EP1596140A2 - Dispositif pour l'expansion d'un réfrigérant - Google Patents

Dispositif pour l'expansion d'un réfrigérant Download PDF

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Publication number
EP1596140A2
EP1596140A2 EP05102289A EP05102289A EP1596140A2 EP 1596140 A2 EP1596140 A2 EP 1596140A2 EP 05102289 A EP05102289 A EP 05102289A EP 05102289 A EP05102289 A EP 05102289A EP 1596140 A2 EP1596140 A2 EP 1596140A2
Authority
EP
European Patent Office
Prior art keywords
expansion
refrigerant
valve
expansion device
machine
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Withdrawn
Application number
EP05102289A
Other languages
German (de)
English (en)
Other versions
EP1596140A3 (fr
Inventor
Peter Horstmann
Peter Satzger
Gregory Rewers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1596140A2 publication Critical patent/EP1596140A2/fr
Publication of EP1596140A3 publication Critical patent/EP1596140A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • 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
    • F25B9/06—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • F25B2341/063—Feed forward expansion valves
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/14—Power generation using energy from the expansion of the refrigerant
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/18—Optimization, e.g. high integration of refrigeration components
    • 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
    • F25B2600/00—Control issues
    • F25B2600/17—Control issues by controlling the pressure of the 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters

