DE69702368T2 - Gear pump - Google Patents

Gear pump

Info

Publication number
DE69702368T2
DE69702368T2 DE69702368T DE69702368T DE69702368T2 DE 69702368 T2 DE69702368 T2 DE 69702368T2 DE 69702368 T DE69702368 T DE 69702368T DE 69702368 T DE69702368 T DE 69702368T DE 69702368 T2 DE69702368 T2 DE 69702368T2
Authority
DE
Germany
Prior art keywords
piston
gears
pump
face
head
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 - Fee Related
Application number
DE69702368T
Other languages
German (de)
Other versions
DE69702368D1 (en
Inventor
Clement Kiefer
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.)
Pierburg Pump Technology France SARL
Original Assignee
Pierburg SARL
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 Pierburg SARL filed Critical Pierburg SARL
Publication of DE69702368D1 publication Critical patent/DE69702368D1/en
Application granted granted Critical
Publication of DE69702368T2 publication Critical patent/DE69702368T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • F04C14/265—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels being obtained by displacing a lateral sealing face

Abstract

The pump has a casing (3) in which are mounted two gears (4,5) which are opposed and engaged and one of which is attached to a drive shaft (20). a hollow cylinder (9) is fixed to one of the lateral walls (7) of the pump and positioned in front of an opening (8) in the lateral wall. The cylinder receives a piston (10) which moves in the axial direction of the gears. The head of the piston, at rest, engages against the front face of the gear teeth under the force of a spring . The head of the piston completely covers the face of one of the gears and the central points of the piston and gear tooth ring are on the same axis. the rear face of the piston is subjected to the hydraulic pressure within the pressure chamber (6) via a passage (13).
DE69702368T 1996-04-17 1997-04-16 Gear pump Expired - Fee Related DE69702368T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9605052A FR2747743A1 (en) 1996-04-17 1996-04-17 GEAR PUMP

Publications (2)

Publication Number Publication Date
DE69702368D1 DE69702368D1 (en) 2000-08-03
DE69702368T2 true DE69702368T2 (en) 2001-03-29

Family

ID=9491465

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69702368T Expired - Fee Related DE69702368T2 (en) 1996-04-17 1997-04-16 Gear pump

Country Status (5)

Country Link
EP (1) EP0802327B1 (en)
AT (1) ATE194212T1 (en)
DE (1) DE69702368T2 (en)
ES (1) ES2147429T3 (en)
FR (1) FR2747743A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ307543B6 (en) * 2017-06-08 2018-11-21 Emil Brabec A piston pump for liquids, especially for more viscous and pastelike media

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6454010B1 (en) 2000-06-01 2002-09-24 Pan Canadian Petroleum Limited Well production apparatus and method
WO2001092673A2 (en) * 2000-06-01 2001-12-06 Pancanadian Petroleum Limited Fluid displacement apparatus and method
US8225873B2 (en) * 2003-02-21 2012-07-24 Davis Raymond C Oil well pump apparatus
AT503856B1 (en) * 2006-06-30 2008-01-15 Tcg Unitech Systemtechnik Gmbh GEAR PUMP WITH CHANGING CONVEYING VOLUME
RU210819U1 (en) * 2022-01-07 2022-05-05 Акционерное общество "Ремдизель" Oil pump of internal combustion engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437791A (en) * 1943-06-26 1948-03-16 Borg Warner Pump with unloading bushing
CH476212A (en) * 1966-06-24 1969-07-31 Schindler Werner Displacement pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ307543B6 (en) * 2017-06-08 2018-11-21 Emil Brabec A piston pump for liquids, especially for more viscous and pastelike media

Also Published As

Publication number Publication date
FR2747743A1 (en) 1997-10-24
EP0802327A1 (en) 1997-10-22
EP0802327B1 (en) 2000-06-28
ES2147429T3 (en) 2000-09-01
DE69702368D1 (en) 2000-08-03
ATE194212T1 (en) 2000-07-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee