FR2047769A5 - - Google Patents

Info

Publication number
FR2047769A5
FR2047769A5 FR7017617A FR7017617A FR2047769A5 FR 2047769 A5 FR2047769 A5 FR 2047769A5 FR 7017617 A FR7017617 A FR 7017617A FR 7017617 A FR7017617 A FR 7017617A FR 2047769 A5 FR2047769 A5 FR 2047769A5
Authority
FR
France
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
FR7017617A
Other languages
French (fr)
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.)
Copeland Refrigeration Corp
Original Assignee
Copeland Refrigeration Corp
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 Copeland Refrigeration Corp filed Critical Copeland Refrigeration Corp
Application granted granted Critical
Publication of FR2047769A5 publication Critical patent/FR2047769A5/fr
Expired 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B2400/074—Details of compressors or related parts with multiple cylinders
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/026—Compressor control by controlling unloaders
    • F25B2600/0261—Compressor control by controlling unloaders external to the compressor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
FR7017617A 1969-05-14 1970-05-14 Expired FR2047769A5 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82462769A 1969-05-14 1969-05-14

Publications (1)

Publication Number Publication Date
FR2047769A5 true FR2047769A5 (es) 1971-03-12

Family

ID=25241890

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7017617A Expired FR2047769A5 (es) 1969-05-14 1970-05-14

Country Status (5)

Country Link
US (1) US3578883A (es)
BE (1) BE750443A (es)
DE (1) DE2021942B2 (es)
ES (1) ES378734A1 (es)
FR (1) FR2047769A5 (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE790672A (fr) * 1971-10-29 1973-04-27 Copeland Corp Compresseur a chambres rotatives
DE2508941C2 (de) * 1975-03-01 1982-08-26 Vsevolod Sergeevič Šerbakov Vorrichtung zum Entlasten der Zylinder eines Hubkolbenverdichters
US4432705A (en) * 1978-09-20 1984-02-21 Carrier Corporation Refrigeration compressor capacity control means and method
ZA794377B (en) * 1978-09-20 1980-11-26 Carrier Corp Refrigeration compressor capacity control means and method
US4326839A (en) * 1979-12-06 1982-04-27 Tecumseh Products Company Cylinder unloading mechanism for refrigeration compressor
US4353682A (en) * 1980-09-22 1982-10-12 The Trane Company Reciprocating gas compressor having suction shut-off unloading means
US4382749A (en) * 1980-11-14 1983-05-10 The Trane Company Reciprocating compressor with integral unloader valve
US4557342A (en) * 1983-05-20 1985-12-10 Trw Inc. Hydraulic apparatus
US4563134A (en) * 1985-06-24 1986-01-07 General Motors Corporation Cylinder head with pressure regulator valve
JPH07293446A (ja) * 1994-04-28 1995-11-07 Zexel Corp エアコンプレッサ
US6047557A (en) * 1995-06-07 2000-04-11 Copeland Corporation Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
US6206652B1 (en) 1998-08-25 2001-03-27 Copeland Corporation Compressor capacity modulation
US6575710B2 (en) * 2001-07-26 2003-06-10 Copeland Corporation Compressor with blocked suction capacity modulation
US7270145B2 (en) * 2002-08-30 2007-09-18 Haldex Brake Corporation unloading/venting valve having integrated therewith a high-pressure protection valve
AU2011218763B2 (en) * 2007-07-23 2012-05-03 Emerson Climate Technologies, Inc. Capacity Modulation System For Compressor And Method
US8157538B2 (en) * 2007-07-23 2012-04-17 Emerson Climate Technologies, Inc. Capacity modulation system for compressor and method
EP2391826B1 (en) * 2009-01-27 2017-03-15 Emerson Climate Technologies, Inc. Unloader system and method for a compressor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1806925A (en) * 1931-05-26 Xwilliam m mgpber
US2160860A (en) * 1936-02-20 1939-06-06 Schramm Inc Compressor
US2256565A (en) * 1939-09-30 1941-09-23 American Brake Shoe & Foundry Unloading device
US2961148A (en) * 1956-02-28 1960-11-22 Westinghouse Electric Corp Compressor cylinder unloaders
US3119550A (en) * 1961-02-09 1964-01-28 Carrier Corp Compressor capacity control
US3303988A (en) * 1964-01-08 1967-02-14 Chrysler Corp Compressor capacity control
US3406897A (en) * 1966-07-18 1968-10-22 Leybold Holding Ag Mechanical vacuum pump

Also Published As

Publication number Publication date
US3578883A (en) 1971-05-18
DE2021942A1 (de) 1970-11-26
BE750443A (fr) 1970-10-16
DE2021942B2 (de) 1975-07-03
ES378734A1 (es) 1972-06-16

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