EP 1662131 B1 20080123 - Fuel injection nozzle
Title (en)
Fuel injection nozzle
Title (de)
Kraftstoffeinspritzdüse
Title (fr)
Buse d'injection de carburant
Publication
Application
Priority
DE 102004057244 A 20041126
Abstract (en)
[origin: EP1662131A1] Fuel injection nozzle (1) comprises an axially guided piston (16) with a first protrusion (21) entraining an outer nozzle needle (4) in the opening direction and a second protrusion (22) entraining an inner nozzle needle (5), an adjusting drive (18) for displacing the piston, a first control chamber (25) filled with fuel and a second control chamber (27) filled with fuel connected to the first control chamber via a throttle (26). The inner and outer nozzle needles can be displaced relative to the piston in the opening direction against the action of a closing spring (8, 12). Preferred Features: The outer needle nozzle is guided on a chamber wall of the piston chamber on the outer side. The inner needle nozzle is guided on a chamber wall of the piston chamber on the inner side.
IPC 8 full level
F02M 45/08 (2006.01); F02M 61/18 (2006.01)
CPC (source: EP)
F02M 45/086 (2013.01); F02M 61/18 (2013.01); F02M 2200/46 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1662131 A1 20060531; EP 1662131 B1 20080123; DE 102004057244 A1 20060601; DE 502005002645 D1 20080313
DOCDB simple family (application)
EP 05109688 A 20051018; DE 102004057244 A 20041126; DE 502005002645 T 20051018