Mechanically controllable valve drive for a reciprocating piston engine

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United States of America Patent

PATENT NO 9279348
APP PUB NO 20140096730A1
SERIAL NO

14047022

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Abstract

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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 ω of the camshaft with a flattened valve lift height.

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Patent Owner(s)

Patent OwnerAddress
KOLBENSCHMIDT PIERBURG INNOVATIONS GMBH74172 NECKARSULM

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Flierl, Rudolf Hirschau, DE 15 88
Hosse, Daniel Neunkirchen, DE 1 2
Lauer, Frederic Oberriexingen, DE 3 4

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