Robert Boschgmbh

Gerhard Filp

Udo Diehl

Stefan Reimer

Karsten Mischker

Volker Beuche

Bernd Rosenau

Christian Grosse

Hermann Gaessler

Juergen Schiemann

Rainer Walter

Andreas Baumann

Simon Kieser

Juergen Ulm

Georg Mallebrein

Uwe Hammer

Christoph Woll

Hans Schlembach

Detlef Heinrich

Sevan Tatiyosyan

Thomas Mocken

Ulf Pischke

Hubert Schweiggart

Dimitrios Stavrianos

Gerald Holzapfel

Frank Traenkle

Sven Goebel

Bernd Jochen Kretschmer

Alexander Bayerl

Hakan Oezaslan

Juergen Meyer

Tilo Allmendinger

Uwe Gross

Klaus Lebert

Ulrich Wolters

A functional unit for carrying out logical test cases on a test system interconnected to a unit that is to be tested, the functional unit being suitable for being interconnected between the logical test cases and the test system in such a way that the logical test cases are decoupled from the test system, and, in this context, for supporting an execution of the logical test cases on the test system as mediator.

Functional unit for carrying out logical test cases on a test system interconnected to a unit to be tested and corresponding method

Disclosed is a simple, easy-to-produce, and reliable connection between a shaft of a gas exchange valve and an actuator. This connection is detachable and, as a result, can be connected and disconnected multiple times. It is also possible to dispose the coupling piece on the shaft of the gas exchange valve and provide circumferential grooves on the control element of the actuator.

Detachable connection for coupling a gas exchange valve of an internal combustion engine to an actuator

A connection between a shaft end of a gas exchange valve of an internal combustion engine and a final control element of a valve actuator, with at least two shell-shaped wedge-shaped pieces, surrounding the shaft end and braced on the final control element, whose radially outer circumferential surface extends conically and which are surrounded by at least one conical clamping sleeve whose radially inner circumferential surface extends complimentary to the cone angle of the wedge-shaped pieces, wherein on the radially inner circumferential surface of the wedge-shaped pieces and on the radially outer circumferential surface of the shaft end of the gas exchange valve, protrusions and recesses that mesh with one another are provided. To enable rotary motions of the shaft end relative to the wedge-shaped pieces, the latter adjoin one another without gaps in the circumferential direction, forming an encompassing wedge-shaped sleeve, whose inside diameter is slightly larger than the outside diameter of the shaft end of the gas exchange valve, and that the protrusions and recesses mesh with one another with slight play.

Connection between a shaft end of a gas exchange valve of an internal combustion engine and a final control element of a valve actuator

Growing community of inventors

Freiberg, Germany

Gerhard Filp