EP 1129287 B1 20050518 - INJECTION NOZZLE FOR AN INTERNAL COMBUSTION ENGINE WITH ANNULAR GROOVE IN SAID NOZZLE NEEDLE
Title (en)
INJECTION NOZZLE FOR AN INTERNAL COMBUSTION ENGINE WITH ANNULAR GROOVE IN SAID NOZZLE NEEDLE
Title (de)
EINSPRITZDÜSE FÜR BRENNKRAFTMASCHINEN MIT EINER RINGNUT IN DER DÜSENNADEL
Title (fr)
BUSE D'INJECTION POUR MOTEURS A COMBUSTION INTERNE AVEC POINTEAU POURVU D'UNE RAINURE ANNULAIRE
Publication
Application
Priority
- DE 0002814 W 20000818
- DE 19942370 A 19990904
Abstract (en)
[origin: DE19942370A1] The invention relates to an injection nozzle (1) in which a nozzle needle (5) has an annular groove(8) at the bridge (7) between the pocket hole (2) and the seat of nozzle needle (4). In injection nozzles with seat holes said annular groove (8) is located in the vicinity of or at an injection hole(s) (3). The presence of said annular groove (8) lowers the tolerance of the flow resistance of said injection nozzle (1) when the nozzle needle is partially lifted (5) and enables more exact measurement of the amount of fuel injected to be measured with greater accuracy.
IPC 1-7
IPC 8 full level
F02M 61/10 (2006.01); F02M 61/18 (2006.01)
CPC (source: EP KR US)
F02M 61/18 (2013.01 - KR); F02M 61/1873 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DE 19942370 A1 20010322; DE 50010346 D1 20050623; EP 1129287 A1 20010905; EP 1129287 B1 20050518; JP 2003508684 A 20030304; JP 4709451 B2 20110622; KR 100737712 B1 20070711; KR 20010092436 A 20011024; US 7128280 B1 20061031; WO 0118387 A1 20010315
DOCDB simple family (application)
DE 19942370 A 19990904; DE 0002814 W 20000818; DE 50010346 T 20000818; EP 00965779 A 20000818; JP 2001521894 A 20000818; KR 20017005560 A 20010503; US 83102501 A 20011211