GB891017A - Improvements in roots blowers - Google Patents

Improvements in roots blowers

Info

Publication number
GB891017A
GB891017A GB3273559A GB3273559A GB891017A GB 891017 A GB891017 A GB 891017A GB 3273559 A GB3273559 A GB 3273559A GB 3273559 A GB3273559 A GB 3273559A GB 891017 A GB891017 A GB 891017A
Authority
GB
United Kingdom
Prior art keywords
coated
flanks
rotor
rotors
fibres
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
GB3273559A
Inventor
John Henderson Dunlop
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.)
WADE ENGINEERING Ltd
Original Assignee
WADE ENGINEERING 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 WADE ENGINEERING Ltd filed Critical WADE ENGINEERING Ltd
Priority to GB3273559A priority Critical patent/GB891017A/en
Publication of GB891017A publication Critical patent/GB891017A/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
    • F04C27/00—Sealing arrangements in rotary-piston 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
    • 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
    • F04C18/082—Details specially related to intermeshing engagement type pumps
    • F04C18/084—Toothed wheels
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/90—Improving properties of machine parts
    • F04C2230/91—Coating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

891,017. Roots blowers. WADE ENGINEERING Ltd. Dec. 28, 1960 [Sept. 25, 1959], No. 32735/59. Class 110 (2). In a Roots blower, the seal 23 between the rotors is formed by successive pairs of flanks 12, one flank of each pair being coated with fibres 22 perpendicular to the surface, and the other flank of each pair being uncoated. In the drawing, all the coated flanks are on rotor 2, though as an alternative, half the flanks on each rotor may be coated, so that only metal-tocoating contact occurs, that is, all the trailing flanks, or all the leading flanks of both rotors may be coated. In the embodiment, the tips 14 of one rotor do not touch the valleys 16 of the other rotor, and so coating is not needed there. The cylindrical surfaces 24, and end faces of the housing 18 may also be coated. The fibres which form the coating are preferably applied by electrostatic deposition. Specification 687,442 is referred to.
GB3273559A 1959-09-25 1959-09-25 Improvements in roots blowers Expired GB891017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3273559A GB891017A (en) 1959-09-25 1959-09-25 Improvements in roots blowers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3273559A GB891017A (en) 1959-09-25 1959-09-25 Improvements in roots blowers

Publications (1)

Publication Number Publication Date
GB891017A true GB891017A (en) 1962-03-07

Family

ID=10343242

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3273559A Expired GB891017A (en) 1959-09-25 1959-09-25 Improvements in roots blowers

Country Status (1)

Country Link
GB (1) GB891017A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640650A (en) * 1968-07-18 1972-02-08 Maag Zahnraeder & Maschinen Ag Gear tooth system for gear pumps
GB2125485A (en) * 1982-08-10 1984-03-07 Paul William Nachtrieb Rotary positive-displacement fluid-machines
EP1835127A1 (en) 2006-03-14 2007-09-19 Scroll Giken LLC Positive-displacement fluid machine
WO2013167605A3 (en) * 2012-05-08 2014-01-03 Ralf Steffens Spindle compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640650A (en) * 1968-07-18 1972-02-08 Maag Zahnraeder & Maschinen Ag Gear tooth system for gear pumps
GB2125485A (en) * 1982-08-10 1984-03-07 Paul William Nachtrieb Rotary positive-displacement fluid-machines
EP1835127A1 (en) 2006-03-14 2007-09-19 Scroll Giken LLC Positive-displacement fluid machine
WO2013167605A3 (en) * 2012-05-08 2014-01-03 Ralf Steffens Spindle compressor

Similar Documents

Publication Publication Date Title
GB1073029A (en) Improvements relating to rotary hydrodynamic bearings
GB891017A (en) Improvements in roots blowers
GB981482A (en) Improvements in or relating to rotary compressors or gas motors
GB1157797A (en) Rotary Pump for Viscous Fluids
EP0652091A4 (en) Hermetically sealed kneader.
ES484730A1 (en) Seal
GB1455549A (en) Split nut
GB1464323A (en) Rotary positive-displacement pump or motor
GB739870A (en) Improvements in and relating to locking devices for rotor blades of turbines and the like
FR2388161A1 (en) Fan rotor securing system - has pin through hub and shaft, with bend end locking inside hub recess
GB1289473A (en)
GB687442A (en) Improvements in rotary blowers and pumps
GB789674A (en) Improvements in or relating to impellers
GB1253278A (en) Gas turbine engine compressor
Robison Rockers and rollers
GB1104603A (en) Bearing of a miniature electric motor
GB914658A (en) Improvements in or relating to intermeshing screw pumps
GB566812A (en) Improvements in or relating to the packing of shafts
GB794773A (en) A rotary hydraulic motor of the outwardly-sliding vane type
GB1474821A (en) Gear fluid machine
GB856991A (en) Improvements in motors having cooperating rotors
GB1242990A (en) Improvements in and relating to ducting
GB782417A (en) Improvements in or relating to rotors for gas-turbine engines
FR2277998A1 (en) Peristaltic rotary roller pump - has elliptical or diamond-shaped hose cross-section with small hose diameter facing rollers
GB1465021A (en) Externally-meshing gear pump or gear motor