EP1801521A2 - Pressure reduce module with oil seperator - Google Patents
Pressure reduce module with oil seperator Download PDFInfo
- Publication number
- EP1801521A2 EP1801521A2 EP06126919A EP06126919A EP1801521A2 EP 1801521 A2 EP1801521 A2 EP 1801521A2 EP 06126919 A EP06126919 A EP 06126919A EP 06126919 A EP06126919 A EP 06126919A EP 1801521 A2 EP1801521 A2 EP 1801521A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- passage
- refrigerant
- pressure reducer
- lubricant
- oil separator
- 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- Withdrawn
Links
Images
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
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from 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
- 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
- F25B2341/068—Expansion valves combined with a sensor
- F25B2341/0683—Expansion valves combined with a sensor the sensor is disposed in the suction line and influenced by the temperature or the pressure of the suction gas
-
- 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
- F25B2400/02—Centrifugal separation of gas, liquid or oil
-
- 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
- F25B40/00—Subcoolers, desuperheaters or superheaters
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
Definitions
- compressor 2 may compress the refrigerant
- radiator 3 may radiate the refrigerant and reduce a temperature of the refrigerant received from compressor 2
- evaporator 5 may a evaporate the refrigerant received from pressure reducer module with oil separator 4
- gas/liquid separator 6 may separate a gas portion of the refrigerant from a liquid portion of the refrigerant received from evaporator 5
- inside heat exchanger 7 may exchange heat between the refrigerant sent from radiator 3 and the refrigerant sent from gas/liquid separator 6
Landscapes
- 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)
- Fluid Mechanics (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
Description
- The present invention relates generally to a pressure reducer module with oil separator configured to be used in a vapor compression refrigerating system.
- In a known vapor compression refrigerating system, such as the vapor compression refrigerating system described in
Japanese Patent Publication No. JP-A-11-193967 - In one known method for increasing the efficiency of the refrigerating system, the amount of lubricant included in the refrigerant circulated in the refrigerating system is reduced to prevent the reduction of the coefficient of heat transfer at the evaporator. Specifically, reducing the amount of lubricant which flows into the evaporator accelerates the heat transfer of the evaporator, which increases the efficiency of the refrigerating system.
- Fig. 6 depicts a known refrigerating
system 101. Refrigeratingsystem 101 comprises acompressor 102, aradiator 103 for cooling refrigerant which flows fromcompressor 102, aninside heat exchanger 105 for exchanging heat between a high-temperature refrigerant which flows fromradiator 103 and a low-temperature refrigerant which flows from anaccumulator 104. Insideheat exchanger 105 functions as a gas/liquid separator and supplies the refrigerant tocompressor 102 after the exchange of heat between the high-temperature refrigerant and the low-temperature refrigerant. Refrigeratingsystem 101 also comprises apressure reducer 106 for reducing the pressure of refrigerant which flows fromheat exchanger 105, anevaporator 107 for evaporating refrigerant which flows frompressure reducer 106, andaccumulator 104 for storing gas/liquid two phase refrigerant fromevaporator 107 and for supplying gas-phase refrigerant to the inside ofheat exchanger 105. - Therefore, a need has arisen for vapor compression refrigerating systems which overcome these and other shortcomings of the related art. A technical advantage of the present invention is that a pressure reducer module may comprise an oil separator and may be configured to transmit a refrigerant to an evaporator while allowing a lubricant to bypass the evaporator, which substantially reduces the amount of lubricant flowing into the evaporator, which increases the efficiency of the refrigerating system by increasing the coefficient of heat transfer of the evaporator. Another technical advantage of the present invention may be obtained by providing a pressure reducer module with oil separator which may reduce the number of coupling portions and reduce the weight and the cost of the system when the system.
- According to an embodiment of the present invention, a pressure reducer module comprises an oil separator configured to receive a lubricant and a refrigerant and to separate the lubricant from the refrigerant. The pressure reducer module also comprises a pressure reducer connected to and formed integral with the oil separator. The pressure reducer is configured to receive the refrigerant from the oil separator and to reduce a pressure of the refrigerant.
- Other objects, features, and advantage will be apparent to persons of ordinary skill in the art from the following detailed description of the invention and the accompanying drawings.
- For a more complete understanding of the present invention, needs satisfied thereby, and the objects, features, and advantages thereof, reference now is made to the following description taken in connection with the accompanying drawings.
- Fig. 1 is a circuit diagram of a vapor compression refrigerating system having a pressure reducer module with oil separator, according to an embodiment of the present invention.
- Fig. 2 is a vertical, sectional view of a pressure reducer module with oil separator, according to an embodiment of the present invention.
