US20100170291A1 - Hermetic compressor and refrigeration system - Google Patents

Hermetic compressor and refrigeration system Download PDF

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Publication number
US20100170291A1
US20100170291A1 US12/297,706 US29770608A US2010170291A1 US 20100170291 A1 US20100170291 A1 US 20100170291A1 US 29770608 A US29770608 A US 29770608A US 2010170291 A1 US2010170291 A1 US 2010170291A1
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United States
Prior art keywords
hermetic compressor
compressor according
combination
oil
refrigeration
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Abandoned
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US12/297,706
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English (en)
Inventor
Yuuki Yoshimi
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Panasonic Corp
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Panasonic Corp
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Assigned to PANASONIC CORPORATION reassignment PANASONIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: YOSHIMI, YUUKI
Publication of US20100170291A1 publication Critical patent/US20100170291A1/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/32—Esters
    • C10M105/36—Esters of polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C10M171/008—Lubricant compositions compatible with refrigerants
    • 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
    • F25B31/00—Compressor arrangements
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
    • C10M2207/2825—Esters of (cyclo)aliphatic oolycarboxylic acids used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/02—Viscosity; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/09—Characteristics associated with water
    • C10N2020/097—Refrigerants
    • C10N2020/101—Containing Hydrofluorocarbons
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/30—Refrigerators lubricants or compressors lubricants

