EP0133178A3 - Fuel injection device for a two-stroke engine - Google Patents

Fuel injection device for a two-stroke engine Download PDF

Info

Publication number
EP0133178A3
EP0133178A3 EP84870104A EP84870104A EP0133178A3 EP 0133178 A3 EP0133178 A3 EP 0133178A3 EP 84870104 A EP84870104 A EP 84870104A EP 84870104 A EP84870104 A EP 84870104A EP 0133178 A3 EP0133178 A3 EP 0133178A3
Authority
EP
European Patent Office
Prior art keywords
housing
injection device
air pressure
stroke engine
fuel injection
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Withdrawn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
EP84870104A
Other languages
German (de)
French (fr)
Other versions
EP0133178A2 (en
Inventor
Hubert J. F. Antoine
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.)
Individual
Original Assignee
Individual
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 BE0/211260A external-priority patent/BE897407A/en
Application filed by Individual filed Critical Individual
Publication of EP0133178A2 publication Critical patent/EP0133178A2/en
Publication of EP0133178A3 publication Critical patent/EP0133178A3/en
Withdrawn legal-status Critical Current

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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/10—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel peculiar to scavenged two-stroke engines, e.g. injecting into crankcase-pump chamber
    • 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
    • F02M37/12—Feeding by means of driven pumps fluid-driven, e.g. by compressed combustion-air
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/107—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive pneumatic drive, e.g. crankcase pressure drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Abstract

Un piston (20) est déplacé par une paroi mobile (21) qui se meut en fonction de la pression d'air régnant dans le carter de précompression (3) d'un cylindre moteur à deux temps afin d'aspirer une dose parfaitement déterminée de carburant lorsque la pression d'air augmente dans le carter de précom­ pression (3) et de refouler une dose déterminée de carburant vers l'injecteur (9) lorsque la pression d'air diminue dans le carter de précompression. Ce dispositif d'injection est avan­ tageusement intégré au cylindre moteur dans une construc­ tion compacte. A piston (20) is moved by a movable wall (21) which is moves as a function of the air pressure prevailing in the housing precompression (3) of a two-stroke engine cylinder in order suck up a perfectly determined dose of fuel when the air pressure increases in the early housing pressure (3) and to deliver a determined dose of fuel towards the injector (9) when the air pressure decreases in the precompression housing. This injection device is before taggedly integrated into the engine cylinder in a construction compact tion.

EP84870104A 1983-07-28 1984-07-16 Fuel injection device for a two-stroke engine Withdrawn EP0133178A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
BE211260 1983-07-28
BE0/211260A BE897407A (en) 1983-07-28 1983-07-28 FUEL INJECTION DEVICE FOR A TWO-STROKE ENGINE.
BE213014 1984-05-28
BE0/213014A BE899765R (en) 1983-07-28 1984-05-28 FUEL INJECTION DEVICE FOR A TWO-STROKE ENGINE.

Publications (2)

Publication Number Publication Date
EP0133178A2 EP0133178A2 (en) 1985-02-13
EP0133178A3 true EP0133178A3 (en) 1986-07-02

Family

ID=25653722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84870104A Withdrawn EP0133178A3 (en) 1983-07-28 1984-07-16 Fuel injection device for a two-stroke engine

Country Status (3)

