GB1104703A - Improvements in and relating to hydraulic gear pumps and motors - Google Patents

Improvements in and relating to hydraulic gear pumps and motors

Info

Publication number
GB1104703A
GB1104703A GB920365A GB920365A GB1104703A GB 1104703 A GB1104703 A GB 1104703A GB 920365 A GB920365 A GB 920365A GB 920365 A GB920365 A GB 920365A GB 1104703 A GB1104703 A GB 1104703A
Authority
GB
United Kingdom
Prior art keywords
block
ring
pressure
sealing
gears
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
GB920365A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1104703A publication Critical patent/GB1104703A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
    • F01C1/14—Rotary-piston machines or engines 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
    • F01C1/18—Rotary-piston machines or engines 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 similar tooth forms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C2/00—Rotary-piston engines
    • F03C2/08—Rotary-piston engines of intermeshing-engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • 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
    • 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
    • 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
    • F04C2/18—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 similar tooth forms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rotary Pumps (AREA)

Abstract

1,104,703. Gear pumps and motors. ROBERT BOSCH G.m.b.H. March 4, 1965 [March 5, 1964], No. 9203/65. Heading F1F. A hydraulic gear pump (or motor) includes on both sides of intermeshing gears 17, 18, Fig. 1, one piece bearing blocks 15, 16 and between the bearing block 16 and the housing cover 11 a balancing member 13 whose face adjacent the cover is divided by a sealing-ring 27 into a lowpressure area within the ring and a high-pressure area outside the ring with the high-pressure being communicated thereto past a sealing-ring 32 surrounding the block 16 and through the clearance between the block 16 and the inner periphery 14 of the housing 10. Low-pressure is transmitted to the faces of the blocks 15, 16 remote from the gears through a bore 20 through which the driven shaft 22 passes, a groove 25 in block 16, a bore 29 in a shaft 21 and a groove 30 in block 15. A recess 38, Fig. 3, in the periphery of block 16 is open to high-pressure and a recess 36 sealed by a sealing element 37 to low-pressure. Highpressure in the clearance and recess 38 presses the element 37 sealingly against periphery 14. The recesses 36, 38, the positioning of the sealing element 37 and the shape and area of the face of the balancing member 13 outside of the sealing- ring 27 permit the equalization of tilting moments that occur on the bearings and gears. In a modified embodiment, the sealing-ring 32 surrounding the block 16 is replaced by a ring mounted in a groove whose axial distance from the gears 17, 18 varies around the periphery of the block, being a maximum at the low-pressure side of the pump (or motor) and a minimum at the high-pressure side thereof.
GB920365A 1964-03-05 1965-03-04 Improvements in and relating to hydraulic gear pumps and motors Expired GB1104703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0075739 1964-03-05

Publications (1)

Publication Number Publication Date
GB1104703A true GB1104703A (en) 1968-02-28

Family

ID=6978779

Family Applications (1)

Application Number Title Priority Date Filing Date
GB920365A Expired GB1104703A (en) 1964-03-05 1965-03-04 Improvements in and relating to hydraulic gear pumps and motors

Country Status (3)

Country Link
DE (1) DE1528950A1 (en)
FR (1) FR1425731A (en)
GB (1) GB1104703A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112709692A (en) * 2020-12-29 2021-04-27 西安精密机械研究所 Axial compensation mechanism for improving volumetric efficiency of sea water pump and sea water pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112709692A (en) * 2020-12-29 2021-04-27 西安精密机械研究所 Axial compensation mechanism for improving volumetric efficiency of sea water pump and sea water pump
CN112709692B (en) * 2020-12-29 2023-02-17 西安精密机械研究所 Axial compensation mechanism for improving volumetric efficiency of sea water pump and sea water pump

Also Published As

Publication number Publication date
FR1425731A (en) 1966-01-24
DE1528950A1 (en) 1970-04-16

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