EP 0733162 B1 19981014 - METHOD OF MANUFACTURING A MAGNETIC CIRCUIT FOR A VALVE
Title (en)
METHOD OF MANUFACTURING A MAGNETIC CIRCUIT FOR A VALVE
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES MAGNETKREISES FÜR EIN VENTIL
Title (fr)
PROCEDE DE PRODUCTION D'UN CIRCUIT MAGNETIQUE POUR SOUPAPE
Publication
Application
Priority
- DE 9500522 W 19950413
- DE 4432525 A 19940913
Abstract (en)
[origin: US5687468A] PCT No. PCT/DE95/00522 Sec. 371 Date Sep. 11, 1996 Sec. 102(e) Date Sep. 11, 1996 PCT Filed Apr. 13, 1995 PCT Pub. No. WO96/08647 PCT Pub. Date Mar. 21, 1996The process for manufacturing a magnetic circuit for a valve represents a particularly cost-effective version with minimized material use. For this purpose, a single-part valve housing has a groove, where a non-magnetic intermediate ring is placed. An axial pressing force is applied on the intermediate ring using a pressing tool, radially displacing the material of the intermediate ring and the valve housing. With a simple machining operation, valve house material is removed from an opening, so that the internal field and the valve jacket are spatially separated from the components obtained from the valve housing by the intermediate ring. The magnetic circuit thus manufactured is particularly well suited for fuel injection valves for fuel injection systems of internal combustion working with an externally ignited compressed mixture.
IPC 1-7
IPC 8 full level
F02M 51/06 (2006.01); F02M 61/16 (2006.01); F16K 31/06 (2006.01)
CPC (source: EP KR US)
F02M 51/06 (2013.01 - KR); F02M 51/0614 (2013.01 - EP US); F02M 51/0671 (2013.01 - EP US); F02M 61/168 (2013.01 - EP US); H01F 41/0206 (2013.01 - EP US); F02M 2200/8061 (2013.01 - EP US); H01F 2007/085 (2013.01 - EP US); Y10T 29/4902 (2015.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
US 5687468 A 19971118; DE 4432525 A1 19960314; DE 59503923 D1 19981119; EP 0733162 A1 19960925; EP 0733162 B1 19981014; JP 3504273 B2 20040308; JP H09505380 A 19970527; KR 100351395 B1 20021228; KR 960706022 A 19961108; WO 9608647 A1 19960321
DOCDB simple family (application)
US 64624496 A 19960911; DE 4432525 A 19940913; DE 59503923 T 19950413; DE 9500522 W 19950413; EP 95916562 A 19950413; JP 50978796 A 19950413; KR 19960702596 A 19960513