GB1148600A - Improvements in and relating to internally meshing gear pumps - Google Patents

Improvements in and relating to internally meshing gear pumps

Info

Publication number
GB1148600A
GB1148600A GB37757/66A GB3775766A GB1148600A GB 1148600 A GB1148600 A GB 1148600A GB 37757/66 A GB37757/66 A GB 37757/66A GB 3775766 A GB3775766 A GB 3775766A GB 1148600 A GB1148600 A GB 1148600A
Authority
GB
United Kingdom
Prior art keywords
filler piece
pump
pin
ring gear
pistons
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
GB37757/66A
Inventor
Otto Eckerle
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1148600A publication Critical patent/GB1148600A/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
    • F04C2/101—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 with a crescent-shaped filler element, located between the inner and outer intermeshing members

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

1,148,600. Internally-meshing gear pumps. O. ECKERLE. Aug. 23, 1966 [Aug. 23, 1965], No. 37757/66. Heading F1F. An internally-meshing gear pump comprising a driven pinion 2, Fig. 1, and a co-rotating floatingly mounted internally toothed ring gear 3 with a filler piece 6 swingably mounted on a pin 5 therebetween, includes a pressure relieved control piston 18 oscillatably supported on a pin 19 and spring-loaded compensating piston 23, 23a to urge the ring gear, filler piece and pinion into engagement with one another to take up wear and without too much friction. Pressure fluid from the highpressure side of the pump passes through radial ports 26 in the ring gear 3 into a relieving zone 17 to counterbalance the high-pressure fluid passing to the discharge port 29 through passages 27, 28 and acting on the rear faces of the pistons 23, 23a. The pin 5 is supported in slide blocks 7, 7a, Fig. 3, each of which is guided in a slot in axial end plates 9, 9a supported by pins 10, 11, 10a, 11a secured in bones in the pump casing and its cover. Recesses in the end plates 9, 9a approximately to the shape of the pump pressure chamber between the pinion and ring gear mount similarly shaped pistons 14, 14a having flanges 15, 15a which seal against the pinion, ring gear and filler piece to seal the pump pressure chamber; pressure fluid from the pump chamber being admitted to behind the pistons through bores (not shown). To remove any tilting moments acting on the filler piece the resultant force R perpendicular to the sealing surface Q on the filler piece between the teeth 30, 31 passes through the axis of the pin 5 and incisions 37 cut on either side of the filler piece 6 also ensures that the resultant force acting on the sealing surface between the teeth 35, 38 passes through the axis of the pin. A groove 32 cut in the filler piece equalizes the pressure in the tooth spaces 33, 34. The provision of the two compensating pistons 23, 23a relieves bending on the control piston 18.
GB37757/66A 1965-08-23 1966-08-23 Improvements in and relating to internally meshing gear pumps Expired GB1148600A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE0029948 1965-08-23

Publications (1)

Publication Number Publication Date
GB1148600A true GB1148600A (en) 1969-04-16

Family

ID=7074207

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37757/66A Expired GB1148600A (en) 1965-08-23 1966-08-23 Improvements in and relating to internally meshing gear pumps

Country Status (3)

Country Link
US (1) US3315608A (en)
DE (1) DE1553027C2 (en)
GB (1) GB1148600A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1191472A (en) * 1967-08-11 1970-05-13 Otto Eckerle Improvements in or relating to High Pressure Internally Meshing Gear Pumps or Motors
GB1243025A (en) * 1967-09-01 1971-08-18 Otto Eckerle Improvements in and relating to hydraulic gear pumps
DE2035575A1 (en) * 1970-07-17 1972-01-27 Eckerle, Otto, 7502 Maisch High pressure small gear pump
US3932302A (en) * 1970-12-08 1976-01-13 Eron Robert E Foam generator
US4132515A (en) * 1975-10-27 1979-01-02 Kruger Heinz W Crescent gear pump or motor having bearing means for supporting the ring gear
DE2942417A1 (en) * 1979-10-19 1981-05-14 Otto Eckerle GmbH & Co KG, 7502 Malsch INTERNAL GEAR MACHINE
US7413424B2 (en) * 2003-06-03 2008-08-19 Brueninghaus Hydromatik Gmbh Gear pump and holding element therefor
DE10325025B4 (en) * 2003-06-03 2005-11-17 Brueninghaus Hydromatik Gmbh Gear pump and retaining member for this
US7556762B2 (en) * 2003-09-17 2009-07-07 Nitto Denko Corporation Method of inflation extrusion molding, extrusion molding apparatus therefor, and process for producing pressure-sensitive adhesive sheet
EP2246566A2 (en) 2009-04-20 2010-11-03 Innas B.V. Axial bearing for use in a hydraulic device, a hydraulic transformer and a vehicle with a hydraulic drive system
CN112814895A (en) * 2021-02-07 2021-05-18 上海涌憬液压机械有限公司 Take bimetallic bearing's crescent gear pump

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE551485C (en) * 1932-06-01 Ludwig Geb Gear spinning pump with two nested gears
US1646615A (en) * 1924-10-02 1927-10-25 Cellocilk Company Pump
US1604802A (en) * 1925-12-11 1926-10-26 Max Ams Chemical Engineering C Pump
US2482713A (en) * 1944-06-27 1949-09-20 Bergen Engineering And Sales C Rotary internal gear pump
US2544144A (en) * 1947-05-07 1951-03-06 Gen Motors Corp Oil burner pump
US2915982A (en) * 1955-02-14 1959-12-08 Crandall Loid Rotary pump
US2875700A (en) * 1955-05-04 1959-03-03 Gen Motors Corp Automatic transmission pump
US3136261A (en) * 1961-10-06 1964-06-09 Eckerle Gear wheel pump
DE1553015B2 (en) * 1963-04-11 1977-04-21 Eckerle, Otto, 7502 Maisch WEAR COMPENSATING, INTERNAL AXLE GEAR PUMP
FR1399932A (en) * 1964-06-26 1965-05-21 Bosch Gmbh Robert Machine such as pump or gear motor
US3270679A (en) * 1964-08-13 1966-09-06 Gen Motors Corp Pump assembly
US3265005A (en) * 1965-04-15 1966-08-09 Howell V Ringgenberg Oil pump

Also Published As

Publication number Publication date
US3315608A (en) 1967-04-25
DE1553027C2 (en) 1983-02-24
DE1553027A1 (en) 1970-03-19

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