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GB940852A - Compressors - Google Patents

Compressors

Info

Publication number
GB940852A
GB940852A GB3718861A GB3718861A GB940852A GB 940852 A GB940852 A GB 940852A GB 3718861 A GB3718861 A GB 3718861A GB 3718861 A GB3718861 A GB 3718861A GB 940852 A GB940852 A GB 940852A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
seat
bore
spring
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
GB3718861A
Inventor
Lester Riley
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co 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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB3718861A priority Critical patent/GB940852A/en
Publication of GB940852A publication Critical patent/GB940852A/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

Landscapes

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

Abstract

940,852. Compressor unloading means. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Sept. 7, 1962 [Oct. 17, 1961], No. 37188/61. Heading F1N. A compressor inlet valve 15 Fig. 1 is held open by an extension 14 of a piston 2 slidably mounted in a body 1 when delivery pressure admitted through a bore 12 is sufficient to blow a spring- biased valve 9 from a seat 11 surrounding said bore 12 to a seat 6 formed by the piston 2 and which seat when unoccupied is connected to atmosphere but when engaged by valve 9 provides a relatively greater area open to delivery pressure resulting in movement of the piston and valve to the position at which it opens the inlet valve 15. In a modification the valve 9 comprises a spring-biased ball and in a further modification both valve seats 6, 11 Fig. 3 are provided by shoulders formed in a cavity within the piston 2.
GB3718861A 1961-10-17 1961-10-17 Compressors Expired GB940852A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3718861A GB940852A (en) 1961-10-17 1961-10-17 Compressors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3718861A GB940852A (en) 1961-10-17 1961-10-17 Compressors

Publications (1)

Publication Number Publication Date
GB940852A true GB940852A (en) 1963-11-06

Family

ID=10394493

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3718861A Expired GB940852A (en) 1961-10-17 1961-10-17 Compressors

Country Status (1)

Country Link
GB (1) GB940852A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4710108A (en) * 1987-03-11 1987-12-01 Midland Brake, Inc. Isolation valve construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4710108A (en) * 1987-03-11 1987-12-01 Midland Brake, Inc. Isolation valve construction

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