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GB1510962A - Vacuum pumps - Google Patents

Vacuum pumps

Info

Publication number
GB1510962A
GB1510962A GB3186474A GB3186474A GB1510962A GB 1510962 A GB1510962 A GB 1510962A GB 3186474 A GB3186474 A GB 3186474A GB 3186474 A GB3186474 A GB 3186474A GB 1510962 A GB1510962 A GB 1510962A
Authority
GB
United Kingdom
Prior art keywords
unit
casing
july
gears
units
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
GB3186474A
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.)
WDM Ltd
Original Assignee
WDM 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 WDM Ltd filed Critical WDM Ltd
Priority to GB3186474A priority Critical patent/GB1510962A/en
Publication of GB1510962A publication Critical patent/GB1510962A/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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/02—Liquid sealing for high-vacuum pumps or for compressors
    • 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
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions

Landscapes

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

Abstract

1510962 Rotary positive-displacement fluidmachines W D M Ltd 18 July 1975 [18 July 1974] 31864/74 Heading F1F Vacuum-pumping apparatus has a casing 10 with least one unit 16 extending between end closures 18, 20 and containing a pair of pump units 12,14 which may be of the sliding-vane type (as shown), the power-input shafts 44 of said units being mutually parallel and connected to a common drive-shaft 50 by way of gears 54, 56. The shafts 44 may have diametral ribs 46 and slots 48 so that with the aid of loose coupling elements, or "dogs", 60 they can be connected without exact axial alignment to the gears 56 and the pump unit(s) in the additional casing unit(s) 16, if provided. The pump units may have a common end-plate 36 attached to the unit 16 and may have inlet and outlet ports 72, 70 connected in series by a conduit 74 and controlled by a non-return valve 78. Alternatively, the ports 72 are connected separately to the enclosure(s) to be evacuated. The casing may be charged wtih oil to a level 92. Gas-ballasting . may be effected through oil inlet passages 94.
GB3186474A 1975-07-18 1975-07-18 Vacuum pumps Expired GB1510962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3186474A GB1510962A (en) 1975-07-18 1975-07-18 Vacuum pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3186474A GB1510962A (en) 1975-07-18 1975-07-18 Vacuum pumps

Publications (1)

Publication Number Publication Date
GB1510962A true GB1510962A (en) 1978-05-17

Family

ID=10329550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3186474A Expired GB1510962A (en) 1975-07-18 1975-07-18 Vacuum pumps

Country Status (1)

Country Link
GB (1) GB1510962A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514081A1 (en) * 1981-10-02 1983-04-08 Pfeiffer Vakuumtechnik COUPLING DEVICE FOR TWO-STAGE ROTARY VANE PUMP
EP0166807A2 (en) * 1984-07-02 1986-01-08 Werner Rietschle Masch.-u. Apparatebau GmbH Rotary vane vacuum pump
EP0350524A1 (en) * 1988-07-14 1990-01-17 Leybold Aktiengesellschaft Multiple gear shift assembly for rotary vacuum pumps
EP0376026A1 (en) * 1988-12-23 1990-07-04 Asea Brown Boveri Ag Positive-displacement machine using the spiral principle
EP0450690A1 (en) * 1990-04-03 1991-10-09 De Boer Stalinrichtingen B.V. Displacer pump
DE4401688A1 (en) * 1994-01-21 1995-07-27 Alois Boerger Rotary pump for fluids which contain solids
DE102012220608B3 (en) * 2012-11-13 2013-11-14 Joma-Polytec Gmbh Pumping device for diagnostic device, has multiple pumps formed as vane pumps, where suction pump and pressure pump are arranged in pumping module, and one of vane pumps is driven by drive motor, where bearing is press fitted on drive shaft
DE202014005521U1 (en) * 2014-07-08 2015-10-09 Joma-Polytec Gmbh Vane pump for generating a negative pressure

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514081A1 (en) * 1981-10-02 1983-04-08 Pfeiffer Vakuumtechnik COUPLING DEVICE FOR TWO-STAGE ROTARY VANE PUMP
DE3139232A1 (en) * 1981-10-02 1983-04-21 Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar CLUTCH ARRANGEMENT FOR 2-STAGE ROTARY VALVE PUMPS
EP0166807A2 (en) * 1984-07-02 1986-01-08 Werner Rietschle Masch.-u. Apparatebau GmbH Rotary vane vacuum pump
EP0166807A3 (en) * 1984-07-02 1987-01-14 Rietschle Masch App Rotary vane vacuum pump
EP0350524A1 (en) * 1988-07-14 1990-01-17 Leybold Aktiengesellschaft Multiple gear shift assembly for rotary vacuum pumps
US5035585A (en) * 1988-07-14 1991-07-30 Leybold Aktiengesellschaft Multiple connector for rotation vacuum pumps
EP0376026A1 (en) * 1988-12-23 1990-07-04 Asea Brown Boveri Ag Positive-displacement machine using the spiral principle
CH676870A5 (en) * 1988-12-23 1991-03-15 Asea Brown Boveri
EP0450690A1 (en) * 1990-04-03 1991-10-09 De Boer Stalinrichtingen B.V. Displacer pump
DE4401688A1 (en) * 1994-01-21 1995-07-27 Alois Boerger Rotary pump for fluids which contain solids
DE102012220608B3 (en) * 2012-11-13 2013-11-14 Joma-Polytec Gmbh Pumping device for diagnostic device, has multiple pumps formed as vane pumps, where suction pump and pressure pump are arranged in pumping module, and one of vane pumps is driven by drive motor, where bearing is press fitted on drive shaft
DE202014005521U1 (en) * 2014-07-08 2015-10-09 Joma-Polytec Gmbh Vane pump for generating a negative pressure

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee