DE102008019044A1 - Coolant cycle for use in vehicle air conditioning system, has expansion body provided with high pressure side, which stands in flow connection with condenser, where expansion body is attached between outlet and internal heat exchanger - Google Patents

Coolant cycle for use in vehicle air conditioning system, has expansion body provided with high pressure side, which stands in flow connection with condenser, where expansion body is attached between outlet and internal heat exchanger Download PDF

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Publication number
DE102008019044A1
DE102008019044A1 DE102008019044A DE102008019044A DE102008019044A1 DE 102008019044 A1 DE102008019044 A1 DE 102008019044A1 DE 102008019044 A DE102008019044 A DE 102008019044A DE 102008019044 A DE102008019044 A DE 102008019044A DE 102008019044 A1 DE102008019044 A1 DE 102008019044A1
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Prior art keywords
heat exchanger
expansion body
evaporator
refrigerant
pressure side
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DE102008019044A
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German (de)
Inventor
Stefan Morgenstern
Robert Dr. Mager
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Priority to DE102008019044A priority Critical patent/DE102008019044A1/en
Publication of DE102008019044A1 publication Critical patent/DE102008019044A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The cycle has a coolant compressor (1) provided for compression of coolant. An evaporator (9) is arranged behind an expansion body (8) in a direction of flow of the coolant, where the coolant flows in a suction side (14) of the compressor from the evaporator via low pressure sides (12, 13) of an internal heat exchanger (6). An expansion body (16) has a high pressure side, which stands in flow connection with a condenser (3) or gas cooler, where the expansion body (16) is attached between an outlet (4) and the internal heat exchanger.

Description

Die vorliegende Erfindung betrifft einen Kältemittelkreislauf für Fahrzeugklimaanlagen gemäß dem Oberbegriff des Patentanspruches 1.The The present invention relates to a refrigerant circuit for vehicle air conditioners according to the preamble of claim 1.

Kältemittelkreisläufe von Fahrzeugklimaanlagen weisen üblicherweise mindestens einen Verdichter, einen Kondensator bzw. einen Gaskühler, ein Expansionsorgan, einen Verdampfer und ein die einzelnen Komponenten verbindendes Leitungssystem auf. Manche Kältemittelkreisläufe weisen ferner einen inneren Wärmetauscher auf, der zur Wärmeübertragung von der Hochdruckseite des Kältemittelkreislaufs, d. h. vor dem Expansionsorgan, zur Niederdruckseite des Kältemittelkreislaufs, d. h. nach dem Verdampfer, vorgesehen ist. Insbesondere Kältemittelkreisläufe, die mit Kältemittel R744 (Kohlendioxid) betrieben werden, weisen häufig einen inneren Wärmetauscher auf. Innere Wärmetauscher sind aber auch von herkömmlichen Kältemittelkreisläufen bekannt, die mit dem Kältemittel R134a (Tetraflourethan) betrieben werden. Durch den inneren Wärmetauscher erhöht sich die im Verdampfer nutzbare spezifische Enthalpiedifferenz und somit die Kälteleistung und Effizienz der Klimaanlage.Refrigerant circuits of vehicle air conditioners usually have at least a compressor, a condenser or a gas cooler, an expansion device, an evaporator and the individual components connecting line system. Some refrigerant circuits further comprise an inner heat exchanger, the Heat transfer from the high pressure side of the refrigerant circuit, d. H. in front of the expansion element, to the low-pressure side of the refrigerant circuit, d. H. after the evaporator, is provided. In particular, refrigerant circuits, which are operated with refrigerant R744 (carbon dioxide), often have an internal heat exchanger. Internal heat exchangers are also of conventional Refrigerant circuits known with the refrigerant R134a (Tetraflourethan) are operated. Through the inner heat exchanger increases the usable in the evaporator specific enthalpy difference and thus the cooling capacity and efficiency of the air conditioning.

Bekannt sind ferner Kältemittelkreisläufe mit mehreren Verdampfern. Seit langem bekannt sind insbesondere Fahrzeugklimaanlagen mit einem Verdampfer für den Fahrer- und Beifahrerbereich sowie einen separaten Verdampfer für den Fond-Bereich. Bei Kältemittelkreisläufen mit mehreren Ver dampfern verzweigt sich das Leitungssystem üblicherweise nach dem inneren Wärmetauscher auf die einzelnen Pfade, die jeweils ein Expansionsorgan und einen Verdampfer aufweisen. Zum technischen Hintergrund der vorliegenden Erfindung zählen insbesondere die DE 33 33 012 A1 , DE 103 06 359 A1 , DE 10 2005 005 430 A1 , WO 2007/107535 A1 , DE 10 2005 001 231 A1 und die DE 102 45 257 A1 .Also known are refrigerant circuits with multiple evaporators. In particular, vehicle air conditioning systems with an evaporator for the driver and passenger area as well as a separate evaporator for the rear area have been known for a long time. In refrigerant circuits with multiple evaporators United piping usually branches after the inner heat exchanger to the individual paths, each having an expansion element and an evaporator. The technical background of the present invention includes in particular the DE 33 33 012 A1 . DE 103 06 359 A1 . DE 10 2005 005 430 A1 . WO 2007/107535 A1 . DE 10 2005 001 231 A1 and the DE 102 45 257 A1 ,

Fahrzeugklimaanlagen, bei denen die einzelnen Verdampfer in der oben beschriebenen Weise in den Kältemittelkreislauf integriert sind, sind hinsichtlich der Leitungsführung bzw. der Leitungsverlegung im Fahrzeug relativ aufwändig. Eine Abzweigung sämtlicher Verdampferzweige direkt nach dem inneren Wärmetauscher ist mit einem hohen technischen, insbesondere geometrischen Aufwand verbunden. Darüber hinaus ergeben sich aus einer derartigen Anordnung relativ ungünstige Randbedingungen, was die Abstimmung der Kältemittelmenge und des Innenvolumens der Anlage betrifft. In R744-Kältemittelkreisläufen ist die maximale Kältemittelfülldichte begrenzt. Die Leitungen zu dem Verdampfer bzw. zu den Verdampfern im hinteren Bereich eines Fahrzeugs können relativ lang sein. Gleichzeitig sind die Kältemittelleitungen vom inneren Wärmetauscher zu den einzelnen Expansionsorganen diejenigen Leitungsabschnitte eines Kältemittelkreislaufs, in denen das Kältemittel die größte Dichte aufweist. Um den Vorschriften hinsichtlich Betriebsfüllung und maximal zulässiger Fülldichte gerecht zu werden, kann es mitunter notwendig sein, das niederdruckseitige Anlagenvolumen zu vergrößern, um für große hochdruckseitige Anlagenteile entsprechende Kompensionsvolumina vorzuhalten.Vehicle air conditioners, where the individual evaporator in the manner described above are integrated in the refrigerant circuit are in terms the wiring or the wiring in the vehicle relatively expensive. A diversion of all Evaporator branches directly after the inner heat exchanger is with a high technical, especially geometric effort connected. In addition, arise from such an arrangement relatively unfavorable boundary conditions, what the vote the amount of refrigerant and the internal volume of the plant. In R744 refrigerant circuits, the maximum is Limited refrigerant charge. The wires to the evaporator or to the evaporators in the rear of a Vehicles can be relatively long. At the same time are the refrigerant pipes from the inner heat exchanger to the individual expansion organs those line sections of a refrigerant circuit, where the refrigerant is the largest density having. In order to comply with the regulations regarding the operation and to meet the maximum permissible filling density, it may sometimes be necessary to use the low-pressure system volume to enlarge for big ones High-pressure-side plant components corresponding volume of the volume reproach.

Aufgabe der Erfindung ist es, einen Kältemittelkreislauf mit mindestens zwei separaten Verdampferzweigen zu schaffen, bei dem die o. g. Nachteile herkömmlicher Kreisläufe möglichst vermieden werden.task The invention is a refrigerant circuit with at least to provide two separate evaporator branches, in which the o. g. Disadvantages of conventional circuits possible be avoided.

Diese Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen.These The object is solved by the features of claim 1. Advantageous embodiments and further developments of the invention are to refer to the dependent claims.

