungsflüssigkeit einer mit einem Wärmespeicher zusammenarbeitenden Brennkraftmaschine |
DE19654495A1 (de) * | 1996-12-18 | 1998-06-25 | Burkhard Dipl Ing Schmidt | Wärmespeicher für Kühlwasser im Kfz |
DE19700674C2 (de) * | 1997-01-10 | 1999-03-11 | Richard Ambros | Sicherheitskraftfahrzeug mit Latentwärmespeicher und Standheizung |
DE102006010247B4 (de) | 2006-03-02 | 2019-12-19 | Man Truck & Bus Se | Antriebseinheit mit Wärmerückgewinnung |
DE102010003688A1 (de) | 2010-04-07 | 2011-10-13 | Dbk David + Baader Gmbh | Kühlmittelkreislauf, Verfahren zum Steuern eines Kühlmittelkreislaufs und Latentwärmespeicher |
DE102011007186A1 (de) * | 2011-04-12 | 2012-10-18 | J. Eberspächer GmbH & Co. KG | Innenraum-Heizeinrichtung für ein Fahrzeug |
DE102011050199A1 (de) * | 2011-05-06 | 2012-11-08 | Dbk David + Baader Gmbh | Kühlmittelkreislauf |
DE102011050200A1 (de) | 2011-05-06 | 2012-11-08 | Dbk David + Baader Gmbh | Wärmespeicher |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1805862A1 (de) * | 1967-10-30 | 1969-07-10 | Wistisen Preben Christian | Vorrichtung an Brennkraftmaschinen zur Vermeidung von Kaltstart |
DE3720319C2 (fr) * | 1987-06-19 | 1989-10-05 | Lothar Dipl.-Ing. 7883 Goerwihl De Griesser |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1576746A1 (de) * | 1967-08-18 | 1970-11-05 | Lokomotivbau Elektrotech | Abgeschlossene Fluessigkeitskuehleinrichtung fuer Brennkraftmaschinen |
-
1992
- 1992-10-23 DE DE4235883A patent/DE4235883C2/de not_active Expired - Fee Related
-
1993
- 1993-09-25 AT AT93115519T patent/ATE140765T1/de not_active IP Right Cessation
- 1993-09-25 EP EP93115519A patent/EP0593942B1/fr not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1805862A1 (de) * | 1967-10-30 | 1969-07-10 | Wistisen Preben Christian | Vorrichtung an Brennkraftmaschinen zur Vermeidung von Kaltstart |
DE3720319C2 (fr) * | 1987-06-19 | 1989-10-05 | Lothar Dipl.-Ing. 7883 Goerwihl De Griesser |
Non-Patent Citations (1)
Title |
---|
SOVIET INVENTIONS ILLUSTRATED, Q Sektion, Woche 8526, 7. August 1985 DERWENT PUBLICATIONS LTD., London, Q 51; & SU,A, 1129392 (MOSCOW HIKHACHEV CAR WKS) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19615509A1 (de) * | 1996-04-19 | 1997-10-23 | Wilo Gmbh | Heizung oder Klimaanlage eines Kraftfahrzeugs |
DE19615509B4 (de) * | 1996-04-19 | 2006-03-23 | Pierburg Gmbh | Heizung oder Klimaanlage eines Kraftfahrzeugs |
FR2864148A1 (fr) * | 2003-12-23 | 2005-06-24 | Peugeot Citroen Automobiles Sa | Dispositif de regulation thermique de fluides circulant dans un vehicule a moteur thermique et procede mis en oeuvre par ce dispositif |
WO2005064133A1 (fr) * | 2003-12-23 | 2005-07-14 | Peugeot Citroen Automobiles S.A. | Dispositif de regulation thermique de fluides circulant dans un vehicule a moteur thermique et procede mis en oeuvre par ce dispositif |
US7634978B2 (en) | 2003-12-23 | 2009-12-22 | Peugeot Citroen Automobiles Sa | Device for controlling the temperature of fluids circulating in a heat engine vehicle and method used by said device |
EP2241733A1 (fr) * | 2003-12-23 | 2010-10-20 | Peugeot Citroën Automobiles SA | Dispositif de régulation thermique des fluides circulant dans un véhicule à moteur thermique et procédé mis en oeuvre par ce dispositif |
Also Published As
Publication number | Publication date |
---|---|
DE4235883C2 (de) | 1995-04-13 |
DE4235883A1 (de) | 1994-04-28 |
EP0593942B1 (fr) | 1996-07-24 |
ATE140765T1 (de) | 1996-08-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2741244C2 (de) | Kühlungsanordnung an einer luftgekühlten Brennkraftmaschine | |
DE19854544B4 (de) | Kühlsystem für eine aufgeladene Brennkraftmaschine | |
DE19849492B4 (de) | Steuervorrichtung für einen Kühlkreislauf einer Brennkraftmaschine | |
EP0593942B1 (fr) | Accumulateur de chaleur pour le circuit de refroidissement de moteurs à combustion interne refroidis par un liquide | |
DE4220672C2 (de) | Kühleranordnung | |
DE10161851A1 (de) | Kühlkreislauf einer flüssigkeitsgekühlten Brennkraftmaschine | |
EP0512307A1 (fr) | Système de refroidissement pour un moteur à combustion interne suralimenté | |
DE102013209045A1 (de) | Kühlsystem für ein Hybridfahrzeug sowie Verfahren zum Betrieb eines derartigen Kühlsystems | |
DE102010025733A1 (de) | Wärmetauschsysteme für Kraftfahrzeuge | |
DE102010043978A1 (de) | Anordnung zum Kühlen von Bauteilen eines HEV | |
EP0471929B1 (fr) | Dispositif pour refroidir la boîte à gants d'un véhicule automobile | |
DE102010015331A1 (de) | Kühleranordnung für ein Fahrzeug und Verfahen zum Betreiben einer Kühleranordnung | |
DE3245026A1 (de) | Verfahren und waermetauscheranordnung zur temperierung bei kraftfahrzeugen mit verbrennungsmotor | |
DE19628542A1 (de) | Kühlsystem für einen Verbrennungsmotor | |
DE3201443A1 (de) | "antriebseinheit, insbesondere fuer kraftfahrzeuge" | |
DE202012012516U1 (de) | Kompaktes Heiz-/Kühlmodul | |
DE2749030A1 (de) | Waermeabfuehreinrichtung | |
EP1772607B1 (fr) | Echangeur thermique pour le refroidissement de l'air d'alimentation | |
EP0522288A1 (fr) | Aménagement d'échangeur de chaleur | |
DE102014220491A1 (de) | Temperieranordnung für Getriebeöl und Verfahren zum Temperieren von Getriebeöl | |
DE3200683A1 (de) | Aufgeladene brennkraftmaschine | |
DE10301797A1 (de) | Brennkraftmaschine mit einem Kühlmittelkreislauf | |
DE102021126835A1 (de) | Kühleranordnung mit wenigstens zwei Wärmeübertragern mit unterschiedlicher Grundfläche, Kraftfahrzeug mit Kühleranordnung | |
DE19535782C2 (de) | Klimatisierungsanordnung für Nutzfahrzeuge, insbesondere Omnibusse, mit einem mindestens kühlseitigen Zwischenüberträger | |
DE2935589A1 (de) | Fahrzeugantrieb |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19940223 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH FR IT LI |
|
17Q | First examination report despatched |
Effective date: 19950303 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
ITF | It: translation for a ep patent filed |
Owner name: BARZANO' E ZANARDO ROMA S.P.A. |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH FR IT LI |
|
REF | Corresponds to: |
Ref document number: 140765 Country of ref document: AT Date of ref document: 19960815 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: ISLER & PEDRAZZINI AG |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Free format text: MERCEDES-BENZ AG TRANSFER- MERCEDES-BENZ AG;DAIMLER-BENZ AKTIENGESELLSCHAFT |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Free format text: MERCEDES-BENZ AG;DAIMLER-BENZ AKTIENGESELLSCHAFT TRANSFER- DAIMLERCHRYSLER AG |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19990923 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19990927 Year of fee payment: 7 Ref country code: CH Payment date: 19990927 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000925 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000930 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000930 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010531 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050925 |