EP0180576A1 - Procede pour l'injection directe de combustible dans la chambre de combustion dans la tete de cylindre d'un moteur diesel et dispositif pour la mise en oeuvre du procede - Google Patents

Procede pour l'injection directe de combustible dans la chambre de combustion dans la tete de cylindre d'un moteur diesel et dispositif pour la mise en oeuvre du procede

Info

Publication number
EP0180576A1
EP0180576A1 EP84901572A EP84901572A EP0180576A1 EP 0180576 A1 EP0180576 A1 EP 0180576A1 EP 84901572 A EP84901572 A EP 84901572A EP 84901572 A EP84901572 A EP 84901572A EP 0180576 A1 EP0180576 A1 EP 0180576A1
Authority
EP
European Patent Office
Prior art keywords
fuel
combustion chamber
cylinder head
direct injection
diesel engine
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.)
Ceased
Application number
EP84901572A
Other languages
German (de)
English (en)
Inventor
Willy Mahler
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
Publication of EP0180576A1 publication Critical patent/EP0180576A1/fr
Ceased 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/04—Fuel-injectors combined or associated with other devices the devices being combustion-air intake or exhaust valves
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber
    • 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
    • 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

Definitions

  • the present invention relates to a method for injecting fuel directly into the combustion chamber in the cylinder head for a diesel engine, and to a device for carrying out the method.
  • the fuel valve is designed partly as an open, partly as a closed nozzle which is closed off by a needle against the combustion chamber in order to prevent dripping.
  • the injection nozzle and the inlet valve are manufactured separately and are also installed individually and separately from one another. Since the valves are usually mounted perpendicular to the cylinder, the injection nozzle between the intake and exhaust valve had to be installed. It is also known that the combustion chamber in the therefore had to be specially designed to ensure ideal atomization of the fuel. It is known, for example, that a solution could be found in forming the piston crown in the shape of a heart or pan in order to impart a swirl to the air in the combustion chamber with air guiding elements, which improves the atomization of the fuel.
  • the inlet valve and the atomizing nozzle have different functions. ⁇ while the valves for inlet and outlet of the fuel-air mixture, respectively. of the combustion exhaust gases, the atomizing nozzle enables the fuel to be introduced and atomized into the combustion chamber. The more ideally the fuel is atomized in the combustion chamber, the better the combustion.
  • the present invention relates to a method for directly injecting fuel into the combustion chamber in the cylinder head for a diesel engine, and to a device for carrying out the method in which the injection nozzle is mounted in such a way that the atomization of the fuel for direct injection is in the middle of the combustion chamber takes place in the cylinder head, the atomizing nozzle being incorporated in the inlet valve in such a way that it forms a single unit.
  • the purpose of the present invention is to create a single workpiece by means of a new combination of inlet valve and injection nozzle, which enables central assembly above the combustion chamber, as a result of which the fuel is atomized in the middle of the combustion chamber of the cylinder head .
  • the drawing shows a longitudinal section of an inlet valve combined with an injection nozzle in the closed state and is drawn on an enlarged scale
  • the inlet valve with the valve disk 2 is represented by 1.
  • In the inlet valve body 1 is both a bore for the fuel supply 3, "as well as such for the emergence of the nozzle needle taking available k.
  • the nozzle needle is bordered in its upper region to the compression spring 5» which by means of a screw 6 according to need more or less Can be adjusted through the inlet opening 7 - -
  • the injection nozzle is 8 and the so-called cap with the injection holes is 9.
  • the nozzle needle 4 closes the nozzle opening.
  • the function of the nozzle needle 4 is analogous to the previously known designs.
  • the intake valve 1 is confirmed via a rocker arm or via a camshaft and spring, which are not shown here.
  • the inlet valve 1 combined with the injection nozzle 8 form a single unit.
  • the fuel injection also takes place in the vertical direction in such a way that the fuel for direct injection is atomized in the middle of the combustion chamber, which can be referred to as ideal atomization.
  • the main advantages compared to conventional designs are that the injection nozzle in the inlet valve is cooled with the external air drawn in. Additional cooling fins or water channels for cooling the injection nozzle are unnecessary, which can be described as a major advance. With regard to the fuel supply, it must be mentioned that more than a single supply line can also be installed.
  • the present invention represents a real technical advance and is an enrichment in the construction of diesel engines with direct injection.

