GB8715577D0 - Gas moving device - Google Patents

Gas moving device

Info

Publication number
GB8715577D0
GB8715577D0 GB878715577A GB8715577A GB8715577D0 GB 8715577 D0 GB8715577 D0 GB 8715577D0 GB 878715577 A GB878715577 A GB 878715577A GB 8715577 A GB8715577 A GB 8715577A GB 8715577 D0 GB8715577 D0 GB 8715577D0
Authority
GB
United Kingdom
Prior art keywords
moving device
gas moving
gas
moving
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.)
Withdrawn
Application number
GB878715577A
Other versions
GB2193534A (en
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.)
Peabody Holmes Ltd
Original Assignee
Peabody Holmes 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 Peabody Holmes Ltd filed Critical Peabody Holmes Ltd
Publication of GB8715577D0 publication Critical patent/GB8715577D0/en
Publication of GB2193534A publication Critical patent/GB2193534A/en
Withdrawn legal-status Critical Current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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/126—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
    • 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
    • F04C23/001—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 of similar working principle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
GB08715577A 1986-07-18 1987-07-02 Multi-stage positive displacement gas-moving apparatus Withdrawn GB2193534A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868617612A GB8617612D0 (en) 1986-07-18 1986-07-18 Gas moving device

Publications (2)

Publication Number Publication Date
GB8715577D0 true GB8715577D0 (en) 1987-08-12
GB2193534A GB2193534A (en) 1988-02-10

Family

ID=10601315

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868617612A Pending GB8617612D0 (en) 1986-07-18 1986-07-18 Gas moving device
GB08715577A Withdrawn GB2193534A (en) 1986-07-18 1987-07-02 Multi-stage positive displacement gas-moving apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868617612A Pending GB8617612D0 (en) 1986-07-18 1986-07-18 Gas moving device

Country Status (2)

Country Link
JP (1) JPS6329086A (en)
GB (2) GB8617612D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2645574B2 (en) * 1988-10-07 1997-08-25 株式会社宇野澤組鐵工所 Multi-stage vacuum pump
JPH0518382A (en) * 1991-07-10 1993-01-26 Ebara Corp Screw vacuum pump
JP2537712B2 (en) * 1991-07-10 1996-09-25 株式会社荏原製作所 Screw type vacuum pump
DE69630981T2 (en) * 1995-02-28 2004-12-30 Anest Iwata Corp. Control system for two-stage vacuum pump
JP2000161269A (en) * 1998-11-27 2000-06-13 Toyota Autom Loom Works Ltd Roots pump and pump device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB624326A (en) * 1947-07-02 1949-06-02 Christopher Shorrock Rotary air compressors
GB689818A (en) * 1951-03-12 1953-04-08 Hale Fire Pump Co Foam generator
GB1328847A (en) * 1970-10-05 1973-09-05 Atlas Copco Ab Compressor units comprising rotary positive displacement com pressors
GB1384789A (en) * 1971-05-25 1975-02-19 Tokico Ltd Flowmeter
FR2478223A1 (en) * 1980-03-17 1981-09-18 Worthington Compressors Inc ROTARY COMPRESSOR

Also Published As

Publication number Publication date
GB8617612D0 (en) 1986-08-28
JPS6329086A (en) 1988-02-06
GB2193534A (en) 1988-02-10

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)