WO2006057093A1 - 冷凍サイクル - Google Patents
冷凍サイクル Download PDFInfo
- Publication number
- WO2006057093A1 WO2006057093A1 PCT/JP2005/013229 JP2005013229W WO2006057093A1 WO 2006057093 A1 WO2006057093 A1 WO 2006057093A1 JP 2005013229 W JP2005013229 W JP 2005013229W WO 2006057093 A1 WO2006057093 A1 WO 2006057093A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- expansion valve
- valve
- mpa
- valve opening
- 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
- B60H1/321—Control means therefor for preventing the freezing of a heat exchanger
-
- 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
- F25B41/33—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure 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
- 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
-
- 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
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3248—Cooling devices information from a variable is obtained related to pressure
- B60H2001/3254—Cooling devices information from a variable is obtained related to pressure of the refrigerant at an expansion unit
-
- 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
- B60H2001/3269—Cooling devices output of a control signal
- B60H2001/328—Cooling devices output of a control signal related to an evaporating unit
- B60H2001/3283—Cooling devices output of a control signal related to an evaporating unit to control the refrigerant flow
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/01—Geometry problems, e.g. for reducing size
-
- 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
Definitions
- the present invention relates to a refrigeration cycle used in a vehicle air conditioner or the like, and particularly to a control mechanism for an expansion valve.
- Patent Document 3 Japanese Patent Laid-Open No. 9-264622
- Patent Document 2 JP 2002-520572 A
- Patent Document 3 Japanese Patent Application Laid-Open No. 2004-142701
- the present invention uses carbon dioxide as a refrigerant, and depends on the high-pressure side refrigerant pressure on the inlet side of the expansion valve and does not depend on the refrigerant temperature, and increases the high-pressure side refrigerant pressure.
- a refrigeration cycle comprising an adjusting means for increasing the valve opening of the expansion valve and decreasing the valve opening of the expansion valve with a decrease in the high-pressure side refrigerant pressure.
- the refrigerant pressure is 7.38 MPa
- the expansion valve has a valve opening corresponding to a pipe having an inner diameter of 0.2 to 0.5 mm
- the high-pressure refrigerant pressure is 14 MPa
- the expansion valve has an inner diameter of 0.
- the valve opening is equivalent to a pipe of 8 to 1.6 mm (Claim 1).
- the high-pressure side refrigerant pressure is 7.38 MPa, that is, a high COP (in the range of -10% of the optimum COP) in a situation where the critical pressure is exceeded. In)) can be realized.
- the refrigerant temperature is not using the refrigerant temperature as a factor for adjusting the valve opening, it is possible to suppress an excessive pressure rise in the high-pressure line without providing a relief valve.
- the adjusting means has an inner diameter of 0.2 to 0.5 mm when the high pressure side refrigerant pressure is 7.38 MPa or less. It is preferable to control the valve so that the valve opening is in the range corresponding to this pipe (Claim 2). [0009] This makes it possible to realize operation at a high COP (within a range of -10 to 20% of the optimum COP) even in a situation where the high-pressure side refrigerant pressure is equal to or lower than the critical pressure. Further, since the expansion valve is not fully closed, an excessive pressure rise in the high pressure line can be suppressed and a hunting phenomenon can be prevented.
- the present invention uses carbon dioxide as a refrigerant, and depends on the pressure difference between both refrigerant pressures on the inlet side and the outlet side of the expansion valve and does not depend on the refrigerant temperature.
- a refrigeration cycle comprising an adjusting means for increasing the valve opening of the expansion valve and decreasing the valve opening of the expansion valve as the differential pressure decreases, wherein the adjusting means has a differential pressure of 3
- the expansion valve has a valve opening corresponding to an inner diameter of 0.2 to 0.5 mm, and when the differential pressure is 11.52 MPa, the expansion valve has an inner diameter of 0.9 to 1.
- the valve opening is equivalent to a 9 mm pipe (Claim 3).
- valve opening degree by the differential pressure of the refrigerant on the inlet side and the outlet side of the expansion valve
- the configuration according to claim 1 wherein the valve opening degree is controlled based on the control line having the above characteristics.
- operation at high COP (within the range of -10% of optimum COP) can be realized in the region above the critical pressure.
