SE8001007L - GEAR WHEEL PUMP AND / OR ENGINE - Google Patents

GEAR WHEEL PUMP AND / OR ENGINE

Info

Publication number
SE8001007L
SE8001007L SE8001007A SE8001007A SE8001007L SE 8001007 L SE8001007 L SE 8001007L SE 8001007 A SE8001007 A SE 8001007A SE 8001007 A SE8001007 A SE 8001007A SE 8001007 L SE8001007 L SE 8001007L
Authority
SE
Sweden
Prior art keywords
pressure
gears
bearing sleeves
faces
sleeves
Prior art date
Application number
SE8001007A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
E Mentteri
Original Assignee
Valmet Oy
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 Valmet Oy filed Critical Valmet Oy
Publication of SE8001007L publication Critical patent/SE8001007L/en

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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps

Landscapes

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

Abstract

Two meshing gears 8, 9 are mounted on shafts 6, 7 supported in a body 1 by means of separate bearing sleeves 11, 12, 13, 14, against which the faces of the gears 8, 9 abut. These sleeves can move in the axial directions of the shafts, and are sealed against the faces of the gears 8, 9 by the pressure prevailing in the gear chamber. The pressure is conducted through pressure- equalizing holes 32 into partial pressure zones isolated from axial equilibration zones by seal members 22, 26, 27, 28. The pressure- equalizing holes 32 are located in the bearing sleeves 11, 12, 13, 14, most suitably at the essentially central point of the pressure increase area corresponding to the approximately operating condition of the device so as to eliminate any undue tilting of the bearing sleeves 11, 12, 13, 14 in varying operating conditions. The plane sides of the bearing sleeves 11, 12, 13, 14, abutting on the faces of the gears 8, 9, have coatings 40 containing PTFE-plastics or other plastics material such that the coatings are at least partially elastic and have a low coefficient of friction against the gears 8 and 9. <IMAGE>
SE8001007A 1979-02-08 1980-02-08 GEAR WHEEL PUMP AND / OR ENGINE SE8001007L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI790420A FI62712C (en) 1979-02-08 1979-02-08 KUGGHJULSPUMP OCH / ELLER -MOTOR

Publications (1)

Publication Number Publication Date
SE8001007L true SE8001007L (en) 1980-08-09

Family

ID=8512374

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8001007A SE8001007L (en) 1979-02-08 1980-02-08 GEAR WHEEL PUMP AND / OR ENGINE

Country Status (7)

Country Link
BR (1) BR8000694A (en)
ES (1) ES488239A1 (en)
FI (1) FI62712C (en)
FR (1) FR2448648A1 (en)
GB (1) GB2042083B (en)
IT (1) IT1140541B (en)
SE (1) SE8001007L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312868C2 (en) * 1983-04-09 1986-03-20 Glyco-Antriebstechnik Gmbh, 6200 Wiesbaden Hydraulic pump
US5244367A (en) * 1990-11-30 1993-09-14 Aeroquip Corporation Gear pump with a resilient means for biasing a side wear plate
DE102007044499A1 (en) 2007-09-18 2009-03-19 Robert Bosch Gmbh Fuel pump, in particular for a fuel system of a piston internal combustion engine
US9874208B2 (en) * 2015-01-21 2018-01-23 Hamilton Sunstrand Corporation Bearing faces with fluid channels for gear pumps

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772638A (en) * 1950-09-13 1956-12-04 John L Nagely Gear pump or motor
GB1148651A (en) * 1965-04-24 1969-04-16 Armstrong Patents Co Ltd Improvements in and relating to gear pumps
FR1532606A (en) * 1967-06-01 1968-07-12 Anti-friction device for pump or rotating hydraulic motor
DE2114874A1 (en) * 1971-03-27 1972-10-12 Dowty Technical Developments Ltd., Brockhampton, Cheltenham (Großbritannien) Hydraulic displacement pump
FR2133280A5 (en) * 1971-04-15 1972-11-24 Hydroperfect Internal Bearing bushes - for hydraulic motors
DE2223325A1 (en) * 1972-05-12 1973-11-22 Valmet Oy GEAR PUMP OR MOTOR

Also Published As

Publication number Publication date
IT8019813A0 (en) 1980-02-08
FR2448648A1 (en) 1980-09-05
ES488239A1 (en) 1980-09-16
FI790420A7 (en) 1980-08-09
FI62712B (en) 1982-10-29
IT1140541B (en) 1986-10-01
BR8000694A (en) 1980-10-14
GB2042083B (en) 1983-02-09
FI62712C (en) 1983-02-10
GB2042083A (en) 1980-09-17

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