EP 0612375 B1 19970618 - VALVE NEEDLE FOR AN ELECTROMAGNETICALLY CONTROLLED VALVE AND PROCESS FOR PRODUCING THE SAME
Title (en)
VALVE NEEDLE FOR AN ELECTROMAGNETICALLY CONTROLLED VALVE AND PROCESS FOR PRODUCING THE SAME
Title (de)
VENTILNADEL FÜR EIN ELEKTROMAGNETISCH BETÄTIGBARES VENTIL UND VERFAHREN ZUR HERSTELLUNG
Title (fr)
POINTEAU POUR UNE SOUPAPE A COMMANDE ELECTROMAGNETIQUE ET SON PROCEDE DE FABRICATION
Publication
Application
Priority
- DE 4230376 A 19920911
- DE 9300759 W 19930820
Abstract (en)
[origin: DE4230376C1] In known electromagnetically controllable valves the valve needle consists of a tubular armature section, a tubular valve sleeve section and a valve closing member section. The armature section is linked to the first end of the valve sleeve section by means of a first solder and the valve closing member section is linked to the other end of the valve sleeve section by means of a second solder. This production process is relatively expensive and costly because of the two soldering operations required. In a new valve needle (58), a tubular actuating part (31) consisting of an armature section (36) and of a valve sleeve section (38) is produced by injection moulding followed by sintering, according to the metal injection moulding process. The actuating part (32) is then linked to a valve closing member section (46) by means of a solder, so that the valve needle (58) can thus be produced in a simple and economical manner. This valve needle is particularly suitable for injection valves in fuel injection systems of internal combustion engines.
IPC 1-7
IPC 8 full level
F02M 51/06 (2006.01); F02M 51/08 (2006.01); F02M 61/16 (2006.01)
CPC (source: EP US)
F02M 51/0682 (2013.01 - EP US); F02M 61/168 (2013.01 - EP US); F02M 2200/8046 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DE 4230376 C1 19930422; DE 59306788 D1 19970724; EP 0612375 A1 19940831; EP 0612375 B1 19970618; ES 2103485 T3 19970916; JP H07501377 A 19950209; KR 100292420 B1 20011022; US 5566920 A 19961022; WO 9407024 A1 19940331
DOCDB simple family (application)
DE 4230376 A 19920911; DE 59306788 T 19930820; DE 9300759 W 19930820; EP 93918902 A 19930820; ES 93918902 T 19930820; JP 50764894 A 19930820; KR 19940701566 A 19940510; US 24070494 A 19940511