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DE19500184A1 - Fuel injection unit with hot fuel evaporation for piston engines - Google Patents

Fuel injection unit with hot fuel evaporation for piston engines

Info

Publication number
DE19500184A1
DE19500184A1 DE19500184A DE19500184A DE19500184A1 DE 19500184 A1 DE19500184 A1 DE 19500184A1 DE 19500184 A DE19500184 A DE 19500184A DE 19500184 A DE19500184 A DE 19500184A DE 19500184 A1 DE19500184 A1 DE 19500184A1
Authority
DE
Germany
Prior art keywords
fuel
injection
injection unit
piston engines
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.)
Granted
Application number
DE19500184A
Other languages
German (de)
Other versions
DE19500184C2 (en
Inventor
Markus Kalla
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
Application filed by Individual filed Critical Individual
Priority to DE19500184A priority Critical patent/DE19500184C2/en
Publication of DE19500184A1 publication Critical patent/DE19500184A1/en
Application granted granted Critical
Publication of DE19500184C2 publication Critical patent/DE19500184C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/04—Injectors with heating, cooling, or thermally-insulating means
    • F02M53/06—Injectors with heating, cooling, or thermally-insulating means with fuel-heating means, e.g. for vaporising
    • 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
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/16—Other apparatus for heating fuel
    • 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
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/16—Other apparatus for heating fuel
    • F02M31/18—Other apparatus for heating fuel to vaporise fuel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The fuel injection unit is for a piston engine and performs hot evaporation of fuel. The unit has an injection nozzle, which extends through the outlet channel, and is therefore always surrounded by exhaust gases. The shaft of the nozzle holder is lengthened. It may extend into the combustion chamber of the engine.

Description

Einspritzdüsen zerstäuben bei Verbrennungsmotoren den von der Einspritz- oder der Kraftstoffpumpe unter hohem Druck gelieferten Kraftstoff. Das gute Zerstäuben des Kraftstoffs ist besonders bei der Direkteinspritzung von größter Bedeutung und wirkt sich entscheidend auf den weichen Lauf des Motors, die sauberen Abgase und den geringeren Kraftstoffverbrauch aus. Um dies alles zu erreichen wurde bislang ein immer größerer Einspritzdruck angewandt, was zu einer drastischen Verteuerung der Einspritzanlage führte.Injectors atomize the internal combustion engine from the injection or fuel supplied to the fuel pump under high pressure. The good atomization of fuel is of paramount importance, especially in direct injection has a decisive effect on the smooth running of the engine, the clean exhaust gases and the lower fuel consumption. To accomplish all of this So far, an ever increasing injection pressure has been applied, leading to a drastic one Injection system price increases.

Der Erfindung liegt die Aufgabe zugrunde, eine Einspritzanlage zu schaffen, die bei einem relativ niedrigen Einspritzdruck beste Verteilung des Kraftstoffes im Brennraum ermöglicht. Dies geschieht durch die Einspritzung eines flüssigen, weit über den Siedepunkt erhitzten Kraftstoffes, der sich beim Austritt aus der Düse infolge des Druckabfalls sofort in Kraftstoffdampf umwandelt.The invention has for its object to provide an injection system, which a relatively low injection pressure best distribution of the fuel in the Combustion chamber enables. This is done by injecting a liquid, far over the boiling point of the fuel heated when it emerges from the nozzle immediately converted to fuel vapor due to the pressure drop.

Die technische Ausführung sieht demnach wie folgt aus:
Der verlängerte Schaft des Düsenhalters wird durch den vergrößerten Auslaßkanal etwa in der Höhe des Auslaßventils in den Brennraum geführt. Die an die Kraftstoffanlage angeschlossene Einspritzdüse steht unter konstantem, durch die Kraftstoffpumpe erzeugtem Druck, der immer entsprechend höher sein muß, als der zu Beginn des Einspritzvorgangs im Brennraum herrschende.The technical execution looks like this:
The extended shaft of the nozzle holder is guided into the combustion chamber through the enlarged outlet channel at approximately the height of the outlet valve. The injection nozzle connected to the fuel system is under constant pressure generated by the fuel pump, which pressure must always be correspondingly higher than that prevailing in the combustion chamber at the start of the injection process.

Der in der Einspritzdüse unter dem höheren Druck befindliche Kraftstoff wird durch die ausströmenden Abgasen zwar weit über den normalen Siedepunkt erhitzt, bleibt jedoch flüssig. Erst beim Übergang in den Raum mit niedrigerem Druck (Brennraum) erfolgt die sofortige Umwandlung in Kraftstoffdampf. Die Mengenregulierung des einzuspritzenden Kraftstoffs erfolgt hierbei mittels eines in der Düse eingebauten und elektromagnetisch, mechanisch oder hydraulisch gesteuerten Ventils.The fuel in the injector under the higher pressure is exhausted the escaping exhaust gases remain heated far above the normal boiling point however fluid. Only when moving into the room with lower pressure (combustion chamber) the immediate conversion to fuel vapor takes place. The quantity regulation of the The fuel to be injected is carried out by means of a fuel installed in the nozzle and electromagnetically, mechanically or hydraulically controlled valve.

Mit der Erfindung wird bei niedrigerem Einspritzdruck eine wesentlich bessere Verteilung des Kraftstoffs und hierdurch eine "weichere" Verbrennung erreicht, woraus ruhigerer Lauf des Motors, sauberere Abgase und geringerer Kraftstoffverbrauch resultieren.With the invention, at a lower injection pressure, a much better one Distribution of the fuel and thereby achieving a "softer" combustion, resulting in smoother engine running, cleaner exhaust gases and lower Fuel consumption result.

Claims (4)

OberbegriffKennzeichnender TeilOberbegriff des UnteranspruchsKennzeichnender TeilGeneric part of the subclaim Einspritzanlage mit Kraftstoffheißverdampfung für Kolben- Verbrennungsmaschinen
bestehend im wesentlichen aus einer Kraftstoffpumpe sowie Einspritzdüsen mit geänderter Führung und Form.Injection system with hot fuel evaporation for piston internal combustion engines
consisting essentially of a fuel pump and injection nozzles with modified guidance and shape. Dadurch gekennzeichnet, daß die Einspritzdüse durch den Auslaßkanal geführt und hierbei von den Abgasen umspült wird. Characterized in that the injection nozzle is passed through the outlet and thereby lapped by the flue gases. Einspritzanlage nach Anspruch 1.Injection system according to claim 1. Dadurch gekennzeichnet, daß der Schaft des Düsenhalters so verlängert wird, daß er bis in den Brennraum reicht.Characterized in that the shaft of the nozzle holder so is extended that it extends into the combustion chamber.
DE19500184A 1995-01-05 1995-01-05 Injection system with hot fuel evaporation for a piston internal combustion engine Expired - Fee Related DE19500184C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19500184A DE19500184C2 (en) 1995-01-05 1995-01-05 Injection system with hot fuel evaporation for a piston internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19500184A DE19500184C2 (en) 1995-01-05 1995-01-05 Injection system with hot fuel evaporation for a piston internal combustion engine

Publications (2)

Publication Number Publication Date
DE19500184A1 true DE19500184A1 (en) 1996-07-18
DE19500184C2 DE19500184C2 (en) 1997-07-10

Family

ID=7751020

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19500184A Expired - Fee Related DE19500184C2 (en) 1995-01-05 1995-01-05 Injection system with hot fuel evaporation for a piston internal combustion engine

Country Status (1)

Country Link
DE (1) DE19500184C2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999007992A2 (en) 1997-08-05 1999-02-18 Markus Kalla Fuel preheater for a piston internal combustion engine with heat vaporization of the fuel
WO2002097259A1 (en) * 2001-06-01 2002-12-05 Vaporate Pty Ltd Fuel delivery system
WO2004072471A1 (en) * 2003-02-13 2004-08-26 Vaporate Pty Ltd Fuel delivery system
AU2002242486B2 (en) * 2001-06-01 2004-10-28 Vaporate Pty Ltd Fuel delivery system
US6889671B2 (en) 2001-06-01 2005-05-10 Vaporate Pty Ltd Fuel delivery system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19949812A1 (en) * 1999-10-15 2001-04-19 Daimler Chrysler Ag Procedure for operation of common rail IC engine has by supply of thermal energy, temperature of fuel increased above boiling point of fuel when piston is at TDC

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1597060A (en) * 1924-07-05 1926-08-24 Crossley Kenneth Irwin Oil engine
US1709744A (en) * 1923-07-05 1929-04-16 Schnurle Adolf Atomizing oil
JPS58190562A (en) * 1982-04-30 1983-11-07 Toyota Motor Corp Fuel supply device of internal-combustion engine
EP0199632A1 (en) * 1985-04-19 1986-10-29 Societe Alsacienne De Constructions Mecaniques De Mulhouse Fuel injection system for diesel engines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1709744A (en) * 1923-07-05 1929-04-16 Schnurle Adolf Atomizing oil
US1597060A (en) * 1924-07-05 1926-08-24 Crossley Kenneth Irwin Oil engine
JPS58190562A (en) * 1982-04-30 1983-11-07 Toyota Motor Corp Fuel supply device of internal-combustion engine
EP0199632A1 (en) * 1985-04-19 1986-10-29 Societe Alsacienne De Constructions Mecaniques De Mulhouse Fuel injection system for diesel engines

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999007992A2 (en) 1997-08-05 1999-02-18 Markus Kalla Fuel preheater for a piston internal combustion engine with heat vaporization of the fuel
WO1999007992A3 (en) * 1997-08-05 1999-04-15 Markus Kalla Fuel preheater for a piston internal combustion engine with heat vaporization of the fuel
US6213103B1 (en) 1997-08-05 2001-04-10 Markus Kalla Fuel preheater for a piston internal combustion engine with heat vaporization of the fuel
WO2002097259A1 (en) * 2001-06-01 2002-12-05 Vaporate Pty Ltd Fuel delivery system
AU2002242486B2 (en) * 2001-06-01 2004-10-28 Vaporate Pty Ltd Fuel delivery system
US6889671B2 (en) 2001-06-01 2005-05-10 Vaporate Pty Ltd Fuel delivery system
WO2004072471A1 (en) * 2003-02-13 2004-08-26 Vaporate Pty Ltd Fuel delivery system

Also Published As

Publication number Publication date
DE19500184C2 (en) 1997-07-10

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee