GB1292825A - A gear type hydraulic pump or motor - Google Patents

A gear type hydraulic pump or motor

Info

Publication number
GB1292825A
GB1292825A GB53540/69A GB5354069A GB1292825A GB 1292825 A GB1292825 A GB 1292825A GB 53540/69 A GB53540/69 A GB 53540/69A GB 5354069 A GB5354069 A GB 5354069A GB 1292825 A GB1292825 A GB 1292825A
Authority
GB
United Kingdom
Prior art keywords
chamber
gears
teeth
passage
pressure
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
GB53540/69A
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.)
FRIEDRICH WILHELM FURST VON HO
HOHENZOLLERN HUETTENVERWALT
Original Assignee
FRIEDRICH WILHELM FURST VON HO
HOHENZOLLERN HUETTENVERWALT
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
Priority claimed from DE19681809445 external-priority patent/DE1809445C3/en
Application filed by FRIEDRICH WILHELM FURST VON HO, HOHENZOLLERN HUETTENVERWALT filed Critical FRIEDRICH WILHELM FURST VON HO
Publication of GB1292825A publication Critical patent/GB1292825A/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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/04—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for reversible 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/08—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the rotational speed
    • 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
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • 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
    • F04C2/084—Toothed wheels
    • 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
    • F04C2/102—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 the two members rotating simultaneously around their respective axes

Landscapes

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

Abstract

1292825 Hydraulic gear pump or motor FRIEDRICH WILHELM FœRST VON HOHENZOLLERN [trading as FURSTLICH HOHENZOLLERNSCHE HœTTENVERWALTUNG LAUCHERTHAL] 31 Oct 1969 [18 Nov 1968] 53540/69 Heading F1F A hydraulic gear pump or motor comprises internally meshing gears 2,3, the numbers of teeth of the two gears differing sufficiently for a crescent-shaped chamber 44 to be formed between the non-engaging teeth, this chamber communicating with the inlet and outlet ports 5,5' through suitably dimensioned leakage gaps so that an intermediate pressure is built up in this chamber to partly counter-balance the thrust due to the pressure on the pressure side. The leakage gaps are produced by extending the ports 5,5' angularly to points slightly less than one tooth division from the point where the teeth of the two gear wheels run out of mesh. Adjustment of the leakage gaps may be achieved by locating the ports 5, 5' in an angularly adjustable end plate. The tooth flanks of the internally toothed gear 2 are preferably arcuate, the remote flanks of adjacent teeth lying on the same cylindrical surface. Axial sealing is effected by a thrust plate 12 biased against the gears by working fluid supplied to areas 22 via passage 49. Fluid leaking across the side faces of the gears is collected in grooves in the casing 1 and plate 12 and is fed therefrom via passages 21,32,33,35,27 and 28 to hydrodynamic bearings 36,36' and 29, the fluid leaking from the bearings being bled off via passages 20 and 11. Pressure fluctuations in chamber 44 are damped by connecting the chamber by a passage 23, Fig.1, to a bore containing a spring loaded plunger Fig.4 (not shown). A regulating and relief valve communicates with passage 33.
GB53540/69A 1968-11-18 1969-10-31 A gear type hydraulic pump or motor Expired GB1292825A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681809445 DE1809445C3 (en) 1968-11-18 Gear pump or motor

Publications (1)

Publication Number Publication Date
GB1292825A true GB1292825A (en) 1972-10-11

Family

ID=5713596

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53540/69A Expired GB1292825A (en) 1968-11-18 1969-10-31 A gear type hydraulic pump or motor

Country Status (10)

Country Link
US (1) US3619093A (en)
AT (2) AT291775B (en)
BE (1) BE740909A (en)
CA (1) CA924577A (en)
CH (1) CH503906A (en)
DK (1) DK135433B (en)
FR (1) FR2023513A1 (en)
GB (1) GB1292825A (en)
NL (1) NL162457C (en)
SE (1) SE355844B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102162444A (en) * 2010-02-17 2011-08-24 蔡希逾 Gerotor hydraulic pump

