Title:
内燃機関のための燃料噴射弁
Document Type and Number:
Japanese Patent JP2004518890
Kind Code:
A
Abstract:
A fuel injection valve for internal combustion engines has a valve body in which a pistonlike valve member is longitudinally displaceably disposed in a bore. The valve member is surrounded, over at least part of its length, by a pressure chamber that can be filled with fuel. On its end toward the combustion chamber, a valve seat is embodied in the bore, on which seat the valve member comes to rest with a valve sealing face in a closing position, so that the pressure chamber is disconnected from at least one injection opening located downstream of the valve sealing face. First and second parallel annular grooves are formed in the end region of the valve member disposed axially toward the valve seat and the valve sealing face is disposed between these two annular grooves.
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Inventors:
Christoph Buehler
Application Number:
JP2002575467A
Publication Date:
June 24, 2004
Filing Date:
March 26, 2002
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
F02M61/04; F02M61/18; F02M63/00; (IPC1-7): F02M61/18
Attorney, Agent or Firm:
Toshio Yano
Einzel Felix-Reinhard
Reinhard Einsel
Einzel Felix-Reinhard
Reinhard Einsel