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

La soupape d'admission (1) ainsi que la buse d'injection (8) pour moteur Diesel sont combinées l'une et l'autre afin de former une seule unité. La vaporisation du combustible pour l'injection directe a lieu au milieu de l'espace de combustion dans la tête de cylindre.
EP84901572A 1984-04-25 1984-04-25 Procede pour l'injection directe de combustible dans la chambre de combustion dans la tete de cylindre d'un moteur diesel et dispositif pour la mise en oeuvre du procede Ceased EP0180576A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH1984/000062 WO1985004927A1 (fr) 1984-04-25 1984-04-25 Procede pour l'injection directe de combustible dans la chambre de combustion dans la tete de cylindre d'un moteur diesel et dispositif pour la mise en oeuvre du procede

Publications (1)

Publication Number Publication Date
EP0180576A1 true EP0180576A1 (fr) 1986-05-14

Family

ID=4541130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84901572A Ceased EP0180576A1 (fr) 1984-04-25 1984-04-25 Procede pour l'injection directe de combustible dans la chambre de combustion dans la tete de cylindre d'un moteur diesel et dispositif pour la mise en oeuvre du procede

Country Status (4)

Country Link
US (1) US4809655A (fr)
EP (1) EP0180576A1 (fr)
IT (1) IT1196145B (fr)
WO (1) WO1985004927A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2341011A1 (fr) 2009-12-29 2011-07-06 Johan Bauwens Emballage pour au moins une portion individuelle d'une composition alimentaire

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5957106A (en) * 1997-10-29 1999-09-28 Caterpillar Inc. Engine having an intake/exhaust valve integrated with a fuel injector
US5934245A (en) * 1997-11-19 1999-08-10 Caterpillar Inc. Two cycle engine having a mono-valve integrated with a fuel injector
US6311668B1 (en) 2000-02-14 2001-11-06 Caterpillar Inc. Monovalve with integrated fuel injector and port control valve, and engine using same
US6443121B1 (en) 2000-06-29 2002-09-03 Caterpillar Inc. Hydraulically actuated gas exchange valve assembly and engine using same
US6474296B2 (en) 2000-12-19 2002-11-05 Caterpillar Inc. Lash adjustment for use with an actuator
KR100412596B1 (ko) * 2001-07-12 2003-12-31 현대자동차주식회사 인젝터가 일체로 형성된 흡기밸브

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1201533A (en) * 1913-08-15 1916-10-17 Frederick Wackenhuth Internal-combustion engine.
US2072437A (en) * 1933-01-06 1937-03-02 Allan R Wurtele Internal combustion engine
US2044522A (en) * 1933-08-23 1936-06-16 Allan R Wurtele Internal combustion engine
US2071719A (en) * 1934-05-09 1937-02-23 Allan R Wurtele Internal combustion engine
US2280386A (en) * 1941-04-09 1942-04-21 Gen Motors Corp Combined engine cylinder valve and fuel injector
GB735834A (en) * 1952-10-28 1955-08-31 Saurer Ag Adolph Improvements in cylinder heads for internal combustion engines
GB748589A (en) * 1954-05-14 1956-05-02 Ronald David Jones Improvements relating to fuel injection internal combustion engines
US3450121A (en) * 1967-02-13 1969-06-17 Hartford Machine Screw Co Internal-combustion engine and fuel injection system therefor
FR2050287A1 (fr) * 1969-07-18 1971-04-02 Planche Camille
US3812829A (en) * 1972-08-18 1974-05-28 A Mccormick Fuel injection system and associated structure
DD129352A1 (de) * 1976-06-25 1978-01-11 Martin Behrens Im zylinderkopf angeordneter verbrennungsraum
DE2809968A1 (de) * 1978-03-08 1979-09-20 Bosch Gmbh Robert Hubkolbenbrennkraftmaschine mit einer kreiszylinderfoermigen brennkammer
DE2913763C2 (de) * 1979-04-05 1983-12-01 Michael G. Dipl.-Ing. ETH 1180 Rolle May Hubkolbenbrennkraftmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8504927A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2341011A1 (fr) 2009-12-29 2011-07-06 Johan Bauwens Emballage pour au moins une portion individuelle d'une composition alimentaire

Also Published As

Publication number Publication date
IT8421410A0 (it) 1984-06-14
US4809655A (en) 1989-03-07
WO1985004927A1 (fr) 1985-11-07
IT1196145B (it) 1988-11-10

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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