Title:
内燃機関用の燃料噴射装置
Document Type and Number:
Japanese Patent JP4116552
Kind Code:
B2
Abstract:
A fuel injection system having a fuel injection valve in which an injection valve member is urged in an opening direction counter to a closing force by pressure in a pressure chamber which generated by a high-pressure fuel pump driven by a cam. A control valve is actuated by a piezoelectric actuator triggered by an electric control unit by which a communication of the pressure chamber with a relief chamber is controlled. When the control valve is closed, the pressure chamber is disconnected from the relief chamber. The control valve has a control valve member coupled with the actuator via a hydraulic coupler. The actuator, after a charging phase, communicates with an associated voltage meter, and the voltage between the electrical terminals of the actuator is monitored for detecting the function of the control valve.
Inventors:
Jurgen Boss
Johannes-Jerck Ruger
Claus Zimmerman
Johannes-Jerck Ruger
Claus Zimmerman
Application Number:
JP2003531005A
Publication Date:
July 09, 2008
Filing Date:
July 13, 2002
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
F02D41/22; F02D41/20; F02D45/00; F02M51/00; F02M51/06; F02M57/02; F02M59/36; F02M59/46; F02M63/00; F02M65/00; F16K31/02; H01L41/04
Domestic Patent References:
| JP10288119A | ||||
| JP63230940A |
Attorney, Agent or Firm:
Toshio Yano
Einzel Felix-Reinhard
Reinhard Einsel
Einzel Felix-Reinhard
Reinhard Einsel