- the adjusting means corresponds to a tube having an inner diameter of 0.2 to 0.5 mm when the differential pressure becomes 3.88 MPa or less. It is preferable to control so that the valve opening is within the range (Claim 4).
- the expansion valve By controlling the expansion valve based on the control line having the characteristics according to the present invention described above, the expansion valve is controlled depending only on the high-pressure side refrigerant pressure on the expansion valve inlet side or the differential pressure before and after the expansion valve. High and COP can be realized in a refrigeration cycle in which the valve opening changes.
- FIG. 1 is a diagram showing a configuration example of a refrigeration cycle in which the present invention is implemented.
- FIG. 2 is a view showing the structure of the expansion valve in the first embodiment.
- FIG. 3 is a graph showing a range in which effective control line group force of the expansion valve in Example 1 is also obtained. It is.
- Figure 4 shows an example of an air conditioner installed in a super large vehicle (LL vehicle) that falls within the range of -10% of the optimal COP calculated for various load and operating conditions. It is a graph which shows the range of the control line group of the expansion valve which concerns.
- LL vehicle super large vehicle
- FIG. 5 shows an expansion according to Example 1 that falls within 10% of the optimum COP calculated for various load conditions and operating conditions in an air conditioner mounted on a large vehicle (L vehicle). It is a graph which shows the range of the control line group of a tension valve.
- Fig. 6 shows the expansion according to Example 1 that falls within the range of -10% of the optimum COP calculated for various load conditions and operating conditions in an air conditioner mounted on a medium-sized vehicle (M vehicle). It is a graph which shows the range of the control line group of a valve.
- FIG. 7 shows an expansion according to Example 1 that falls within 10% of the optimum COP calculated for various load conditions and operating conditions in an air conditioner mounted on a small car (S car). It is a graph which shows the range of the control line group of a valve.
- FIG. 8 shows the relationship between the valve opening degree and the COP change rate in the region where the high-pressure side refrigerant pressure is 7.38 MPa or less in the expansion valve according to Example 1, with the load condition and operating condition changed. It is a graph to show.
- FIG. 9 is a view showing the structure of the expansion valve in the second embodiment.
- FIG. 10 is a diagram showing a range in which an effective control line group force of the expansion valve in the second embodiment is also obtained.
- Fig. 11 shows the expansion according to Example 2 that falls within the range of 10% of the optimum COP calculated for various load conditions and operating conditions in an air conditioner mounted on a very large vehicle (LL vehicle). It is a graph which shows the range of the control line group of a valve.
- FIG. 12 shows an expansion according to Example 2 that falls within 10% of the optimum COP calculated for various load conditions and operating conditions in an air conditioner mounted on a large vehicle (L vehicle). It is a graph which shows the range of the control line group of a valve.
- FIG. 13 shows an expansion according to Example 2 that falls within 10% of the optimum COP calculated for various load conditions and operating conditions in an air conditioner mounted on a medium-sized vehicle (M vehicle). It is a graph which shows the range of the control line group of a valve.
- FIG. 14 shows an expansion valve according to Example 2 that falls within 10% of the optimum COP calculated for various load conditions and operating conditions in an air conditioner mounted on a small car (S car). It is a graph which shows the range of these control line groups.
- FIG. 15 shows the relationship between the valve opening degree and the COP change rate in the region where the differential pressure is 3.88 MPa or less in the expansion valve according to Example 2, with the load condition and operating condition changed. It is a graph to show.
- a refrigeration cycle 1 shown in FIG. 1 is a supercritical compression type that is used in a vehicle air conditioner and uses carbon dioxide as a refrigerant.
- This refrigeration cycle 1 includes a compressor 2 that compresses refrigerant, a gas cooler 3 that cools the compressed refrigerant by heat exchange with outside air, and an internal heat exchange that exchanges heat between the high-pressure line H and the low-pressure line L. 4, high pressure line ⁇ refrigerant And an evaporator 6 that evaporates the decompressed refrigerant by heat exchange with the conditioned air.
- the expansion valve 5 in this embodiment includes a shell 10, a bellows 11, a valve body 12, a valve seat 13, a spring 15, and an opening hole 16.
- the shell 10 has a hollow portion 17 formed therein, and has a high-pressure side communication hole 18 and a low-pressure side communication hole 19 that connect the hollow portion 17 and the outside.
