Robert Boschgmbh

Changyi Wang

Holger Rapp

Wolfgang Stoecklein

Marco Beier

Thomas Pauer

Markus Rueckle

Stefan Stein

Bernd Berghaenel

Helmut Clauss

Michael Jupe

Reinhold Melcher

Andreas Gaudl

Karl Stichleutner

Holger Stephan

Kristin Schoenau

The invention relates to a fuel injector for injecting fuel into the combustion chamber of an internal combustion engine, comprising a nozzle needle () which is able to perform stroke motions and by the stroke motion of which at least one injection opening can be exposed or closed, and further comprising a control valve () for controlling the stroke motion of the nozzle needle () in that, depending on the respective switch position of the control valve (), hydraulic pressure applied in closing direction to the nozzle needle () in a control chamber () is altered, and further comprising a sensor array () for detecting the needle closing time. According to the invention, the sensor array () is arranged in the low-pressure area of the fuel injector in a space () which is sealed with respect to the fuel-conducting area (). Sealing of the space () is effected by a membrane () made of a fuel-resistant, electrically conductive material, allowing the membrane () to also be utilized for implementing a ground connection.

Fuel injector

Growing community of inventors

Kornwestheim, Germany

Changyi Wang