WO2012089436A3 - Internal gear pump - Google Patents

Internal gear pump Download PDF

Info

Publication number
WO2012089436A3
WO2012089436A3 PCT/EP2011/071390 EP2011071390W WO2012089436A3 WO 2012089436 A3 WO2012089436 A3 WO 2012089436A3 EP 2011071390 W EP2011071390 W EP 2011071390W WO 2012089436 A3 WO2012089436 A3 WO 2012089436A3
Authority
WO
WIPO (PCT)
Prior art keywords
internal gear
region
pressure
gear pump
separator
Prior art date
Application number
PCT/EP2011/071390
Other languages
German (de)
French (fr)
Other versions
WO2012089436A2 (en
Inventor
Rene Schepp
Reiner Knoell
Norbert Alaze
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2012089436A2 publication Critical patent/WO2012089436A2/en
Publication of WO2012089436A3 publication Critical patent/WO2012089436A3/en

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
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0007—Radial sealings for working fluid
    • F04C15/0019—Radial sealing elements specially adapted for intermeshing-engagement type machines or pumps, e.g. gear 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F04C15/0049—Equalization of pressure pulses
    • 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
    • F04C2/086—Carter
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/12—Vibration

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

The invention relates to an internal gear pump having a sickle-shaped separator (7) which, in a sickle-shaped pump chamber between an internal gear and a pinion of the internal gear pump, separates a suction region (8) from a pressure region (9). The invention proposes that pilot control ducts (16) be provided in the outer side and in the inner side of the separator (7), which pilot control ducts are open at the pressure-region-side end, that is to say communicate with the pressure region, and taper and end counter to a delivery direction of the internal gear pump. The pilot control ducts (16) effect a continuous pressure rise in tooth spaces of the internal gear and of the pinion from the suction to the pressure region (8, 9), and prevent an abrupt pressure rise at the pressure-region-side end of the separator (7).
PCT/EP2011/071390 2010-12-27 2011-11-30 Internal gear pump WO2012089436A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010064193.6 2010-12-27
DE201010064193 DE102010064193A1 (en) 2010-12-27 2010-12-27 Internal gear pump

Publications (2)

Publication Number Publication Date
WO2012089436A2 WO2012089436A2 (en) 2012-07-05
WO2012089436A3 true WO2012089436A3 (en) 2013-06-20

Family

ID=45349468

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/071390 WO2012089436A2 (en) 2010-12-27 2011-11-30 Internal gear pump

Country Status (2)

Country Link
DE (1) DE102010064193A1 (en)
WO (1) WO2012089436A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012213775A1 (en) 2012-08-03 2014-02-06 Robert Bosch Gmbh Internal gear pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3204564A (en) * 1962-04-06 1965-09-07 Daimler Benz Ag Gear pump
DE1553014A1 (en) * 1963-03-04 1969-08-21 Otto Eckerle Equipment on pumps to reduce the development of noise
EP1503081A1 (en) * 2003-07-31 2005-02-02 Voith Turbo GmbH & Co. KG Hydraulic pump
DE102007049704A1 (en) * 2007-10-17 2009-04-23 Robert Bosch Gmbh Internal gear pump for a brake system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3204564A (en) * 1962-04-06 1965-09-07 Daimler Benz Ag Gear pump
DE1553014A1 (en) * 1963-03-04 1969-08-21 Otto Eckerle Equipment on pumps to reduce the development of noise
EP1503081A1 (en) * 2003-07-31 2005-02-02 Voith Turbo GmbH & Co. KG Hydraulic pump
DE102007049704A1 (en) * 2007-10-17 2009-04-23 Robert Bosch Gmbh Internal gear pump for a brake system

Also Published As

Publication number Publication date
DE102010064193A1 (en) 2012-06-28
WO2012089436A2 (en) 2012-07-05

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