Global Patent Index - EP 1118765 A3

EP 1118765 A3 20031119 - Fuel injector for internal combustion engines

Title (en)

Fuel injector for internal combustion engines

Title (de)

Brennstoffeinspritzventil für Verbrennungskraftmaschinen

Title (fr)

Injecteur de combustible pour moteur à combustion interne

Publication

EP 1118765 A3 20031119 (DE)

Application

EP 00127135 A 20001212

Priority

CH 922000 A 20000119

Abstract (en)

[origin: US2001013556A1] An injection valve member for the closing and opening of injection orifices of a valve seat element is installed longitudinally adjustably in a central housing bore of a fuel injection valve. The opening and closing movement sequence of the injection valve member is controlled by a control device. A control piston operatively connected to the injection valve member is loaded, on the one hand, by the fuel system pressure prevailing in a high-pressure zone and, on the other hand, by the fuel control pressure in a control space. The high-pressure zone includes the central housing bore which is closed off sealingly by a control body fixed to the housing. The control space is arranged between the control body and a piston end face and is at least temporarily delimited radially by a control sleeve which is moveable transversely to the longitudinal axis of the housing. A narrow sliding guide between a control piston part and the control sleeve, said sliding guide separating the control space from the high-pressure zone, forms an accurate longitudinal guide for the control sleeve. The fuel injection valve is simple in terms of manufacture and assembly.

IPC 1-7

F02M 47/02

IPC 8 full level

F02M 61/20 (2006.01); F02M 47/00 (2006.01); F02M 47/02 (2006.01); F02M 61/10 (2006.01); F02M 61/16 (2006.01); F02M 63/00 (2006.01)

CPC (source: EP US)

F02M 47/027 (2013.01 - EP US); F02M 2200/21 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

US 2001013556 A1 20010816; US 6499669 B2 20021231; EP 1118765 A2 20010725; EP 1118765 A3 20031119; JP 2001227435 A 20010824; JP 4606605 B2 20110105

DOCDB simple family (application)

US 76443501 A 20010119; EP 00127135 A 20001212; JP 2001011758 A 20010119