EP 0137122 A3 19870304 - FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINES
Title (en)
FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINES
Publication
Application
Priority
DE 3329380 A 19830813
Abstract (en)
[origin: US4605171A] A fuel injection nozzle for internal combustion engines, having an outwardly opening valve needle, which is connected with a piston upon which a damping cap is placed, which is supported on a shoulder integral with the housing. In the damping cap, a damping chamber is formed, which communicates via a throttle conduit with the flow path of the fuel. The diameter of the piston is smaller than the cross section enclosed by the valve seat, as a result of which an annular shoulder is attained, on which the unthrottled fuel pressure acts upon the valve needle in the opening direction. This disposition has the advantage that at lower rpm and smaller fuel quantities, the valve needle can be effectively braked even up to relatively long needle strokes, without the injection duration becoming overly long at higher rpm.
IPC 1-7
IPC 8 full level
F02M 61/08 (2006.01); F02M 61/16 (2006.01); F02M 61/20 (2006.01)
CPC (source: EP US)
F02M 61/08 (2013.01 - EP US); F02M 61/20 (2013.01 - EP US)
Citation (search report)
- [E] EP 0126947 A2 19841205 - BOSCH GMBH ROBERT [DE]
- [A] EP 0084662 A1 19830803 - BOSCH GMBH ROBERT [DE]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0137122 A2 19850417; EP 0137122 A3 19870304; DE 3329380 A1 19850228; JP S6047867 A 19850315; US 4605171 A 19860812
DOCDB simple family (application)
EP 84107560 A 19840629; DE 3329380 A 19830813; JP 15218984 A 19840724; US 60004384 A 19840413