WO2003064194A1 - Installation de climatisation - Google Patents

Installation de climatisation Download PDF

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Publication number
WO2003064194A1
WO2003064194A1 PCT/EP2003/000469 EP0300469W WO03064194A1 WO 2003064194 A1 WO2003064194 A1 WO 2003064194A1 EP 0300469 W EP0300469 W EP 0300469W WO 03064194 A1 WO03064194 A1 WO 03064194A1
Authority
WO
WIPO (PCT)
Prior art keywords
air conditioning
heat exchanger
heat
conditioning system
heating
Prior art date
Application number
PCT/EP2003/000469
Other languages
German (de)
English (en)
Inventor
Hans Hammer
Dirk Schröder
Frank Obrist
Martin Graz
Peter Kuhn
Original Assignee
Audi Ag
Obrist Engineering Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Audi Ag, Obrist Engineering Gmbh filed Critical Audi Ag
Publication of WO2003064194A1 publication Critical patent/WO2003064194A1/fr

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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H1/00899—Controlling the flow of liquid in a heat pump system
    • 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
    • B60H1/00314—Arrangements permitting a rapid heating of the heating liquid
    • 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
    • F01P2050/00—Applications
    • F01P2050/02—Marine engines
    • F01P2050/06—Marine engines using liquid-to-liquid heat exchangers
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/14—Condenser
    • 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
    • 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

