GB1126886A - Improvements in or relating to rotary vacuum pumps - Google Patents

Improvements in or relating to rotary vacuum pumps

Info

Publication number
GB1126886A
GB1126886A GB4645566A GB4645566A GB1126886A GB 1126886 A GB1126886 A GB 1126886A GB 4645566 A GB4645566 A GB 4645566A GB 4645566 A GB4645566 A GB 4645566A GB 1126886 A GB1126886 A GB 1126886A
Authority
GB
United Kingdom
Prior art keywords
oil
pump
plunger
rotary vacuum
disc
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
GB4645566A
Inventor
Harold Ernest Grindrod
John Alfred Smith
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.)
Genevac Ltd
Original Assignee
Genevac 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 Genevac Ltd filed Critical Genevac Ltd
Priority to GB4645566A priority Critical patent/GB1126886A/en
Publication of GB1126886A publication Critical patent/GB1126886A/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/021—Control systems for the circulation of the lubricant

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

1,126,886. Rotary vacuum pumps. GENEVAC Ltd. Oct. 18, 1966 [Oct. 18, 1966], No. 46455/66. Heading F1F. An oil-sealed rotary vacuum pump comprising an oil reservoir 10, Figs. 1, 2 and a pump chamber 11 inter-connected by a duct 20, includes an oil filled chamber 13 housing spaced apart discs 15, 16 secured to an extension of the pump shaft 12 and a freely rotating intermediate disc 18 formed with a notch 28 engaging the lower end of a plunger 27. The upper end of the plunger 27 engages a spring- loaded floating bar 22 carrying a rubber valve disc 23 controlling the duct 20. When the pump is operative, the discs 15 and 16 are rotated and the resulting oil drag rotates the disc 18 in the direction of the arrow A thereby to raise the plunger 27 and lift the bar 22 against its springs to unseat the valve 23 to allow oil to feed to the pump chamber. When the pump stops, oil drag ceases and the valve 23 becomes seated to prevent oil being sucked into the system being evacuated.
GB4645566A 1966-10-18 1966-10-18 Improvements in or relating to rotary vacuum pumps Expired GB1126886A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4645566A GB1126886A (en) 1966-10-18 1966-10-18 Improvements in or relating to rotary vacuum pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4645566A GB1126886A (en) 1966-10-18 1966-10-18 Improvements in or relating to rotary vacuum pumps

Publications (1)

Publication Number Publication Date
GB1126886A true GB1126886A (en) 1968-09-11

Family

ID=10441339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4645566A Expired GB1126886A (en) 1966-10-18 1966-10-18 Improvements in or relating to rotary vacuum pumps

Country Status (1)

Country Link
GB (1) GB1126886A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525129A (en) * 1981-12-17 1985-06-25 Leybold-Heraeus Gmbh Oil-sealed vacuum pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525129A (en) * 1981-12-17 1985-06-25 Leybold-Heraeus Gmbh Oil-sealed vacuum pump

Similar Documents

Publication Publication Date Title
CA971060A (en) Fluid driven reciprocating pump and control valve therefor
CA969829A (en) Reciprocating plunger type fuel injection pump having electromagnetically operated control port
CA1004642A (en) Pump with unitary valve member
GB1196256A (en) Improvements in or relating to Liquid Pumps
GB1210825A (en) Reversible positive-displacement fluid pump or motor
GB1126886A (en) Improvements in or relating to rotary vacuum pumps
DE2965758D1 (en) Control device for displacement pumps
GB1310358A (en) Rotary pumps
GB1023193A (en) Rotary pumps of the flexible tube type
GB1110660A (en) Improvements relating to sealing means for centrifugal pumps
GB1081818A (en) Improvements in or relating to flexible tube pumps
GB1354483A (en) Centrifugal pumps
GB1111357A (en) Improved fuel injection pump
GB1458459A (en) Motors or pumps
GB1069811A (en) Improvements in or relating to rotary vacuum pumps
GB1063068A (en) Improvements in and relating to oil-sealed rotary mechanical vacuum pumps
JPS57124079A (en) Liquid pump
SE320579B (en)
GB1179664A (en) Improvements in or relating to Rotary Vacuum Pumps
AU448350B2 (en) Self priming centrifugal pump with automatic air release valve
GB1460586A (en) Liquid fuel injection pumping apparatus
GB1257389A (en)
CA841964A (en) Stack-up slipper pump with integral flow control valve
US3423014A (en) Rotary vacuum pumps
GB1396361A (en) Trench shoring frame