Robert Boschgmbh

Robert Boach Gmbh

Helmut Laufer

Gerald Hofer

Anton Karle

Max Straubel

Ewald Eblen

Karl Konrath

Franz Eheim

Wolfgang Fehlmann

Alfred Schmitt

Pierre Lauvin

Johannes Locher

Hermann Grieshaber

Ulrich Flaig

Wilhelm Polach

Gerhard Engel

Josef Wahl

Manfred Birk

Hermann Kull

Joachim Tauscher

Fridolin Piwonka

Alf Loffler

Wilfried Bohringer

Max Greiner

Wolfgang Braun

Dieter Junger

Roland Gronenberg

Wolf Wessel

Helmut Rembold

Konrad Eckert

Werner Fischer

Reinhard Schwartz

Peter Zweigle

Francois Rossignol

Hermann Eisele

Detlev Potz

Joachim Berger

Manfred Schwarz

Jean Pigeroulet

Eberhard Hofmann

Franz J Eheim, Deceased

Wilhelm Christ

Wolfgang Geiger

Werner Zimmermann

Nikolaus Simon

Heinz Kuschmierz

Hans-Peter Bauer

Elmar Huber

Dietbert Schoenfelder

Werner Pape

Hannes Pflug

Hans-Joachim Siebert

Helmut Pfeifle

Dominique Buisson

Karl Zibold

Raymond Tissot

J&ouml;rg Wolke

Peter Nordhaus

Johannes Pflug

Alf Loeffler

Eberhard Fiedler

Rodriguez-Amaya

Max Staubel

Ilja Djordjevic

An arrangement for sealed leading of at least one conductor has a housing having a housing wall which surrounds a housing aperture, a closing part which closes the housing aperture, a seal arranged between the closing part and the housing wall which surrounds the housing aperture, at least one conductor track serving as at least one conductor which is pressure-tightly connected with a conductor track carrier formed by an elastic flexible carrier film, the conductor track carrier being routed between the housing and the closing part, the at least one conductor being insulated from outside and being in close contact with the seal in a closing position of the closing part, the closing part being held to the seal by a closing force, a part of the conductor track carrier having an elastic flexible extension which protrudes within the housing, an electrical component which is movably arranged within the housing, the extension being bent for contacting the at least one conductor track thereon on at an end of the extension directly to the electric component thereby fixing the end of the extension to the electric component which is movably arranged within the housing, so that the end of the extension follows each movement of the electric component.

Arrangement for the sealed lead-through of a conductor through the wall of a housing

A fuel injection pump has a pump plunger (13), which is driven by a drive shaft (15) via a cam gear (14) at least in an axial stroke movement and in so doing generates a fuel injection pressure in a pump work space (16), and a magnet valve (30) blocking or releasing the pump work space (16) relative to a relief duct (26). The start of delivery of the pump plunger is determined by the closing of the relief duct (26) and the end of delivery of the pump plunger (13) is determined by the release of the relief duct (26). To prevent the so-called jumping off of the plunger in the cam gear (14), the magnet valve (30) is controlled after the end of delivery in such a way that a residual pressure lying below the injection pressure is built up in the pump work space (16) until the top dead center point is reached (FIG. 1).

Fuel injection pump

A control device for varying the supply onset of a fuel injection pump, in which the supply rate at the lower full-load point is increased without overloading the pump at the rated capacity point. A control of this kind is effected by the use of a deflection piston as well as by use of a prestressed check valve. Regulation serving the same purpose can be achieved with the aid of an element pressure sensor and two magnet valves. The control device is intended for use in an internal combustion engine.

A fuel injection pump in which the injection onset is varied by means of an injection adjuster, which has a two part adjusting piston acted upon by a hydraulic control pressure, which piston is adjustable counter to a restoring spring and by means of a bolt, engages the cam drive of the fuel injection pump in order to adjust the injection onset. To reduce the highest pressure in the high-pressure chamber of the fuel injection pump and to form the course of injection pressure, the adjusting piston is embodied in two parts, with a first piston that is adjustable relative to the second piston counter to a compression spring and the second piston is connected with the bolt. This makes possible a deflection motion of the piston relative to the second piston and a reduction in the pump piston stroke speed.

In a system and method for controlling a solenoid-valve-controlled fuel-metering device, in particular for a diesel gasoline engine, the duration of delivery is determined based upon the speed value during the preceding metering-in operation.