Definitions

  • the present invention relates to a hermetic compressor and a refrigeration system using a refrigerant whose main component is a hydrofluorocarbon refrigerant and whose critical temperature is 40 degrees centigrade or higher.
  • chlorofluorocarbon 12 used as a refrigerant of a refrigeration system such as a refrigerator or dehumidifier is also a control subject.
  • hydrofluorocarbon (HFC) refrigerants which do not destroy the ozone layer and whose ozone depletion potential is 0.
  • HFC-134a hydrofluorocarbon
  • a conventional hermetic compressor and a conventional refrigeration system using HFC-134a use a refrigeration oil whose base oil is an alicyclic multivalent carboxylic acid ester compound. The techniques are disclosed in, for example, Patent Citation 1.
  • FIG. 6 is a configuration diagram of a conventional refrigeration system.
  • a refrigeration system is constructed by connecting hermetic compressor 1 , condenser 2 , expansion mechanism 3 , and evaporator 4 with pipes in order.
  • a refrigerant is sealed.
  • FIG. 7 is a vertical cross-sectional view of the hermetic compressor.
  • hermetic compressor 1 houses, in hermetic container 5 , compression element 6 , electric element 7 for driving compression element 6 , and refrigeration oil 8 for sliding lubrication of hermetic compressor 1 and sealing of a compression chamber.
  • hermetic compressor 1 electric element 7 drives compression element 6 , thereby compressing a low-temperature low-pressure gaseous refrigerant.
  • the resultant refrigerant is discharged as a high-temperature high-pressure gaseous refrigerant and sent to condenser 2 .
  • the gaseous refrigerant sent to condenser 2 becomes a high-temperature high-pressure liquid refrigerant while emitting its heat into the air, and the high-temperature high-pressure liquid refrigerant is sent to expansion mechanism 3 .
  • the high-temperature high-pressure liquid refrigerant passing through expansion mechanism 3 becomes a low-temperature low-pressure wet steam by a diaphragm effect, and the low-temperature low-pressure wet stream is sent to evaporator 4 .
  • the refrigerant in evaporator 4 absorbs heat from the environment and evaporates.
  • the refrigerant on the low-temperature low-pressure gas from evaporator 4 is sucked by hermetic compressor 1 . After that, the same cycle is repeated.
  • HFC-134a is used as the refrigerant.
  • the kinetic viscosity of the HFC-134a is 2 to 70 cSt at 40 degrees centigrade, and 1 to 9 cSt at 100 degrees centigrade.
  • the HFC-134a has at least two ester groups in the molecule. At least two ester groups are bound to carbon atoms adjacent to each other on an alicyclic ring.
  • refrigeration oil 8 is also employed.
  • Refrigeration oil 8 uses, as a base oil, an alicyclic multivalent carboxylic acid ester compound whose carbon number is 1 to 30 among hydrocarbon radicals bound to at least two ester groups.
  • the lower critical temperature of refrigeration oil 8 is 0 degree or less or ⁇ 30 degrees centigrade or lower.
  • the present invention provides a very reliable hermetic compressor and refrigeration system by suppressing aggression of a refrigeration oil to an organic material.
  • the ratio of the carbon number of the hydrocarbon radical bound to the ester group of the refrigeration oil using the alicyclic multivalent carboxylic acid ester compound as a base oil is controlled.
  • the hermetic compressor and the refrigeration system of the present invention have the effect that extraction from an organic material is reduced.
  • FIG. 1 is a vertical cross-sectional view of a hermetic compressor in a first embodiment of the present invention.
  • FIG. 2 is a configuration diagram of a refrigeration system in the first embodiment of the present invention.
  • FIG. 3 is a diagram showing the relation between the carbon number of a hydrocarbon radical and the swelling ratio of an organic material in the first embodiment of the present invention.
  • FIG. 4 is a vertical cross-sectional view of a hermetic compressor in a second embodiment of the present invention.
  • FIG. 5 is a configuration diagram of a refrigeration system in the second embodiment of the present invention.
  • FIG. 6 is a configuration diagram of a conventional refrigeration system.
  • FIG. 7 is a vertical cross-sectional view of a conventional hermetic compressor.
  • FIG. 1 is a vertical cross-sectional view of a hermetic compressor in a first embodiment of the present invention.
  • FIG. 2 is a configuration diagram of a refrigeration system in the first embodiment of the present invention.
  • hermetic compressor 101 accumulates, in hermetic container 102 , refrigeration oil 103 and houses electric element 104 and compression element 105 driven by electric element 104 .
  • the refrigeration system of the first embodiment is constructed by connecting hermetic compressor 101 , condenser 106 , expansion mechanism 107 , and evaporator 108 with pipes in order.
  • Refrigerant 109 is a hydrofluorocarbon refrigerant and sealed in the refrigeration system of the first embodiment.
  • hermetic compressor 101 The operation and action of hermetic compressor 101 and the refrigeration system constructed as described above will be explained below.
  • hermetic compressor 101 when electric element 104 drives compression element 105 , low-temperature low-pressure gaseous refrigerant 109 is sucked into compression chamber 111 via suction muffler 110 as a muffler and compressed in compression chamber 111 . The resultant refrigerant is discharged as high-temperature high-pressure gaseous refrigerant 109 from compression chamber 111 . Discharged refrigerant 109 is led to the outside of hermetic compressor 101 via D line 112 that attenuates ripples and sent to condenser 106 .
  • Gaseous refrigerant 109 sent to condenser 106 becomes high-temperature high-pressure liquid refrigerant 109 while emitting its heat into the air, and the high-temperature high-pressure liquid refrigerant is sent to expansion mechanism 107 .
  • crankshaft 113 press-fixed to electric element 104 rotates, and eccentric motion of eccentric shaft 114 of crankshaft 113 is transmitted from connecting rod 115 as a coupling part to piston 117 via piston pin 116 .
  • Piston 117 reciprocates in cylindrical bore 119 formed in block 118 and compresses refrigerant 109 in compression chamber 111 in an opening/closing process of valve 120 .
