Robert Boschgmbh

Hubert Greif

Nestor Rodriguez-Amaya

Stephan Jonas

Traugott Degler

Werner Fischer

Kurt Reutlinger

Viktor Kahr

Uwe Schmidt

Christoph Hollmann

Uwe Gordon

Wolfgang Braun

Achim Brenk

Andreas Dutt

Manfred Mack

Walter Egler

Godehard Nentwig

Irene Jennrich

Wolfgang Klenk

Dieter Junger

Walter Fuchs

Heinz Nothdurft

Michael Mennicken

Wolfgang Geiger

Peter Sprafke

Markus Heidrich

Wolfgang Endres

Kristian Leo

Roland Gronenberg

Markus Muzic

Matthias Beck

Birte Luebbert

Reinhard Meyer

Joachim Kurz

Ramon Junker

Timo Haegele

Berhard Bonse

Karl-Friedrich Ruessler

Katja Matz

Thilo Rzymann

Falk-Alexander Petry

Stefan Plueschke

Roberto Carlos Retana Hernández

The invention relates to a magnet assembly for a magnet valve. The assembly has an inner pole and an outer pole as well as a coil. The coil is arranged between the inner pole and the outer pole and the coil wound directly onto the inner pole. According to the invention, the magnet assembly is used for actuating a closing element in a magnet valve.

Magnet assembly for a magnet valve

Disclosed is a valve comprising a valve member () that is guided so as to be movable in the direction of the longitudinal axis () thereof, extends into a valve pressure chamber (), and is provided with a sealing surface () on a face which runs perpendicular to the longitudinal axis () thereof inside the valve pressure chamber (). Said sealing surface () of the valve member () cooperates with a valve seat () that runs perpendicular to the longitudinal axis () thereof so as to at least largely close an opening () which is surrounded by the valve seat () relative to the valve pressure chamber (). A connection () to a low-pressure area lies immediately next to said opening (). The inventive valve member () is also provided with a peg () which extends into the connection () and by means of which liquid that flows out of the valve pressure chamber () when the sealing surface () of the valve member () is lifted from the valve seat () is directed in such a way that said liquid applies at least nearly no resulting force onto the valve member () in the direction of the longitudinal axis () thereof.

Valve for controlling a connection in a high-pressure fuel injection apparatus for an internal combustion engine

A casting compound based on a resin which cures by a chemical reaction. The casting compound is suitable for insulation of electric components and contains an epoxy resin component, a silicone-containing component, a filler, and a thermal initiator. This casting compound is processible as a single-component system.

Silicone-modified single-component casting compound

The invention relates to a control module for fluid control in injection systems, having a valve body () in which valve needles () of control valves () are received. With these control valves (), the pressure buildup or pressure relief of control chambers () or nozzle chambers of injectors can be varied. The control valves () in the valve body () are electromagnetically actuatable, and magnet coils are received in recesses () of insert elements () or in recesses () in the valve body itself.

Electromagnetic valve-actuated control module for controlling fluid in injection systems

A fuel injection system having one high-pressure fuel pump and one fuel injection valve communicating therewith for each engine cylinder. A piston of the fuel pump defines a work chamber which communicates with a pressure chamber of the fuel injection valve, which valve has an injection valve member by which injection openings are controlled, and which valve is movable in an opening direction counter to a closing force by the pressure prevailing in the pressure chamber. A first control valve controls, a connection of the pump work chamber to a relief chamber and a second control valve controls, a connection of a control pressure chamber, communicating with the pump work chamber and defined by a control piston, to a relief chamber. The control piston, controls a flow cross section of the connection of the control pressure chamber to the relief chamber as a function of the stroke of the control piston in such a way that when the injection valve member is in a closing direction, a larger flow cross section is uncovered than when the injection valve member is disposed in an open position.

Fuel injection system for an internal combustion engine

The invention relates to a 3/2-way valve for controlling the injection of fuel in a common rail injection system of an internal combustion engine, having a first switching position, in which an injection nozzle is in communication with a fuel return, and having a second switching position, in which the injection nozzle is in communication with a high-pressure fuel reservoir. To improve the function and quality of the injection, the 3/2-way valve includes a force-balanced control piston, and the control edge of the control piston is pressure-equalized by means of a blind bore.

Seat/slide valve with pressure-equalizing pin

The valve having a valve member guided displaceably in the direction of its longitudinal axis protrudes into a valve pressure chamber and has a sealing face extending transversely to axis, has a sealing face, which it cooperates with a valve seat, extending transversely to axis, for at least extensively closing off an opening, surrounded by the valve seat, from the valve pressure chamber. The sealing face is surrounded by an annular face, which when the valve member rests on the valve seat is disposed at a slight spacing from the valve seat. The valve member has a plurality of apertures, distributed over its circumference, through which the opening communicates with the valve pressure chamber when the valve member is resting on the valve seat.

Valve for controlling a communication in a high-pressure fluid system, in particular in a fuel injection system for an internal combustion engine

An electromagnetic injector for controlling a fuel quantity to be fed into an internal combustion engine includes a valve body displaceable by an electromagnetic coil system, the valve body acting together with a magnet armature of the electromagnetic coil system. The electromagnetic coil system includes at least two concentrically positioned coils integrated into the magnetic circuit so that in each case a first pole body is positioned between two adjacent coils, and the inner and outer coil are respectively adjacent to a second pole body, the first and second pole bodies are components of the magnetic circuit of the electromagnetic coil system, and in each case adjacent coils may have a common field current flowing through them in opposite directional sense to each other.

Electromagnetic injection valve for controlling a fuel amount to be injected into an internal combustion engine

A fuel injection pump having a cam drive and an injection adjuster piston, acting on the cam drive and serving the purpose of an injection onset adjustment. The injection adjuster piston on a face end encloses at least one pressure chamber that via a control valve is either made to communicate with a pressure source or a relief line or can be closed entirely. The control valve is actuated by an a proportional electromagnet. As a result, only a little adjusting medium is required, to obtain a high efficiency of the injection onset adjustment, and advantageously the injection adjuster piston is stressed only axially, and frictional forces on the circumference of the injection adjuster piston are thus avoided.

Fuel injection pump

A fuel injection pump of the distributor type which has a reciprocatingly driven pump piston that is load-bearing in a rotating distributor shaft which pumps fuel out of a pump work chamber to various fuel injection valves via a distributor opening. To control the duration of high-pressure injection, an electrically actuated valve is provided with a valve member in a valve chamber that communicates with the pump work chamber and from a second valve chamber, communicates with a low-pressure region. To terminate the high-pressure injection, the valve member makes a communication between the two valve chambers, whereupon the outflow of the fuel stream is controlled by disposing a diameter constriction in the connecting line, thus reducing any tendency to cavitation.

Distributor-type fuel injection pump

Fuel injection pump for an internal combustion engine

A method and device for switching an inductor are described. A first terminal of the inductor may be connected to ground via a first switching device. A second terminal of the inductor is always connected to a voltage power supply. A second inductor may be connected to ground via a second switching device. The energy released in the second inductor when the current flow is interrupted is used to switch the first inductor.

Method and device for switching an inductor

A process and a device for controlling a movement of an armature of an electromagnetic switching element having an exciter coil. A first setpoint for the current can be defined after a first time. A second setpoint for the current can be defined after a second time. The second setpoint is smaller than the first setpoint. The second time also occurs before a third time at which the armature has reached its end position.

Process for controlling a movement of an armature of an electromagnetic

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Markgroeningen, Germany

Hubert Greif