GB1102997A - Improvements in or relating to rotary fluid pressure devices - Google Patents

Improvements in or relating to rotary fluid pressure devices

Info

Publication number
GB1102997A
GB1102997A GB8189/66A GB818966A GB1102997A GB 1102997 A GB1102997 A GB 1102997A GB 8189/66 A GB8189/66 A GB 8189/66A GB 818966 A GB818966 A GB 818966A GB 1102997 A GB1102997 A GB 1102997A
Authority
GB
United Kingdom
Prior art keywords
disc
slots
gear
discs
case
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
GB8189/66A
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.)
Danfoss AS
Original Assignee
Danfoss AS
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 Danfoss AS filed Critical Danfoss AS
Publication of GB1102997A publication Critical patent/GB1102997A/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
    • 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
    • F01C1/10—Rotary-piston machines or engines 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Motors (AREA)
  • Rotary Pumps (AREA)
  • Multiple-Way Valves (AREA)

Abstract

1,102,997. Rotary pumps and motors. DANFOSS A/S. Feb. 24, 1966 [March 5, 1965], No. 8189/66. Heading F1F. A rotary internally-meshing gear pump or motor in which the externally-toothed gear has a smaller number of teeth than the internallytoothed gear and the centre of one of the gears, orbits in a circular path, includes a distributer valve comprising a first valve disc 14, Fig. 1, rivetted to the internally-toothed gear 11 and a second valve disc 3 secured between stationary housing parts 2, 4. The disc 14 is formed with a plurality of radial longitudinally extending slots 17 connected one to each tooth space 19 between the teeth on the gear 11 by drillings 18 and to the disc 3 with pairs of parallel slots 20, 21, Fig.2, which are substantially parallel to the slots 17 and spaced apart equal to or wider than the width of the slot 17. The slots 20 communicate through drillings 22, annular channel 23 with an inlet 24 which in the case of a pump is connected to a lowpressure source and in the case of a motor a high-pressure source, whilst the slots 21 communicate through drillings 25, annular channel 26 with an outlet 27, discharge in the case of a pump and exhaust in the case of a motor. A further disc 13 is rivetted to the other side of the gear 11, so that as the externally-toothed gear 10 is rotated by or rotates, via a splined connection 9 and a shaft 6, the gear 11 together with the discs 13, 14 orbit in a circular path about the centre of the gear 10 with the disc 14 alternately opening and closing the slots 20, 21 in the disc 3 to connect the tooth spaces 19 either with the inlet 24 or the outlet 27. Rollers 16 surrounding bolts 5 securing the housing parts together, co-operate with arcuate recesses on the peripheries of the discs 13, 14 to permit the orbiting of the gear 11 and discs 13, 14. Annular pistons 32, 33 are urged by fluid-pressure transmitted from slots 20, 21 respectively against the disc 13 to pressure balance the separating forces between the discs 14, 3. Instead of the pairs of slots 20, 21 being located in the disc 3. A plurality of slots, e.g., 20 may be located in the disc 3 whilst the slots 21 are located in a similar disc on the other side of the gears.
GB8189/66A 1965-03-05 1966-02-24 Improvements in or relating to rotary fluid pressure devices Expired GB1102997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0046691 1965-03-05

Publications (1)

Publication Number Publication Date
GB1102997A true GB1102997A (en) 1968-02-14

Family

ID=7049892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8189/66A Expired GB1102997A (en) 1965-03-05 1966-02-24 Improvements in or relating to rotary fluid pressure devices

Country Status (7)

Country Link
US (1) US3512905A (en)
CH (1) CH448751A (en)
DE (1) DE1528998A1 (en)
DK (1) DK117880B (en)
GB (1) GB1102997A (en)
NL (1) NL6602656A (en)
SE (1) SE311286B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2447544A1 (en) 1973-10-19 1975-04-30 Trw Inc HYDRAULIC CONTROL
FR2292106A1 (en) * 1974-11-25 1976-06-18 Mac Dermott Hugh ROTATING FLUID MACHINE

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743450A (en) * 1970-02-16 1973-07-03 G Woodling Directly mounted rotary valve on an axial thrust bearing load shaft
US3658450A (en) * 1970-02-16 1972-04-25 George V Woodling Balanced fluid pressure valve means
US3849034A (en) * 1973-01-12 1974-11-19 Gresen Manufacturing Co Orbital device
DE2932728C2 (en) * 1979-08-13 1984-01-26 Danfoss A/S, 6430 Nordborg Rotary piston machine, in particular a motor
DE2934618C2 (en) * 1979-08-28 1983-06-30 Danfoss A/S, 6430 Nordborg Hydraulic torque amplifier for steering devices of motor vehicles
JPS59501989A (en) * 1982-11-01 1984-11-29 ダブリュ−・エッチ・ニコルズ・カンパニ− hydraulic torque device
US4741681A (en) * 1986-05-01 1988-05-03 Bernstrom Marvin L Gerotor motor with valving in gerotor star
US5180296A (en) * 1989-03-21 1993-01-19 Mannesmann Rexroth Gmbh Hydraulic machine having axial user ports
US4976594A (en) * 1989-07-14 1990-12-11 Eaton Corporation Gerotor motor and improved pressure balancing therefor
US5062776A (en) * 1989-08-04 1991-11-05 Parker Hannifin Corporation Commutator for orbiting gerotor-type pumps and motors
DE19520402C2 (en) * 1995-06-08 1999-01-21 Danfoss As Hydraulic rotary piston engine
DE10331979A1 (en) * 2003-07-14 2005-02-17 Gkn Sinter Metals Gmbh Pump with optimized axial clearance
DE102008063500B4 (en) * 2008-12-17 2012-06-14 Sauer-Danfoss Aps Hydraulic machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2823616A (en) * 1948-09-02 1958-02-18 Toyoda Shigeo Horizontal type gear pump
US3026809A (en) * 1956-04-06 1962-03-27 Borg Warner Internal-external gear pump
US2998783A (en) * 1958-04-25 1961-09-05 John C Lee Pressure-balanced gear pump
US3136261A (en) * 1961-10-06 1964-06-09 Eckerle Gear wheel pump
US3309999A (en) * 1965-06-21 1967-03-21 Char Lynn Co Drive mechanism for gerotor gear set
US3270683A (en) * 1965-08-04 1966-09-06 Char Lynn Co Porting arrangement for balancing valve of fluid pressure device
US3272142A (en) * 1965-08-13 1966-09-13 Char Lynn Co Porting and passage arrangement for fluid pressure device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2447544A1 (en) 1973-10-19 1975-04-30 Trw Inc HYDRAULIC CONTROL
DE2462869C2 (en) * 1973-10-19 1983-10-20 TRW Inc., 44117 Cleveland, Ohio Control device for controlling the pressure medium supply to a hydraulic drive device via a directional control slide
FR2292106A1 (en) * 1974-11-25 1976-06-18 Mac Dermott Hugh ROTATING FLUID MACHINE

Also Published As

Publication number Publication date
US3512905A (en) 1970-05-19
CH448751A (en) 1967-12-15
DE1528998A1 (en) 1970-03-19
DK117880B (en) 1970-06-08
SE311286B (en) 1969-06-02
NL6602656A (en) 1966-09-06

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