EP0316331A1 - Einspritzvorrichtung zum einbringen von kraftstoffen in den brennraum einer brennkraftmaschine. - Google Patents
Einspritzvorrichtung zum einbringen von kraftstoffen in den brennraum einer brennkraftmaschine.Info
- Publication number
- EP0316331A1 EP0316331A1 EP87904836A EP87904836A EP0316331A1 EP 0316331 A1 EP0316331 A1 EP 0316331A1 EP 87904836 A EP87904836 A EP 87904836A EP 87904836 A EP87904836 A EP 87904836A EP 0316331 A1 EP0316331 A1 EP 0316331A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- pressure
- injection
- injection device
- additional
- 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.)
- Granted
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
- F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
-
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Definitions
- Injection device for introducing fuels into the combustion chamber of an internal combustion engine
- the invention relates to an injection device for introducing fuels into the combustion chamber of an internal combustion engine;
- Existing devices of common injection technology which may be considered prior art, such as pump element, pressure relief valve, injection nozzle, pressure line, etc., which have previously only been used to introduce one fuel, are to be used.
- Another solution is based on mixing other fuels in the injection pump and only then feeding them into the injection line (DE-PS 29 32 325).
- the introduction of the alternative fuels works via a separate pump, which builds up the pressure necessary to convey alternative fuels into the area between the pressure relief valve chamber of this pump and the nozzle needle valve chamber of the nozzle during the relaxation phase of the injection pump of the injection system .
- the desired amount of the alternative fuel to be introduced depends on the size of the relief valve, the fuel elasticity and the pressure of the pump and can be designed according to these parameters so that, for. B. a fuel mixture of main and alternative fuels is formed or only alternative fuels or only one alternative fuel are introduced.
- the alternative fuel (s) are required to ignite the internal combustion engine, it is advisable to regulate the amount of fuel to be introduced into the injection system so that it corresponds exactly to the amount injected at this speed.
- the main fuel coming from the injection pump has an oscillating effect, the fuel only moving in front of it, which in the injection phase by the pressure of the injection pump in one direction and the pressure relief phase of the injection pump by the feed pump of the alternative fuel (s) is pushed back again.
- a device can be attached which connects the switching off of the internal combustion engine with a brief delivery of the alternative fuel, so that alternati ⁇ ver for the starting process of the internal combustion engine There is fuel at the nozzle needle tip.
- Figure 1 shows an injection device consisting in a manner known per se of an injection pump, injection line and injection nozzle.
- a pump plunger (11) oscillates in the pump element (1). Via the fuel connection (10), the fuel flows through a bore (16) into the pump element (1) until the lifting pump plunger (11) covers this bore with its upper edge, so that the connection between the connection (10) and the room (19) above the pump ram (11) is interrupted.
- connection (7) is installed in addition to the leakage oil connection (8) which is already present.
- FIG. 2 shows that this connection (8) can also be used directly to introduce a fuel instead of (7). If this connection is blocked, the leakage is automatically conveyed back into the pressure line (4) when its pressure exceeds the stand pressure in the line (4).
- Figure 3 shows that the addition of fuel is introduced via a connection (7) via a check valve (14), first into the space (5) of the nozzle spring, from where it in the above manner outlined in the pressure line (4), passes .
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87904836T ATE63780T1 (de) | 1986-07-30 | 1987-07-24 | Einspritzvorrichtung zum einbringen von kraftstoffen in den brennraum einer brennkraftmaschine. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3625716 | 1986-07-30 | ||
DE3625716 | 1986-07-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0316331A1 true EP0316331A1 (de) | 1989-05-24 |
EP0316331B1 EP0316331B1 (de) | 1991-05-22 |
Family
ID=6306273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87904836A Expired - Lifetime EP0316331B1 (de) | 1986-07-30 | 1987-07-24 | Einspritzvorrichtung zum einbringen von kraftstoffen in den brennraum einer brennkraftmaschine |
Country Status (8)
Country | Link |
---|---|
US (1) | US4825830A (de) |
