Kolbenschmidt Pierburg Innovations Gmbh

Daniel Hosse

Rudolf Flierl

Frederic Lauer

Prof-Dr Rudolf Flierl

A mechanically controllable valve drive for a reciprocating piston engine configured to adjust a gas exchange valve includes the gas exchange valve, a cam assembly comprising a camshaft and at least one cam for the gas exchange valve, a valve, a valve lift adjustment assembly, a drag lift assembly, and a device. The valve lift adjustment assembly comprises a valve lift adjustment device, and an intermediate lever assembly comprising at least one intermediate lever comprising a working curve comprising curve portions. The valve lift adjustment assembly is configured to shift the valve between a zero lift and a maximum lift. The drag lever assembly is operatively connected to the working curve. The device is configured to provide a valve-lift standstill range so that, in a maximum lift position, the valve is opened for a turning angle &#x3c9; of the camshaft with a flattened valve lift height.

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Neunkirchen, Germany

Daniel Hosse