JPS5236629B2 - - Google Patents

Info

Publication number
JPS5236629B2
JPS5236629B2 JP48068346A JP6834673A JPS5236629B2 JP S5236629 B2 JPS5236629 B2 JP S5236629B2 JP 48068346 A JP48068346 A JP 48068346A JP 6834673 A JP6834673 A JP 6834673A JP S5236629 B2 JPS5236629 B2 JP S5236629B2
Authority
JP
Japan
Prior art keywords
compressor
compressors
shell
upper portion
oil
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.)
Expired
Application number
JP48068346A
Other languages
Japanese (ja)
Other versions
JPS4957438A (en
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 filed Critical
Publication of JPS4957438A publication Critical patent/JPS4957438A/ja
Publication of JPS5236629B2 publication Critical patent/JPS5236629B2/ja
Expired legal-status Critical Current

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
    • 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
    • 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
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • 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
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06—Combinations of two or more 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/24—Level of liquid, e.g. lubricant or cooling liquid
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Abstract

A multiple compressor refrigeration system having at least first and second hermetic shell compressors with the suction line of the system connected into the upper portion of the first compressor shell and a suction line extending from within the upper portion of the first compressor shell to within the upper portion of the shell of the second compressor and with the discharge lines of the first and second compressors connected in parallel to the high pressure line of the system. An oil equalizing conduit is connected between the crankcase portions of the shells of the first and second compressors at the height of the minimum desired oil level to be maintained in the first compressor when both compressors are running with normal quantities of oil in the system.
JP48068346A 1972-06-19 1973-06-19 Expired JPS5236629B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26410172A 1972-06-19 1972-06-19

Publications (2)

Publication Number Publication Date
JPS4957438A JPS4957438A (en) 1974-06-04
JPS5236629B2 true JPS5236629B2 (en) 1977-09-17

Family

ID=23004583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP48068346A Expired JPS5236629B2 (en) 1972-06-19 1973-06-19

Country Status (10)