EP (1) | EP0316331B1 (de) |
AU (1) | AU7753987A (de) |
BR (1) | BR8704171A (de) |
DE (1) | DE3770275D1 (de) |
MX (1) | MX161561A (de) |
RU (1) | RU1838658C (de) |
WO (1) | WO1988001019A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5241935A (en) * | 1988-02-03 | 1993-09-07 | Servojet Electronic Systems, Ltd. | Accumulator fuel injection system |
DE4422552C1 (de) * | 1994-06-28 | 1995-11-30 | Daimler Benz Ag | Verfahren zum Einspritzen von Kraftstoff in den Brennraum einer Brennkraftmaschine |
US5537972A (en) * | 1994-07-28 | 1996-07-23 | Servojet Electronics Systems | Fuel injection system having a pressure intensifier incorporating an overtravel safety feature |
US5833146A (en) * | 1996-09-09 | 1998-11-10 | Caterpillar Inc. | Valve assembly with coupled seats and fuel injector using same |
DE19650559C1 (de) | 1996-12-05 | 1998-03-26 | Mtu Friedrichshafen Gmbh | Anschlußelement zum Einleiten von Brennstoff und einem zweiten Fluid in ein Einspritzventil |
DE19823335C2 (de) * | 1998-05-26 | 2001-05-31 | Elsbett G | Einspritzsystem für den Betrieb mit unterschiedlichen Kraftstoffen |
US8191534B2 (en) * | 2008-02-28 | 2012-06-05 | General Electric Company | High viscosity fuel injection pressure reduction system and method |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE517292C (de) * | 1929-11-23 | 1931-02-03 | Heinrich Lanz Ag | Vorrichtung zum Foerdern verschiedenartiger Fluessigkeiten mittels einer einzigen Pumpe und einer einzigen Druckleitung mit nur einem Druckventil |
DE925139C (de) * | 1950-03-05 | 1955-03-14 | Siegfried Dr-Ing Meurer | Verfahren und Vorrichtung zum Einspritzen von Zusatzstoffen in Dieselmotoren |
DE969853C (de) * | 1952-12-25 | 1958-07-24 | Maschf Augsburg Nuernberg Ag | Einrichtung zur Verwendung verschiedener Brennstoffarten und -mengen bei Einspritzduesen von Brennkraftmaschinen |
FR1313716A (fr) * | 1960-01-22 | 1963-01-04 | Inst Francais Du Petrole | Nouveau dispositif d'injection |
GB1061996A (en) * | 1963-08-28 | 1967-03-15 | Od I Inginerov Morskovo Flota | A valve unit for diesel engine injection systems |
US3308794A (en) * | 1964-12-21 | 1967-03-14 | Caterpillar Tractor Co | Engine fuel system |
JPS5113806B2 (de) * | 1971-10-20 | 1976-05-04 | ||
DE2715137A1 (de) * | 1977-04-05 | 1978-10-19 | Daimler Benz Ag | Kraftstoffeinspritzanlage fuer luftverdichtende brennkraftmaschinen |
ES477347A1 (es) * | 1978-03-21 | 1979-10-16 | Lucas Industries Ltd | Sistema de combustible para un motor de combustion interna policilindrico. |
DE2922682A1 (de) * | 1979-06-02 | 1980-12-04 | Daimler Benz Ag | Einspritzduese fuer luftverdichtende einspritzbrennkraftmaschinen |
US4612905A (en) * | 1980-01-26 | 1986-09-23 | Motoren-Werke Mannheim Ag, Vorm. Benz Stat. Motorenba | Fuel injection apparatus |
DE3012418A1 (de) * | 1980-03-29 | 1981-10-08 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Kraftstoffeinspritzventil fuer brennkraftmaschinen |
DE3117796A1 (de) * | 1981-05-06 | 1982-11-25 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Einspritzsystem zum einspritzen zweier brennstoffe durch eine einspritzduese |
US4481921A (en) * | 1982-05-26 | 1984-11-13 | Nippondenso Co., Ltd. | Fuel injection apparatus of internal combustion engine |
IT1189339B (it) * | 1982-08-18 | 1988-02-04 | Edoardo Costarelli | Essiccatore a coclea,in particolar modo per materiali plastici |
GB2126650B (en) * | 1982-08-31 | 1988-02-10 | George Stan Baranescu | I c engine injection system providing a stratified charge of two fuels |
JPS61171874A (ja) * | 1985-01-28 | 1986-08-02 | Nippon Denso Co Ltd | 2種燃料噴射装置 |
US4693227A (en) * | 1985-05-21 | 1987-09-15 | Toyota Jidosha Kabushiki Kaisha | Multi-fuel injection system for an internal combustion engine |
-
1987
- 1987-07-24 DE DE8787904836T patent/DE3770275D1/de not_active Expired - Lifetime
- 1987-07-24 AU AU77539/87A patent/AU7753987A/en not_active Abandoned
- 1987-07-24 WO PCT/DE1987/000334 patent/WO1988001019A1/de active IP Right Grant
- 1987-07-24 EP EP87904836A patent/EP0316331B1/de not_active Expired - Lifetime
- 1987-07-28 US US07/078,596 patent/US4825830A/en not_active Expired - Fee Related
- 1987-07-29 MX MX7526A patent/MX161561A/es unknown
- 1987-07-30 BR BR8704171A patent/BR8704171A/pt not_active IP Right Cessation
-
1989
- 1989-01-27 RU SU894613507A patent/RU1838658C/ru active
Non-Patent Citations (1)
Title |
---|
See references of WO8801019A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0316331B1 (de) | 1991-05-22 |
DE3770275D1 (de) | 1991-06-27 |
US4825830A (en) | 1989-05-02 |
BR8704171A (pt) | 1988-04-12 |
AU7753987A (en) | 1988-02-24 |
RU1838658C (ru) | 1993-08-30 |
MX161561A (es) | 1990-11-06 |
WO1988001019A1 (en) | 1988-02-11 |
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