Robert Boschgmbh

Andreas Kerst

Burkhard Veldten

Gerhard Suenderhauf

Dietmar Ottenbacher

Roland Schulz

Klemens Brack

Ruben-Sebs Henning

Iris Sauerwein

Stefan Becher

The invention relates to a fuel injection valve for internal combustion engines having a valve body in which a blind hole is formed, with at least one injection opening proceeding from said blind hole. A longitudinally displaceable needle in the valve body has a valve sealing face formed at its end which faces towards the blind hole. The valve sealing face is formed from one or more conical faces, and the valve needle interacting, by means of a body seat, with said valve sealing face to control a fuel flow to the at least one injection opening. A needle tip adjoining the valve sealing face dips into the blind hole when the valve needle bears against the body seat, the needle tip being curved in a concave fashion directly adjacent to the valve sealing face.

Fuel injection valve for internal combustion engines

In a method and a device for controlling the injection of fuel into an internal combustion engine, a distinction is made at least between a first state and a second state. Immediately before the transition from the first state to the second state, the injection data is altered so that the emissions, in particular the production of noise, are gradually made to approximate the emissions in the second state.

Method and device for control of the fuel injection in an internal combustion engine

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Stuttgart, Germany

Andreas Kerst