EP0972941A3 - Gear pump - Google Patents

Gear pump Download PDF

Info

Publication number
EP0972941A3
EP0972941A3 EP99113792A EP99113792A EP0972941A3 EP 0972941 A3 EP0972941 A3 EP 0972941A3 EP 99113792 A EP99113792 A EP 99113792A EP 99113792 A EP99113792 A EP 99113792A EP 0972941 A3 EP0972941 A3 EP 0972941A3
Authority
EP
European Patent Office
Prior art keywords
housing
hydraulic
cogwheel
interacting
engaging
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.)
Withdrawn
Application number
EP99113792A
Other languages
German (de)
French (fr)
Other versions
EP0972941A2 (en
Inventor
Alfredo Gamberini
Luigi Gamberini
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.)
Oleodinamica Gmm Srl
Original Assignee
Oleodinamica Gmm Srl
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 Oleodinamica Gmm Srl filed Critical Oleodinamica Gmm Srl
Publication of EP0972941A2 publication Critical patent/EP0972941A2/en
Publication of EP0972941A3 publication Critical patent/EP0972941A3/en
Withdrawn legal-status Critical Current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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gear Transmission (AREA)
  • Lubricants (AREA)
  • Rotary Pumps (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Wind Motors (AREA)
  • Hydraulic Motors (AREA)

Abstract

The gear hydraulic means (2) includes a housing (12, 20) containing a first and a second cogwheel (4, 6) engaging for interacting with a hydraulic fluid, each wheel (4, 6) being joint to a respective shaft (8, 10) having the ends rotationally supported to said housing (12, 20), and hydraulic sealing means (42, 60) firmly coupled to respective support means (34, 46, 58); a method for producing gear hydraulic means (2) is furthermore provided, including providing a housing (12, 20) suitable to house a first and a second cogwheel (4, 6) engaging for interacting with a hydraulic fluid, providing furthermore a shaft firmly coupled to each wheel and having the ends rotationally supported to said housing (12, 20), and firmly coupling hydraulic sealing means (42, 60) to respective support means (34, 46, 58).
EP99113792A 1998-07-15 1999-07-14 Gear pump Withdrawn EP0972941A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMO980158 1998-07-15
IT1998MO000158 IT1309787B1 (en) 1998-07-15 1998-07-15 GEAR HYDRAULIC VEHICLES

Publications (2)

Publication Number Publication Date
EP0972941A2 EP0972941A2 (en) 2000-01-19
EP0972941A3 true EP0972941A3 (en) 2001-08-08

Family

ID=11386698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99113792A Withdrawn EP0972941A3 (en) 1998-07-15 1999-07-14 Gear pump

Country Status (2)

Country Link
EP (1) EP0972941A3 (en)
IT (1) IT1309787B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011121843A1 (en) * 2011-12-21 2013-06-27 Robert Bosch Gmbh Gear pump has cap that is provided for closing an opening of holes in fluid-tight manner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174435A (en) * 1962-08-16 1965-03-23 Clark Equipment Co Pump or motor
US3213800A (en) * 1965-05-04 1965-10-26 Webster Electric Co Inc Unitary wear plate and seal
US3213799A (en) * 1962-12-26 1965-10-26 Webster Electric Co Inc Rotary pump or motor
US3363578A (en) * 1966-12-21 1968-01-16 Clark Equipment Co Gear pump and thrust plate therefor
US3413927A (en) * 1966-12-21 1968-12-03 Clark Equipment Co Gear pump with balanced pressure loaded thrust plate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174435A (en) * 1962-08-16 1965-03-23 Clark Equipment Co Pump or motor
US3213799A (en) * 1962-12-26 1965-10-26 Webster Electric Co Inc Rotary pump or motor
US3213800A (en) * 1965-05-04 1965-10-26 Webster Electric Co Inc Unitary wear plate and seal
US3363578A (en) * 1966-12-21 1968-01-16 Clark Equipment Co Gear pump and thrust plate therefor
US3413927A (en) * 1966-12-21 1968-12-03 Clark Equipment Co Gear pump with balanced pressure loaded thrust plate

Also Published As

Publication number Publication date
EP0972941A2 (en) 2000-01-19
IT1309787B1 (en) 2002-01-30
ITMO980158A1 (en) 2000-01-15

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