- Fig. 3 is a cross-sectional view of the pressure reducer module with oil separator of Fig. 2, as viewed along line A-A.
- Fig. 4 is a Mollier chart of the vapor compression refrigerating system of Fig. 1.
- Fig. 5 is a vertical, sectional view of a pressure reducer module with oil separator, according to another embodiment of the present invention.
- Fig. 6 is a circuit diagram of a known vapor compression refrigerating system.
- Embodiments of the present invention, and their features and advantages, may be understood by referring to Figures 1-5, like numerals being used for like corresponding parts in the various drawings.
- Fig. 1 depicts a vapor compression refrigerating system having a pressure reducer module with oil separator, according to an embodiment of the present invention. The refrigerating system 1 may use a natural-system refrigerant, such as carbon dioxide. In this embodiment, the refrigerating system 1 may comprise a
compressor 2, aradiator 3 connected tocompressor 2, aninside heat exchanger 7 connected toradiator 3 and tocompressor 2, and a pressure reducer module withoil separator 4 connected to insideheat exchanger 7. The refrigerating system also may comprise an evaporator 5 connected to pressure reducer module withoil separator 4, and a gas/liquid separator 6 connected to the evaporator 5 and to insideheat exchanger 7. In the refrigeration system, the connections between the various components may be made via a tube 1. - In operation,
compressor 2 may compress the refrigerant,radiator 3 may radiate the refrigerant and reduce a temperature of the refrigerant received fromcompressor 2, evaporator 5 may a evaporate the refrigerant received from pressure reducer module withoil separator 4, gas/liquid separator 6 may separate a gas portion of the refrigerant from a liquid portion of the refrigerant received from evaporator 5, and insideheat exchanger 7 may exchange heat between the refrigerant sent fromradiator 3 and the refrigerant sent from gas/liquid separator 6 - Figs. 2 and 3 depict an exemplary pressure reducer module with
oil separator 4, according to an embodiment of the present invention. In this example, refrigerant and a lubricant, e.g., oil, flow fromheat exchanger 7 into pressure reducer module withoil separator 4 via a high pressureside refrigerant inlet 8, and only refrigerant flows to evaporator 5 via a high pressure side refrigerant outlet 9. Refrigerant also flows from evaporator 5 into pressure reducer module withoil separator 4 via a low pressureside refrigerant inlet 10, and refrigerant and lubricant separated on the high pressure side flows out of pressure reducer module withoil separator 4 via a low pressureside refrigerant outlet 11. A high pressureside refrigerant passage 19 and a low pressureside refrigerant passage 20 are formed in amodule body 18, e.g., a block, and pressure reducer module withoil separator 4 may be handled and attached as a single part. - The operation will be explained for the refrigerating system where the refrigerant at the high pressure side inlet is operated as a liquid phase, as depicted in Fig. 4 as a Mollier chart. With respect to the route of the refrigerant and the lubricant in pressure reducer module with
oil separator 4, first, the refrigerant and lubricant pass through afilter 15 provided for trapping foreign matters circulated in the refrigerating system, and then flow into anoil separator 12. The refrigerant and lubricant revolve inoil separator 12 and agitate the interior ofoil separator 12. At that time, because the specific gravity of lubricant is greater than that of refrigerant, the refrigerant and lubricant separate from each other by centrifugal separation. Specifically, the lubricant is gathered at the side of the inner wall surface, flows down along the inner wall surface by gravity, and is stored at a portion adjacent to the bottom surface. The liquid refrigerant passes through the interior of a pipe provided inoil separator 12, flows out from the oil separator, has its pressure reduced by apressure reducer 13 and is turned into a two-phase condition, and it flows out from high pressure side refrigerant outlet 9. In this example,pressure reducer 13 may be a variable pressure reducer, and may adjust a degree of pressure reduction by pressure reducingmovable part 16 andspring 17. Moreover, the separation of lubricant is carried out at point A in the Mollier chart depicted in Fig. 4 or in the vicinity thereof. - The lubricant that is stored adjacent to the bottom surface of
oil separator 12 flows from a high pressureside refrigerant passage 19 to a low pressureside refrigerant passage 20 through alubricant passage 14 by a pressure difference betweenpassages side refrigerant outlet 11. Therefore, the separated lubricant is substantially sent to gas/liquid separator 6 and tocompressor 2 bypassing evaporator 5, as depicted in Fig. 1. Moreover,lubricant passage 14 may have a small hole shape, such that high pressure side refrigerant does not easily flow out to low pressureside refrigerant passage 20, and such that only lubricant is easily flowed out from high pressureside refrigerant passage 19 to low pressureside refrigerant passage 20. Further, low pressureside refrigerant passage 20 is inclined frominlet 10 towardoutlet 11 to prevent the reverse flow of lubricant which flows fromlubricant passage 14 from the low pressureside refrigerant entrance 10 to evaporator 5. - Fig. 5 depicts another example of a pressure reducer module with oil separator. In this embodiment, a pressure reducer is disposed before an oil separator. In operation, refrigerant and a lubricant flow into pressure reducer module with
