EP 1967730 B1 20091223 - Injection nozzle
Title (en)
Injection nozzle
Title (de)
Einspritzdüse
Title (fr)
Buse à injection
Publication
Application
Priority
- EP 04254231 A 20040715
- EP 03254661 A 20030715
- EP 08157000 A 20040715
Abstract (en)
[origin: EP1967730A1] An injection nozzle for an internal combustion engine, the nozzle comprising: a valve member (30) which is engageable with a seating surface (32), defining a seat cone angle (Ñs), so as to control fuel delivery through a nozzle outlet (36), the valve member (30) including a cylindrical upper region (44), a seat region (46), arranged immediately downstream of the upper region (44), defining a first cone angle (Ñ1), wherein the upper region (44) and the seat region (46) define, at their intersection, a seating line (40) for engagement with the seating surface (32), a second region (48), arranged immediately downstream of the seat region (46), defining a second cone angle (Ñ2), and an end conical region (50), arranged immediately downstream of the second region (48), wherein a first differential angle between the first cone angle (Ñ1) and the seat cone angle (Ñs) is smaller than a second differential angle between the second cone angle (Ñ2) and the seat cone angle (Ñs), said first differential angle being selected to ensure the seating line (40) migrates in a downstream direction along the seat region (46) as the valve member (30) becomes worn, in use, and the second differential angle being selected to prevent said migration of the seating line (40) beyond a pre-determined amount.
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