GB1299380A - Improvements in or relating to rotary positive-displacement hydraulic pump or motor assemblies - Google Patents

Improvements in or relating to rotary positive-displacement hydraulic pump or motor assemblies

Info

Publication number
GB1299380A
GB1299380A GB62668/69A GB6266869A GB1299380A GB 1299380 A GB1299380 A GB 1299380A GB 62668/69 A GB62668/69 A GB 62668/69A GB 6266869 A GB6266869 A GB 6266869A GB 1299380 A GB1299380 A GB 1299380A
Authority
GB
United Kingdom
Prior art keywords
ring gear
plate
openings
housing
passageways
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
GB62668/69A
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW Inc
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 TRW Inc filed Critical TRW Inc
Publication of GB1299380A publication Critical patent/GB1299380A/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
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/103—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member one member having simultaneously a rotational movement about its own axis and an orbital movement

Abstract

1299380 Rotary positive-displacement machines TRW Inc 23 Dec 1969 [14 July 1969] 62668/69 Heading F1F In an hydraulic pump, or motor, a gerotor mechanism 27 has a ring gear 29a with tubular teeth 38 engaging with a gear 33 fixed to a rotary shaft 20, planetary motion of the ring gear being controlled by gear teeth 39, 40 thereon and on a housing member 13. To control the flow of working fluid between inlet and outlet openings 43, 44 and pockets 41a to 41g in said mechanism an annular plate 29b is secured to the ring gear by rivets 47, apertures 54a to 54g in the plate being connected to ports 57a to 57g by passageways 56a to 56g in the ring gear. Planetary motion of the plate with the ring gear brings the apertures sequentially and alternately into register with annular grooves 43b, 44b, which are formed in a housing portion 12 and connected to the openings 43, 44. In a second embodiment, Fig.5 (not shown), a further pair of inlet and outlet openings is provided in a housing end-cap and another plate is secured to the other side of the ring gear to control the flow to and from these openings. A third embodiment, Figs.6 to 10 (not shown), has a single pair of inlet and outlet openings, a plate similar to the plate 29b fixed to each side of the ring gear, passageways corresponding to the passageways 56a to 56g formed in a plate lodged between the first-mentioned plate and the ring gear, and a pair of annular grooves on each side of the ring gear corresponding to the grooves 43b, 44b and connected to said openings, the two pairs of grooves being inter-connected by way of the gap between ring gear and the housing and passages in the shaft, respectively. A fourth embodiment, Fig.11 (not shown), is substantially the same as that shown but adapted to drive a road wheel of a vehicle. A fifth embodiment, Fig.12 (not shown), differs from the fourth one chiefly in that the shaft is fixed and the housing rotates.
GB62668/69A 1969-07-14 1969-12-23 Improvements in or relating to rotary positive-displacement hydraulic pump or motor assemblies Expired GB1299380A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84140569A 1969-07-14 1969-07-14

Publications (1)

Publication Number Publication Date
GB1299380A true GB1299380A (en) 1972-12-13

Family

ID=25284801

Family Applications (1)

Application Number Title Priority Date Filing Date
GB62668/69A Expired GB1299380A (en) 1969-07-14 1969-12-23 Improvements in or relating to rotary positive-displacement hydraulic pump or motor assemblies

Country Status (7)

Country Link
US (1) US3627454A (en)
JP (1) JPS5124124B1 (en)
CA (1) CA929415A (en)
DE (1) DE1964978A1 (en)
DK (1) DK140732B (en)
FR (1) FR2056110A5 (en)
GB (1) GB1299380A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726356A (en) * 1969-07-14 1973-04-10 Trw Inc Hydraulic device
US3910733A (en) * 1969-09-18 1975-10-07 Leslie H Grove Rotary mechanism having at least two camming elements
DE2240632C2 (en) * 1972-08-18 1983-09-01 Danfoss A/S, 6430 Nordborg Rotary piston machine for liquids
US3944378A (en) * 1974-11-25 1976-03-16 Mcdermott Hugh L Rotary fluid displacement apparatus with orbiting toothed ring member
US3964842A (en) * 1975-01-20 1976-06-22 Trw Inc. Hydraulic device
EP0038482A3 (en) * 1980-04-09 1982-02-03 Kinshofer, Alfred Annular piston machine
WO1981003046A1 (en) * 1980-04-21 1981-10-29 Zaporozh Kt I Selskokh Mash Planetary hydromotor
WO1982000172A1 (en) * 1980-07-08 1982-01-21 Erasov F Planetary hydromotor
DE3243394C2 (en) * 1982-11-24 1986-07-03 Danfoss A/S, Nordborg Parallel and inner-axis rotary piston machine
US4627801A (en) * 1983-12-19 1986-12-09 Mannesmann Rexroth Gmbh Rotary gear machine with commutator and shaft in flange housing
US4699577A (en) * 1986-05-06 1987-10-13 Parker Hannifin Corporation Internal gear device with improved rotary valve
US5173043A (en) * 1990-01-29 1992-12-22 White Hydraulics, Inc. Reduced size hydraulic motor
ZA93850B (en) * 1992-02-11 1993-02-08 Horton Mfg Co Inc Rotary fluid displacement apparatus
DE19745010C2 (en) * 1997-10-11 1999-08-12 Danfoss As Hydraulic motor
WO2003091082A2 (en) * 2002-04-25 2003-11-06 Bosch Rexroth Ag Hydraulic steering device
DE102007049551A1 (en) * 2007-10-16 2009-04-23 Voulgari-Politou, Ekaterini Hydraulic rotor in toothed ring design with distributor plate integrated into the rotor housing
US8491288B2 (en) * 2009-10-09 2013-07-23 Parker Hannifin Corporation Geroller hydraulic motor with anti-cogging structure

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989951A (en) * 1959-04-29 1961-06-27 Germane Corp Rotary fluid pressure device
US3106163A (en) * 1960-04-04 1963-10-08 Roper Hydraulics Inc Pumps, motors and like devices
US3391608A (en) * 1966-07-11 1968-07-09 Gresen Mfg Company Hydraulic torque motor
US3443378A (en) * 1967-04-04 1969-05-13 Trw Inc Hydrostatic single unit steering system
US3452680A (en) * 1967-08-11 1969-07-01 Trw Inc Hydraulic motor-pump assembly
US3490383A (en) * 1969-01-29 1970-01-20 Koehring Co Hydraulic pump or motor

Also Published As

Publication number Publication date
FR2056110A5 (en) 1971-05-14
US3627454A (en) 1971-12-14
DK140732B (en) 1979-11-05
CA929415A (en) 1973-07-03
DK140732C (en) 1980-04-08
DE1964978A1 (en) 1971-01-28
JPS5124124B1 (en) 1976-07-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee