JPS57198384A - Closed type scroll compressor - Google Patents

Closed type scroll compressor

Info

Publication number
JPS57198384A
JPS57198384A JP8117081A JP8117081A JPS57198384A JP S57198384 A JPS57198384 A JP S57198384A JP 8117081 A JP8117081 A JP 8117081A JP 8117081 A JP8117081 A JP 8117081A JP S57198384 A JPS57198384 A JP S57198384A
Authority
JP
Japan
Prior art keywords
coil end
cooling
refrigerant gas
scroll compressor
electric 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.)
Pending
Application number
JP8117081A
Other languages
Japanese (ja)
Inventor
Akira Murayama
Naoshi Uchikawa
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8117081A priority Critical patent/JPS57198384A/en
Publication of JPS57198384A publication Critical patent/JPS57198384A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE:To efficiently carry out the cooling of an electric motor, by cooling both the upper coil end and lower coil end units of the motor in this way splitting the refrigerant gas discharged out of the scroll compressor. CONSTITUTION:The high pressure gas discarged out of a discharge opening 12 upon compression at a scroll compressor unit 2 flows around an electric motor unit 3 past a refrigerant gas passage 17 and a connection pipe 8 through. This gas partially flows downward along an electric motor unit 3, cooling a lower coil end 14 and the rest of gas flows into an upper coil end 15 while turning around the motor 3, and finally it is discharged out of the closed receptacle after having the upper coil end 15 cooled. Like this way, since the refrigerant gas is split in a passage 19 or 20 or either, no hydraulic fluid is blown off toward a discharge pipe located upside. And, what is more, this refrigerant gas flows around the whole boundary of a stator 3b and thereby a cooling effect is excellent.
JP8117081A 1981-05-29 1981-05-29 Closed type scroll compressor Pending JPS57198384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8117081A JPS57198384A (en) 1981-05-29 1981-05-29 Closed type scroll compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8117081A JPS57198384A (en) 1981-05-29 1981-05-29 Closed type scroll compressor

Publications (1)

Publication Number Publication Date
JPS57198384A true JPS57198384A (en) 1982-12-04

Family

ID=13738978

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8117081A Pending JPS57198384A (en) 1981-05-29 1981-05-29 Closed type scroll compressor

Country Status (1)

Country Link
JP (1) JPS57198384A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886427A (en) * 1987-02-28 1989-12-12 Hitachi, Ltd. Hermetic scroll compressor with passage group for discharged fluid
US5263822A (en) * 1989-10-31 1993-11-23 Matsushita Electric Industrial Co., Ltd. Scroll compressor with lubrication passages to the main bearing, revolving bearing, back-pressure chamber and compression chambers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285504A (en) * 1964-12-10 1966-11-15 Gen Motors Corp Refrigerant apparatus
JPS5546081A (en) * 1978-09-29 1980-03-31 Mitsubishi Electric Corp Scroll compressor
JPS55148994A (en) * 1979-05-09 1980-11-19 Hitachi Ltd Closed scroll fluid device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285504A (en) * 1964-12-10 1966-11-15 Gen Motors Corp Refrigerant apparatus
JPS5546081A (en) * 1978-09-29 1980-03-31 Mitsubishi Electric Corp Scroll compressor
JPS55148994A (en) * 1979-05-09 1980-11-19 Hitachi Ltd Closed scroll fluid device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886427A (en) * 1987-02-28 1989-12-12 Hitachi, Ltd. Hermetic scroll compressor with passage group for discharged fluid
US5263822A (en) * 1989-10-31 1993-11-23 Matsushita Electric Industrial Co., Ltd. Scroll compressor with lubrication passages to the main bearing, revolving bearing, back-pressure chamber and compression chambers

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