Robert Boschgmbh

Werner Wagner

Claudia Esther Frank, Legal Representative

Karl Hofmann

Max Straubel

Ewald Eblen

Wolfgang Ripper

Manfred Mack

Paul Fussner

Bernd Dittus

Christian Braeuer

Klaus Wolf

Edgar Schneider

Guenther Weissenberger

Udo Lux

Simone Christel Frank, Legal Representative

Heinz Mahr

Verena Andrea Frank, Legal Representative

Gunter Kapolke

A fuel injection system for internal combustion engines includes a high-pressure accumulator acted on with highly pressurized fuel by a high-pressure delivery unit and in turn supplies fuel to fuel injectors. The fuel injection system has a pressure control valve, which is disposed between a high-pressure side and a low-pressure side and actuating a valve element. The pressure control valve is actuated by means of an electrical actuator. An end surface of the pressure control valve delimits the low-pressure region in the high-pressure accumulator and is sealed by means of a seal disposed on the low-pressure side.

High-pressure accumulator for fuel injection systems with integrated pressure control valve

A fuel injection system for internal combustion engines including a high-pressure reservoir which is acted upon by fuel at high pressure via a high-pressure feed unit and supplies fuel injectors with fuel. The high-pressure feed unit is assigned a pressure regulating valve which is disposed between a high-pressure side and a low-pressure side and includes a valve element which is triggerable via an electrical final control element. The pressure regulating valve includes a housing component which includes a deformable region by way of which, upon mounting of the pressure regulating valve on a receiving body, a gap L between faces of an electrically triggerable final control element assembly is adjustable.

Adjustable pressure regulating valve for fuel injection systems

A fuel injection valve for internal combustion engines, having a valve member that is axially displaceable in a valve body and that with a sealing face cooperates, to control an injection opening, with a valve seat face on the valve body. An end of the valve member remote from the combustion chamber is urged in the closing direction by a valve spring disposed in a spring chamber. The valve member has a pressure shoulder acting in the opening direction, which protrudes into a pressure chamber that is filled with high fuel pressure. Via a throttle gap, the spring chamber communicates with the pressure chamber and is sealed off from a fuel return system, so that during the opening stroke motion of the valve member the spring chamber acts as a hydraulic damper.

Fuel injection valve for internal combustion engines

A pilot control valve of a fuel injection valve, having a first housing part which forms a well with walls parallel to an axis (z-z). A second housing part with a plug-in portion which is introduced in form-locking fashion into the well up to a set-point position. The first and second housing parts jointly define a chamber in which a valve closing member is displaceable along the axis in a chamber between a closed position, in which the valve closing member rests on a pilot control valve seat, and an open position, and the stroke of the valve closing member between the closed and the open positions is defined by the set-point position. The plug-in portion is fixed in the set-point position on the walls of the well that are parallel to the axis (z-z). It is thus possible for the set-point position, which is equivalent to a desired switching performance of the pilot control valve, to be adjusted accurately before a fixation.

Fuel injection valve, pilot control valve therefor, and method for its

Fuel injection nozzle for internal combustion engines

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Gerlingen, Germany

Werner Wagner