EP2020577A3 - Compressor - Google Patents

Compressor Download PDF

Info

Publication number
EP2020577A3
EP2020577A3 EP08161400A EP08161400A EP2020577A3 EP 2020577 A3 EP2020577 A3 EP 2020577A3 EP 08161400 A EP08161400 A EP 08161400A EP 08161400 A EP08161400 A EP 08161400A EP 2020577 A3 EP2020577 A3 EP 2020577A3
Authority
EP
European Patent Office
Prior art keywords
oil
casing
unit
compressor
motor
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.)
Granted
Application number
EP08161400A
Other languages
German (de)
French (fr)
Other versions
EP2020577A2 (en
EP2020577B1 (en
Inventor
Byung-Kil Yoo
Nam-Kyu Cho
Dong-Koo Shin
Yang-Hee Cho
Hyo-Keun Park
Cheol-Hwan Kim
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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
Priority claimed from KR1020080070336A external-priority patent/KR101275185B1/en
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP2020577A2 publication Critical patent/EP2020577A2/en
Publication of EP2020577A3 publication Critical patent/EP2020577A3/en
Application granted granted Critical
Publication of EP2020577B1 publication Critical patent/EP2020577B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F25B31/00—Compressor arrangements
    • F25B31/002—Lubrication
    • F25B31/004—Lubrication oil recirculating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/025—Lubrication; Lubricant separation using a lubricant pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/026—Lubricant separation
    • 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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C11/00—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type
    • F01C11/002—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type of similar working principle
    • F01C11/004—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type of similar working principle and of complementary function, e.g. internal combustion engine with supercharger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/14—Lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/806—Pipes for fluids; Fittings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/045—Heating; Cooling; Heat insulation of the electric motor in hermetic pumps
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Compressor (AREA)

Abstract

A compressor is provided that includes a casing (10) defining an inner space, a suction pipe (SP) connected to the casing, a discharge pipe (DP) connected to the casing, a motor (20) located at the inner space of the casing, a compressing unit (30) driven by the motor to compress a refrigerant, an oil separating unit (40) configured to separate oil from the refrigerant discharged from the compressing unit, and an oil recollecting unit (50) configured to pump the oil separated by the oil separating unit and recollect the separated oil into the compressor main body.
EP08161400.0A 2007-07-30 2008-07-30 Compressor Not-in-force EP2020577B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020070076579 2007-07-30
KR20070139286 2007-12-27
KR1020080070336A KR101275185B1 (en) 2008-07-18 2008-07-18 Compressor

Publications (3)

Publication Number Publication Date
EP2020577A2 EP2020577A2 (en) 2009-02-04
EP2020577A3 true EP2020577A3 (en) 2011-03-30
EP2020577B1 EP2020577B1 (en) 2014-09-24

Family

ID=40029310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08161400.0A Not-in-force EP2020577B1 (en) 2007-07-30 2008-07-30 Compressor

Country Status (4)

Country Link
US (1) US20090031753A1 (en)
EP (1) EP2020577B1 (en)
JP (1) JP2009030611A (en)
ES (1) ES2507559T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101513632B1 (en) 2008-11-14 2015-04-20 엘지전자 주식회사 Hermetric compressor and refrigeration cycle device having the same
JP2010243108A (en) * 2009-04-08 2010-10-28 Sanden Corp Oil separator
JP6209730B2 (en) * 2013-03-27 2017-10-11 パナソニックＩｐマネジメント株式会社 Hermetic compressor
WO2014196168A1 (en) * 2013-06-06 2014-12-11 パナソニックＩｐマネジメント株式会社 Oil separator and method for manufacturing oil separator
GB201321629D0 (en) * 2013-12-06 2014-01-22 J & E Hall Ltd External separator
JP2021014812A (en) * 2019-07-11 2021-02-12 ダイキン工業株式会社 Compressor and refrigeration device
JP6985625B2 (en) * 2020-03-31 2021-12-22 ダイキン工業株式会社 Oil separator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0809029A2 (en) * 1996-05-23 1997-11-26 Sanyo Electric Co., Ltd. Compressor
EP0949465A2 (en) * 1998-04-08 1999-10-13 Matsushita Electric Industrial Co., Ltd. Compressor for refrigeration cycle
JP2003139059A (en) * 2001-10-31 2003-05-14 Daikin Ind Ltd Fluid machine
JP2005240637A (en) * 2004-02-25 2005-09-08 Mitsubishi Heavy Ind Ltd Gas compression unit
US20070071627A1 (en) * 2005-09-28 2007-03-29 Lg Electronics Inc. Oil pumping device of hermetic compressor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4915561B1 (en) * 1970-06-29 1974-04-16
JPH02230993A (en) * 1989-03-01 1990-09-13 Daikin Ind Ltd Scroll type fluid device
JP2666612B2 (en) * 1991-07-18 1997-10-22 株式会社日立製作所 Hermetic scroll compressor
JPH05223074A (en) * 1992-02-07 1993-08-31 Zexel Corp Oil circulating mechanism of scroll type compressor
JP3395495B2 (en) * 1995-12-26 2003-04-14 ダイキン工業株式会社 Hermetic compressor
JP3499110B2 (en) * 1997-08-11 2004-02-23 株式会社神戸製鋼所 Oil-cooled screw compressor
JP2004353565A (en) * 2003-05-29 2004-12-16 Daikin Ind Ltd Scroll type compressor
KR100864754B1 (en) * 2005-11-28 2008-10-22 엘지전자 주식회사 Oil feeding structure for scroll compressor
KR100688656B1 (en) * 2005-11-28 2007-03-02 엘지전자 주식회사 Oil feeding structure for scroll compressor
KR100751152B1 (en) * 2005-11-30 2007-08-22 엘지전자 주식회사 Oil feeding structure for scroll compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0809029A2 (en) * 1996-05-23 1997-11-26 Sanyo Electric Co., Ltd. Compressor
EP0949465A2 (en) * 1998-04-08 1999-10-13 Matsushita Electric Industrial Co., Ltd. Compressor for refrigeration cycle
JP2003139059A (en) * 2001-10-31 2003-05-14 Daikin Ind Ltd Fluid machine
JP2005240637A (en) * 2004-02-25 2005-09-08 Mitsubishi Heavy Ind Ltd Gas compression unit
US20070071627A1 (en) * 2005-09-28 2007-03-29 Lg Electronics Inc. Oil pumping device of hermetic compressor

Also Published As

Publication number Publication date
JP2009030611A (en) 2009-02-12
EP2020577A2 (en) 2009-02-04
EP2020577B1 (en) 2014-09-24
US20090031753A1 (en) 2009-02-05
ES2507559T3 (en) 2014-10-15

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