GB190927457A - Improvements in and relating to Apparatus for Producing High Vacua. - Google Patents

Improvements in and relating to Apparatus for Producing High Vacua.

Info

Publication number
GB190927457A
GB190927457A GB190927457DA GB190927457A GB 190927457 A GB190927457 A GB 190927457A GB 190927457D A GB190927457D A GB 190927457DA GB 190927457 A GB190927457 A GB 190927457A
Authority
GB
United Kingdom
Prior art keywords
rotor
producing
friction
series
rotary pump
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
Inventor
Wolfgang Gaede
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
Application granted granted Critical
Publication of GB190927457A publication Critical patent/GB190927457A/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/168—Pumps specially adapted to produce a vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Positive Displacement Air Blowers (AREA)

Abstract

27,457. Gaede, W. Jan. 2, [Convention date]. Apparatus operating by friction; pumping- machines.-For the purpose of producing very high vacua, a high-speed rotary pump of the type described in the Specification 4733/79, is coupled in series with any form of pump capable of producing a moderately good vacuum. In the rotary pump, energy is imparted to the fluid being pumped solely by friction between it and the surface of the rotor. A rotor A has several plain peripheral grooves which are entered at a point between the inlet and outlet ports f, g by corresponding fixed abutments E. Ports may be so arranged in the stator to connect the grooves in the rotor in series. In the simplest form, the rotor is not grooved at all and one solid abutment divides the annular chamber.
GB190927457D 1909-01-02 1909-01-02 Improvements in and relating to Apparatus for Producing High Vacua. Expired GB190927457A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE190927457X 1909-01-02

Publications (1)

Publication Number Publication Date
GB190927457A true GB190927457A (en) 1910-08-18

Family

ID=32405467

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190927457D Expired GB190927457A (en) 1909-01-02 1909-01-02 Improvements in and relating to Apparatus for Producing High Vacua.

Country Status (1)

Country Link
GB (1) GB190927457A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2620649A1 (en) 2012-01-27 2013-07-31 Edwards Limited Gas transfer vacuum pump
WO2013110936A2 (en) 2012-01-27 2013-08-01 Edwards Ltd Gas transfer vacuum pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2620649A1 (en) 2012-01-27 2013-07-31 Edwards Limited Gas transfer vacuum pump
WO2013110936A2 (en) 2012-01-27 2013-08-01 Edwards Ltd Gas transfer vacuum pump

Similar Documents

Publication Publication Date Title
US2233825A (en) Pump
US1238731A (en) Centrifugal pump.
GB190927457A (en) Improvements in and relating to Apparatus for Producing High Vacua.
US1683962A (en) Pump
CN205260304U (en) Multistage large -traffic vanes pump
US2306951A (en) Pump
US2957423A (en) Pumps
US1350775A (en) Rotary pump
GB190726184A (en) Improvements in Centrifugal and other Fans or Pumps, applicable also to Turbines.
JP6302615B2 (en) Vacuum pump stage
GB832386A (en) Improvements in rotary displacement machines
US1162839A (en) Construction for rotary energy-transformers.
US1680057A (en) Centrifugal pump
GB190629522A (en) Improvements in Axial Flow Rotary Pumps.
GB179043A (en) Improved process of and apparatus for production of high vacua
GB190802083A (en) Improvements in and relating to Pumps and the like.
US526339A (en) Henry a
US1231484A (en) Centrifugal pumping apparatus.
GB191118211A (en) Improvements in or relating to Rotor-wheels for Centrifugal Ejector-pumps.
GB190809191A (en) Improvements relating to Condensing Apparatus.
GB191018808A (en) Improvements in Centrifugal Pumps and Fans.
GB679607A (en) Improvements in high-vacuum molecular pumps
US1012504A (en) Screw-pump.
GB191026030A (en) Improvements in Rotary Pumps and the like.
GB191515231A (en) Improvements in or relating to Rotary Blowers or Pumps.