Article: German Inventors Develop Valve Train with Cam Switching

ALEXANDRIA, Va., Aug. 7 -- Harald Elendt of Altendorf, Germany, has developed a valve train for internal combustion engine.

According to the U.S. Patent & Trademark Office: "A valve train with cam switching used for intermittent control of a four-cycle internal combustion engine. The valve train comprises a splined shaft, one cam block per cylinder, and a housing-mounted actuator pin. On each end of the cam block is a cylindrical end piece and a mirror-symmetric displacing groove. A housing-mounting actuator pin inserts radially into each displacing groove. The cam block reciprocates axially through the cooperation of the actuator pins and the displacing grooves when the engine is ...

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