  • expansion mechanism 107 a capillary tube having a diameter of 0.6 mm is used. High-temperature high-pressure liquid refrigerant 109 passing through expansion mechanism 107 is rapidly decompressed, thereby becoming low-temperature low-pressure liquid refrigerant 109 . Liquid refrigerant 109 is sent to evaporator 108 and becomes low-temperature low-pressure gaseous refrigerant 109 while absorbing heat in the air. Further, gaseous refrigerant 109 is sent to hermetic compressor 101 . In such a manner, the operation of the refrigerating cycle is performed.
  • HFC-134a as a hydrofluorocarbon refrigerant is used as refrigerant 109 .
  • base oil of refrigeration oil 103 an alicyclic multivalent carboxylic acid ester compound having a kinetic viscosity at 40 degrees centigrade of 2 to 70 cSt, and at 100 degrees centigrade of 1 to 9 cSt is chosen. It was confirmed that there is no problem in performance and reliability of hermetic compressor 101 when the kinetic viscosity is thus chosen.
  • the two-phase separation temperature between the alicyclic multivalent carboxylic acid ester compound and the hydrofluorocarbon refrigerant is ⁇ 35 degrees centigrade or lower at lower critical temperature and 70 degrees centigrade or higher at upper critical temperature. Therefore, the two-phase separation does not occur at a temperature higher than ⁇ 35 degrees centigrade of the evaporator temperature and equal to or lower than 70 degrees centigrade of the condenser temperature. Therefore, refrigeration oil 103 does not reside and a very reliable system is provided as a refrigeration system.
  • the alicyclic multivalent carboxylic acid ester compound used for refrigeration oil 103 has an alicyclic ring and at least two ester groups expressed by the following general formula (1). At least two ester groups are bound to carbon atoms adjacent to each other on the alicyclic ring.
  • R 1 denotes a hydrocarbon radical
  • Examples of the alicyclic rings may include cyclopentane ring, cyclohexane ring, cycloheptane ring, and the like. After making examinations, it was understood that the cyclohexane ring is preferable.
  • the alicyclic carboxylic acid ester compound whose aggression to the organic material is suppressed can be obtained.
  • FIG. 3 is a diagram showing the relation between the carbon number of a hydrocarbon radical and the swelling ratio of an organic material in the first embodiment of the present invention.
  • C 1 , C 4 , C 8 and C 9 denotes a hydrocarbon radical whose carbon number is 1, 4, 8 and 9, respectively, and content ratio is the ratio of C 1 , C 4 , C 8 and C 9 among all hydrocarbon radicals.
  • FIG. 3 shows the result of evaluation of a shield tube test between HFC-134a and refrigeration oil 103 .
  • Increase in the swelling ratio denotes that refrigeration oil 103 penetrates an organic material, and components in the organic material are extracted to the outside. Therefore, since an organic material is included in hermetic compressor 101 , refrigeration oil 103 having a low organic material swelling ratio has to be chosen. It was understood from the experiment result that, the proper ratio that the carbon number of R 1 is 4 or less is 15% by weight or less.
  • a life test was conducted in a refrigeration system constructed by hermetic compressor 101 , condenser 106 , expansion mechanism 107 , and evaporator 108 .
  • conventional refrigeration oil 103 an alicyclic carboxylic acid ester compound of 25% by weight in which the carbon number of R 1 is 4 was used.
  • refrigeration oil 103 of the hermetic compressor in the first embodiment an alicyclic multivalent carboxylic acid ester compound in which the ratio that the carbon number of R 1 is 4 or less is 15% by weight was used.
  • an upper-layer polyamide-imide/lower-layer polyester imide (AI/EI) copper wire was used as an enameled copper wire of electric element 104 .
  • an insulating film polyethylene terephthalate was used.
  • Low-oligomer polyethylene terephthalate was used for suction muffler 110 of compression element 105 .
  • Nitrile rubber was used as vibration-proof rubber 121 used for preventing D line 112 from being vibrated as a rubber part used in hermetic container 102 .
  • the capillary flow decrease ratio could be reduced to 1/6 of the conventional one, and no generation of a sludge was recognized on valve 120 .
  • the upper-layer polyamide-imide/lower-layer polyester imide (AI/EI) copper wire was used as an enameled copper wire in electric element 104 of hermetic compressor 101 , and polyethylene terephthalate was used as an insulating film.
  • AI/HPE upper-layer polyamide-imide/lower-layer modified polyester
  • the capillary flow decrease ratio could be reduced to 1/6 of conventional one. Further, breakdown retention evaluation was made and it was understood that the retention was 95% or higher and there is no problem of degradation.
  • low-oligomer polyethylene terephthalate was used for suction muffler 110 of compression element 105 in hermetic compressor 101 . Also in the case of using any of polyethylene terephthalate containing no paraffin, polyethylene naphthalate, polyamide-imide coat polyester, polyphenylene sulfide, and polyether ether ketone, the capillary flow decrease ratio could be reduced to 1/6 of conventional one. Moreover, since the materials have thermal conductivity lower than that of metals, it contributes to improve the performance of hermetic compressor 101 .
  • nitrile rubber was used as the rubber part used in hermetic container 102 in hermetic compressor 101 . Also in the case of using any one of hydrogenerated nitrile rubber and fluorine rubber, similar effects could be obtained.
  • refrigeration oil 103 containing an additive was evaluated.
  • a forming agent, antioxidant agent, and extreme-pressure additive agent were used as the additives and the capillary flow decrease ratio in the life test was recognized.
  • 20 to 100 ppm of dimethylsiloxane having a kinetic viscosity of 40 to 100 cSt as the foaming agent, 0.05 to 0.2 wt % of dibutyl paracresol (DBPC) as the antioxidant agent, and 0.05 to 0.3 wt % of trecresyl phosphate (TCP) as the extreme-pressure additive agent were added.
  • the capillary flow decrease ratio was 5% or less, and it could be confirmed that there is no problem in sound and sliding.
