GB939587A - Compressor unloading means - Google Patents

Compressor unloading means

Info

Publication number
GB939587A
GB939587A GB35815/61A GB3581561A GB939587A GB 939587 A GB939587 A GB 939587A GB 35815/61 A GB35815/61 A GB 35815/61A GB 3581561 A GB3581561 A GB 3581561A GB 939587 A GB939587 A GB 939587A
Authority
GB
United Kingdom
Prior art keywords
compressor
annular
spring
piston member
cylinder
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
GB35815/61A
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.)
Trane Co
Original Assignee
Trane Co
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 Trane Co filed Critical Trane Co
Publication of GB939587A publication Critical patent/GB939587A/en
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
    • F04B49/24—Bypassing
    • F04B49/243—Bypassing by keeping open the inlet valve
    • 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
    • F04B39/128—Crankcases
    • 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
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/03—Stopping, starting, unloading or idling control by means of valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

939,587. Compressors. TRANE CO. Oct. 4, 1961 [Dec. 29, 1960], No. 35815/61. Class 8(1). A compressor is provided with unloading means comprising an annular piston member 36 which is spring-loaded towards a suction valve 22 and is associated with valve engaging means such as spring-biased pins 48 which are adapted to be moved by the piston member 36 to hold the suction valve open, and means being provided to supply fluid, e.g. oil, to a cavity 80 in response to the compressor loading conditions in order to force the annular piston member 36 against its spring-loading to allow the suction valve 22 to return to the normal operating position. The compressor has a piston 16 driven by a connecting rod 18 and operating in a cylinder defined by a cylinder liner 24. Gas passes from a suction chamber 12 to the cylinder under the control of the suction valve 22 and compressed gas passes from the cylinder to a discharge chamber 28 under the control of a discharge valve 26, the valves being spring-biased to the closed positions thereof. A crankcase 42 is separated from the suction chamber 12 by a partition 40 having an annular portion 38, and the annular piston member 36 is disposed in an annular chamber formed between the portion 38 and the cylinder liner 24, sealing means 64 being provided in the annular chamber. The compressor is preferably provided with a plurality of cylinders and is associated with refrigeration means comprising a condenser 30, a receiver 33, expansion means 34 and an evaporator 14 U.S.A. Specification 2,673,025 is referred to.
GB35815/61A 1960-12-29 1961-10-04 Compressor unloading means Expired GB939587A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79318A US3073510A (en) 1960-12-29 1960-12-29 Compressor unloading mechanism

Publications (1)

Publication Number Publication Date
GB939587A true GB939587A (en) 1963-10-16

Family

ID=22149781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35815/61A Expired GB939587A (en) 1960-12-29 1961-10-04 Compressor unloading means

Country Status (2)

Country Link
US (1) US3073510A (en)
GB (1) GB939587A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3261541A (en) * 1963-11-29 1966-07-19 Vilter Manufacturing Corp Compressor unloading means

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374944A (en) * 1966-08-26 1968-03-26 Gen Electric Compressor unit
JP3505233B2 (en) * 1994-09-06 2004-03-08 サンデン株式会社 Compressor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2555005A (en) * 1948-01-31 1951-05-29 Gen Electric Reciprocating compressor with unloading and capacity modulating control
US2673025A (en) * 1949-11-14 1954-03-23 Trane Co Compressor unloading means
US2973132A (en) * 1958-10-20 1961-02-28 Worthington Corp Unloading means for reciprocating compressor
US2971690A (en) * 1958-10-24 1961-02-14 Worthington Corp Unloading means for a reciprocating compressor
US2956729A (en) * 1959-05-14 1960-10-18 Worthington Corp Unloader means for a reciprocating compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3261541A (en) * 1963-11-29 1966-07-19 Vilter Manufacturing Corp Compressor unloading means

Also Published As

Publication number Publication date
US3073510A (en) 1963-01-15

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