oil separator 4 from high pressureside refrigerant inlet 8, and after being reduced in pressure atpressure reducer 13, flows intooil separator 12 which separates the refrigerant from the lubricant. The refrigerant then flows through a pipe inoil separator 12 from the oil separator outlet to high pressure side refrigerant outlet 9, and the lubricant is stored adjacent to the bottom surface inoil separator 12, flows down from high pressureside refrigerant passage 19 to low pressureside refrigerant passage 20 throughlubricant passage 14, and flows from low pressureside refrigerant outlet 11 with the low pressure side refrigerant. In this example depicted in Fig. 5, the separation of lubricant is carried out at point B in the Mollier chart depicted in Fig. 4 or the vicinity thereof. - In the above-described examples,
pressure reducer 13 may comprise a mechanism for determining a degree of pressure reduction based on information concerning a condition of the refrigerating system. In one embodiment, the condition of the refrigerating system may be a pressure difference of refrigerant between the inlet and the outlet of the pressure reducer.Pressure reducer 13 depicted in Fig. 2 comprises such a mechanism, in which pressure reducingmovable part 16 moves by a balance between the inlet refrigerant pressure ofpressure reducer 13 and the urging force ofspring 17, thereby changing the cross-sectional area of refrigerant passage and adjusting the degree of pressure reduction. - Where, the mechanism for adjusting the degree of pressure reduction of the pressure reducer may be a mechanism for determining the degree of pressure reduction univocally from refrigerant pressure, refrigerant temperature, etc. of the refrigerating system. Further, the mechanism may be a mechanism formed by attaching a solenoid valve to a pressure reducing degree adjusting mechanism for determining a degree of pressure reduction based on information concerning refrigerant pressure, refrigerant temperature, air temperature at the exit of the evaporator, etc.
- Further, the portion of the main body of pressure reducer module with
oil separator 4 may be formed, such that the high pressure side refrigerant inlet and the high pressure side refrigerant outlet for forming the high pressure side refrigerant passage, and the low pressure side refrigerant inlet and the low pressure side refrigerant outlet for forming the low pressure side refrigerant passage, are disposed on a single structural body, and by this structure, the connection of pipes 1 may be facilitated. - The pressure reducer module with oil separator according to the present invention may be used in a vapor compression refrigerating system for compressing and expanding refrigerant, and particularly, may be used a vapor compression refrigerating system using carbon dioxide as a refrigerant, such as a refrigerating system used in an air conditioning system for a vehicle.
Claims (9)
- A pressure reducer module comprising:an oil separator configured to receive a lubricant and a refrigerant and to separate the lubricant from the refrigerant; anda pressure reducer connected to and formed integral with the oil separator, wherein the pressure reducer is configured to receive the refrigerant from the oil separator and to reduce a pressure of the refrigerant.
- The pressure reducer module of claim 1. further comprising:a first passage coupled to an inside heat exchanger, wherein the oil separator and the pressure reducer are positioned within the first passage, and the first passage is configured to receive the refrigerant and the lubricant from the inside heat exchanger, to transmit the refrigerant and lubricant to the oil separator, and to transmit the refrigerant to the pressure reducer;a second passage coupled to an evaporator, wherein the second passage is configured to receive the refrigerant from the evaporator after the refrigerant flows from the pressure reducer to the evaporator; anda lubricant passage connected to the first passage and the second passage, wherein the lubricant passage is configured to introduce the lubricant from the oil separator to the second passage.
- The pressure reducer module of claim 2, wherein the second passage comprises a second passage inlet coupled to the evaporator and a second passage outlet, wherein the second passage is slanted, such the second passage inlet is positioned above the second passage outlet and the lubricant introduced into the second passage flows toward the second passage outlet.
- The pressure reducer module of claim 2, further comprising a filter, wherein the first passage comprises a first passage inlet and a first passage outlet, the filter is positioned between the first passage inlet and the first passage outlet, and the filter is configured to substantially prevent foreign matter from passing through the first passage.
- The pressure reducer module of claim 1, wherein the pressure reducer has a mechanism which determines a degree of pressure reduction based on information concerning a condition of the vapor compression refrigerating system.
- The pressure reducer module of claim 1, wherein the first passage inlet, the second passage inlet, the first passage outlet, and the second passage outlet are formed in a single block.
- The pressure reducer module of claim 1, wherein the refrigerant comprises carbon dioxide.
- A vapor compression refrigerating system comprising the pressure reducer module of claim 1.
- An air conditioning system comprising the vapor compression refrigerating system of claim 8.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005372735A JP4694365B2 (en) | 2005-12-26 | 2005-12-26 | Pressure reducer module with oil separator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1801521A2 true EP1801521A2 (en) | 2007-06-27 |
EP1801521A3 EP1801521A3 (en) | 2008-02-13 |
Family
ID=37891789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06126919A Withdrawn EP1801521A3 (en) | 2005-12-26 | 2006-12-21 | Pressure reduce module with oil seperator |
Country Status (3)
Country | Link |
---|---|
US (1) | US20070144206A1 (en) |
EP (1) | EP1801521A3 (en) |
JP (1) | JP4694365B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017182516A1 (en) * | 2016-04-19 | 2017-10-26 | OET GmbH | Separator device for separating a fluid, in particular a lubricant, from a coolant |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008047447B4 (en) | 2007-09-19 | 2019-03-14 | Denso Corporation | Oil separator and refrigerant compressor with this |
US9989280B2 (en) * | 2008-05-02 | 2018-06-05 | Heatcraft Refrigeration Products Llc | Cascade cooling system with intercycle cooling or additional vapor condensation cycle |
JP5083106B2 (en) * | 2008-08-05 | 2012-11-28 | 株式会社デンソー | Expansion valve and vapor compression refrigeration cycle provided with the same |
CN109373645B (en) * | 2018-10-31 | 2020-12-01 | 上海爱斯达克汽车空调系统有限公司 | Air-supplementing enthalpy-increasing heat pump system with throttling multi-port expansion valve, vehicle and method |
KR102548358B1 (en) * | 2020-09-07 | 2023-06-28 | 한온시스템 주식회사 | Vapor injection module and heat pump system using the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4341086A (en) * | 1980-10-06 | 1982-07-27 | Clarion Co., Ltd. | Refrigeration system |
US5706666A (en) * | 1994-04-12 | 1998-01-13 | Nippondenso Co., Ltd. | Refrigeration apparatus |
EP1043550A1 (en) * | 1997-12-26 | 2000-10-11 | Zexel Corporation | Refrigerating cycle |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03122473A (en) * | 1989-10-05 | 1991-05-24 | Toyota Autom Loom Works Ltd | Vaporizing pressure regulating valve for freezing device |
JPH0571670A (en) * | 1991-09-12 | 1993-03-23 | Nippondenso Co Ltd | Expansion valve |
JP3528433B2 (en) * | 1996-06-18 | 2004-05-17 | 株式会社日本自動車部品総合研究所 | Vapor compression refrigeration cycle |
DE69732206T2 (en) * | 1996-08-22 | 2005-12-22 | Denso Corp., Kariya | Refrigeration system of the vapor compression type |
CN1492986A (en) * | 2001-02-21 | 2004-04-28 | 松下电器产业株式会社 | Refrigeration cycle device |
JP3430160B2 (en) * | 2001-05-11 | 2003-07-28 | 松下冷機株式会社 | refrigerator |
JP2003240366A (en) * | 2002-02-21 | 2003-08-27 | Mitsubishi Electric Corp | Refrigerating air conditioner |
-
2005
- 2005-12-26 JP JP2005372735A patent/JP4694365B2/en not_active Expired - Fee Related
-
2006
- 2006-12-21 EP EP06126919A patent/EP1801521A3/en not_active Withdrawn
- 2006-12-22 US US11/615,247 patent/US20070144206A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4341086A (en) * | 1980-10-06 | 1982-07-27 | Clarion Co., Ltd. | Refrigeration system |
US5706666A (en) * | 1994-04-12 | 1998-01-13 | Nippondenso Co., Ltd. | Refrigeration apparatus |
EP1043550A1 (en) * | 1997-12-26 | 2000-10-11 | Zexel Corporation | Refrigerating cycle |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017182516A1 (en) * | 2016-04-19 | 2017-10-26 | OET GmbH | Separator device for separating a fluid, in particular a lubricant, from a coolant |
US10935027B2 (en) | 2016-04-19 | 2021-03-02 | OET GmbH | Separator device for separating a fluid, in particular a lubricant, from a coolant |
Also Published As
Publication number | Publication date |
---|---|
JP4694365B2 (en) | 2011-06-08 |
US20070144206A1 (en) | 2007-06-28 |
JP2007170783A (en) | 2007-07-05 |
EP1801521A3 (en) | 2008-02-13 |
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