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3907470A (en) * 1971-08-19 1975-09-23 Hohenzollern Huettenverwalt Gear machine
US4717320A (en) * 1978-05-26 1988-01-05 White Hollis Newcomb Jun Gerotor motor balancing plate
DE2834735A1 (en) * 1978-08-08 1980-02-14 Buehl Volks Raiffeisenbank LIQUID PUMP, ESPECIALLY FOR LIQUIDS OF LOW VISCOSITY, LIKE WATER, ALCOHOLS AND THE LIKE
DE2943948A1 (en) 1979-10-31 1981-05-27 G.L. Rexroth Gmbh, 8770 Lohr HYDROSTATIC GEAR MACHINE
DE3026222A1 (en) * 1980-07-10 1982-02-04 Siegfried Alexander Dipl.-Ing. 7960 Aulendorf Eisenmann GEAR RING PUMP
US5228289A (en) * 1983-06-29 1993-07-20 Peter Norton Plural hydraulic pump system with unloading valve
JPS60501703A (en) * 1983-06-29 1985-10-11 ノ−トン，ピ−タ− System of multiple hydraulic pumps with automatic displacement control
US4760759A (en) * 1986-04-15 1988-08-02 Blake William L Geared ratio coupling
ES2024708B3 (en) * 1986-07-19 1992-03-01 Barmag Barmer Maschf INTERIOR GEAR WHEEL PUMP
JPH0754139B2 (en) * 1987-10-30 1995-06-07 日産自動車株式会社 Automatic transmission oil pump
WO2006086887A1 (en) * 2005-02-16 2006-08-24 Magna Powertrain Inc. Crescent gear pump with novel rotor set
EP1882855A3 (en) * 2006-07-25 2008-04-30 Kinshofer GmbH Hydraulic motor
US20080031759A1 (en) * 2006-08-04 2008-02-07 Thomas Friedrich Hydraulic rotary motor
FR3057609B1 (en) 2016-10-17 2021-01-01 Airbus Helicopters COMBUSTION ENGINE WITH AT LEAST ONE DRY TYPE ENGINE CASING
PL3492715T3 (en) * 2017-11-29 2021-11-22 Airbus Helicopters An internal combustion engine having at least one crankcase of the dry-sump type
CN109869240B (en) * 2017-12-01 2021-03-05 空客直升机 Internal combustion engine with at least one dry sump type crankcase

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2124140A (en) * 1935-08-19 1938-07-19 Foster Frank Geden Engine, pump, meter, and the like
US2159720A (en) * 1936-02-27 1939-05-23 Gunnar A Wahlmark Pump
US2547392A (en) * 1946-04-02 1951-04-03 Myron F Hill Continuous contact internal rotor for engines
US2666336A (en) * 1950-06-10 1954-01-19 Hill Myron Francis Internal gear teeth
US3034446A (en) * 1957-09-06 1962-05-15 Robert W Brundage Hydraulic pump or motor
US3188969A (en) * 1957-09-06 1965-06-15 Robert W Brundage Hydraulic pump or motor
US3198127A (en) * 1959-05-19 1965-08-03 Robert W Brundage Hydraulic pump or motor
US3427983A (en) * 1966-05-31 1969-02-18 Robert W Brundage Pressure balanced bearing loads in hydraulic devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102162444A (en) * 2010-02-17 2011-08-24 蔡希逾 Gerotor hydraulic pump
CN102162444B (en) * 2010-02-17 2013-12-18 蔡希逾 Gerotor hydraulic pump

Also Published As

Publication number Publication date
CA924577A (en) 1973-04-17
DE1809445B2 (en) 1977-05-12
DK135433B (en) 1977-04-25
NL6917310A (en) 1970-05-20
BE740909A (en) 1970-04-01
DK135433C (en) 1977-10-31
AT292464B (en) 1971-08-25
NL162457B (en) 1979-12-17
AT291775B (en) 1971-07-26
DE1809445A1 (en) 1970-06-04
FR2023513A1 (en) 1970-08-21
US3619093A (en) 1971-11-09
CH503906A (en) 1971-02-28
NL162457C (en) 1980-05-16
SE355844B (en) 1973-05-07

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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