Definitions

  • the present invention relates to an expansion device for a refrigerant, in particular an expansion device for regulating the high pressure level of a Refrigerant circuit of an air conditioner, according to the preamble of claim 1.
  • the present invention relates to an air conditioner with such Expansion device.
  • the standard version of an air conditioning system generally consists of an evaporator, a condenser or gas cooler, an expansion valve, a compressor and possibly an internal heat exchanger.
  • a supercritical operation of the refrigerant and the refrigerant circuit of the air conditioner is required. This means that in the condenser, the refrigerant is not condensed, but that gas is only cooled in the supercritical state. For this reason, the heat exchanger, which operates as a condenser in conventional refrigeration systems and is called in supercritical operation of the refrigeration system and gas cooler.
  • the pressure during the heat release can be set independently of the temperature.
  • additional degree of freedom typically adjustable expansion valves are used.
  • such an expansion valve regulates the high-pressure level of the refrigeration cycle, so that the efficiency of the refrigeration system or the refrigerating capacity of the refrigerant circuit can be optimally adjusted.
  • a possibility for improvement of the outlined standard version of a refrigeration system For example, it is the expansion valve through a work-performing Expansion device to replace a so-called expansion machine. To this Way, the expansion process of the refrigeration cycle is designed to be more effective and to be recovered at the same time expansion work. The relaxation energy of the Refrigerant is thus converted into mechanical work and for others, downstream processes made usable.
  • DE 198 41 686 A1 discloses a compressor chiller in which a refrigerant is compressed to supercritical pressure in a compressor, then through Heat exchange with the air cooled by a gas cooler and then one Expander is supplied.
  • a gear motor having a housing with Has at least two mutually rotatable gears.
  • an air conditioner in particular an air conditioner for motor vehicles is known, whose refrigerant circuit has a gear machine with a helical toothing, which serves as an expansion machine for the supercritical refrigerant.
  • the gear machine generates energy during the expansion process of the refrigerant, inter alia by recovering the volume change work, which in turn can be used in the refrigerant circuit for compressing the refrigerant.
  • the air conditioning system of DE 100 13 191 C1 is configured in such a way that the refrigerant carbon dioxide (CO 2 ) in the refrigerant circuit is brought from a supercritical state into a wet steam state.
  • the expansion device according to the invention for a refrigerant in particular a Such expansion device for controlling the high pressure level of Refrigerant circuit of an air conditioner, has at least one expansion valve and a Expansion machine on.
  • the expansion device becomes part of the heavy control tasks of the expansion process, or the Safety tasks of the expansion machine from the machine to the expansion valve transfer.
  • the expansion machine thus has only the task of Energy recovery, and the recovered energy in the appropriate form to to provide further use.
  • the setting of the high pressure and the Safety function is provided by the expansion valve expansion valve accepted.
  • Both the expansion machine and the variable expansion valve are in series with each other Refrigerant circuit of the air conditioning arranged.
  • Expansion means are the variable expansion valve and the expansion machine arranged parallel to each other in the refrigerant circuit of the air conditioner.
  • the Parallel connection of expansion valve and expansion machine also makes it possible to simplify the dimensioning of the expansion machine. This can be done in the case of Parallel connection designed only for the usual or optimal mass flow with the expansion valve being used, if increased Mass flows would occur.
  • the expansion valve is a controllable valve, with which can regulate the high pressure level of the refrigerant circuit. It can be both externally and internally controlled.
  • the Expansion valve can be an electrically operated valve or even a mechanical or thermally controlled valve.
  • a possible embodiment of the expansion valve which can be used, consists in an overflow valve, which at a predetermined mass flow of the coolant opens.
  • Expansion device are their controllable expansion valve and the Expansion machine in a structural unit to a compact module summarized.
  • a module can be easily in corresponding Integrate refrigeration circuits.
  • the expansion machine Since the control of the high pressure level of the refrigerant circuit substantially by the expansion valve is made, the expansion machine has only the Task to provide the recovered energy in an appropriate form. So can the Drive shaft of the expansion machine, for example, directly to the drive shaft of the Refrigerant compressor be coupled or coupled. This is especially one advantageous development of the claimed expansion device, since the Speed of the expander expansion machine independent of the Control of the high pressure can be selected. An adaptation of the speed of the Expansion machine to the speed of the compressor can thus be done freely.
  • the generated Volume flow can be set arbitrarily, since it is no longer dependent on the regulation of High pressure levels of the refrigerant is affected.
  • the task of a regulation of Expansion machine for adjusting the high pressure level in the refrigerant circuit and the provision of the recoverable mechanical energy in an appropriate form advantageously no longer linked together. Because these two tasks are included Expansion machines of the prior art have different requirements for the Speed of the expansion machine have been complex solutions, such as a controllable transmission to achieve an additional Degrees of freedom.
  • An advantageous development of the expansion device according to the invention results in the event that the expander of the expander with a electrical machine, in particular with an electric generator operatively connected or is operatively connected.
  • the expansion valve of the Expansion device can set the optimum high pressure while the characteristic the expansion machine, for example, the characteristic of a conventional motor vehicle generator equivalent.
  • the regulation of the output voltage of the generator is by such Arrangement greatly simplified.
  • the freely selectable speed of the expansion machine of the claimed expansion device thus allows a constant Output voltage at the generator.
  • required Security functions are optimized.
  • a particularly advantageous embodiment of the device according to the invention results in that the expansion device or at least the expansion machine the expansion device in a structural unit with an electric machine, For example, a generator is designed. So it is possible to use both machine, d. H. Both the expansion machine, as well as the electric machine in one common housing, which typically forms a hermetic unit, to arrange.
  • inventive expansion device can be in Advantageously, an air conditioner, in particular a dynamically operated Further develop air conditioning for a motor vehicle.
  • an air conditioner in particular a dynamically operated Further develop air conditioning for a motor vehicle.
  • the inventive expansion device thus makes it possible to control a To simplify the expansion machine or to make such a regulation possible.
  • FIG. 1 in principle refrigerant circuit 10 of an air conditioner has a compressor 12, a condenser or gas cooler 14, an expansion device 16 and an evaporator 18, which via corresponding connecting means 20th are interconnected and form a closed refrigerant circuit.
  • the components of this circuit are operated in the manner of a compression refrigeration cycle.
  • a compression of a refrigerant such as the refrigerant CO 2 by a compressor, the so-called air compressor or simply compressor, carried out to increase the internal energy of the refrigerant.
  • the compressed refrigerant is then cooled in a condenser or condenser by heat exchange.
  • this heat exchanger 14 is referred to as gas cooler when using the supercritical operation of the refrigerant.
  • the thus cooled refrigerant is expanded by means of an expansion device 16 to a lower pressure and further cooled.
  • the expansion device 16 is usually followed by an evaporator 18, which is operated as a heat exchanger to transfer the released refrigerant of the refrigerant to another medium.
  • This other medium, which interacts with the cold, expanded refrigerant via the evaporator may be, for example, air which is supplied to a vehicle heating or cooling system (air conditioning system).
  • thermodynamic Circular process By controlling the throttling at the expansion device of Refrigerant circulation can be the pressure on the high pressure side of the thermodynamic Circular process can be controlled or regulated, so that the specific cooling capacity of the Air conditioning can be varied in the desired manner. So it is possible one to obtain maximum effective coefficient of performance by the pressure of the high pressure side of the Thermodynamic cycle (high pressure level) depending on the Temperature at the gas cooler outlet or the ambient temperature in an adapted manner is set.
  • thermodynamic Properties that release heat in the supercritical range can be the high pressure level be set at the heat emission regardless of the temperature.
  • additional To use degree of freedom in an advantageous manner can be controlled and / or regulated Expansion facilities are used.
  • Fig. 2 shows a first embodiment of a special refrigerant circuit for a Air conditioning system using an expansion device 16 according to the invention.
  • the refrigerant circuit 10 of a CO 2 air conditioning system has a compressor 12, which may be electrically operated, for example, or else driven by corresponding coupling elements of the internal combustion engine of a motor vehicle.
  • a compressor 12 first of all, compression of the refrigerant, in the case described CO 2 , is carried out in order to increase the internal energy of the refrigerant.
  • a separator in particular an oil separator 20 is provided, which serves to deposit the oil residues contained in the gaseous refrigerant and provide these via appropriate connecting means 22, for example, in turn, the compressor 12 for lubrication.
  • the compressed and possibly purified refrigerant is cooled in a downstream condenser or gas cooler 14 by a heat exchange and is doing a portion of its internal heat energy to the air conditioning, such as a vehicle, so that the temperature of the refrigerant drops and this possibly liquefied.
  • the air conditioning such as a vehicle
  • the refrigerant in the gas cooler 14 is not condensed but merely cooled, so that in this case one does not speak of a condenser but of a gas cooler.
  • an inner heat exchanger 24 is provided, which makes it possible compressed, cooled refrigerants by means of the returning and already expanded and cooled refrigerant continue to cool down.
  • the compressed refrigerant is now supplied to an expansion device 16 and in this expanded to a lower pressure level.
  • the inventive Expansion device 16 consists at least of a regulated expansion valve 26 and an expansion machine 36.
  • the expansion valve 26 is a adjustable valve, which by a corresponding position of the throttle body of the Valve can release a desired opening area and thus the Pressure level on the high pressure side of the refrigerant circuit 10 determined.
  • the Expansion valve 26 may, for example, an electromagnetically actuated valve or but also be a purely mechanically controlled, or a thermally controlled valve. This can be both an external, as well as an internally controlled valve act. be.
  • the controllable expansion valve 26 is followed by a Expansion machine 36, which in principle by every work Expansion device may be formed.
  • expansion machines are particularly conceivable and advantageous, so-called Gear machines, which effectively convert the expansion energy into mechanical Enable work.
  • the expansion machine can then be operatively connected to other downstream components of the motor vehicle or in a request case operatively connected.
  • the expansion process in the expansion device 16 more effective and at the same time regain expansion work.
  • the relaxation energy of the refrigerant is converted into mechanical work and thus made available for other processes.
  • the expansion machine 36 and the compressor 12 in a structural Unit be summarized.
  • the expansion device 16 consisting of at least the variable expansion valve 26 and the downstream expansion machine 36th as a compact module in a structural unit.
  • This carrier medium may be, for example, air, which is a vehicle Heating or cooling system (air conditioning), which is not shown in Fig. 2, in be supplied in a known manner.
  • a so-called collector 28 which serves as a liquid separator or storage.
  • a Collector 28 is particularly necessary if the filling of the evaporator 18th can not be regulated.
  • the collector 28 separates on the one hand after the Evaporator still in the refrigerant existing liquid components and collects this example, in its lower part.
  • the collector also has the task of Store refrigerant in order to compensate for small leaks in the system can. With the help of the collector can also small unevenness of the mass flow of the refrigerant can be compensated. These occur, for example, in a Speed increase of the compressor. This increases the mass flow of Refrigerant, without first the evaporator 18 can evaporate more refrigerant.
  • Fig. 3 shows an alternative embodiment of the expansion device according to the invention 16 of a refrigerant circuit 10.
  • the expansion device 16 according to the Embodiment of Fig. 3 has at least one controllable expansion valve 26 as well an expansion machine 36.
  • the Expansion valve 26 and the expansion machine 36 parallel to each other in Refrigerant circuit 10 is arranged.
  • This arrangement can be in an advantageous manner Way through a compact module 30 realize.
  • the parallel connection of Expansion machine 36 and the expansion valve 26 allows the Dimensioning of the expansion machine 36 simplify. This can be in this case then be designed only for a common mass flow. Should, however, increased Mass flows occur, so they can be derived with the help of the expansion valve become. In this way is a compact and simple expansion machine usable.
  • the parallel circuit according to the embodiment in Fig. 3 also means a not insignificant advantage for the safety of the refrigeration system.
  • the Expansion machine 36 may place the expansion valve 26 in an "emergency stop mode". be regulated, which allows a safe shutdown of the refrigeration system.
  • FIG. 3 shows the previously described refrigeration cycle according to FIG. 2.
  • the two presented refrigeration cycles and especially the two Expander 16 of these refrigeration circuits is meant that part of the Control tasks of the expansion device 16 of the expansion machine 36 the expansion valve 26 is transmitted.
  • the expansion machine 36 thus only has the task of providing the recoverable energy in the desired form.
  • the regulation of the high pressure level in the refrigeration cycle 10 and thus the determination of Cooling capacity or the efficiency of the air conditioner is in an advantageous manner taken over the expansion valve 26.
  • FIG. 4 shows another embodiment of a refrigerant circuit 10 for a inventive air conditioning.
  • the refrigeration cycle 10 corresponds according to the embodiment of Fig. 4 the previously described refrigeration cycle after 3, so that at this point only to the corresponding description of Figure 3 is referenced.
  • the expansion device 16 of the refrigeration cycle in the embodiment according to Figure 4 as an expansion valve overflow valve 27, which at a predetermined Mass flow of the refrigerant, or at a corresponding pressure of the refrigerant opens to a throttle body of the valve.
  • the throttle body of the overflow valve 27th This is due to the pressure of the refrigerant applied to the inlet side of the valve placed against the force, for example a spring-elastic element. this makes possible the adjustment of the pressure level on the high pressure side of the refrigerant circuit easy way. Elaborate and therefore cost-intensive electronically controlled Expansion organs can be avoided in this case.
  • the overflow valve 27 may be formed, for example, as a sliding seat valve.
  • a sliding seat valve By modifying the gap geometry of a conventional sliding seat valve leaves the tightness of such a valve significantly improve.
  • the gap geometry between the valve piston (Slide element) and piston guide (seat of the slide) of the sliding seat valve be optimized.
  • Such a modification allows the use of the Sliding seat valve as an expansion element in an air conditioning system, allowing a good Controllability with a total of low-noise operation in all operating conditions allows becomes.
  • the overflow valve 27 is not on the design of a sliding seat valve limited.
  • inventive refrigerant circuit of an air conditioner or the Expansion device for a refrigerant according to the invention are not on the in the Drawing illustrated embodiments limited.
  • the air conditioning system according to the invention is not based on the use of a limited internal heat exchanger in the refrigerant circuit.
  • the erfmdungshiele expansion device and the corresponding air conditioning is not limited to the use of CO 2 as a refrigerant.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
EP05102289A 2004-05-14 2005-03-22 Dispositif pour l'expansion d'un réfrigérant Withdrawn EP1596140A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004023834 2004-05-14
DE102004023834A DE102004023834A1 (de) 2004-05-14 2004-05-14 Expansionseinrichtung für ein Kältemittel