Definitions

  • the invention relates to an air conditioning system with the features of the preamble of patent claim 1.
  • Air conditioning of this type includes known from US Pat. No. 5,291,941.
  • the power of the compressor of the air conditioning system is used by flowing through a channel region through the actuation of a switching valve, which runs in the bypass to the condenser of the cooling process, so that the thermal energy generated by the compressor gets into the evaporator of the cooling process and through the fan of the vehicle ventilation, into the passenger compartment.
  • the evaporator of the air conditioning system is used both for cooling and for heating the passenger compartment, the heat transfer medium has different physical properties when it flows through the evaporator, so that it is not optimally designed for both modes of operation and disturbing flow noises can occur in it.
  • DE-A-3907201 In order to prevent the penetration of moisture from the evaporator into the passenger compartment, DE-A-3907201 has proposed that only one of two air conditioning heat exchangers connected in parallel be used, one of which forms the evaporator and the other a heating heat exchanger.
  • This arrangement is structurally complex in that it has a larger space requirement due to the parallel arrangement and thus requires a new construction of the ventilation housing comprising the heat exchanger and the blower, which is more difficult to integrate into the vehicle.
  • the invention has for its object to improve an air conditioning system of the type mentioned with little design effort such that when the vehicle engine is cold started, it can deliver a large amount of heat suitable for rapid heating of the passenger compartment within a short time, and a sudden fogging of the vehicle windows prevented due to residual moisture present in an air conditioning heat exchanger.
  • FIG. 1 shows a simplified, schematic representation of the duct system of a first embodiment of an air conditioning system according to the invention, with an additional heating heat exchanger arranged in the ventilation housing,
  • FIGS. 2 and 3 show two variants of a second embodiment of an air conditioning system according to the invention, with heat exchange between two different heat carriers,
  • FIG. 4 shows a schematic partial representation of the channel system of the second embodiment with a further variant.
  • FIG. 1 to 3 show the channel system 1 of e.g. with carbon dioxide operated air conditioning system, the central component of which is a compressor 2, in order, depending on the mode of operation, to circulate the heat transfer medium through one of two system areas 3 and 4 or 5.
  • the changeover between the two system areas is carried out by a changeover valve 6.
  • the first system area 3 is used for cooling operation and is accordingly equipped in the usual way with a gas cooler 7, an intermediate heat exchanger 8, an expansion valve 9, an evaporator 10 and a collector 11, which are arranged one behind the other in the direction of flow.
  • the in compressor 2 Generated thermal energy is thus released in the gas cooler 7 and intermediate heat exchanger 8 before the heat transfer medium in the valve 9 expands and cools through the evaporator 10 arranged in a ventilation housing 12. In this, it is in heat exchange with an air flow generated by a blower, indicated by the arrows 14, which is supplied to the undivided passenger compartment of a vehicle for air conditioning.
  • the second system area 4 or 5 provided for heating operation is put into operation instead of the first system area 3 by means of the changeover valve 6 designed as a three-way valve.
  • this second system area 4 or 5 essentially has only one expansion valve 16 and one heating heat exchanger 17 or 22, which are arranged one behind the other in the direction of flow, so that thermal energy generated in the compressor 2 without prior cooling of this heating heat exchanger 17 or 22 is supplied. Due to the considerably limited number of components, this system area 4 is characterized by a rapid pressure build-up or high work dynamics.
  • a connection line 18 between the two system areas 3 and 4 or 5 on the suction side and to be assigned to the first system area 3 ensures e.g. A sufficient filling of the second system area 4 or 5 with the e.g. heat carriers consisting of carbon dioxide.
  • a pressure relief valve 35 can also be provided in the connecting line 18, which releases the connection to the first system area 3 when a certain suction-side maximum pressure which is dependent on the predetermined compression capacity of the compressor 2 is exceeded.
  • the heating heat exchanger 17, in relation to the air flow 14, is in series behind the engine heat exchanger 20 heated by the cooling medium of the vehicle engine 19 and with it and the evaporator 10 in the same, also as a Makasten designated ventilation housing 12 arranged so that heating of the evaporator 10 is avoided.
  • the heating operation due to the thermal energy supplied by the compressor 2 enables, e.g. for quick defrosting of iced-up panes, an immediate supply of heat to the passenger compartment of the vehicle, in that a warm air flow is already supplied via the ventilation housing 12 before the cooling medium of the vehicle engine, as a second heat carrier, can contribute to the heating via the engine heat exchanger 20.
  • the accelerated heating of the driving gas space takes place in conjunction with an accelerated heating of the usually liquid cooling medium of the vehicle engine 19.
  • a heating heat exchanger 22 is provided for this purpose, in which the second heat carrier circulating in a separate engine heat circuit 23 is provided Heat exchange is in heat exchange with the first heat carrier of the system area 5 circulating in gaseous form under high pressure.
  • This embodiment has the advantage that no structural changes are required on the ventilation housing 12 by the heating heat exchanger 22 being able to be arranged at any suitable location. It forms a connecting link between the system area 4 or 5 and the engine heat circuit 23.
  • This engine heat circuit 23, which is required for heating the passenger compartment, is provided in a manner customary for engine cooling in addition to a second engine heat circuit 25 that can be activated via a thermostat and has the exterior engine cooler 24. Accordingly, in this embodiment, the heat is supplied to the passenger compartment solely by the engine heat exchanger 20.
  • the circulation of the second heat carrier takes place through the cooling water pump, which is present anyway on the vehicle engine, and is controlled by a thermostatic valve 26.
  • an additional circulation pump 27 is provided instead of a thermostatic valve 26, which is controlled by a temperature sensor 28.
  • the thermal cycle process that takes place in heating mode via the heat exchanger 17 or 22 takes place in the state diagram according to Mollier along a triangular curve running in the steam area, with isenthalpic expansion in the expansion valve 16 and isobaric heat emission in the heat exchanger 17 or 22.
  • Embodiments of the invention are also possible in which the expansion of the vaporous heat carrier compressed in one stage in the compressor 2 takes place in several stages via a plurality of expansion valves 29, 30, 31, with isobaric heat emission taking place between the stages, via a plurality of heat exchangers 32, 33, 34 arranged in series , so that two parts of the triangular curve of the Mollier diagram that run perpendicular to each other are replaced by a step-shaped curve area compared to the one-step procedure.
  • a continuous expansion combined with a continuous heat exchange, can be provided by making the steam channel leading through the heat exchanger 17 or 22 so narrow in cross-section that the steam flow is throttled down to the suction pressure the compressor 2 takes place.
  • the step-shaped curve profile of the aforementioned exemplary embodiment is replaced by a flat, curved curve profile.
  • the heating operation by means of the compressor 2 via the system areas 4 and 5 is only required until the operating temperature of the vehicle engine 19 is reached, since sufficient heating can then take place via the engine heat exchanger 20 present in the engine heat circuit 23.
  • the signal from a temperature sensor (not shown) in the engine heat circuit 23 ensures that when the vehicle engine 19 is at operating temperature, the auxiliary heating via the air conditioning system is interrupted or prevented.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention concerne une installation de climatisation conçue à des fins de chauffage et de refroidissement, comprenant un système de canaux (1) qui permet de faire fonctionner de manière sélective deux zones de système (3, 4) comportant un compresseur commun (2), au moyen d'une soupape d'inversion (6). La première zone de système comprend non seulement un évaporateur (10) disposé dans un logement de ventilation (12) mais également les composants nécessaires au mode refroidissement. La seconde zone de système (4), qui est prévue pour le mode chauffage, comporte non seulement ledit compresseur (2) mais aussi et principalement une soupape de détente (16) ainsi qu'un échangeur de chaleur de chauffage (17) conçu à des fins de chauffage. Ce dernier permet de chauffer l'habitacle indépendamment d'une source de chaleur externe et par l'intermédiaire des performances du compresseur (2), de façon à fournir de la chaleur en un laps de temps réduit à partir du démarrage à froid du moteur de commande (19).
PCT/EP2003/000469 2002-01-29 2003-01-18 Installation de climatisation WO2003064194A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10203293.9 2002-01-29
DE2002103293 DE10203293A1 (de) 2002-01-29 2002-01-29 Klimaanlage

Publications (1)

Publication Number Publication Date
WO2003064194A1 true WO2003064194A1 (fr) 2003-08-07

Family

ID=7713264

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/000469 WO2003064194A1 (fr) 2002-01-29 2003-01-18 Installation de climatisation

Country Status (2)

Country Link
DE (1) DE10203293A1 (fr)
WO (1) WO2003064194A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009024290A1 (fr) * 2007-08-20 2009-02-26 Thermo King Deutschland Gmbh Dispositif de climatisation d'un véhicule

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10352957B3 (de) * 2003-11-13 2005-02-03 Audi Ag Klimaanlage für Kraftfahrzeuge
DE10359773B4 (de) * 2003-12-19 2007-03-29 Audi Ag Klimaanlage für ein Fahrzeug
DE102004003501B4 (de) * 2004-02-13 2005-12-29 Audi Ag Klimaanlage für ein Fahrzeug, insbesondere für ein Kraftfahrzeug
DE102006024796B4 (de) 2006-03-17 2009-11-26 Konvekta Ag Klimaanlage
DE102013208115A1 (de) 2013-05-03 2014-11-06 Behr Gmbh & Co. Kg Kühlkreislauf
DE102020115810A1 (de) 2020-06-16 2021-12-16 Audi Aktiengesellschaft Kühlbehälter und Kühlbehälterkältemittelkreislauf für ein elektrisch angetriebenes Kraftfahrzeug und Kraftfahrzeug mit Kühlbehälter
DE102020131978A1 (de) 2020-12-02 2022-06-02 Audi Aktiengesellschaft Temperierbehälter und Temperierbehälter-Kältemittelkreislauf für ein elektrisch angetriebenes Kraftfahrzeug und Kraftfahrzeug mit Temperierbehälter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123916A (en) * 1977-07-05 1978-11-07 Ford Motor Company Automotive heat pump
FR2621867A1 (fr) * 1987-10-16 1989-04-21 Valeo Installation de chauffage et de climatisation pour vehicule automobile comportant un generateur de chaleur
DE3907201A1 (de) * 1989-03-07 1990-09-13 Bayerische Motoren Werke Ag Klimaanlage fuer kraftfahrzeuge mit einem von kuehlen auf heizen umschaltbaren kreislauf
US5291941A (en) 1991-06-24 1994-03-08 Nippondenso Co., Ltd. Airconditioner having selectively operated condenser bypass control
DE19921812A1 (de) * 1999-05-11 2000-11-23 Valeo Klimasysteme Gmbh Heizsystemkomponenten
US6178761B1 (en) * 1998-05-28 2001-01-30 Valeo Climatisation Air conditioning circuit using a refrigerant fluid in the supercritical state, in particular for a vehicle
EP1132230A1 (fr) * 2000-03-10 2001-09-12 Valeo Climatisation Dispositif de chauffage et/ou climatisation de l'habitacle d'un véhicule à moteur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3635353A1 (de) * 1986-10-17 1988-04-28 Audi Ag Klimaanlage an einem kraftfahrzeug
JPH0238131A (ja) * 1988-07-29 1990-02-07 Sanden Corp 車両用空調装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123916A (en) * 1977-07-05 1978-11-07 Ford Motor Company Automotive heat pump
FR2621867A1 (fr) * 1987-10-16 1989-04-21 Valeo Installation de chauffage et de climatisation pour vehicule automobile comportant un generateur de chaleur
DE3907201A1 (de) * 1989-03-07 1990-09-13 Bayerische Motoren Werke Ag Klimaanlage fuer kraftfahrzeuge mit einem von kuehlen auf heizen umschaltbaren kreislauf
US5291941A (en) 1991-06-24 1994-03-08 Nippondenso Co., Ltd. Airconditioner having selectively operated condenser bypass control
US6178761B1 (en) * 1998-05-28 2001-01-30 Valeo Climatisation Air conditioning circuit using a refrigerant fluid in the supercritical state, in particular for a vehicle
DE19921812A1 (de) * 1999-05-11 2000-11-23 Valeo Klimasysteme Gmbh Heizsystemkomponenten
EP1132230A1 (fr) * 2000-03-10 2001-09-12 Valeo Climatisation Dispositif de chauffage et/ou climatisation de l'habitacle d'un véhicule à moteur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SUZUKI T ET AL: "GAS.INJECTION HEAT PUMP SYSTEM FOR ELECTRIC VEHICLE", EVS - 13. 13TH. INTERNATIONAL ELECTRIC VEHICLE SYMPOSIUM. OSAKA, OCT. 13 - 16, 1996. SESSIONS 5A - 6H + POSTER/DIALOGUE SESSION, EVS. INTERNATIONAL ELECTRIC VEHICLE SYMPOSIUM, TOKYO, JEVA, JP, vol. 2 SYMP. 13, 13 October 1996 (1996-10-13), pages 245 - 250, XP000688958 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009024290A1 (fr) * 2007-08-20 2009-02-26 Thermo King Deutschland Gmbh Dispositif de climatisation d'un véhicule

Also Published As

Publication number Publication date
DE10203293A1 (de) 2003-07-31

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