GB847776A - Improvements in or relating to rotary vacuum pumps having a gas ballast device - Google Patents

Improvements in or relating to rotary vacuum pumps having a gas ballast device

Info

Publication number
GB847776A
GB847776A GB11238/59A GB1123859A GB847776A GB 847776 A GB847776 A GB 847776A GB 11238/59 A GB11238/59 A GB 11238/59A GB 1123859 A GB1123859 A GB 1123859A GB 847776 A GB847776 A GB 847776A
Authority
GB
United Kingdom
Prior art keywords
duct
chamber
gas
pump
exhaust
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
GB11238/59A
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.)
WC Heraus GmbH and Co KG
Original Assignee
WC Heraus GmbH and Co KG
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 WC Heraus GmbH and Co KG filed Critical WC Heraus GmbH and Co KG
Publication of GB847776A publication Critical patent/GB847776A/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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/32—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members
    • F04C18/322—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members with vanes hinged to the outer member and reciprocating with respect to the outer member
    • 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
    • F04C2220/00—Application
    • F04C2220/50—Pumps with means for introducing gas under pressure for ballasting
    • 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

Landscapes

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

Abstract

847,776. Rotary pumps. HERAENS G.m.b.H., W. C. April 2, 1959 [May 30, 1958], No. 11238/59. Class 110 (2). A vacuum pump with an oil-sealed eccentrically-moving piston 3 delivering gas to an exhaust-chamber 10 is provided with a gas ballast device 16 connected from outside of the pump to the working-chamber for the intermittent introduction of gas into the working- chamber. The inlet duct 16 is placed centrally in an exhaust valve body 11 and is provided with a valve disc 20, pressed upwardly by springs 21, which closes the duct 16 periodically when the gas ballast duct is being exhausted. Hence no oil can reach the duct when the pump is in operation. Upon completion of the exhaustion, the duct is freed for the entering ballast gas, a slight negative pressure in the pump working chamber raising the valve disc 20. The pump is provided with intake openings 6, 5, 7 by means of an abutment 4 which slides and rocks in an element 8. Exhaust is by way of a port 9 leading to an exhaust chamber 10 through a series of valves 13 and to an oil separator chamber 12, which may be in the form of a cyclone. A lateral duct 19, extending from the oil separator 12, is coupled to the gas ballast duct 17. A shut-off valve 18 is provided as shown.
GB11238/59A 1958-05-30 1959-04-02 Improvements in or relating to rotary vacuum pumps having a gas ballast device Expired GB847776A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE847776X 1958-05-30

Publications (1)

Publication Number Publication Date
GB847776A true GB847776A (en) 1960-09-14

Family

ID=6775407

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11238/59A Expired GB847776A (en) 1958-05-30 1959-04-02 Improvements in or relating to rotary vacuum pumps having a gas ballast device

Country Status (1)

Country Link
GB (1) GB847776A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104481878A (en) * 2014-12-12 2015-04-01 南通诺博特机器人制造有限公司 Slide-valve vacuum pump suitable for vacuum extrusion of tiles
CN108730186A (en) * 2018-05-21 2018-11-02 西安工业大学 A kind of oil-gas separated-type vacuum pump
EP4174316A1 (en) * 2021-10-29 2023-05-03 Agilent Technologies, Inc. Vacuum pump provided with a gas ballast arrangement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104481878A (en) * 2014-12-12 2015-04-01 南通诺博特机器人制造有限公司 Slide-valve vacuum pump suitable for vacuum extrusion of tiles
CN104481878B (en) * 2014-12-12 2016-07-06 南通诺博特机器人制造有限公司 Slide-valve vacuum pump suitable in brick and tile vacuum extruding
CN108730186A (en) * 2018-05-21 2018-11-02 西安工业大学 A kind of oil-gas separated-type vacuum pump
CN108730186B (en) * 2018-05-21 2019-12-13 西安工业大学 Oil-gas separation type vacuum pump
EP4174316A1 (en) * 2021-10-29 2023-05-03 Agilent Technologies, Inc. Vacuum pump provided with a gas ballast arrangement

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