  • the sliding part of hermetic compressor 101 was evaluated by an environment abrasion tester in a state where refrigerant 109 and refrigeration oil 103 coexist.
  • Gray cast iron FC-200 was used as the material of block 118
  • spheroidal graphite cast iron was used as the material of crankshaft 113
  • a sintered metal whose hardness is HRB70 was used as the material of piston 117
  • high-silicon aluminum ADC14 was used as the material of connecting rod 115
  • chrome molybdenum steel SCM415 was used as the material of piston pin 116 . Since cast metals are easily adhered to each other because they are metals of the same kind, phosphate coating process is performed on one of the metals to address sliding of the cast metals.
  • the wear amount due to sliding was 5 ⁇ m or less in any of combinations of gray cast irons FC-200 (one-side phosphate coating process), FC-200 (surface phosphate coating process) and FCD-500, FC-200 and FCD-500 (surface phosphate coating process), FC-200 and a sintered metal, FC-200 and ADC14, FDC-500 and ADC14, and ADC-14 and carburized SCM415. It could be confirmed that there is no problem.
  • high-reliable refrigeration oil 103 high-reliable hermetic compressor 101 and refrigeration system could be provided.
  • FIG. 4 is a vertical cross-sectional view of a hermetic compressor in a second embodiment of the present invention.
  • FIG. 5 is a configuration diagram of a refrigeration system in the second embodiment of the present invention.
  • hermetic compressor 201 accumulates, in hermetic container 202 , refrigeration oil 203 and houses electric element 204 and compression element 205 driven by electric element 204 .
  • the refrigeration system of the second embodiment is constructed by connecting hermetic compressor 201 , condenser 206 , expansion mechanism 207 , and evaporator 208 with pipes in order.
  • Refrigerant 209 is a hydrofluorocarbon refrigerant and sealed in the refrigeration system of the second embodiment.
  • hermetic compressor 201 The operation and action of hermetic compressor 201 and the refrigeration system constructed as described above will be explained below.
  • hermetic compressor 201 when electric element 204 drives compression element 205 , low-temperature low-pressure gaseous refrigerant 209 is sucked into compression chamber 211 via suction muffler 210 as a muffler and compressed in compression chamber 211 . The resultant refrigerant is discharged as high-temperature high-pressure gaseous refrigerant 209 from compression chamber 111 . Discharged refrigerant 209 is sent to condenser 206 . It becomes high-temperature high-pressure liquid refrigerant 209 while emitting its heat into the air, and the high-temperature high-pressure liquid refrigerant is sent to expansion mechanism 207 .
  • expansion mechanism 207 a capillary tube having a diameter of 0.6 mm is used. High-temperature high-pressure liquid refrigerant 209 passing through expansion mechanism 207 is rapidly decompressed, thereby becoming low-temperature low-pressure liquid refrigerant 209 . Liquid refrigerant 209 is sent to evaporator 208 and becoming low-temperature low-pressure gaseous refrigerant 209 while absorbing heat in the air. Further, gaseous refrigerant 209 is sent to hermetic compressor 201 . In such a manner, the operation of the refrigerating cycle is performed.
  • HFC-134a as a hydrofluorocarbon refrigerant is used as refrigerant 209 .
  • an alicyclic multivalent carboxylic acid ester compound whose kinetic viscosity is 2 to 70 cSt at 40 degrees centigrade, and 1 to 9 cSt at 100 degrees centigrade and whose two-phase separation temperature is ⁇ 35 degrees centigrade or lower at the lower critical temperature and is 70 degrees centigrade or higher at the upper critical temperature is used. That is, refrigeration oil having an alicyclic ring and at least two ester groups expressed by the above general formula (1), the at least two ester groups bound to carbon atoms adjacent to each other on the alicyclic ring, is used.
  • Examples of the alicyclic rings may include cyclopentane ring, cyclohexane ring, cycloheptane ring, and the like. After examinations, it was understood that the cyclohexane ring is preferable.
  • hermetic compressor 201 was replaced in service repair or the like in the market, ester oil obtained by reaction between an aliphatic alcohol and a fatty acid was used before the replacement, and the ester oil was mixed with refrigeration oil 203 sealed in newly attached hermetic compressor 201 .
  • the characteristics of refrigeration oil 203 were confirmed using refrigeration oil 203 mixed with the ester oil obtained by reaction between aliphatic alcohol and fatty acid.
  • Table 1 shows the result of evaluation made in a shield tube test between HFC-134a and refrigeration oil 203 .
  • refrigeration oil 203 is a same refrigeration oil of Embodiment 1.
  • a life test was conducted in a refrigeration system constructed by hermetic compressor 201 , condenser 206 , expansion mechanism 207 , and evaporator 208 .
  • refrigeration oil 203 in which 50% by weight of the ester oil obtained by the reaction between aliphatic alcohol and fatty acid is mixed was used.
  • the capillary flow decrease ratio could be reduced to 1/6 of the conventional one. That is, since there is hardly any influence on the characteristics of refrigeration oil 203 of the ester oil obtained by the reaction between aliphatic alcohol and fatty acid, aggression to an organic material can be suppressed.
  • high-reliable refrigeration oil 203 high-reliable hermetic compressor 201 and the refrigeration system can be realized.
  • hermetic compressor and the refrigeration system of the present invention aggression to an organic material can be suppressed.
  • the high-reliable hermetic compressor and the refrigeration system can be provided and the invention can be widely applied to devices each using a refrigeration system.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Emergency Medicine (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compressor (AREA)
  • Lubricants (AREA)
US12/297,706 2007-05-10 2008-04-28 Hermetic compressor and refrigeration system Abandoned US20100170291A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007125339 2007-05-10
JP2007-125339 2007-05-10
PCT/JP2008/001112 WO2008142829A1 (en) 2007-05-10 2008-04-28 Hermetic compressor and refrigeration system

