GB336001A - Improvements in pumps for obtaining high vacua - Google Patents

Improvements in pumps for obtaining high vacua

Info

Publication number
GB336001A
GB336001A GB2107529A GB2107529A GB336001A GB 336001 A GB336001 A GB 336001A GB 2107529 A GB2107529 A GB 2107529A GB 2107529 A GB2107529 A GB 2107529A GB 336001 A GB336001 A GB 336001A
Authority
GB
United Kingdom
Prior art keywords
port
pumps
discs
grooves
passes
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
GB2107529A
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.)
EDWIN RODOLPH GROTE
Original Assignee
EDWIN RODOLPH GROTE
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 EDWIN RODOLPH GROTE filed Critical EDWIN RODOLPH GROTE
Priority to GB2107529A priority Critical patent/GB336001A/en
Publication of GB336001A publication Critical patent/GB336001A/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
    • 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

Abstract

336,001. Grote, E. R. July 9, 1929. Fluid-friction apparatus.-The inlet and outlet ports of a molecular pump are formed parallel to the axis of rotation of the rotating member. As shown in Fig. 1 the operating chamber is formed by two grooves C, C<1> in a casing b across each of which is formed a radial partition and which are connected in series by a cavity f. The grooves may also be connected in parallel. The inlet port e opens into the groove C and the outlet e<1> from the groove C<1>. As shown in Fig. 4 the rotating member comprises two discs a<3>, a<4> the peripheries a<5>, a<6> of which are flared to form a narrow slit. The gas enters through a port j, passes through holes i in the disc a<3> and enters a space g between the discs. Thence it passes through the slit and out through the port k.
GB2107529A 1929-07-09 1929-07-09 Improvements in pumps for obtaining high vacua Expired GB336001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2107529A GB336001A (en) 1929-07-09 1929-07-09 Improvements in pumps for obtaining high vacua

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2107529A GB336001A (en) 1929-07-09 1929-07-09 Improvements in pumps for obtaining high vacua

Publications (1)

Publication Number Publication Date
GB336001A true GB336001A (en) 1930-10-09

Family

ID=10156777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2107529A Expired GB336001A (en) 1929-07-09 1929-07-09 Improvements in pumps for obtaining high vacua

Country Status (1)

Country Link
GB (1) GB336001A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324970A (en) * 1964-06-26 1967-06-13 Gen Electric Self-contained viscous pump lubrication system
GB2263311A (en) * 1992-01-14 1993-07-21 Mitsubishi Electric Corp Electric fuel pump.
EP0643227A1 (en) * 1993-09-10 1995-03-15 The BOC Group plc Vacuum pumps
EP0691476A1 (en) * 1994-06-24 1996-01-10 Varian Associates, Inc. Tangential flow pumping channel for turbomolecular pumps
EP0775828A1 (en) * 1992-04-29 1997-05-28 Varian Associates, Inc. Turbomolecular vacuum pumps
EP0874159A2 (en) * 1993-05-03 1998-10-28 Leybold Vakuum GmbH Friction vacuum pump with Gaede pump stage

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324970A (en) * 1964-06-26 1967-06-13 Gen Electric Self-contained viscous pump lubrication system
GB2263311A (en) * 1992-01-14 1993-07-21 Mitsubishi Electric Corp Electric fuel pump.
US5391062A (en) * 1992-01-14 1995-02-21 Mitsubishi Denki Kabushiki Kaisha Electric fuel pump with arcuate relief recess
GB2263311B (en) * 1992-01-14 1995-09-06 Mitsubishi Electric Corp Electric fuel pump
EP0775828A1 (en) * 1992-04-29 1997-05-28 Varian Associates, Inc. Turbomolecular vacuum pumps
EP0874159A2 (en) * 1993-05-03 1998-10-28 Leybold Vakuum GmbH Friction vacuum pump with Gaede pump stage
EP0874159A3 (en) * 1993-05-03 1998-11-18 Leybold Vakuum GmbH Friction vacuum pump with Gaede pump stage
EP0643227A1 (en) * 1993-09-10 1995-03-15 The BOC Group plc Vacuum pumps
US5611660A (en) * 1993-09-10 1997-03-18 The Boc Group Plc Compound vacuum pumps
EP0691476A1 (en) * 1994-06-24 1996-01-10 Varian Associates, Inc. Tangential flow pumping channel for turbomolecular pumps

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