Title:
内燃機関のための燃料噴射弁
Document Type and Number:
Japanese Patent JP4116448
Kind Code:
B2
Abstract:
A fuel injection valve in which a pistonlike outer valve needle is disposed longitudinally displaceably in a bore and cooperates with a valve seat to control at least one injection opening. A control chamber regulatable by a valve is provided and pressure in the control chamber exerts a closing force at least indirectly on the outer valve needle in the direction of the valve seat. A pressure face embodied on the outer valve needle is acted upon by the pressure in a pressure chamber, which is embodied between the outer valve needle and the wall of the bore and extends as far as the valve seat, so that an opening force on the outer valve needle results that is oriented counter to the closing force. An inner valve needle is guided in the outer valve needle and controls at least one additional injection opening and is acted upon by the pressure in the control chamber at least indirectly in the direction of the valve seat.
Inventors:
Peter balant
Sebastian Canne
Godehard Nendwig
Sebastian Canne
Godehard Nendwig
Application Number:
JP2002587791A
Publication Date:
July 09, 2008
Filing Date:
March 22, 2002
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
F02M47/00; F02M45/00; F02M45/08; F02M47/02; F02M61/10; F02M63/00
Domestic Patent References:
| JP11022581A | ||||
| JP2002317727A | ||||
| JP9032687A | ||||
| JP2002054522A |
Foreign References:
| EP0967383A1 | ||||
| DE3824467A1 | ||||
| US5899389 |
Attorney, Agent or Firm:
Toshio Yano
Einzel Felix-Reinhard
Reinhard Einsel
Einzel Felix-Reinhard
Reinhard Einsel
Previous Patent: JPH04116447
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