Robert Boschgmbh

Christian Grimminger

Hans-Christoph Magel

Holger Rapp

Helerson Kemmer

Martin Kropp

Manfred Mack

Marco Beier

Anh-Tuan Hoang

Helmut Clauss

Ralph Kober

Roman Etlender

Thomas Becker

Egbert Fuchs

Thomas Gann

Christian Szonn

Andreas Fath

Felix Landhaeusser

Henning Kreschel

Sascha Hoefler

Maurizio Scanu

The invention relates to a valve device () for a gaseous medium, in particular hydrogen, comprising a valve housing () and a solenoid armature () which is arranged in the valve housing and can move along the longitudinal axis () and which interacts with a first sealing seat () in order to open and close an outlet opening (). Furthermore, the valve housing () is equipped with a second solenoid armature () which can be moved along the longitudinal axis () and which is at least partly received in a recess () of the first solenoid armature (), and the second solenoid armature () interacts with a second sealing seat () in order to open and close an outlet opening () formed in the first solenoid armature (). The first solenoid armature () and the second solenoid armature () are additionally surrounded by a magnet device (), by means of which the first solenoid armature () and the second solenoid armature () can be moved along the longitudinal axis () using precisely one solenoid ().

Valve device for a gaseous medium, and tank device for storing a gaseous medium

In a method for operating a valve, e.g., a fuel injector of an internal combustion engine in a motor vehicle which is activated with the aid of an actuator, the actuator is activated using a control variable which has a predetermined control period. The control period is formed as a function of a setpoint value for a closing delay time of the valve which characterizes a time difference between an end of the control period and a closing point in time of the valve.

Method and control unit for operating a valve

A fuel injection apparatus for injecting fuel into the combustion chambers of an internal combustion engine. includes a high pressure accumulator, a pressure booster, and a metering valve. The pressure booster includes a working chamber and a control chamber that are separated from each other by an axially movable piston. A pressure change in the control chamber produces a pressure change in a compression chamber that acts on a nozzle chamber via a fuel inlet. The nozzle chamber encompasses a nozzle needle. A nozzle spring chamber that acts on the injection valve element can be filled on the high-pressure side via a line that leads from the compression chamber and contains an inlet throttle restriction. On the outlet side, the nozzle spring chamber is connected to a chamber of the pressure booster via a line that contains an outlet throttle restriction.

Device for damping the needle lift in fuel injectors

Growing community of inventors

Leonberg, Germany

Christian Grimminger