GB576509A - Improvements in or relating to hydraulic pumps - Google Patents

Improvements in or relating to hydraulic pumps

Info

Publication number
GB576509A
GB576509A GB398244A GB398244A GB576509A GB 576509 A GB576509 A GB 576509A GB 398244 A GB398244 A GB 398244A GB 398244 A GB398244 A GB 398244A GB 576509 A GB576509 A GB 576509A
Authority
GB
United Kingdom
Prior art keywords
pump
pass
cylinders
springs
conduits
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
GB398244A
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.)
Plessey Co Ltd
Original Assignee
Plessey 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB398244A priority Critical patent/GB576509A/en
Publication of GB576509A publication Critical patent/GB576509A/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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/14—Pumps characterised by muscle-power operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

576,509. Reciprocating pumps. BOOTH, D. G., and PLESSEY CO., Ltd. March 3, 1944, No. 3982. [Class 102 (i)] In a double-acting reciprocating pump of the type having low and high pressure conduits 14, 15, 18, 21 and inlet and discharge valves 16, 16a, 17, 17a, 19, 19a, 20, 20a at both ends of two or moie cylinders 2, 3, the ends of the cylinders are connected by by-pass conduits 23, 24 containing by-pass valves' 25, 25a which are subjected to the delivery pressure of the pump against the action of springs 25e the loading of which determines the pressures at which the by-pass valves open. The pistons 4, 5 are reciprocated manually in opposite directions by means of a common handle 12 and a pinion 10 engaging toothed racks 8, 9 on the piston rods 6, 7, whilst the springs 25e are accommodated in chambers 26, 26a on the low pressure side of the pump.
GB398244A 1944-03-03 1944-03-03 Improvements in or relating to hydraulic pumps Expired GB576509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB398244A GB576509A (en) 1944-03-03 1944-03-03 Improvements in or relating to hydraulic pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB398244A GB576509A (en) 1944-03-03 1944-03-03 Improvements in or relating to hydraulic pumps

Publications (1)

Publication Number Publication Date
GB576509A true GB576509A (en) 1946-04-08

Family

ID=9768563

Family Applications (1)

Application Number Title Priority Date Filing Date
GB398244A Expired GB576509A (en) 1944-03-03 1944-03-03 Improvements in or relating to hydraulic pumps

Country Status (1)

Country Link
GB (1) GB576509A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617361A (en) * 1950-03-17 1952-11-11 Westinghouse Electric Corp Fuel system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617361A (en) * 1950-03-17 1952-11-11 Westinghouse Electric Corp Fuel system

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