- the high-pressure side communication hole 18 is a high-pressure line H of the refrigeration cycle 1. (See Fig. 1) and the low-pressure side communication hole 19 communicates with the low-pressure line L.
- the bellows 11 is a bellows-like member formed of a metal foil or the like, and is disposed in the hollow portion 17, and one end side thereof is fixed to the inner upper surface of the shell 10.
- the valve body 12 is fixed to the other end side of the bellows 11 and is displaced up and down in the drawing as the bellows 11 expands and contracts.
- the valve seat 13 is provided in the low-pressure side communication hole 19 and has a shape that allows the valve body 12 to be fitted (seatted).
- the spring 15 is arranged inside the bellows 11 and has one end fixed to the inner upper surface of the shell 10 and the other end fixed to the lower end of the bellows 11 (the upper end of the valve body 12). Acts to prevent 11 reduction.
- the open hole 16 is formed in the upper surface of the shell 10 and communicates the inside of the bellows 11 with the atmosphere. In the present embodiment, no special gas is sealed inside the bellows 11, and because of the open holes 16, the internal pressure is substantially the same as the atmospheric pressure.
- the bellows 11 is not affected by the volume change of the internal gas due to the opening hole 16, so that the combined force of the resistance force of the bellows 11 itself and the repulsive force of the spring 15 It expands and contracts depending only on the relationship with the pressure of the refrigerant flowing into the space 17.
- the valve opening degree of the expansion valve 5 can be changed only in response to the change in the high-pressure side refrigerant pressure.
- it has the advantage of eliminating the need for gas sealing and maintenance inside the bellows 11.
- the valve opening degree of the expansion valve 5 that is effective in the present embodiment is adjusted based on one control line A that falls within the range S shown in FIG. 3 as an example.
- the valve opening is represented by the inner diameter of the virtual pipe. That is, the opening area of the throttle passage formed between the valve body 12 and the valve seat 13 of the expansion valve 5 corresponds to the opening area of the virtual pipe (when the virtual pipe inner diameter is 0.2 mm, The opening area of the throttle passage is approximately 0.1256 mm 2 ) In the region where the field pressure is 7.38 MPa or higher, the valve opening is 7.0.2 to 0.5 mm when the high-pressure refrigerant pressure is 7.38 MPa, and the valve opening when the high-pressure refrigerant pressure is 14 MPa.
- control line group in which the valve opening is in the range of 0.2 to 0.5 mm in the range of 0.8 to 1.6 mm and the high-pressure side refrigerant pressure is within the critical pressure of 7.38 MPa or less. It will be. In this example, the upper limit of the high-pressure side refrigerant pressure is 18 MPa.
- the control line can be set by selecting the spring constant of the spring 15.
- FIGS. Figure 4 shows the range of the control line group of the expansion valve that falls within 10% of the optimum COP calculated for various load conditions and operating conditions in an air conditioner mounted on a super large vehicle (LL vehicle). Is shown.
- the white squares are the optimum COP values obtained under each load condition and operating condition, and the two black squares connected to each white square by two lines are It shows the COP range of -10% from the optimum value.
- the outside air temperature was changed in the range of 20 to 45 ° C as the load condition change in the experiment, the outside air introduction or internal circulation mode was switched as the operating condition, and the compressor rotation speed was changed from low speed to high speed. .
- Fig. 5 shows the range S1 of the control line group of the expansion valve that falls within 10% of the optimum COP under the same conditions as in Fig. 4 in the air conditioner mounted on a large vehicle (L vehicle). It is shown.
- Fig. 6 shows the range Sm of the control line group of the expansion valve that falls within 10% of the optimum COP under the same conditions as in Fig. 4 above for the air conditioner mounted on the medium-sized vehicle (M vehicle).
- M vehicle medium-sized vehicle
- Fig. 7 shows the range Ss of the control line group of the expansion valve that is within the range of 10% of the optimum COP under the same conditions as in Fig. 4 in the air conditioner installed in the small car (S car). It is.
- the range S shown in FIG. 3 described above includes all the ranges Sll, SI, Sm, and Ss shown in FIGS. Therefore, by adjusting the valve opening degree of the expansion valve 5 based on the control line that falls within the range S, a high COP can be realized for any size vehicle. Furthermore, the expansion valve 5 according to the present embodiment maintains a valve opening range of 0.2 to 0.5 mm in the region where the high-pressure side refrigerant pressure is 7.38 MPa or less. This can be realized by, for example, integrally forming the shell 10 and the valve body 12 with a means for preventing the movement of the valve body 12 in the direction of the valve seat 13 at a position where the seating position force is maintained at a predetermined distance. (For example, see Patent Document 3 and FIG.
