EP 1498602 A2 20050119 - Injection nozzle
Title (en)
Injection nozzle
Title (de)
Einspritzventil
Title (fr)
Soupape d'injection
Publication
Application
Priority
- EP 04254231 A 20040715
- EP 03254661 A 20030715
Abstract (en)
An injection nozzle for an internal combustion engine includes a valve member, (30) having at least first (44), second (46) and third (48) distinct regions, and being engageable with a seating surface (32), which defines a seat cone angle ( theta s), so as to control fuel delivery through a nozzle outlet (36). The second region provides a seat region (46) of part-conical form, which defines a first cone angle ( theta 1). The third region (48), of part-conical form, is arranged immediately downstream of the seat region (46) and defines a second cone angle ( theta 2), the seat and third regions (46) defining, at their intersection, a seating line (40) for engagement with the seating surface (32). A first differential angle between the first cone angle ( theta 1) and the seat cone angle ( theta s) is greater than a second differential angle between the second cone angle ( theta 2) and the seat cone angle ( theta s), said first and second differential angles being selected to ensure the seating line (40) tends to migrate in an upstream direction along the seat region (46) as the valve member (30) is worn, in use. <IMAGE>
IPC 1-7
IPC 8 full level
F02M 61/18 (2006.01)
CPC (source: EP)
F02M 61/1873 (2013.01); F02M 61/1806 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1967730 A1 20080910; EP 1967730 B1 20091223; AT E400736 T1 20080715; AT E453048 T1 20100115; DE 602004014854 D1 20080821; DE 602004024835 D1 20100204; EP 1498602 A2 20050119; EP 1498602 A3 20050504; EP 1498602 B1 20080709
DOCDB simple family (application)
EP 08157000 A 20040715; AT 04254231 T 20040715; AT 08157000 T 20040715; DE 602004014854 T 20040715; DE 602004024835 T 20040715; EP 04254231 A 20040715