ELECTROMAGNETIC VALVE FOR CONTROLLING AN INJECTION VALVE OF AN INTERNAL COMBUSTION ENGINE

Title:

ELECTROMAGNETIC VALVE FOR CONTROLLING AN INJECTION VALVE OF AN INTERNAL COMBUSTION ENGINE

Document Type and Number:

WIPO Patent Application WO2002050424

Kind Code:

A3

Abstract:

The invention relates to an electromagnetic valve for controlling an injection valve of an internal combustion engine. The electromagnetic valve comprises an electromagnet (29), a displaceable armature with an armature plate (28) and with an armature pin (27), and a control valve element (25). Said control valve element is displaced with the armature, interacts with a valve seat (24), and is provided for opening and closing a fuel discharge channel (17) of a control pressure space (14) of the injection valve (1). The armature plate (28) is displaceably mounted on the armature pin (27) in a manner that permits it slide, under the influence of its inert mass, in the closing direction of the control valve element (25) counter to the tension force of a return spring (35) acting upon the armature plate (28). When in a position of rest, the armature plate is pressed by the return spring (35) against a stop part (26) arranged on the armature pin (27). The stop part (26) is designed in such a manner that it peripherally encircles the armature pin by more than 180 DEG in a plane perpendicular to the direction of motion of the armature pin (27).

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Inventors:

RUTHARDT SIEGFRIED (DE)
RAPP HOLGER (DE)
SCHOENFELD DIRK (DE)

Application Number:

PCT/EP2001/013919

Publication Date:

September 12, 2002

Filing Date:

November 28, 2001

Export Citation:

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Assignee:

BOSCH GMBH ROBERT (DE)
RUTHARDT SIEGFRIED (DE)
RAPP HOLGER (DE)
SCHOENFELD DIRK (DE)

International Classes:

F02M51/06; F02M47/02; F02M59/46; F02M61/16; F02M63/00; (IPC1-7): F02M47/02; F02M59/46

Foreign References:

US6062531A	2000-05-16
US2382948A	1945-08-14
US5114077A	1992-05-19
US5299776A	1994-04-05
DE19927900A1	2000-12-21

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