EP0398020A3 - Internal gear pump - Google Patents

Internal gear pump Download PDF

Info

Publication number
EP0398020A3
EP0398020A3 EP19900106863 EP90106863A EP0398020A3 EP 0398020 A3 EP0398020 A3 EP 0398020A3 EP 19900106863 EP19900106863 EP 19900106863 EP 90106863 A EP90106863 A EP 90106863A EP 0398020 A3 EP0398020 A3 EP 0398020A3
Authority
EP
European Patent Office
Prior art keywords
filler
internal gear
gear pump
pressure
piece
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.)
Granted
Application number
EP19900106863
Other languages
German (de)
French (fr)
Other versions
EP0398020B1 (en
EP0398020A2 (en
Inventor
Max Bartl
Richard Strehler
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.)
Hurth Getriebe und Zahnraeder GmbH
Original Assignee
Carl Hurth Maschinen und Zahnradfabrik GmbH and Co
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 DE19893916155 external-priority patent/DE3916155A1/en
Priority claimed from DE9002160U external-priority patent/DE9002160U1/en
Application filed by Carl Hurth Maschinen und Zahnradfabrik GmbH and Co filed Critical Carl Hurth Maschinen und Zahnradfabrik GmbH and Co
Publication of EP0398020A2 publication Critical patent/EP0398020A2/en
Publication of EP0398020A3 publication Critical patent/EP0398020A3/en
Application granted granted Critical
Publication of EP0398020B1 publication Critical patent/EP0398020B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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)

Abstract

Der Erfindung betrifft eine Innenzahnradpumpe mit einem innenverzahnten Hohlrad (2) und einem damit kämmenden Ritzel (3), bei der in dem sichelförmigen Raum zwischen diesen beiden Rädern ein Füllstück (8) eingesetzt ist. Um ein Flattern des Füllstücks (8) und die damit verbun­ denen Geräusche zu vermeiden wird vorgeschlagen, das Füllstück (8) mittels vom Druckraum (D) in eine Nut (12) in der einen Planseite geleitetes Drucköl mit der ande­ ren Planseite gegen das Pumpengehäuse (1) zu pressen. Mittels eines ebenfalls vom Drucköl beaufschlagten Druck­ stückes kann das Füllstück (8) auch in der Drehrichtung (6) arretiert werden. The invention relates to an internal gear pump with an internally toothed ring gear (2) and a meshing pinion (3), in which a filler (8) is inserted in the crescent-shaped space between these two wheels. In order to avoid fluttering of the filler (8) and the associated noises, it is proposed that the filler (8) be guided by means of the pressure chamber (D) into a groove (12) in one side of the pressure oil with the other side against the pump housing (1) to press. By means of a pressure piece also acted upon by the pressure oil, the filler piece (8) can also be locked in the direction of rotation (6).

EP90106863A 1989-05-18 1990-04-10 Internal gear pump Expired - Lifetime EP0398020B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19893916155 DE3916155A1 (en) 1989-05-18 1989-05-18 Internally-toothed gear pump
DE3916155 1989-05-18
DE9002160U DE9002160U1 (en) 1990-02-23 1990-02-23 Internal gear pump
DE9002160U 1990-02-23

Publications (3)

Publication Number Publication Date
EP0398020A2 EP0398020A2 (en) 1990-11-22
EP0398020A3 true EP0398020A3 (en) 1992-03-04
EP0398020B1 EP0398020B1 (en) 1993-09-22

Family

ID=25880989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106863A Expired - Lifetime EP0398020B1 (en) 1989-05-18 1990-04-10 Internal gear pump

Country Status (4)

Country Link
US (1) US5044905A (en)
EP (1) EP0398020B1 (en)
JP (1) JPH0311176A (en)
DE (1) DE59002796D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1245466B (en) * 1991-03-19 1994-09-20 Iveco Fiat ELECTRIC PUMP FOR THE CIRCULATION OF A LIQUID, FOR EXAMPLE IN AN INTERNAL COMBUSTION ENGINE
JP2604289B2 (en) * 1991-06-30 1997-04-30 株式会社ユー・アール・ディー Constant current power supply method
DE102007049704B4 (en) * 2007-10-17 2019-01-31 Robert Bosch Gmbh Internal gear pump for a brake system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544144A (en) * 1947-05-07 1951-03-06 Gen Motors Corp Oil burner pump
DE2650908A1 (en) * 1976-11-06 1978-05-11 Bosch Gmbh Robert INTERNAL GEAR MACHINE (PUMP OR MOTOR)
DE2533646C2 (en) * 1975-07-28 1986-04-17 Otto Sion Wallis Eckerle High pressure gear pump or motor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1653818A1 (en) * 1967-02-28 1971-06-09 Daimler Benz Ag Internally toothed gear pump, especially for the pressure medium supply of automatically shifting motor vehicle transmissions
DE2313085C2 (en) * 1973-03-16 1984-05-24 Otto 7502 Malsch Eckerle Axially and radially compensated high pressure gear pump
DE2641278A1 (en) * 1976-09-14 1978-03-16 Voith Getriebe Kg INTERNAL GEAR PUMP

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544144A (en) * 1947-05-07 1951-03-06 Gen Motors Corp Oil burner pump
DE2533646C2 (en) * 1975-07-28 1986-04-17 Otto Sion Wallis Eckerle High pressure gear pump or motor
DE2650908A1 (en) * 1976-11-06 1978-05-11 Bosch Gmbh Robert INTERNAL GEAR MACHINE (PUMP OR MOTOR)

Also Published As

Publication number Publication date
EP0398020B1 (en) 1993-09-22
EP0398020A2 (en) 1990-11-22
DE59002796D1 (en) 1993-10-28
JPH0311176A (en) 1991-01-18
US5044905A (en) 1991-09-03

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