Robert Boschgmbh

Diesel Technology Company

Werner Pape

Alfred Schmitt

Helmut Rembold

Helmut Laufer

Nestor Rodriguez-Amaya

Ewald Eblen

Detlev Potz

Jean Pigeroulet

Anton Karle

Wilhelm Christ

Nikolaus Simon

Pierre Lauvin

Hannes Pflug

Hans-Joachim Siebert

Dominique Buisson

Michael VanAllsburg

Henri Paganon

Markus Foetschl

Donna Mosher

Rodriguez-Amaya

Torsten Eggert

Mike Smith

Wilhelm W Christ

Bernhard Feistritzer

Armin Strauch

Cornelia Goldmann

Oliver Kovacic

Andreas Oyrer

Max Leonhard

The present invention relates to a metering module () for a liquid reducing agent, in particular a urea-water solution, for mixing the reducing agent with a gas, in particular air, for further introduction into an exhaust pipe () of an internal combustion engine (). The metering module () comprises a metering valve () having a conduit (), a compressed air duct () and a mixing chamber (). An outlet opening of the conduit () for the reducing agent is arranged in the mixing chamber () at a distance from the mid-axis of the metering module ().

Metering module for a liquid reducing agent

A method of utilizing the first valve bounce is used in a diesel engine having a solenoid valve controlled fuel injection system, wherein the solenoid-actuated valve is movable between a fully closed position for injection and a fully open position preventing injection. The method includes: (1) energizing the solenoid for valve movement to the fully closed position for commencing pilot injection; (2) de-energizing the solenoid immediately prior to the valve reaching the fully closed position for pilot injection in order to facilitate movement of the valve toward the fully open position immediately after the valve has reached the fully closed position, thereby preventing subsequent valve bounces; and (3) re-energizing the solenoid immediately prior to the valve reaching the fully open position, whereby to facilitate movement of the valve toward the fully closed position for main injection immediately after the valve reaches the fully open position, thus preventing subsequent valve bounces and decreasing time lag between pilot and main injection.

Method of utilization of valve bounce in a solenoid valve controlled

A fuel injection pump is proposed in which over a first portion of the supply stroke of the pump piston fuel for the main injection is pumped via a distributor line and a distributor groove into one at a time of a plurality of fuel injection lines. In a second, remaining portion of the pump piston supply stroke, on the same cam flank, fuel is then pre-stored in a reservoir, controlled by a first electrically controlled valve and a second electrically controlled valve and by one of a plurality of longitudinal control grooves, which fuel subsequently, before the beginning of the next main injection determined by the closure of the first electrically controlled valve, is pumped via a second distributor line into the next succeeding injection line.

Fuel injection pump

A fuel injection apparatus for internal combustion engines in which via an electrically controlled valve communication is established between a pump work chamber of a fuel injection pump and a low-pressure fuel chamber, and the switching times and movement times of the valve member of the valve are detected with the aid of a switching position transducer. The actual switching times are used for correction of the control times of the valve and thus for correction of the quantity of fuel attaining injection.

Fuel injection apparatus for internal combustion engines

A fuel injection pump is proposed having a rotating distributor, which is axially adjusted by an electromagnetic final control element counter to the force of a restoring spring. The force of the restoring spring is transmitted via an intermediate ring onto a collar of an armature serving as a coupling element, with the armature being provided with an axial recess into which a fitting part of the core of the electromagnet can plunge when magnetic force is applied.

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Stuttgart, Germany

Werner Pape