Country Link
US (1) US4627390A (en)
EP (1) EP0133178A3 (en)
BE (1) BE899765R (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800862A (en) * 1985-10-07 1989-01-31 Orbital Engine Company Proprietary Limited Control of fuelling rate for internal combustion engines
US4771754A (en) * 1987-05-04 1988-09-20 General Motors Corporation Pneumatic direct cylinder fuel injection system
DE3812949A1 (en) * 1987-08-15 1989-02-23 Stihl Maschf Andreas INJECTION DEVICE FOR TWO-STROKE ENGINES OF PORTABLE TOOLS
DE3727266C2 (en) * 1987-08-15 1996-05-23 Stihl Maschf Andreas Fuel injection device for two-stroke engines
DE3727267C2 (en) * 1987-08-15 1994-03-31 Stihl Maschf Andreas Fuel injection pump for the two-stroke engine of an implement, in particular an engine chain saw
JPH07117019B2 (en) * 1988-04-26 1995-12-18 トヨタ自動車株式会社 2-cycle internal combustion engine
US4934346A (en) * 1989-07-10 1990-06-19 Outboard Marine Corporation Sidewall cylinder entrapment valve for internal combustion chamber
DE4125593A1 (en) * 1991-08-02 1993-02-04 Stihl Maschf Andreas FUEL INJECTION PUMP FOR A TWO-STROKE ENGINE IN A WORKING MACHINE, IN PARTICULAR A MOTOR CHAIN SAW
DE4129574C1 (en) * 1991-09-06 1992-12-10 Fa. Andreas Stihl, 7050 Waiblingen, De
DE4142354C2 (en) * 1991-12-20 2003-04-17 Stihl Maschf Andreas Hand-held implement with an internal combustion engine and an injection pump
JP3148344B2 (en) * 1992-03-19 2001-03-19 ヤマハ発動機株式会社 Crankcase compression two-stroke engine
DE9206687U1 (en) * 1992-05-16 1993-09-16 Stihl Maschf Andreas Injector for a two-stroke engine
DE4223756C2 (en) * 1992-07-18 1997-01-09 Stihl Maschf Andreas Fuel pump for a two-stroke engine
DE19631287B4 (en) * 1996-08-02 2004-01-15 Robert Bosch Gmbh Fuel pump device for two-stroke engines with an additional drive unit
JP4046412B2 (en) * 1997-08-11 2008-02-13 ヤマハマリン株式会社 Engine fuel injector
US6079379A (en) * 1998-04-23 2000-06-27 Design & Manufacturing Solutions, Inc. Pneumatically controlled compressed air assisted fuel injection system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB627611A (en) * 1945-12-18 1949-08-11 Solex Improvements in pneumatically-actuated diaphragm pumps for feeding fuels to internalcombustion engines
US2952252A (en) * 1959-02-24 1960-09-13 Charles F Geatty Automatic fuel injection system
FR2149826A5 (en) * 1971-08-02 1973-03-30 Dresser Investments
BE792343A (en) * 1972-12-06 1973-03-30 Antoine Hubert J F TWO STROKE MOTOR POWER SUPPLY.
FR2155511A5 (en) * 1972-10-02 1973-05-18 Yamaha Motor Co Ltd
GB2010385A (en) * 1977-07-06 1979-06-27 Richardson P Pump

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707143A (en) * 1970-07-27 1972-12-26 Textron Inc Fuel injection system for two cycle engine
US3800754A (en) * 1970-07-27 1974-04-02 Textron Inc Engine fuel injection system
JPS5037806B1 (en) * 1971-03-10 1975-12-05
US3967606A (en) * 1974-06-19 1976-07-06 Perry John C Fuel pump for internal combustion engines
DE2742797A1 (en) * 1977-09-23 1979-04-05 Bosch Gmbh Robert FUEL INJECTION SYSTEM
JPS56146056A (en) * 1980-04-14 1981-11-13 Nippon Denso Co Ltd Fuel injection device
US4482094A (en) * 1983-09-06 1984-11-13 General Motors Corporation Electromagnetic unit fuel injector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB627611A (en) * 1945-12-18 1949-08-11 Solex Improvements in pneumatically-actuated diaphragm pumps for feeding fuels to internalcombustion engines
US2952252A (en) * 1959-02-24 1960-09-13 Charles F Geatty Automatic fuel injection system
FR2149826A5 (en) * 1971-08-02 1973-03-30 Dresser Investments
FR2155511A5 (en) * 1972-10-02 1973-05-18 Yamaha Motor Co Ltd
BE792343A (en) * 1972-12-06 1973-03-30 Antoine Hubert J F TWO STROKE MOTOR POWER SUPPLY.
GB2010385A (en) * 1977-07-06 1979-06-27 Richardson P Pump

Also Published As

Publication number Publication date
BE899765R (en) 1984-09-17
US4627390A (en) 1986-12-09
EP0133178A2 (en) 1985-02-13

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