WO2005039903A1 - Dispositif d’accumulation de froid pour evaporateur - Google Patents
Dispositif d’accumulation de froid pour evaporateur Download PDFInfo
- Publication number
- WO2005039903A1 WO2005039903A1 PCT/FR2004/002672 FR2004002672W WO2005039903A1 WO 2005039903 A1 WO2005039903 A1 WO 2005039903A1 FR 2004002672 W FR2004002672 W FR 2004002672W WO 2005039903 A1 WO2005039903 A1 WO 2005039903A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- evaporator
- cold
- air flow
- loop
- closed loop
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
- B60H1/322—Control means therefor for improving the stop or idling operation of the engine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00492—Heating, cooling or ventilating [HVAC] devices comprising regenerative heating or cooling means, e.g. heat accumulators
- B60H1/005—Regenerative cooling means, e.g. cold accumulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
- B60H1/32281—Cooling devices using compression characterised by refrigerant circuit configurations comprising a single secondary circuit, e.g. at evaporator or condenser side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/323—Cooling devices using compression characterised by comprising auxiliary or multiple systems, e.g. plurality of evaporators, or by involving auxiliary cooling devices
Definitions
- the invention relates to a device for regulating the temperature of an air flow, in particular for air conditioning the passenger compartment of a vehicle, comprising a first closed loop containing an evaporator capable of being traversed by said air flow and wherein a first heat transfer fluid can circulate so as to yield cold to said air flow in one evaporator.
- the evaporator In the particular case of air conditioning of a motor vehicle, the evaporator is traversed by a refrigerant fluid in order to cool the air flow and produce refrigerated air which is sent into the passenger compartment of the vehicle.
- the refrigerant passes, in this order, through a compressor, a condenser, an expansion valve and an evaporator, before returning to the compressor.
- the refrigerant passes from a liquid phase or from a liquid / vapor phase to a vapor phase by receiving heat from the air flow which is thus cooled.
- a refrigerant fluid constituted by a fluorinated hydrocarbon such as that known under the designation R 134 A.
- a disadvantage of known evaporators is that their ability to cool the air flow depends on the operation of the compressor. In other words, the air flow is no longer cooled as soon as the compressor is stopped.
- the compressor is driven by the engine and is therefore put out of operation as soon as the engine is stopped.
- motor vehicles which ensure an internal combustion engine stop when the vehicle is in neutral, then a restart of the engine when necessary, thanks to an alternator starter.
- the air conditioning is also stopped. Stopping the internal combustion engine results in stopping the compressor, resulting in a feeling of discomfort for the passenger or passengers of the vehicle.
- the object of the invention is in particular to overcome the aforementioned drawbacks by proposing means for accumulating cold (consequently yielding heat) when the vehicle engine is running and for restoring this cold in the passenger compartment when the engine is running. 'stop.
- the invention relates in particular to a device of the kind defined in the introduction, and provides that it comprises a second closed loop in which a second heat transfer fluid can circulate so as to receive cold from the first heat transfer fluid in the evaporator and return it to the flow. of air in the evaporator, depending on the cooling power produced by the first loop and the needs of the air flow treatment.
- the second closed loop contains an electric pump for the circulation of the second heat transfer fluid.
- the second closed loop contains means for accumulating cold when the cooling power produced by the first loop exceeds the needs of the treatment and for restoring cold when said power is insufficient.
- a solenoid valve is interposed between the pump and the storage means to promote the conservation of cold in the latter.
- the device illustrated conventionally comprises a loop of refrigerant BF in which the fluid successively passes through a compressor BFl, a condenser BF2, a reservoir or “bottle” BF3, a regulator BF4 and an evaporator BF5 before returning to the compressor.
- An air flow represented by the arrow F passes through the evaporator BF5 to be cooled before being introduced into the passenger compartment of the vehicle.
- the evaporator BF5 is also part of a loop BS which also contains an electric circulation pump BS1 and a fluid accumulation tank BS2.
- the BS loop contains a heat transfer fluid which is capable of exchanging heat with the refrigerant and with the air flow F in the evaporator BF5.
- the pump BS1 is stopped and the fluid does not circulate in the loop BS. Only the small amount of this fluid contained in the BF5 evaporator is cooled by the refrigerant, allowing rapid warming up of the evaporator. As soon as the desired temperature for the evaporator or for the air flow F is reached, the pump BS1 is started, so that cooled fluid circulates in the loop BS, leading to an accumulation of cold in the tank BS2 . If the engine and therefore the compressor BFl stop, the circulation of the fluid in the loop BS continues under the action of the pump BS1, and this fluid takes the coolant relay to cool the air flow F by taking cold from the tank BS2.
- a solenoid valve BS3 interposed between the pump BS1 and the tank BS2 makes it possible to isolate the latter when the pump is stopped, thus promoting the conservation of the cold for a later restitution.
- the total amount of heat transfer fluid in the BS loop depends on the thermal energy (cold) that one seeks to transfer to the air flow to be sent into the passenger compartment.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/575,373 US20070119197A1 (en) | 2003-10-21 | 2004-10-19 | Device for storing cold for an evaporator |
EP04805236A EP1682368A1 (fr) | 2003-10-21 | 2004-10-19 | DISPOSITIF D’ACCUMULATION DE FROID POUR EVAPORATEUR |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0312292 | 2003-10-21 | ||
FR0312292A FR2861163B1 (fr) | 2003-10-21 | 2003-10-21 | Dispositif d'accumulation de froid pour evaporateur |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005039903A1 true WO2005039903A1 (fr) | 2005-05-06 |
Family
ID=34385343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2004/002672 WO2005039903A1 (fr) | 2003-10-21 | 2004-10-19 | Dispositif d’accumulation de froid pour evaporateur |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070119197A1 (fr) |
EP (1) | EP1682368A1 (fr) |
FR (1) | FR2861163B1 (fr) |
WO (1) | WO2005039903A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2136161A1 (fr) * | 2008-06-19 | 2009-12-23 | Valeo Systemes Thermiques | Installation de chauffage, ventilation et/ou climatisation à stockage de froid |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2697662B1 (fr) | 2011-04-13 | 2018-06-06 | Codexis, Inc. | Procédé biocatalytique permettant de préparer de l'eslicarbazépine et ses analogues |
FR3005722B1 (fr) | 2013-05-16 | 2015-04-24 | Valeo Systemes Thermiques | Systeme de climatisation auto-degivrant |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5735133A (en) * | 1996-04-12 | 1998-04-07 | Modine Manufacturing Co. | Vehicular cooling system with thermal storage |
US6112543A (en) * | 1998-08-27 | 2000-09-05 | Behr Gmbh & Co. | Device for cooling an interior compartment of a motor vehicle |
US6260376B1 (en) * | 1998-12-23 | 2001-07-17 | Valeo Klimasysteme Gmbh | Air conditioning installation for a motor vehicle with a cold reservoir |
WO2002103267A1 (fr) * | 2001-06-18 | 2002-12-27 | Bergstrom, Inc. | Systeme modulaire de conditionnement d'air pour vehicule a distribution a basse pression comprenant un refrigerateur a l'interieur de l'habitacle |
US20030159455A1 (en) * | 2002-02-28 | 2003-08-28 | Yasukazu Aikawa | Vehicle air conditioner with cold storage unit |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4637222A (en) * | 1984-06-08 | 1987-01-20 | Nippondenso Co., Ltd. | Refrigerator for vehicle |
JP3414825B2 (ja) * | 1994-03-30 | 2003-06-09 | 東芝キヤリア株式会社 | 空気調和装置 |
US5904052A (en) * | 1996-09-02 | 1999-05-18 | Denso Corporation | Brine type air conditioning apparatus |
US7043931B2 (en) * | 2004-07-27 | 2006-05-16 | Paccar Inc | Method and apparatus for cooling interior spaces of vehicles |
-
2003
- 2003-10-21 FR FR0312292A patent/FR2861163B1/fr not_active Expired - Fee Related
-
2004
- 2004-10-19 WO PCT/FR2004/002672 patent/WO2005039903A1/fr active Application Filing
- 2004-10-19 US US10/575,373 patent/US20070119197A1/en not_active Abandoned
- 2004-10-19 EP EP04805236A patent/EP1682368A1/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5735133A (en) * | 1996-04-12 | 1998-04-07 | Modine Manufacturing Co. | Vehicular cooling system with thermal storage |
US6112543A (en) * | 1998-08-27 | 2000-09-05 | Behr Gmbh & Co. | Device for cooling an interior compartment of a motor vehicle |
US6260376B1 (en) * | 1998-12-23 | 2001-07-17 | Valeo Klimasysteme Gmbh | Air conditioning installation for a motor vehicle with a cold reservoir |
WO2002103267A1 (fr) * | 2001-06-18 | 2002-12-27 | Bergstrom, Inc. | Systeme modulaire de conditionnement d'air pour vehicule a distribution a basse pression comprenant un refrigerateur a l'interieur de l'habitacle |
US20030159455A1 (en) * | 2002-02-28 | 2003-08-28 | Yasukazu Aikawa | Vehicle air conditioner with cold storage unit |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2136161A1 (fr) * | 2008-06-19 | 2009-12-23 | Valeo Systemes Thermiques | Installation de chauffage, ventilation et/ou climatisation à stockage de froid |
FR2932875A1 (fr) * | 2008-06-19 | 2009-12-25 | Valeo Systemes Thermiques | Installation de chauffage, ventilation et/ou climatisation a stockage de froid |
Also Published As
Publication number | Publication date |
---|---|
US20070119197A1 (en) | 2007-05-31 |
EP1682368A1 (fr) | 2006-07-26 |
FR2861163B1 (fr) | 2006-11-24 |
FR2861163A1 (fr) | 2005-04-22 |
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