ATE168169T1 - MECHANICAL DIAPHRAGM FUEL PUMP WITH STEPPED PISTON FOR SUPPLYING FUEL TO INTERNAL COMBUSTION ENGINES, IN PARTICULAR INJECTION INTERNATIONAL ENGINES - Google Patents

MECHANICAL DIAPHRAGM FUEL PUMP WITH STEPPED PISTON FOR SUPPLYING FUEL TO INTERNAL COMBUSTION ENGINES, IN PARTICULAR INJECTION INTERNATIONAL ENGINES

Info

Publication number
ATE168169T1
ATE168169T1 AT95402748T AT95402748T ATE168169T1 AT E168169 T1 ATE168169 T1 AT E168169T1 AT 95402748 T AT95402748 T AT 95402748T AT 95402748 T AT95402748 T AT 95402748T AT E168169 T1 ATE168169 T1 AT E168169T1
Authority
AT
Austria
Prior art keywords
pump
fuel
engines
international
internal combustion
Prior art date
Application number
AT95402748T
Other languages
German (de)
Inventor
Emile Hunsinger
Jean-Louis Lecetre
Yves Resseguier
Original Assignee
Rivapompe Sa
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 Rivapompe Sa filed Critical Rivapompe Sa
Application granted granted Critical
Publication of ATE168169T1 publication Critical patent/ATE168169T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/046—Arrangements for driving diaphragm-type pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/20—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines characterised by means for preventing vapour lock
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/06—Venting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The pump consists of an upper housing (12) with a fuel inlet pipe (14), an outlet pipe (18) leading to the injection system, and an excess fuel and gas return pipe (16), leading back to the fuel tank. The pump also has a return pipe (38) for surplus fuel from the injection system, situated at the top of the pump housing in line with the pump return pipe (16) and joining it slightly ahead of the pump return orifice (22). The section of the injection system return pipe (38) is made in the shape of a Venturi tube with a section which reduces towards the orifice and in the direction of the fuel flow. The pump also has a pressure regulating accumulator (30), with the two return pipes (16,38) situated above it, comprising a flat membrane with a rigid centre (32) stuck or moulded to its surface.
AT95402748T 1995-02-21 1995-12-06 MECHANICAL DIAPHRAGM FUEL PUMP WITH STEPPED PISTON FOR SUPPLYING FUEL TO INTERNAL COMBUSTION ENGINES, IN PARTICULAR INJECTION INTERNATIONAL ENGINES ATE168169T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9501986A FR2730765B1 (en) 1995-02-21 1995-02-21 MECHANICAL MEMBRANE AND STAGE DISC PUMP FOR FUEL SUPPLY OF HEAT ENGINES, PARTICULARLY INJECTION

Publications (1)

Publication Number Publication Date
ATE168169T1 true ATE168169T1 (en) 1998-07-15

Family

ID=9476355

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95402748T ATE168169T1 (en) 1995-02-21 1995-12-06 MECHANICAL DIAPHRAGM FUEL PUMP WITH STEPPED PISTON FOR SUPPLYING FUEL TO INTERNAL COMBUSTION ENGINES, IN PARTICULAR INJECTION INTERNATIONAL ENGINES

Country Status (4)

Country Link
EP (1) EP0728938B1 (en)
AT (1) ATE168169T1 (en)
DE (1) DE69503351D1 (en)
FR (1) FR2730765B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103671070A (en) * 2013-10-24 2014-03-26 安徽工贸职业技术学院 Fuel pump device of automobile power transmission system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4025910A1 (en) * 1989-12-15 1991-06-20 Gilardini Spa Fuel pump for IC engine - has device to damp pressure fluctuations in deliver chamber
DE4002452A1 (en) * 1990-01-27 1991-08-01 Pierburg Gmbh Fuel pump for engine - has combination of membrane pump and piston pump driven via tappet
DE4311930A1 (en) * 1993-04-10 1994-10-13 Pierburg Gmbh Mechanical fuel pump

Also Published As

Publication number Publication date
FR2730765B1 (en) 1997-05-09
DE69503351D1 (en) 1998-08-13
EP0728938B1 (en) 1998-07-08
EP0728938A1 (en) 1996-08-28
FR2730765A1 (en) 1996-08-23

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties