Robert Boschgmbh

Werner Teschner

Johannes Locher

Albrecht Geissinger

Horst Boeder

Juergen Oberle

Jochen Neumeister

Karl-Heinz Heussner

Friedrich Boecking

Gerhard Stumpp

Holger Rapp

Peter Boehland

Patrick Mattes

Uwe Gordon

Achim Brenk

Manfred Mack

Walter Egler

Thomas Pauer

Wolfgang Klenk

Markus Rueckle

Bernhard Kaczynski

Sebastian Kanne

Wilhelm Christ

Hans-Peter Bauer

Wilhelm Eyberg

Claus Maier

Andreas Koeninger

Hansjoerg Egeler

Giovanni Ferraro

Markus Ohnmacht

Jurgen Biester

Walter Kulovits

Juergen Gottschling

Dietmar Zeh

Friedrich Muhleder

Ingolf Kahleyss

Jorg-Chr Nissen

Karsten Frank

A method for operating a hybrid drive of a motor vehicle in particular. An internal combustion engine is connected to a generator via a force-conducting connection. In a learning mode, the generator is operated as a motor and drives the internal combustion engine. In this learning mode, a so-called zero quantity calibration is performed.

Method for operating a hybrid drive

A fuel injection valve for internal combustion engines, having a valve body with a bore defined on its end toward the combustion chamber by a conical valve seat, with a valve needle disposed longitudinally displaceably in the bore and a sealing face with two sealing portions on its end toward the combustion chamber with the second conical face being disposed on the combustion chamber side of the first conical face. An annular groove extending between the conical faces has an end facing away from the combustion chamber which acts as a sealing edge upon contact of the valve sealing face with the valve seat. Recesses embodied in the valve seat and/or on the valve sealing face hydraulically connect the annular groove with a portion of the second conical face located on the combustion chamber side of the annular groove.

Fuel injection valve for internal combustion engines

A sheathed-element glow plug for self-igniting internal combustion engines has an electrical heating element which projects into a combustion chamber of the internal combustion engine, and a current feed-through for providing a heating current for the heating element through an opening in the combustion chamber. A switch is positioned in the region of the current feed-through, and the heating current may be controlled by the opening and closing of the switch.

Sheathed element glow plug

A fuel injection system, having a fuel injection valve and a control valve, which control valve has a control valve member that is longitudinally displaceable in a control valve bore. A control valve sealing face is embodied on the control valve member; it cooperates with a control valve seat and thus controls the communication between a first pressure space and a second pressure space; the first pressure space communicates with a high-pressure collection chamber. In a valve body, a bore is embodied in which a pistonlike valve needle, with its end toward the combustion chamber, controls the opening of at least one injection opening by executing a longitudinal motion in response to the pressure in a pressure chamber; the pressure chamber communicates with the second pressure space via an inlet conduit. The first pressure space communicates via a throttle with a damping chamber, embodied as a blind bore and otherwise closed off, as a result of which pressure fluctuations that occur upon closure of the control valve are rapidly damped.

Fuel injection system for internal combustion engines

A fuel injection valve for internal combustion engines, having a holder body, which can be braced with a valve body that protrudes into the engine combustion chamber. A fuel inflow conduit extending from one end is provided that is formed by a longitudinal bore and a transverse bore that intersects the longitudinal bore. The injection port of the transverse bore forms a lateral pressure connection on a radial circumferential wall of the holder body for a fuel delivery line. In the region of a radial circumferential wall face opposite the lateral pressure connection, the holder body has a radially inward-pointing flat face.

Internal combustion engine fuel injection valve

Pencil type glow plug for diesel engines

Glow plug having a multi-part sheath of adjustable length

A ceramic electric resistor is proposed which can be made by means of ceramizing at least one organo-silicon polymer and at least one filler. The filler comprises at least one high-melting electrically conductive component, with the filler portion amounting to 20 to 50 vol. % relative to the solvent-free polymer-filler mixture. The specific electrical resistance can be set by varying the filler portion. The ceramic electric resistor is particularly suited as heating conductor for pencil-type glow plugs.

Ceramic electric resistor

Process and device for monitoring a fuel delivery system

Glow plug with constant-structure cobalt-iron PTC resistor

Growing community of inventors

Stuttgart, Germany

Werner Teschner