Publications (2)

Publication Number Publication Date
EP1596140A2 true EP1596140A2 (fr) 2005-11-16
EP1596140A3 EP1596140A3 (fr) 2010-04-28

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EP (1) EP1596140A3 (fr)
JP (1) JP2005326145A (fr)
DE (1) DE102004023834A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103604239A (zh) * 2013-11-15 2014-02-26 杭州锦华气体设备有限公司 一种大型冷库气体膨胀制冷***及其制冷方法
CN104246393A (zh) * 2012-04-23 2014-12-24 三菱电机株式会社 冷冻环路***
US20190049156A1 (en) * 2013-03-14 2019-02-14 Rolls-Royce Corporation Thermal management system controlling dynamic and steady state thermal loads

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005058890B4 (de) * 2005-12-09 2007-08-30 Festo Ag & Co. Klimaanlage eines Kraftfahrzeugs
FR2895786B1 (fr) * 2006-01-04 2008-04-11 Valeo Systemes Thermiques Module de detente pour installation de climatisation a deux evaporateurs
DE102006033747B3 (de) * 2006-07-21 2008-01-10 Thomas Magnete Gmbh Ventilanordnung
DE102008041939A1 (de) * 2008-09-10 2010-03-11 Ago Ag Energie + Anlagen Verfahren zum Betreiben einer Wärmepumpe oder Kältemaschine bzw. einer Kraftmaschine sowie Wärmepumpe oder Kältemaschine und Kraftmaschine
DE102012014967A1 (de) * 2012-07-30 2014-01-30 Isabelle Oelschlägel D.I.O. -device to intelligente generate own electricity Integrierte Vorrichtung zur Stromgewinnung während des Betriebes einer Wärme- bzw. Kältemaschine.