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US20100170291A1 true US20100170291A1 (en) 2010-07-08

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US (1) US20100170291A1 (ko)
EP (1) EP2024468A1 (ko)
KR (1) KR20090010211A (ko)
CN (1) CN101541932A (ko)
WO (1) WO2008142829A1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170198951A1 (en) * 2016-01-13 2017-07-13 De-Fong Hsieh Refrigeration oil replacement device of a totally hermetic compressor in a refrigeration recycling system
CN109072896A (zh) * 2016-04-28 2018-12-21 东芝开利株式会社 密闭型压缩机以及制冷循环装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101955668A (zh) * 2010-09-30 2011-01-26 广东美的电器股份有限公司 用于制作空调压缩机消音器的复合材料
CN105571207B (zh) * 2016-02-19 2017-11-03 厦门松芝汽车空调有限公司 一种电车空调用压缩机组

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5514922A (en) * 1993-02-08 1996-05-07 Sanden Corporation Hermetic motor driven fluid apparatus having improved insulating structure
US6258293B1 (en) * 1990-11-16 2001-07-10 Hitachi, Ltd. Refrigeration cycle
US6450790B2 (en) * 1996-02-16 2002-09-17 Matsushita Electric Industrial Co., Ltd. Refrigerating cycle or compressor having foreign matter collector
US6872057B2 (en) * 2002-09-17 2005-03-29 Samsung Gwangju Electronics Co., Ltd. Hermetic compressor casing
US7029242B2 (en) * 2003-11-14 2006-04-18 Tecumseh Products Company Hermetic compressor with one-quarter wavelength tuner
US7134847B2 (en) * 2001-05-07 2006-11-14 Matsushita Refrigeration Company Hermetic electric compressor having a suction muffler

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000060021A1 (fr) * 1999-04-06 2000-10-12 Matsushita Refrigeration Company Composition refrigerante, compresseur electrique ferme et refrigerateur
JP2002356691A (ja) * 2001-05-31 2002-12-13 Matsushita Refrig Co Ltd 冷凍装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6258293B1 (en) * 1990-11-16 2001-07-10 Hitachi, Ltd. Refrigeration cycle
US5514922A (en) * 1993-02-08 1996-05-07 Sanden Corporation Hermetic motor driven fluid apparatus having improved insulating structure
US6450790B2 (en) * 1996-02-16 2002-09-17 Matsushita Electric Industrial Co., Ltd. Refrigerating cycle or compressor having foreign matter collector
US7134847B2 (en) * 2001-05-07 2006-11-14 Matsushita Refrigeration Company Hermetic electric compressor having a suction muffler
US6872057B2 (en) * 2002-09-17 2005-03-29 Samsung Gwangju Electronics Co., Ltd. Hermetic compressor casing
US7029242B2 (en) * 2003-11-14 2006-04-18 Tecumseh Products Company Hermetic compressor with one-quarter wavelength tuner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170198951A1 (en) * 2016-01-13 2017-07-13 De-Fong Hsieh Refrigeration oil replacement device of a totally hermetic compressor in a refrigeration recycling system
CN109072896A (zh) * 2016-04-28 2018-12-21 东芝开利株式会社 密闭型压缩机以及制冷循环装置

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EP2024468A1 (en) 2009-02-18
KR20090010211A (ko) 2009-01-29
WO2008142829A1 (en) 2008-11-27
CN101541932A (zh) 2009-09-23

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