Country Link
US (1) US3785169A (en)
JP (1) JPS5236629B2 (en)
AU (1) AU476083B2 (en)
BE (1) BE801043A (en)
CA (1) CA971765A (en)
DE (1) DE2330311A1 (en)
ES (1) ES416040A1 (en)
FR (1) FR2189689B1 (en)
GB (1) GB1429084A (en)
IT (1) IT990755B (en)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5223402B2 (en) * 1973-10-12 1977-06-24
US4105374A (en) * 1977-03-28 1978-08-08 Copeland Corporation Integrated multi-unit refrigeration motor-compressor assembly
US4102149A (en) * 1977-04-22 1978-07-25 Westinghouse Electric Corp. Variable capacity multiple compressor refrigeration system
US4179248A (en) * 1978-08-02 1979-12-18 Dunham-Bush, Inc. Oil equalization system for parallel connected hermetic helical screw compressor units
US4252506A (en) * 1978-09-01 1981-02-24 Tecumseh Products Company Variable capacity compressor
US4358254A (en) * 1978-09-01 1982-11-09 Tecumseh Products Company Variable capacity compressor
US4205537A (en) * 1978-12-11 1980-06-03 General Electric Company Multiple hermetic-motor compressor in common shell
JPS57131883A (en) * 1981-02-06 1982-08-14 Mitsubishi Electric Corp Parallel compression type refrigerator
US4418548A (en) * 1982-03-29 1983-12-06 Trane Cac, Inc. Variable capacity multiple compressor refrigeration system
FR2545580B1 (en) * 1983-05-02 1986-07-25 Puicervert Marc PERMANENT OIL HOLDING DEVICE IN COMPRESSOR CASES
US4505650A (en) * 1983-08-05 1985-03-19 Carrier Corporation Duplex compressor oil sump
US4537047A (en) * 1984-03-02 1985-08-27 Thermo King Corporation Truck transport refrigeration unit
US4551989A (en) * 1984-11-30 1985-11-12 Gulf & Western Manufacturing Company Oil equalization system for refrigeration compressors
US4729228A (en) * 1986-10-20 1988-03-08 American Standard Inc. Suction line flow stream separator for parallel compressor arrangements
US4750337A (en) * 1987-10-13 1988-06-14 American Standard Inc. Oil management in a parallel compressor arrangement
US4971529A (en) * 1987-12-24 1990-11-20 Tecumseh Products Company Twin rotary compressor with suction accumulator
US4889475A (en) * 1987-12-24 1989-12-26 Tecumseh Products Company Twin rotary compressor with suction accumulator
JPH01193089A (en) * 1988-01-29 1989-08-03 Toshiba Corp Rotary compressor
US5022146A (en) * 1989-08-30 1991-06-11 Tecumseh Products Company Twin rotary compressor with suction accumulator
BR8905970A (en) * 1989-11-16 1991-05-21 Narcizo Osorio Basseggio MISCIBLE FLUID COMPRESSION SYSTEM AND PROCESS
US5236311A (en) * 1992-01-09 1993-08-17 Tecumseh Products Company Compressor device for controlling oil level in two-stage high dome compressor
DK4093A (en) * 1993-01-14 1994-09-12 Birton As Installations for the return of lubricating oil in refrigeration compressors
US5435144A (en) * 1994-02-24 1995-07-25 Kalmbach; John Compressor lubricant distributing system for motor vehicles having auxiliary air conditioning
US5927088A (en) * 1996-02-27 1999-07-27 Shaw; David N. Boosted air source heat pump
US5839886A (en) * 1996-05-10 1998-11-24 Shaw; David N. Series connected primary and booster compressors
US6276148B1 (en) 2000-02-16 2001-08-21 David N. Shaw Boosted air source heat pump
TWI237682B (en) * 2000-07-07 2005-08-11 Sanyo Electric Co Freezing apparatus
AU2002363131A1 (en) * 2001-10-29 2003-05-12 Thomas H. Hebert Multiple compressor common circuit structure design
US6931871B2 (en) 2003-08-27 2005-08-23 Shaw Engineering Associates, Llc Boosted air source heat pump
US20060073026A1 (en) * 2004-10-06 2006-04-06 Shaw David N Oil balance system and method for compressors connected in series
JP4816220B2 (en) * 2006-04-20 2011-11-16 ダイキン工業株式会社 Refrigeration equipment
US20080134701A1 (en) * 2006-12-12 2008-06-12 Ole Moelgaard Christensen Variable Compressor Oil Return
US20080173034A1 (en) * 2007-01-19 2008-07-24 Hallowell International, Llc Heat pump apparatus and method
CN101779039B (en) * 2008-05-23 2013-01-16 松下电器产业株式会社 Fluid machine and refrigeration cycle device
US10184700B2 (en) * 2009-02-09 2019-01-22 Total Green Mfg. Corp. Oil return system and method for active charge control in an air conditioning system
FR2968731B1 (en) * 2010-12-13 2015-02-27 Danfoss Commercial Compressors THERMODYNAMIC SYSTEM EQUIPPED WITH A PLURALITY OF COMPRESSORS
US9903627B2 (en) * 2012-11-06 2018-02-27 Carrier Corporation Method of operating an air conditioning system including reducing the energy consumed by the compressor crank case heaters
CN103851830B (en) * 2012-12-03 2016-08-17 丹佛斯（天津）有限公司 Oil balancing unit and refrigeration plant
CN105020119B (en) 2013-12-17 2019-07-16 特灵国际有限公司 Fluid valve
JP6476810B2 (en) * 2014-12-10 2019-03-06 ダイキン工業株式会社 Compressor preheating device
US10571167B2 (en) 2015-03-20 2020-02-25 Carrier Corporation Transportation refrigeration unit with multiple compressors
CN106403071A (en) * 2016-11-28 2017-02-15 广东欧科空调制冷有限公司 Double-compressor pipeline structure
US10495365B2 (en) 2017-03-21 2019-12-03 Lennox Industries Inc. Method and apparatus for balanced fluid distribution in tandem-compressor systems
US10655897B2 (en) * 2017-03-21 2020-05-19 Lennox Industries Inc. Method and apparatus for common pressure and oil equalization in multi-compressor systems
US10731901B2 (en) 2017-03-21 2020-08-04 Lennox Industries Inc. Method and apparatus for balanced fluid distribution in multi-compressor systems
US20180340526A1 (en) * 2017-05-26 2018-11-29 Lennox Industries Inc. Method and apparatus for common pressure and oil equalization in multi-compressor systems
EP3396163B1 (en) * 2017-04-28 2022-02-16 Pfeiffer Vacuum Gmbh Vacuum pump with lubricant level limitation device
US10465937B2 (en) 2017-08-08 2019-11-05 Lennox Industries Inc. Hybrid tandem compressor system and method of use
US11460224B2 (en) * 2018-10-31 2022-10-04 Emerson Climate Technologies, Inc. Oil control for climate-control system
CN114440482B (en) * 2022-01-04 2024-01-23 特灵空调系统(中国)有限公司 Compressor unit and heat exchange system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2175913A (en) * 1935-12-18 1939-10-10 Nash Kelvinator Corp Motor-compressor unit for refrigerating apparatus
US2294552A (en) * 1937-05-13 1942-09-01 Curtis Mfg Co Refrigerating condensing unit
US2253623A (en) * 1937-05-18 1941-08-26 Westinghouse Electric & Mfg Co Refrigerating apparatus
US2663164A (en) * 1951-11-02 1953-12-22 Gen Electric Parallel compressor arrangement in refrigerating system
US3274796A (en) * 1965-09-23 1966-09-27 Vilter Manufacturing Corp Refrigeration system with lube oil separation means
US3386262A (en) * 1966-10-31 1968-06-04 Trane Co Refrigeration apparatus with compressors in parallel
US3577741A (en) * 1969-06-02 1971-05-04 Carrier Corp Refrigeration apparatus

Also Published As

Publication number Publication date
AU476083B2 (en) 1976-09-09
GB1429084A (en) 1976-03-24
ES416040A1 (en) 1976-02-16
AU5636473A (en) 1974-12-05
BE801043A (en) 1973-12-18
FR2189689B1 (en) 1976-04-30
DE2330311A1 (en) 1974-01-10
JPS4957438A (en) 1974-06-04
IT990755B (en) 1975-07-10
US3785169A (en) 1974-01-15
FR2189689A1 (en) 1974-01-25
CA971765A (en) 1975-07-29

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