GB1262379A - Gear wheel pumps and motors - Google Patents

Gear wheel pumps and motors

Info

Publication number
GB1262379A
GB1262379A GB2461269A GB2461269A GB1262379A GB 1262379 A GB1262379 A GB 1262379A GB 2461269 A GB2461269 A GB 2461269A GB 2461269 A GB2461269 A GB 2461269A GB 1262379 A GB1262379 A GB 1262379A
Authority
GB
United Kingdom
Prior art keywords
diameter
ring
gear
shaft
ports
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
GB2461269A
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 GB1262379A publication Critical patent/GB1262379A/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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Motors (AREA)

Abstract

1,262,379. Rotary pumps and motors. DANFOSS A.S. May 14, 1969 [May 15, 1968] No.24612/69. Heading F1F. An internally meshing gear motor (or pump) of the n and n + 1 tooth type in which an externallytoothed gear 11, Figs. 1 and 2, is keyed to a main shaft 8 and an internally-toothed ring 13 is permitted to orbit without rotation, includes a commutator valve comprising a ported valve plate 12 keyed to the shaft 8 and a fixed ported housing part 3 disposed between housing parts 2 and 4 in which the plate 12 and the gears 11, 13 are respectively located. Inlet and outlet ports 20, 21 or vice versa in a cover 1 connected respectively to a source of pressure liquid and sump communicate respectively with outer and inner annular grooves 22, 23 which co-operate with rings of ports 28, 29 in the valve plate 12. The ports 28, 29, six of each, one for each tooth on the gear 11, open into annular grooves 26, 27 having oppositely directed radial grooves 30, 31 which co-operate with a ring of seven axialpassages 32 in the housing part 3. The openings 33a of the passages 32 adjacent the motor (or pump) displacement chambers 14 are arranged on a circle about the axis of the shaft 8 and are positioned and dimensioned such that each opening in turn is completely covered by the internallytoothed ring when the axis thereof in positioned on that side of the shaft axis diametrically opposite the opening. The diameter of the circle is equal to the greatest diameter of the gear 11 plus the diameter of the orbital path M of the ring 12 and the diameter of the openings 33a equals the diameter of this orbital path. Thus complete sealing is effected between the increasing volume chambers 14 and the decreasing volume chambers 14. Pins 15 located between the teeth on the ring 12 carry sealing members 19 and rollers 16 which orbit in boxes in a disc 5 and end cover 7 respectively.
GB2461269A 1968-05-15 1969-05-14 Gear wheel pumps and motors Expired GB1262379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681703406 DE1703406A1 (en) 1968-05-15 1968-05-15 Hydraulic rotary piston machine

Publications (1)

Publication Number Publication Date
GB1262379A true GB1262379A (en) 1972-02-02

Family

ID=5688405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2461269A Expired GB1262379A (en) 1968-05-15 1969-05-14 Gear wheel pumps and motors

Country Status (3)

Country Link
DE (1) DE1703406A1 (en)
FR (1) FR2008579A1 (en)
GB (1) GB1262379A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104564654A (en) * 2013-10-15 2015-04-29 上海裕顺机械厂 Low-noise long-life turning internal gear pump and manufacturing method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2752036C2 (en) * 1977-11-22 1985-06-27 Danfoss A/S, 6430 Nordborg Rotary piston machine for liquids
DE2829417C3 (en) * 1978-07-05 1984-07-12 Mannesmann Rexroth GmbH, 8770 Lohr Work equipment control for a parallel and internal-axis rotary piston machine
DE3909259A1 (en) * 1989-03-21 1990-09-27 Rexroth Mannesmann Gmbh Hydraulic motor with axial working connections
US5180296A (en) * 1989-03-21 1993-01-19 Mannesmann Rexroth Gmbh Hydraulic machine having axial user ports
DE202006010293U1 (en) 2005-07-22 2006-08-31 Tecan Trading Ag Pipetting device with computer program product for accepting or discarding pipetted liquid samples

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104564654A (en) * 2013-10-15 2015-04-29 上海裕顺机械厂 Low-noise long-life turning internal gear pump and manufacturing method thereof

Also Published As

Publication number Publication date
FR2008579A1 (en) 1970-01-23
DE1703406A1 (en) 1972-03-30

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