EP 1636482 A1 20060322 - INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
Title (en)
INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
Title (de)
EINSPRITZDUESE FUER BRENNKRAFTMASCHINEN
Title (fr)
BUSE D'INJECTION POUR DES MOTEURS A COMBUSTION INTERNE
Publication
Application
Priority
- EP 2004050785 W 20040513
- DE 10326044 A 20030610
Abstract (en)
[origin: WO2004109091A1] The invention relates to an injection nozzle (1) for an internal combustion engine, comprising a nozzle body (2) which comprises at least one first injection hole (3) and at least one second injection hole (4), a first nozzle needle (7) which is embodied as a hollow needle and which is guided in a first needle guide (6) of the nozzle body (2). Said nozzle needle can control the injection of fuel through the at least one first injection hole (3). Said injection nozzle also comprises a second nozzle needle (9) which is arranged in a coaxial manner on the first nozzle needle (7) and which can control the injection of fuel through the at least one second injection hole (4). In order to simplify control of the second nozzle needle (9), a first carrier contour (19) is formed on the first nozzle needle (7), said first carrier contour co-operating with a second carrier contour (20) formed on the second nozzle needle (9) when opening the first nozzle needle (7) according to a predetermined pre-stroke (24) and, during an opening movement occurring by means of the pre-stroke (24), the first nozzle needle (7) opens the second nozzle needle (9).
IPC 1-7
IPC 8 full level
F02M 45/08 (2006.01); F02M 47/02 (2006.01); F02M 47/06 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP KR US)
F02M 45/08 (2013.01 - KR); F02M 45/083 (2013.01 - EP US); F02M 45/086 (2013.01 - EP US); F02M 47/02 (2013.01 - EP KR US); F02M 47/06 (2013.01 - EP US); F02M 63/0026 (2013.01 - EP US); F02M 2200/46 (2013.01 - EP US)
Citation (search report)
See references of WO 2004109091A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 2004109091 A1 20041216; DE 10326044 A1 20041230; EP 1636482 A1 20060322; JP 2006527332 A 20061130; KR 20060021351 A 20060307; US 2006186226 A1 20060824
DOCDB simple family (application)
EP 2004050785 W 20040513; DE 10326044 A 20030610; EP 04732617 A 20040513; JP 2006516109 A 20040513; KR 20057023581 A 20051209; US 53803105 A 20050608