JPS57168082A - Refrigerator - Google Patents

Refrigerator

Info

Publication number
JPS57168082A
JPS57168082A JP56053208A JP5320881A JPS57168082A JP S57168082 A JPS57168082 A JP S57168082A JP 56053208 A JP56053208 A JP 56053208A JP 5320881 A JP5320881 A JP 5320881A JP S57168082 A JPS57168082 A JP S57168082A
Authority
JP
Japan
Prior art keywords
oil
auxiliary compressor
compressor
check valve
tank
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
JP56053208A
Other languages
Japanese (ja)
Inventor
Kensaku Kokuni
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 JP56053208A priority Critical patent/JPS57168082A/en
Publication of JPS57168082A publication Critical patent/JPS57168082A/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
    • 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
    • F04B39/02—Lubrication
    • F04B39/0207—Lubrication with lubrication control systems
    • 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
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/075—Details of compressors or related parts with parallel compressors
    • 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
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/03—Oil level

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE:To stabilize the amount of oil by connecting between the bottoms of main compressor and an auxiliary compressor through an oil tank incorporating an electric heater and a check valve then gassifying the refrigerant dissolved in the oil in an oil tank to increase the gas pressure and flowing the oil to the auxiliary compressor. CONSTITUTION:The bottoms of main compressor 1 and an auxiliary compressor 2 are connected through a check valve 10, an oil tank 8 incorporating an electric heater 9 and a check valve 11. When the oil level in the main compressor 1 rises, an oil level sensor 12 will detect the oil level to supply the current to the electric heater 9 with predetermined period through a controller 13 thus to heat it. Consequently the refrigerant dissolved in the oil in an oil tank 8 is gassified to increase the pressure in the oil tank 8, thereby the pressure in the oil tank 8 will become higher than the pressure in the auxiliary compressor 2 and the oil in the tank 8 will flow through a check valve 11 into the auxiliary compressor 2 to obtain the oil amount reliably and stably resulting in the prevention of the burning of the auxiliary compressor 2.
JP56053208A 1981-04-10 1981-04-10 Refrigerator Pending JPS57168082A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56053208A JPS57168082A (en) 1981-04-10 1981-04-10 Refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56053208A JPS57168082A (en) 1981-04-10 1981-04-10 Refrigerator

Publications (1)

Publication Number Publication Date
JPS57168082A true JPS57168082A (en) 1982-10-16

Family

ID=12936437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56053208A Pending JPS57168082A (en) 1981-04-10 1981-04-10 Refrigerator

Country Status (1)

Country Link
JP (1) JPS57168082A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006041682A1 (en) * 2004-10-06 2006-04-20 Hallowell International, Llc Oil balance system and method for compressors
KR100575693B1 (en) 2004-10-18 2006-05-03 엘지전자 주식회사 Air conditioner with sub compression loop
WO2009039873A1 (en) * 2007-09-28 2009-04-02 Carrier Corporation Refrigerant circuit and method for managing oil therein

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006041682A1 (en) * 2004-10-06 2006-04-20 Hallowell International, Llc Oil balance system and method for compressors
US7651322B2 (en) 2004-10-06 2010-01-26 Hallowell International, Llc Oil balance system and method for compressors connected in series
US7712329B2 (en) 2004-10-06 2010-05-11 David Shaw Oil balance system and method for compressors
US8075283B2 (en) 2004-10-06 2011-12-13 Hallowell International, Llc Oil balance system and method for compressors connected in series
KR100575693B1 (en) 2004-10-18 2006-05-03 엘지전자 주식회사 Air conditioner with sub compression loop
WO2009039873A1 (en) * 2007-09-28 2009-04-02 Carrier Corporation Refrigerant circuit and method for managing oil therein

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