GB578057A - Improvements in screw displacement pumps - Google Patents

Improvements in screw displacement pumps

Info

Publication number
GB578057A
GB578057A GB637044A GB637044A GB578057A GB 578057 A GB578057 A GB 578057A GB 637044 A GB637044 A GB 637044A GB 637044 A GB637044 A GB 637044A GB 578057 A GB578057 A GB 578057A
Authority
GB
United Kingdom
Prior art keywords
screw displacement
plastic
displacement pumps
metal
screw
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
GB637044A
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.)
GEORGE EWART EDWARD MARSHALL
Stothert and Pitt Ltd
Original Assignee
GEORGE EWART EDWARD MARSHALL
Stothert and Pitt 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 GEORGE EWART EDWARD MARSHALL, Stothert and Pitt Ltd filed Critical GEORGE EWART EDWARD MARSHALL
Priority to GB637044A priority Critical patent/GB578057A/en
Publication of GB578057A publication Critical patent/GB578057A/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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps 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 toothed rotary pistons
    • F04C2/16—Rotary-piston machines or pumps 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 toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

In a screw displacement pump for non-lubricating fluids, especially aviation spirit, the pump body is made of a thermosetting plastic or metal coated with the plastic, and the rotors are made of metal or vice versa. The plastic may be a phenol-formaldehyde condensate and may be of the fabric laminated type.
GB637044A 1944-04-05 1944-04-05 Improvements in screw displacement pumps Expired GB578057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB637044A GB578057A (en) 1944-04-05 1944-04-05 Improvements in screw displacement pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB637044A GB578057A (en) 1944-04-05 1944-04-05 Improvements in screw displacement pumps

Publications (1)

Publication Number Publication Date
GB578057A true GB578057A (en) 1946-06-13

Family

ID=9813262

Family Applications (1)

Application Number Title Priority Date Filing Date
GB637044A Expired GB578057A (en) 1944-04-05 1944-04-05 Improvements in screw displacement pumps

Country Status (1)

Country Link
GB (1) GB578057A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761124A (en) * 1985-03-15 1988-08-02 Svenska Rotor Maskiner Aktiebolag Screw-type rotary machine having at least one rotor made of a plastics material
EP0405160A1 (en) * 1989-06-26 1991-01-02 Allweiler AG Screw rotor pump
FR2668208A1 (en) * 1990-10-22 1992-04-24 Bavouzet Michel PUMP AND / OR ENGINE HYDRAULIC ENGINE OPERATING WITH WATER.
US11649823B2 (en) * 2017-05-03 2023-05-16 Kaeser Kompressoren Se Screw compressor with multi-layered coating of the rotor screws

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761124A (en) * 1985-03-15 1988-08-02 Svenska Rotor Maskiner Aktiebolag Screw-type rotary machine having at least one rotor made of a plastics material
EP0405160A1 (en) * 1989-06-26 1991-01-02 Allweiler AG Screw rotor pump
FR2668208A1 (en) * 1990-10-22 1992-04-24 Bavouzet Michel PUMP AND / OR ENGINE HYDRAULIC ENGINE OPERATING WITH WATER.
EP0484201A1 (en) * 1990-10-22 1992-05-06 Michel Bavouzet Hydraulic gear pump or motor for water operation
US11649823B2 (en) * 2017-05-03 2023-05-16 Kaeser Kompressoren Se Screw compressor with multi-layered coating of the rotor screws

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