Ausgangspunkt der Erfindung ist eine Fahrzeugklimaanlage mit einem Kältemittelkreislauf, der folgende Komponenten aufweist:

  • – Einen Verdichter, der zum Verdichten von Kältemittel vorgesehen ist.
  • – Einen Kondensator bzw. Gaskühler, der in Strömungsrichtung des Kältemittels betrachtet hinter dem Verdichter angeordnet ist,
  • – ein erstes Expansionsorgan, das über eine Hochdruckseite eines inneren Wärmetauschers mit einem Ausgang des Kondensators bzw. Gaskühlers verbunden ist,
  • – einen Verdampfer, der in Strömungsrichtung des Kältemittels betrachtet hinter dem ersten Expansionsorgan angeordnet ist, wobei das Kältemittel vom Verdampfer über eine Niederdruckseite des inneren Wärmetauschers zu einer Saugseite des Verdichters strömt und
  • – ein zweites Expansionsorgan.
The starting point of the invention is a vehicle air conditioning system with a refrigerant circuit, which has the following components:
  • - A compressor, which is intended for compressing refrigerant.
  • A condenser or gas cooler, which, viewed in the flow direction of the refrigerant, is arranged behind the compressor,
  • A first expansion element, which is connected via a high-pressure side of an internal heat exchanger to an outlet of the condenser or gas cooler,
  • - An evaporator, which is viewed in the flow direction of the refrigerant disposed behind the first expansion element, wherein the refrigerant flows from the evaporator via a low pressure side of the inner heat exchanger to a suction side of the compressor and
  • - a second expansion organ.

Der Kern der Erfindung besteht darin, dass eine Hochdruckseite des zweiten Expansionsorgans vor der Hochdruckseite des inneren Wärmetauschers mit dem Ausgang des Kondensators in Fluidverbindung steht. Der ”Verdampferzweig”, der durch das zweite Expansionsorgan und den zweiten Verdampfer gebildet ist, ist also zwischen dem Kondensator bzw. Gaskühler und dem inneren Wärmetauscher angeschlossen und nicht, wie der erste ”Verdampferzweig”, nach dem inneren Wärmetauscher.Of the Essence of the invention is that a high pressure side of the second Expansion organ before the high pressure side of the inner heat exchanger is in fluid communication with the output of the capacitor. The "evaporator branch", the through the second expansion element and the second evaporator is formed, that is between the condenser or gas cooler and the internal heat exchanger and not, like the first "evaporator branch", after the inner one Heat exchanger.

Die Rückleitung vom zweiten Verdampfer kann bei hochdruckseitigem Sammler zusammen mit der Rückleitung des ersten Verdampfers in den inneren Wärmetauscher eingespeist werden oder auch stromabwärts des inneren Wärmetauschers. Bei niederdruckseitig angeordnetem Sammler kann die Zusammenführung vor dem inneren Wärmetauscher erfolgen.The Return from the second evaporator can at high pressure side Collector along with the return of the first evaporator be fed into the inner heat exchanger or downstream of the internal heat exchanger. At low pressure side arranged Collector can merge before the inner heat exchanger respectively.

Im Folgenden wird die Erfindung im Zusammenhang mit der Zeichnung näher erläutert. Die einzige 1 zeigt das Grundprinzip der Erfindung.In the following the invention will be explained in connection with the drawing. The only 1 shows the basic principle of the invention.

1 zeigt einen Kältemittelkreislauf einer Fahrzeugklimaanlage mit einem Kältemittelverdichter 1, an dessen Ausgang 2 ein Kondensator bzw. Gaskühler 3 angeschlossen ist. Ein Ausgang 4 des Kondensators 3 ist mit einem Hochdruckanschluss 5 eines inneren Wärmetauschers 6 verbunden. Ein Hochdruckausgang 7 des inneren Wärmetauschers 6 ist mit einem ersten Expansionsorgan 8 und einem in Strömungsrichtung dahinter angeordneten ersten Verdampfer 9 verbunden. Ein Ausgang 10 des ersten Verdampfers 9 steht über einen Sammler 11 in Strömungsverbindung mit einem Niederdruckeingang 12 des inneren Wärmetauschers 6. Ein Niederdruckausgang 13 des inneren Wärmetauschers 6 ist mit einem Sauganschluss 14 des Verdichters 1 verbunden. 1 shows a refrigerant circuit of a vehicle air conditioner with a refrigerant compressor 1 , at the exit 2 a condenser or gas cooler 3 connected. An exit 4 of the capacitor 3 is with a high pressure connection 5 an internal heat exchanger 6 connected. A high pressure outlet 7 of the internal heat exchanger 6 is with a first expansion organ 8th and a downstream in the flow direction arranged first evaporator 9 connected. An exit 10 of the first evaporator 9 is about a collector 11 in fluid communication with a low pressure input 12 of the internal heat exchanger 6 , A low pressure outlet 13 of the internal heat exchanger 6 is with a suction connection 14 of the compressor 1 connected.

Wie aus 1 ersichtlich ist, zweigt nach dem Ausgang 4 des Kondensators 3 eine Kältemittelleitung 15 ab, über die ein zweites Expansionsorgan 16 mit dem Kondensator 3 verbunden ist. In Strömungsrichtung des Kältemittels gesehen hinter dem zweiten Expansionsorgan 16 ist ein zweiter Verdampfer 17 angeordnet, der über eine Kältemittelleitung 18 ebenfalls mit dem Eingang des Sammlers 11 verbunden ist.How out 1 is evident, branches to the exit 4 of the capacitor 3 a refrigerant line 15 off, over which a second expansion organ 16 with the capacitor 3 connected is. Viewed in the flow direction of the refrigerant behind the second expansion element 16 is a second evaporator 17 arranged, via a refrigerant pipe 18 also with the entrance of the collector 11 connected is.

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • - DE 3333012 A1 [0003] - DE 3333012 A1 [0003]
  • - DE 10306359 A1 [0003] - DE 10306359 A1 [0003]
  • - DE 102005005430 A1 [0003] - DE 102005005430 A1 [0003]
  • - WO 2007/107535 A1 [0003] WO 2007/107535 A1 [0003]
  • - DE 102005001231 A1 [0003] DE 102005001231 A1 [0003]
  • - DE 10245257 A1 [0003] - DE 10245257 A1 [0003]

Claims (3)

Kältemittelkreis einer Fahrzeugklimaanlage, mit – einem Verdichter (1), der zum Verdichten von Kältemittel vorgesehen ist, – einem Kondensator (3) oder Gaskühler, der in Strömungsrichtung des Kältemittels betrachtet hinter dem Verdichter (1) angeordnet ist, – einem ersten Expansionsorgan (8), das über eine Hochdruckseite (5, 7) eines inneren Wärmetauschers (6) mit einem Ausgang (4) des Kondensators (3) verbunden ist, – einem ersten Verdampfer (9), der in Strömungsrichtung des Kältemittels betrachtet hinter dem ersten Expansionsorgan (8) angeordnet ist, wobei Kältemittel vom ersten Verdampfer (9) über eine Niederdruckseite (12, 13) des inneren Wärmetauschers (6) zu einer Saugseite (14) des Verdichters (1) strömt, und – einem zweiten Expansionsorgan (16), dadurch gekennzeichnet, dass eine Hochdruckseite des zweiten Expansionsorgans (16) mit dem Kondensator (3) oder Gaskühler in Strömungsverbindung steht, wobei das zweite Expansionsorgan (16) zwischen dem Ausgang (4) und dem inneren Wärmetauscher (6) angeschlossen ist.Refrigerant circuit of a vehicle air conditioning system, with - a compressor ( 1 ), which is provided for compressing refrigerant, - a condenser ( 3 ) or gas cooler, viewed in the flow direction of the refrigerant behind the compressor ( 1 ), - a first expansion organ ( 8th ), which via a high-pressure side ( 5 . 7 ) of an internal heat exchanger ( 6 ) with an output ( 4 ) of the capacitor ( 3 ), - a first evaporator ( 9 ), viewed in the flow direction of the refrigerant behind the first expansion element ( 8th ), wherein refrigerant from the first evaporator ( 9 ) via a low pressure side ( 12 . 13 ) of the internal heat exchanger ( 6 ) to a suction side ( 14 ) of the compressor ( 1 ) flows, and - a second expansion element ( 16 ), characterized in that a high-pressure side of the second expansion element ( 16 ) with the capacitor ( 3 ) or gas cooler is in flow communication, wherein the second expansion element ( 16 ) between the output ( 4 ) and the inner heat exchanger ( 6 ) connected. Kältemittelkreis nach Anspruch 1, dadurch gekennzeichnet, dass nach dem zweiten Expansionsorgan (16) ein zweiter Verdampfer (17) vorgesehen ist.Refrigerant circuit according to claim 1, characterized in that after the second expansion element ( 16 ) a second evaporator ( 17 ) is provided. Kältemittelkreis nach Anspruch 2, dadurch gekennzeichnet, dass der erste und der zweite Verdampfer (9, 17) über einen Sammler (11) und den inneren Wärmetauscher (6) mit der Saugseite des Verdichters (1) in Strömungsverbindung stehen.Refrigerant circuit according to claim 2, characterized in that the first and the second evaporator ( 9 . 17 ) about a collector ( 11 ) and the inner heat exchanger ( 6 ) with the suction side of the compressor ( 1 ) are in fluid communication.
DE102008019044A 2008-04-16 2008-04-16 Coolant cycle for use in vehicle air conditioning system, has expansion body provided with high pressure side, which stands in flow connection with condenser, where expansion body is attached between outlet and internal heat exchanger Withdrawn DE102008019044A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102008019044A DE102008019044A1 (en) 2008-04-16 2008-04-16 Coolant cycle for use in vehicle air conditioning system, has expansion body provided with high pressure side, which stands in flow connection with condenser, where expansion body is attached between outlet and internal heat exchanger

