JPS57122193A - Oil replenishing device in refrigerator - Google Patents

Oil replenishing device in refrigerator

Info

Publication number
JPS57122193A
JPS57122193A JP641781A JP641781A JPS57122193A JP S57122193 A JPS57122193 A JP S57122193A JP 641781 A JP641781 A JP 641781A JP 641781 A JP641781 A JP 641781A JP S57122193 A JPS57122193 A JP S57122193A
Authority
JP
Japan
Prior art keywords
oil
pressure stage
tank
valve
pipe line
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
JP641781A
Other languages
Japanese (ja)
Inventor
Takuo Seki
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 JP641781A priority Critical patent/JPS57122193A/en
Publication of JPS57122193A publication Critical patent/JPS57122193A/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
    • F04C29/02—Lubrication; 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
    • 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
    • F25B2400/13—Economisers
    • 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
    • F25B2400/23—Separators

Landscapes

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

Abstract

PURPOSE:To perform easy movement of oil, by additionally providing a plurality of piping systems having valves between compressor units of a refrigerating cycle. CONSTITUTION:An oil tank 4 at a high pressure stage side is connected to a low pressure stage side of an oil tank 3 via an oil conveying pipe line 13 having a valve 12, while an outlet side of a low pressure stage oil pump 6 is communicated to an inlet side of a high pressure stage compressor 2 through an oil conveying pipe line 15 equipped with a valve 14. If the valve 12 existing on the pipe line 13 is actuated, oil stored in the high pressure stage side of the tank 4 is conveyed under pressure to the low pressure stage side of the tank 3 owing to a pressure difference. In the case where undue oil is stored in the tank 3, a discharge oil discharged by the oil pump 6 is fed to the inlet side of the compressor 2 through the pipe line 15 while the valve 14 is gradually opened.
JP641781A 1981-01-21 1981-01-21 Oil replenishing device in refrigerator Pending JPS57122193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP641781A JPS57122193A (en) 1981-01-21 1981-01-21 Oil replenishing device in refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP641781A JPS57122193A (en) 1981-01-21 1981-01-21 Oil replenishing device in refrigerator

Publications (1)

Publication Number Publication Date
JPS57122193A true JPS57122193A (en) 1982-07-29

Family

ID=11637788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP641781A Pending JPS57122193A (en) 1981-01-21 1981-01-21 Oil replenishing device in refrigerator

Country Status (1)

Country Link
JP (1) JPS57122193A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0478939A2 (en) * 1990-10-03 1992-04-08 ING. ENEA MATTEI S.p.A. Two-stage rotary compressor for refrigerating plants
JP2016031183A (en) * 2014-07-29 2016-03-07 パナソニックＩｐマネジメント株式会社 Two-stage compression type refrigerating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0478939A2 (en) * 1990-10-03 1992-04-08 ING. ENEA MATTEI S.p.A. Two-stage rotary compressor for refrigerating plants
JP2016031183A (en) * 2014-07-29 2016-03-07 パナソニックＩｐマネジメント株式会社 Two-stage compression type refrigerating device

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