GB683678A - Improvements in or relating to gear pumps - Google Patents

Improvements in or relating to gear pumps

Info

Publication number
GB683678A
GB683678A GB13050/51A GB1305051A GB683678A GB 683678 A GB683678 A GB 683678A GB 13050/51 A GB13050/51 A GB 13050/51A GB 1305051 A GB1305051 A GB 1305051A GB 683678 A GB683678 A GB 683678A
Authority
GB
United Kingdom
Prior art keywords
bushes
pieces
pump
blades
pressed
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
GB13050/51A
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.)
Borg Warner Corp
Original Assignee
Borg Warner Corp
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 Borg Warner Corp filed Critical Borg Warner Corp
Publication of GB683678A publication Critical patent/GB683678A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0034Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C15/0038Shaft sealings specially adapted for rotary-piston machines or pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023Axial sealings for working fluid
    • F04C15/0026Elements 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)

Abstract

683,678. Rotary pump. BORG-WARNER CORPORATION. June 1, 1951 [June 16, 1950], No. 13050/51. Class 110(ii) In a gear pump having fluid-pressed bushes at one end, for sealing purposes, radial packing pieces are provided to divide up the external. surfaces of the bushes, the areas between such pieces being subjected to different pressures. In general the area opposite the delivery area within the pump, is subjected to fluid at delivery pressure. The packing pieces may be of metal, plastic material, rubber or neoprene. Fig. 2 shows bushes 32, 33 in which fluid under delivery pressure from the pump outlet 35 passes through a duct 36 to act on segmental surfaces 32a, 33a. Three sealing pieces 40, 41, 42 of U-shaped cross-section restrict the pressure areas with the open or lip portions facing towards the right. Semi-circular plates 43, 44, which are slightly thinner than the packing pieces, prevent lateral. movement of the pieces. The latter may be placed off the vertical axis passing through the gear centres. Fluid leaking past the pieces may be vented to the suction side of the pump through a duct 45. A modification, Fig. 5, uses radial pins 51, 54 provided in V-shaped or otherwise shaped grooves 53 of the pressure-loaded bushes 32, 33, the plates 43, 44 being dispensed with. Fig. 7 shows the use of blade-type seals involving a modification of the housing bore. Blades 61, 62, of rectangular cross-section, are supported by two pairs of half rings 63, 64, which act similarly to the plates 43, 44 in Fig. 2, but prevent lateral movement of the blades in either direction, the pump being reversible. Pair of semi-circular. washer-type springs 65, 66 are provided with each pair of half rings and also load the blades to give initial axial pressure against the bushes and thus against the side of the gears. Fig. 9 shows another modification in which bushes 71, 72 contain packing blades pressed upon initially by springs 84. Bushes 74 contain sealing rings and are pressed laterally by spring 75. Further modifications include spring-pressed circular pistons acting as seals or unitary seals of rubber or the like comprising bushes, Fig. 15 (not shown) having integral, radial sealing blades. The bush areas under different pressures may be greater than two, i.e. there may be three or more segmental areas on each bush. Various cross-sections of packing pieces are illustrated in Fig. 21 (not shown).
GB13050/51A 1950-06-16 1951-06-01 Improvements in or relating to gear pumps Expired GB683678A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US683678XA 1950-06-16 1950-06-16

Publications (1)

Publication Number Publication Date
GB683678A true GB683678A (en) 1952-12-03

Family

ID=22082097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13050/51A Expired GB683678A (en) 1950-06-16 1951-06-01 Improvements in or relating to gear pumps

Country Status (1)

Country Link
GB (1) GB683678A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009037100A1 (en) * 2007-09-18 2009-03-26 Robert Bosch Gmbh Fuel pump, in particular for a fuel system of a reciprocating-piston internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009037100A1 (en) * 2007-09-18 2009-03-26 Robert Bosch Gmbh Fuel pump, in particular for a fuel system of a reciprocating-piston internal combustion engine
US8261719B2 (en) 2007-09-18 2012-09-11 Robert Bosch Gmbh Fuel pump, in particular for a fuel system of a piston engine
RU2492348C2 (en) * 2007-09-18 2013-09-10 Роберт Бош Гмбх Fuel pump, mostly for system of power supply of piston internal combustion engine

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