- FIG. 8 shows the relationship between the valve opening and the COP change rate in the region where the high-pressure side refrigerant pressure is 7.38 MPa or less with the load condition and operating condition changed.
- line H shows the transition when the outside air temperature is 15 ° C, the outside air introduction mode, and the compressor rotation speed is 800 rpm
- line I shows the outside air temperature when the outside air introduction mode and the compressor rotation speed are 14 OOrpm.
- Transition line H shows the transition when the outside air temperature is 15 ° C, the outside air introduction mode, and the compressor speed is 2600 rpm.
- the expansion valve 5 having the mechanical structure shown in FIG. 2 is shown.
- the present invention is not limited to this, and an electromagnetic valve, a pressure sensor, a predetermined
- the ECU may be configured to operate according to the program.
- the refrigeration cycle 1 uses an expansion valve 25 shown in Fig. 9 instead of the expansion valve 5 according to the first embodiment.
- the expansion valve 25 includes a shell 26, a valve body 27, a valve seat 28, and a spring 29.
- the shell 26 has a hollow portion 32 formed therein, and has a high-pressure side communication hole 30 and a low-pressure side communication hole 31 that connect the hollow portion 32 and the outside.
- the high-pressure side communication hole 30 is connected to the high-pressure line H and the low-pressure side.
- the communication hole 31 communicates with the low pressure line L.
- the valve body 27 is fixed to one end side of the spring 29 and is displaced by receiving both the pressure of the high pressure line H and the pressure of the low pressure line L.
- the valve seat 28 is provided in the high-pressure side communication hole 30 and has a shape that allows the valve element 27 to be fitted (seatted).
- the other end of the spring 29 is fixed to the inner wall surface of the shell 26 and biases the valve element 27 fixed to one end in the seating direction.
- the valve element 27 includes the high-pressure side refrigerant pressure and the low-pressure side refrigerant pressure. And it is displaced by the resultant force of the repulsive force of the spring 29. As a result, the opening degree of the expansion valve 25 can be changed only in response to a change in the differential pressure between the high-pressure side refrigerant pressure and the low-pressure side refrigerant pressure.
- the expansion valve 25 is adjusted based on a single control line that falls within a range S 'shown in FIG.
- the valve opening is represented by the inner diameter of the virtual pipe. That is, the opening area force of the throttle passage formed between the valve body 27 and the valve seat 28 of the expansion valve 25 corresponds to the opening area of the virtual pipe.
- the range S ' when the differential pressure is 3.88 MPa or more, the valve opening is within the range of 0.2 to 0.5 mm when the differential pressure is 3.88 MPa, and the differential pressure is 11.52 MPa.
- the valve opening is in the range of 0.9 to 1.9 mm and the differential pressure is 3.88 MPa or less, the valve opening is in the range of 0.2 to 0.5 mm.
- the control line can be set by selecting the spring constant of the spring 29.
- FIGS. Figure 11 shows the range of expansion valve control lines that fall within 10% of the optimum COP calculated for various load conditions and operating conditions in an air conditioner mounted on a super large vehicle (LL vehicle). Is shown.
- the white squares are the optimum COP values obtained under each load condition and operating condition, and each black square is connected to the white square by two lines. Indicates a COP range of -10% from the optimum value.
- the load conditions in the experiment the outside air temperature was changed in the range of 20 to 45 ° C, the outside air introduction or internal circulation mode was switched as the operating condition, and the compressor rotation speed was changed from low speed to high speed. From this experimental data, it was derived that control lines that fall within the range of -10% from the optimal value of COP should be within the range of sir. This data is the result in the region where the differential pressure is 3.88 MPa or more.
- Fig. 12 shows the range of the control line group of the expansion valve that falls within -10% of the optimum COP under the same conditions as in Fig. 11 above for the air conditioner mounted on a large vehicle (L vehicle).
- Fig. 13 shows the range Sm 'of the control line group of the expansion valve that falls within 10% of the optimum COP under the same conditions as in Fig. 11 above for the air conditioner mounted on the medium-sized vehicle (M vehicle). It is shown.
