EP 0497931 B1 19950405 - FUEL-INJECTION VALVE AND PROCESS FOR ITS MANUFACTURE.
Title (en)
FUEL-INJECTION VALVE AND PROCESS FOR ITS MANUFACTURE.
Title (de)
EINSPRITZVENTIL UND VERFAHREN ZUR HERSTELLUNG EINES EINSPRITZVENTILS.
Title (fr)
INJECTEUR ET PROCEDE POUR LA FABRICATION D'UN INJECTEUR.
Publication
Application
Priority
- DE 9100589 W 19910717
- DE 4026721 A 19900824
Abstract (en)
[origin: WO9203653A1] In prior art fuel-injection valves, the valve-needle stroke can be adjusted for example by grinding down one end of the valve-nozzle body or by varying the penetration depth of the valve-seat body inserted in a longitudinal aperture in the valve-seat support and subsequently rigidly secured to the valve-seat support. This method of adjustment is not possible with assembled valves however. If the valve-seat body is pressed into the longitudinal aperture, there is a danger of clip formation. In the new fuel-injection valve, a valve assembly comprising the valve-seat body (18) and the perforated body (22) joined to it is inserted in the longitudinal aperture (3) in the valve-seat support (1) and rigidly secured to it, the depth of insertion determining the initial setting of the valve-needle stroke. Exact adjustment of the needle stroke can be done with the assembled valve by bending the part of the valve located between the points of attachment (24, 30) of the perforated body (22) to the valve-seat support. The fuel-injection valve proposed and the method for its manufacture are particularly suitable for use in fuel-injection systems in mixture compressing spark ignition engines.
IPC 1-7
IPC 8 full level
F02M 51/06 (2006.01); F02M 61/16 (2006.01); F02M 61/18 (2006.01); F16K 31/06 (2006.01)
CPC (source: EP KR US)
F02M 51/0682 (2013.01 - EP US); F02M 61/161 (2013.01 - EP US); F02M 61/168 (2013.01 - EP US); F02M 61/18 (2013.01 - KR); F02M 61/1853 (2013.01 - EP US); Y10T 29/49421 (2015.01 - EP US); Y10T 29/49425 (2015.01 - EP US); Y10T 29/49771 (2015.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
WO 9203653 A1 19920305; DE 4026721 A1 19920227; DE 59105118 D1 19950511; EP 0497931 A1 19920812; EP 0497931 B1 19950405; ES 2072002 T3 19950701; JP 3048634 B2 20000605; JP H05501748 A 19930402; KR 100190480 B1 19990601; KR 920702466 A 19920904; RU 2062347 C1 19960620; US 5263648 A 19931123; US 5390411 A 19950221
DOCDB simple family (application)
DE 9100589 W 19910717; DE 4026721 A 19900824; DE 59105118 T 19910717; EP 91912689 A 19910717; ES 91912689 T 19910717; JP 51161191 A 19910717; KR 920700924 A 19920421; SU 5011869 A 19910717; US 10094593 A 19930803; US 84906692 A 19920422