GB1382426A - Rotary positive-displacement hydraulic machines - Google Patents

Rotary positive-displacement hydraulic machines

Info

Publication number
GB1382426A
GB1382426A GB1553071A GB1553071A GB1382426A GB 1382426 A GB1382426 A GB 1382426A GB 1553071 A GB1553071 A GB 1553071A GB 1553071 A GB1553071 A GB 1553071A GB 1382426 A GB1382426 A GB 1382426A
Authority
GB
United Kingdom
Prior art keywords
gears
bushes
pressure
port
aperture
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
GB1553071A
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.)
Dowty Hydraulic Units Ltd
Original Assignee
Dowty Hydraulic Units 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 Dowty Hydraulic Units Ltd filed Critical Dowty Hydraulic Units Ltd
Priority to GB1553071A priority Critical patent/GB1382426A/en
Publication of GB1382426A publication Critical patent/GB1382426A/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
    • F04C2/082—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
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump

Abstract

1382426 Rotary positive-displacement machines DOWTY HYDRAULIC UNITS Ltd 18 May 1972 [18 May 1971] 15530/71 Heading F1F In an hydraulic gear-pump, or motor, with axially-pressure-loaded bearing-bushes 20. .23 supporting shafts 16. .19 for the gears 14, 15, the diameter of each bush is sufficiently less than that of a bore 54 in which it is lodged to provide a clearance 55 allowing liquid to flow from the highpressure port 13 into an aperture 50 to lubricate the respective shaft. Liquid issuing from the aperture 50 in each bush flows in opposite directions axially along the shaft into either a chamber 36 or 37 communicating with the low-pressure port 12 through a hole 48 or an annular recess 40, 41, 42 or 43. Pressure-loading chambers 34, 35 are sealed relative to the chambers 36, 37 by rings 31 and communicate with the port 13. Slots 39 determine the circumferential extent of high pressure areas on the faces of the bushes adjacent the gears. The bushes on at least one side of the gears may be united.
GB1553071A 1971-05-18 1971-05-18 Rotary positive-displacement hydraulic machines Expired GB1382426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1553071A GB1382426A (en) 1971-05-18 1971-05-18 Rotary positive-displacement hydraulic machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1553071A GB1382426A (en) 1971-05-18 1971-05-18 Rotary positive-displacement hydraulic machines

Publications (1)

Publication Number Publication Date
GB1382426A true GB1382426A (en) 1975-01-29

Family

ID=10060766

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1553071A Expired GB1382426A (en) 1971-05-18 1971-05-18 Rotary positive-displacement hydraulic machines

Country Status (1)

Country Link
GB (1) GB1382426A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468009A1 (en) * 1979-10-22 1981-04-30 Valmet Oy GEAR PUMP AND / OR MOTOR
FR2474607A1 (en) * 1980-01-29 1981-07-31 Commercial Shearing MACHINE THAT CAN BE USED AS A PUMP OR MOTOR WITH ROTATING PULSES AND PRESSURE PLATE FOR THIS MACHINE
WO1995024560A1 (en) * 1994-03-08 1995-09-14 Alliedsignal Inc. Housing for intermeshing gear pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468009A1 (en) * 1979-10-22 1981-04-30 Valmet Oy GEAR PUMP AND / OR MOTOR
US4395207A (en) * 1979-10-22 1983-07-26 Valmet Oy Gear pump or motor with bearing passage for shaft lubrication
FR2474607A1 (en) * 1980-01-29 1981-07-31 Commercial Shearing MACHINE THAT CAN BE USED AS A PUMP OR MOTOR WITH ROTATING PULSES AND PRESSURE PLATE FOR THIS MACHINE
WO1995024560A1 (en) * 1994-03-08 1995-09-14 Alliedsignal Inc. Housing for intermeshing gear pump

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee