Processing

Please wait...

Settings

Settings

Goto Application

1. WO2004007949 - FUEL NOZZLE OF AN INTERNAL COMBUSTION ENGINE COMPRISING A DIRECT INJECTION NOZZLE

Publication Number WO/2004/007949
Publication Date 22.01.2004
International Application No. PCT/EP2003/006985
International Filing Date 01.07.2003
IPC
F02M 61/08 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
61Fuel injectors not provided for in groups F02M39/-F02M57/94
04having valves
08the valves opening in direction of fuel flow
F02M 61/16 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
61Fuel injectors not provided for in groups F02M39/-F02M57/94
16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02-F02M61/14132
F02M 61/18 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
61Fuel injectors not provided for in groups F02M39/-F02M57/94
16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02-F02M61/14132
18Injection nozzles, e.g. having valve-seats
CPC
F02M 61/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
61Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
04having valves ; , e.g. having a plurality of valves in series
08the valves opening in direction of fuel flow
F02M 61/162
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
61Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
162Means to impart a whirling motion to fuel upstream or near discharging orifices
F02M 61/1873
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
61Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
18Injection nozzles, e.g. having valve seats; ; Details of valve member seated ends, not otherwise provided for
1873Valve seats or member ends having circumferential grooves or ridges, e.g. toroidal
Applicants
  • DAIMLERCHRYLSER AG [DE]/[DE] (AllExceptUS)
  • KADEN, Arnold [DE]/[DE] (UsOnly)
  • KRÜGER, Christian [DE]/[DE] (UsOnly)
  • STEIL, Oliver [DE]/[DE] (UsOnly)
Inventors
  • KADEN, Arnold
  • KRÜGER, Christian
  • STEIL, Oliver
Agents
  • KREISER, André
Priority Data
102 31 583.311.07.2002DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) KRAFTSTOFFEINSPRITZDÜSE EINER BRENNKRAFTMASCHINE MIT DIREKTEINSPRITZDÜSE
(EN) FUEL NOZZLE OF AN INTERNAL COMBUSTION ENGINE COMPRISING A DIRECT INJECTION NOZZLE
(FR) BUSE D'INJECTION DE CARBURANT D'UN MOTEUR A COMBUSTION INTERNE A BUSE D'INJECTION DIRECTE
Abstract
(DE)
Eine Kraftstoffeinspritzdüse zeichnet sich durch einen nach Außen öffnenden Verschlusskörper, ein Düsengehäuse mit einem Düsensitz und eine Düsennadel, wobei bei der Kraftstoffeinspritzdüse der mittels der Düsennadel bewegbare Verschlusskörper an einer Dichtfläche des Düsensitzes während einer Schließposition anliegt, und während einer Betriebsposition nach Außen bewegt wird, so dass der Kraftstoff durch einen ausgebildeten Spalt zwischen dem Düsensitz und dem Verschlusskörper in Form eines Hohlkegels in einen Brennraum der Brennkraftmaschine eingebracht wird, wobei am Düsensitz und/oder am Verschlusskörper im Bereich der Dichtfläche mindestens ein Turbulenzhohlraum vorgesehen ist.
(EN)
The invention relates to a fuel nozzle, characterised by a sealing body that opens to the exterior and a nozzle housing with a nozzle seat and a nozzle needle. According to the invention, the sealing body of the fuel nozzle, which can be displaced by means of the nozzle needle, lies against a sealing surface of the nozzle seat during a closed position and is displaced towards the exterior during an operating position, in such a way that the fuel is introduced through a gap configured between the nozzle seat and the sealing body into a combustion chamber of the internal combustion engine in the form of a hollow cone. At least one turbulence cavity is provided in the nozzle seat and/or the sealing body in the vicinity of the sealing surface.
(FR)
L'invention concerne une buse d'injection de carburant, qui comprend un corps de fermeture s'ouvrant vers l'extérieur, un carter de buse pourvu d'un siège de buse, ainsi qu'une aiguille de buse. Selon l'invention, le corps de fermeture déplaçable au moyen de l'aiguille de buse s'appuie contre une surface d'étanchéité du siège de buse dans une position de fermeture alors que, dans une position de fonctionnement, il est déplacé vers l'extérieur de sorte que le carburant est introduit sous forme d'un cône creux dans une chambre de combustion du moteur à combustion interne par une fente formée entre le siège de buse et le corps de fermeture. Au moins une cavité de turbulence se situe au niveau du siège de buse ou du corps de fermeture, dans la zone de la surface d'étanchéité.
Also published as
Latest bibliographic data on file with the International Bureau