Siemens Aktiengesellschaft

Continental Automotive Gmbh

Stefan Lehmann

Gerd Schmutzler

Wilhelm Frank

Reda Rizk

Martin Neumaier

Wendelin Kluegl

Guenter Lewentz

Hellmut Freudenberg

Dirk Baranowski

Stefan Kohn

Raimondo Giavi

Robert Kuchler

Wolfgang Wechler

Johannes Fitzner

Roland Feigl

Bernhard Fischer

Georg Bachmaier

Thomas Schmid

Dominik Bergmann

Wendelin Klügl

Matthias Wicke

Manuel Hannich

Karl Kirchweger

G&uuml;nter Lewentz

Wendelin Kl&uuml;gl

Christian Tump

Johann Görzen

Hinrich Kr&uuml;ger

Frank Herold

Jurgen Rink

J&uuml;rgen Rink

A lever device for a fuel injection valve includes a housing with a housing recess, at least one lever element arranged in the housing recess, a drive element arranged in the housing recess and coupled to the lever element(s) in order to act upon said at least one lever element in a direction of a force-action axis, and an output element arranged in the housing recess and coupled to the lever element(s) such that this output element is moveable in the force-action axis direction by the at least one lever element. Each lever element includes a coupling section designed or arranged such that the lever element is coupled to the housing, or to the output element, in a rotationally-fixed manner with respect to the force-action axis.

Lever device and a fuel injection valve

A lever device for a fuel injection valve includes a housing with a housing recess, at least one lever element arranged in the housing recess and having a coupling section coupled to a section of the housing, a drive element arranged in the housing recess and coupled to the at least one lever element to act upon the at least one lever element in the direction of a force-action axis, and an output element arranged in the housing recess and coupled to the at least one lever element such that the output element may be moved in the force-action axis direction by the at least one lever element. The coupling section of the lever element has at least one recess that defines at least two coupling section contact surfaces spaced apart from one another and resting against the housing section.

The positioning of the actuating drive in a fuel injector with a piezoactuator () that is screwed into the housing () of the fuel injector is performed by applying a voltage (U) to the piezoactuator () that corresponds to a given idle stroke (h), and the surface grinding of the housing () and base plate () of the piezoactuator () when voltage is applied. Between the housing () of the fuel injector and the housing () of the piezoactuator (), there is also provided a compensation collar () of a suitable thickness.

Procedure for positioning the actuating drive in a fuel injector and device for performing the procedure

In a method for reading and/or storing injector-specific data for controlling an injection system of an internal combustion engine, an injector is charged by a control unit according to a predeterminable voltage curve and, depending on the case, is discharged directly by the control unit or by a power element located on a data storage medium and the voltage is measured by the control unit and by the data storage medium. Dependent upon a predeterminable voltage curve, a predeterminable amount of data is stored or read on a memory unit of the data storage medium.

Method and data storage medium for reading and/or storing injector-specific data for controlling an injection system of an internal combustion engine

The positioning of the actuating drive in a fuel injector with a piezoactor () that is screwed into the housing () of the fuel injector is performed by applying a voltage (U) to the piezoactor () that corresponds to a given idle stroke (h), and the surface grinding of the housing () and base plate () of the piezoactor () when voltage is applied. Between the housing () of the fuel injector and the housing () of the piezoactor (), there is also provided a compensation collar () of a suitable thickness.

Method for producing a compensation collar for an injection valve

The positioning of the actuating drive in a fuel injector with a piezoactor ( ) that is screwed into the housing ( ) of the fuel injector is performed by applying a voltage (U) to the piezoactor ( ) that corresponds to a given idle stroke (h), and the surface grinding of the housing ( ) and base plate ( ) of the piezoactor ( ) when voltage is applied. Between the housing ( ) of the fuel injector and the housing ( ) of the piezoactor ( ), there is also provided a compensation collar ( ) of a suitable thickness.

Method for positioning the actuating drive in a fuel injector device for implementing said method

A device for transmitting a deflection of a piezoelectric actuator to a movable tappet includes a pressure chamber between the piezoelectric actuator and the tappet. The pressure chamber is substantially formed by two mutually parallel diaphragms having effective radii of different lengths. The diaphragm with the longer radius is associated with the piezoelectric actuator and the diaphragm with the shorter radius is associated with the tappet. Therefore, upon a deflection of the first diaphragm by the piezoelectric actuator, the second diaphragm is deflected by a greater distance toward the tappet. A controller with an actuator having a controllable length is also provided.

Controller with an actuator of controllable length and device for transmitting the deflection of an actuator

A mechanical force transmitter converts the deformation of a piezoelectric actuator into a linear movement of a final control element. The transmission is via configuration of two mutually inclined working surfaces and a movable mechanical element disposed between the inclined working surfaces.

Device for transmitting a deflection of an actuator

Growing community of inventors

Lappersdorf, Germany

Stefan Lehmann