System and method for controlling a solenoid-valve-controlled

A fuel injection apparatus for internal combustion engines comprising a pump work chamber defined in a bore of a housing by a pump piston. The pump work chamber is supplied with fuel and relieved via a fuel line containing a magnet control valve. Moreover, the pump work chamber communicates with an injection valve via a supply line. Controlling of the injection is done via the opening or closing of the magnet control valve during the pumping stroke of the pump piston; to that end, the magnet valve is triggered by a control unit. To enable performing an accurate injection, a needle stroke transducer is disposed on the nozzle needle of the injection valve; if a limit value is exceeded, its stroke motion is detected as a precise signal for the onset and end and hence the size of the injection quantity and is transmitted to the control unit, where this actual value is compared with a set-point value from a performance graph, and a correction of the magnet valve triggering is consequently done performed, if needed.

Fuel injection apparatus for internal combustion engines

A fuel injection pump for internal combustion engines comprises a suction space, a fuel duct, an electrically actuated valve controlling the fuel duct, a fuel supply tank, a distributor having a distributing opening, a plurality of pressure ducts connectable with injection locations of an internal combustion engine via injection lines, a pump plunger which defines a pump work space connectable with the suction space during a suction stroke and during a control portion of the delivery stroke of the pump plunger via the fuel duct, while fuel is delivered from the fuel supply tank to the suction space connectable during a respective delivery stroke of the pump plunger via the distributor opening with one of the plurality of pressure ducts. The valve has a closing phase which determines a high pressure fuel delivery into the injection lines, a fuel return, and a bypass line is provided to a fuel return and branches from the fuel duct between the suction space and the valve.

Fuel injection pump for internal combustion engines

The invention relates to a method and arrangement for preparing a fuel-metering signal M for a diesel engine starting with measured variables such as accelerator pedal position, rotational speed, lambda, exhaust gas temperature or torque. A fuel quantity request MW is pregiven in dependence upon the position of the accelerator pedal. This quantity request MW is supplied to a minimum selector together with a second signal. The output signal M of the minimum selector, in turn, determines the metered fuel. The second signal derives from a precontrol characteristic field 50 in dependence upon the speed. The output signal of the precontrol characteristic field MV is influenced by the controller output signal MR in specific operating conditions.

Method and arrangement for controlling the fuel metered in a diesel

It is possible in a simple manner, especially in distributor injection pumps, to attain quiet combustion in the idling range of a Diesel engine, without modifying the basic construction of the fuel injection pump by shifting the injection pumping to the last portion of the stroke of the cam driving the pump piston of the fuel injection pump for idling, by means of an injection onset adjusting device, in combination with a determination of injection duration via the closing phase of an electrically controlled valve that relieves the pump work chamber.

Method and apparatus for controlling a high-pressure fuel pumping time

The invention is directed to a method and arrangement for controlling a self-igniting internal combustion engine. The arrangement includes at least one measured-value sensor, electronic control unit for forming a quantity signal for metering fuel, and a control unit for driving individual actuators for each cylinder. The actuators determine the quantity of fuel injected by the pump elements into the cylinders. Under specific conditions, a corrective unit is activated which determines corrective values specific to the cylinders for making the cylinders equal. The open-loop control unit applies the metering signal to the actuators in dependence upon the quantity signal and the corrective values.

Method and arrangement for controlling a self-igniting internal

The invention is directed to a method and an arrangement for controlling the fuel injection in a high-pressure fuel pump. Magnetic valves determine the fuel quantity to be injected into the engine. The magnetic valve is controlled during the pumping phase of the pumping element in such a manner that first a preinjection and then a main injection is carried out. In specific operating conditions, the control apparatus determines the duration of the drive pulses for the magnetic valve at which a preinjection just takes place. With the duration of the drive pulses as a basis, the control apparatus forms compensating signals for the drive pulses which effect preinjection and stores the same.

Method and arrangement for controlling the injection of fuel in an

The invention relates to a method and arrangement for controlling the fuel metered to an engine and especially to a diesel engine. The engine includes a fuel pump drive by a shaft for which injection start and injection end is fixed by a corresponding control of the electromagnetically actuated valve. The drive pulses for pump-delivery start and pump-delivery end are generated in dependence upon the analog signal of an angle sensor.

Method and arrangement for controlling the metering of fuel in an

A fuel injection pump for internal combustion engines that has a pump interior and a final control element chamber, separated from it, the latter having an electric final control element for actuating a quantity adjusting device that determines a fuel injection quantity, parts of the final control element from which a control variable for the injection quantity is derived and which thereby serves as a material measure, are to be protected from the influence of fuel. By means of a jet pump through which a permanent propulsive flow flows and which is part of a flow conduit, the static pressure at the intake bore of the jet pump that communicates with the final control element chamber is lowered, and this negative pressure is utilized for evacuating the fuel entering the final control element chamber in the form of a leakage flow along the bearing of a control shaft. This arrangement is particularly suitable for high-pressure injection in Diesel engines, to attain highly accurate fuel metering that is stable over a long period of time.

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Stuttgart, Germany

Helmut Laufer