EP 0220207 B1 19880608 - FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
Title (en)
FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
Publication
Application
Priority
DE 3515723 A 19850502
Abstract (en)
[origin: WO8606441A1] A fuel injection nozzle for internal combustion engines with a valve needle (26) opening outwards and linked with a piston (46) that limits a damping space (62) filled with fuel, which during the opening stroke is connected with the flow-path of the fuel only via a throttle passage. The damping space (62) is formed by a hood (48) inserted over the piston (46). In the base (58) of the hood (48) is a pressure piece (60) actuated by the fuel which presses directly against the piston (46) during the pre-stroke (hv) and then comes to rest on the hood (48). The pressure piece (60) has a smaller diameter than the piston (46) so that the pre-stroke (hv) of the valve needle (26) is more or less damped at least in the lower rpm and loading range.
IPC 1-7
IPC 8 full level
F02M 61/06 (2006.01); F02M 61/08 (2006.01); F02M 61/20 (2006.01)
CPC (source: EP US)
F02M 61/08 (2013.01 - EP US); F02M 61/205 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 8606441 A1 19861106; DE 3515723 A1 19861106; DE 3660290 D1 19880714; EP 0220207 A1 19870506; EP 0220207 B1 19880608; JP S62502699 A 19871015; US 4730785 A 19880315
DOCDB simple family (application)
DE 8600127 W 19860326; DE 3515723 A 19850502; DE 3660290 T 19860326; EP 86901817 A 19860326; JP 50182886 A 19860326; US 2515186 A 19861205