GB1217235A - Improvements in or relating to pumps - Google Patents

Improvements in or relating to pumps

Info

Publication number
GB1217235A
GB1217235A GB246168A GB246168A GB1217235A GB 1217235 A GB1217235 A GB 1217235A GB 246168 A GB246168 A GB 246168A GB 246168 A GB246168 A GB 246168A GB 1217235 A GB1217235 A GB 1217235A
Authority
GB
United Kingdom
Prior art keywords
cylinders
inlet
connections
pistons
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
GB246168A
Inventor
Ezra Dale Hartley
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB246168A priority Critical patent/GB1217235A/en
Publication of GB1217235A publication Critical patent/GB1217235A/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
    • 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
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/02—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders arranged oppositely relative to main shaft
    • 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
    • F04B39/0005—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 adaptations of pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

1,217,235. Vacuum pumps. E. D. HARTLEY. Jan. 17, 1968, No.2461/68. Heading F1N. In a vacuum pump comprising opposed pistons 52, 54 inter-connected by spacer rods 56 and reciprocated in opposed cylinders 60, 62 by a rotatable eccentric 72 surrounded by a cylindrical ring 74 which alternately engages pads 80, 81 on the inner faces of the pistons, the body 20 defining the cylinders 60, 62 is provided with longitudinal passages (140, 142) Figs. 10-12 (not shown)which, depending on whether they are blocked or opened by the cylinder heads 22, 24, enable the cylinders to pump separately, or in parallel or series. Each cylinder head has a spring-loaded disc-shaped outlet valve 104 and an annular inlet valve 90 controlling a circular array of inlet ports in a valve plate 94. The cylinder heads also have inlet and outlet connections. When each cylinder pumps separately, all four connections are used, Fig. 12 (not shown) and the longitudinal passages (140, 142) are blocked. In series or parallel, Figs. 10 and 11 (not shown), a single inlet and a single outlet are used, openings being provided in the heads to achieve appropriate inter-connections of the cylinders. To prevent rotation of the pistons the ring 74 engages in a groove 86 in the pad 81.
GB246168A 1968-01-17 1968-01-17 Improvements in or relating to pumps Expired GB1217235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB246168A GB1217235A (en) 1968-01-17 1968-01-17 Improvements in or relating to pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB246168A GB1217235A (en) 1968-01-17 1968-01-17 Improvements in or relating to pumps

Publications (1)

Publication Number Publication Date
GB1217235A true GB1217235A (en) 1970-12-31

Family

ID=9739981

Family Applications (1)

Application Number Title Priority Date Filing Date
GB246168A Expired GB1217235A (en) 1968-01-17 1968-01-17 Improvements in or relating to pumps

Country Status (1)

Country Link
GB (1) GB1217235A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0255147A2 (en) * 1986-08-01 1988-02-03 TAER S.r.l. Perfected portable motor-driven compressor set
WO2000063557A1 (en) * 1999-04-15 2000-10-26 Leybold Vakuum Gmbh Piston vacuum pump with a gas inlet and a gas outlet
WO2007131302A1 (en) * 2006-05-17 2007-11-22 Brakepower Pty Ltd A power on demand braking system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0255147A2 (en) * 1986-08-01 1988-02-03 TAER S.r.l. Perfected portable motor-driven compressor set
EP0255147A3 (en) * 1986-08-01 1989-07-26 TAER S.r.l. Perfected portable motor-driven compressor set
WO2000063557A1 (en) * 1999-04-15 2000-10-26 Leybold Vakuum Gmbh Piston vacuum pump with a gas inlet and a gas outlet
WO2007131302A1 (en) * 2006-05-17 2007-11-22 Brakepower Pty Ltd A power on demand braking system

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