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Application Number Priority Date Filing Date Title
DE102008019044A DE102008019044A1 (en) 2008-04-16 2008-04-16 Coolant cycle for use in vehicle air conditioning system, has expansion body provided with high pressure side, which stands in flow connection with condenser, where expansion body is attached between outlet and internal heat exchanger

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DE102008019044A1 true DE102008019044A1 (en) 2009-10-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012224484A1 (en) * 2012-12-28 2014-07-03 Behr Gmbh & Co. Kg Air conditioning apparatus for motor vehicle, performs fluid supply from upper branch to lower branch using fluid inlet and fluid return from lower branch to upper branch using fluid outlet
FR3012587A1 (en) * 2013-10-30 2015-05-01 Valeo Systemes Thermiques THERMAL CONDITIONING CIRCUIT OF A COCKPIT

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333012A1 (en) 1983-09-13 1985-03-28 Carl Heinrich 3578 Schwalmstadt Schmitt Process and apparatus for the supply of a user with air-conditioning air and simultaneously another user with refrigerating energy
DE10245257A1 (en) 2002-09-27 2004-04-08 Daimlerchrysler Ag Thermal management device for a motor vehicle
DE102005001231A1 (en) 2005-01-11 2006-07-13 Daimlerchrysler Ag Air conditioning for motor vehicles
DE102005005430A1 (en) 2005-02-05 2006-08-10 Daimlerchrysler Ag Method for operating of air conditioning system in motor vehicle in which in heating mode compressed cooling medium is directed through 3/2 directional valve through gas cooler to transfer heat to air flowing into interior of vehicle
WO2007107535A1 (en) 2006-03-17 2007-09-27 Deere & Company Air conditioning system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333012A1 (en) 1983-09-13 1985-03-28 Carl Heinrich 3578 Schwalmstadt Schmitt Process and apparatus for the supply of a user with air-conditioning air and simultaneously another user with refrigerating energy
DE10245257A1 (en) 2002-09-27 2004-04-08 Daimlerchrysler Ag Thermal management device for a motor vehicle
DE102005001231A1 (en) 2005-01-11 2006-07-13 Daimlerchrysler Ag Air conditioning for motor vehicles
DE102005005430A1 (en) 2005-02-05 2006-08-10 Daimlerchrysler Ag Method for operating of air conditioning system in motor vehicle in which in heating mode compressed cooling medium is directed through 3/2 directional valve through gas cooler to transfer heat to air flowing into interior of vehicle
WO2007107535A1 (en) 2006-03-17 2007-09-27 Deere & Company Air conditioning system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012224484A1 (en) * 2012-12-28 2014-07-03 Behr Gmbh & Co. Kg Air conditioning apparatus for motor vehicle, performs fluid supply from upper branch to lower branch using fluid inlet and fluid return from lower branch to upper branch using fluid outlet
FR3012587A1 (en) * 2013-10-30 2015-05-01 Valeo Systemes Thermiques THERMAL CONDITIONING CIRCUIT OF A COCKPIT

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