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0787891A2 (fr) * 1996-01-31 1997-08-06 Carrier Corporation Production d'énergie mécanique par l'expansion d'un liquide en vapeur
JP2000234814A (ja) * 1999-02-17 2000-08-29 Aisin Seiki Co Ltd 蒸気圧縮式冷凍装置
DE10010864A1 (de) * 1999-03-15 2000-09-21 Denso Corp Kältekreislaufsystem mit Expansionsenergie-Rückgewinnung
EP1046869A1 (fr) * 1999-04-20 2000-10-25 Sanden Corporation Système de réfrigération et d'air conditionné
JP2002022298A (ja) * 2000-07-04 2002-01-23 Matsushita Electric Ind Co Ltd 冷凍サイクル装置とその制御方法
JP2003074999A (ja) * 2001-08-31 2003-03-12 Daikin Ind Ltd 冷凍機
JP2003121018A (ja) * 2001-10-09 2003-04-23 Daikin Ind Ltd 冷凍装置
JP2003279179A (ja) * 2002-03-26 2003-10-02 Mitsubishi Electric Corp 冷凍空調装置
EP1416232A1 (fr) * 2002-10-31 2004-05-06 Matsushita Electric Industrial Co., Ltd. Méthode pour déterminer la haute pression dans un système frigorifique

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0787891A2 (fr) * 1996-01-31 1997-08-06 Carrier Corporation Production d'énergie mécanique par l'expansion d'un liquide en vapeur
JP2000234814A (ja) * 1999-02-17 2000-08-29 Aisin Seiki Co Ltd 蒸気圧縮式冷凍装置
DE10010864A1 (de) * 1999-03-15 2000-09-21 Denso Corp Kältekreislaufsystem mit Expansionsenergie-Rückgewinnung
EP1046869A1 (fr) * 1999-04-20 2000-10-25 Sanden Corporation Système de réfrigération et d'air conditionné
JP2002022298A (ja) * 2000-07-04 2002-01-23 Matsushita Electric Ind Co Ltd 冷凍サイクル装置とその制御方法
JP2003074999A (ja) * 2001-08-31 2003-03-12 Daikin Ind Ltd 冷凍機
JP2003121018A (ja) * 2001-10-09 2003-04-23 Daikin Ind Ltd 冷凍装置
JP2003279179A (ja) * 2002-03-26 2003-10-02 Mitsubishi Electric Corp 冷凍空調装置
EP1416232A1 (fr) * 2002-10-31 2004-05-06 Matsushita Electric Industrial Co., Ltd. Méthode pour déterminer la haute pression dans un système frigorifique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ROBINSON D M ET AL: "Efficiencies of transcritical CO2 cycles with and without an expansion turbine - Rendement de cycles transcritiques au CO2 avec et sans turbine d'expansion" INTERNATIONAL JOURNAL OF REFRIGERATION, ELSEVIER, PARIS, FR, Bd. 21, Nr. 7, 1. November 1998 (1998-11-01), Seiten 577-589, XP004287371 ISSN: 0140-7007 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104246393A (zh) * 2012-04-23 2014-12-24 三菱电机株式会社 冷冻环路***
CN104246393B (zh) * 2012-04-23 2016-06-22 三菱电机株式会社 冷冻环路***
US20190049156A1 (en) * 2013-03-14 2019-02-14 Rolls-Royce Corporation Thermal management system controlling dynamic and steady state thermal loads
US11448432B2 (en) * 2013-03-14 2022-09-20 Rolls-Royce Corporation Adaptive trans-critical CO2 cooling system
CN103604239A (zh) * 2013-11-15 2014-02-26 杭州锦华气体设备有限公司 一种大型冷库气体膨胀制冷***及其制冷方法

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