- Fig. 14 shows an expansion valve control line that fits within 10% of the optimum COP under the same conditions as in Fig. 11 above for an air conditioner installed in a small car (S car). It shows the range Ss' of the group.
- the above-described range S ′ shown in FIG. 10 includes all the ranges S11 ′, SI ′, Sm ′, and Ss ′ shown in FIGS. Therefore, by adjusting the opening degree of the expansion valve 25 based on the control line that falls within the range S ′, a high COP can be realized for any size vehicle.
- the expansion valve 25 maintains a valve opening range of 0.2 to 0.5 mm in a region where the differential pressure is 3.88 MPa or less.
- Figure 15 shows the relationship between the valve opening and the COP change rate in the region where the differential pressure is 3.88 MPa or less, with the load and operating conditions changed.
- line P shows the change when the outside air temperature is 15 ° C, the outside air introduction mode, and the compressor rotation speed is 800 rpm
- line Q shows the change when the outside air temperature is 15 ° C, the outside air introduction mode, and the compressor rotation speed is 1400 rpm
- Line R shows the transition when the outside air temperature is 15 ° C, the outside air introduction mode, and the compressor rotation speed is 2600 rpm.
- the expansion valve 25 having the mechanical structure shown in FIG. 9 is shown, but the present invention is not limited to this, and is not limited to this.
- the ECU may be configured according to the program.
- the structure can be simplified and the cost can be reduced, and a refrigeration cycle that operates at a high COP can be provided for any size vehicle.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05766131.6A EP1832819A4 (en) | 2004-11-26 | 2005-07-19 | REFRIGERATION CYCLE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004341578A JP2006153314A (ja) | 2004-11-26 | 2004-11-26 | 冷凍サイクル |
JP2004-341578 | 2004-11-26 |
Publications (1)
Publication Number | Publication Date |
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WO2006057093A1 true WO2006057093A1 (ja) | 2006-06-01 |
Family
ID=36497839
Family Applications (1)
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PCT/JP2005/013229 WO2006057093A1 (ja) | 2004-11-26 | 2005-07-19 | 冷凍サイクル |
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EP (1) | EP1832819A4 (ja) |
JP (1) | JP2006153314A (ja) |
WO (1) | WO2006057093A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007051118A1 (de) | 2007-10-24 | 2009-04-30 | Konvekta Ag | Expansionsventil |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3014756B1 (fr) * | 2013-12-13 | 2017-02-17 | Valeo Systemes Thermiques | Procede de conditionnement thermique d'un habitacle d'un vehicule automobile |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001174076A (ja) * | 1999-10-08 | 2001-06-29 | Zexel Valeo Climate Control Corp | 冷凍サイクル |
JP2004142701A (ja) * | 2002-10-28 | 2004-05-20 | Zexel Valeo Climate Control Corp | 冷凍サイクル |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001280758A (ja) * | 2000-03-30 | 2001-10-10 | Zexel Valeo Climate Control Corp | 超臨界蒸気圧縮サイクル装置用逃し弁 |
DE10305947A1 (de) * | 2003-02-12 | 2004-08-26 | Robert Bosch Gmbh | Expansionsorgan für eine Klimaanlage |
-
2004
- 2004-11-26 JP JP2004341578A patent/JP2006153314A/ja active Pending
-
2005
- 2005-07-19 WO PCT/JP2005/013229 patent/WO2006057093A1/ja active Application Filing
- 2005-07-19 EP EP05766131.6A patent/EP1832819A4/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001174076A (ja) * | 1999-10-08 | 2001-06-29 | Zexel Valeo Climate Control Corp | 冷凍サイクル |
JP2004142701A (ja) * | 2002-10-28 | 2004-05-20 | Zexel Valeo Climate Control Corp | 冷凍サイクル |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007051118A1 (de) | 2007-10-24 | 2009-04-30 | Konvekta Ag | Expansionsventil |
DE102007051118B4 (de) | 2007-10-24 | 2021-11-11 | Konvekta Ag | Expansionsventil |
Also Published As
Publication number | Publication date |
---|---|
EP1832819A4 (en) | 2014-10-22 |
EP1832819A1 (en) | 2007-09-12 |
JP2006153314A (ja) | 2006-06-15 |
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