Device for controlling internal combustion engine valve timing includes a chain wheel driven by a timing chain synchronized to engine revolutions and a camshaft to operate inlet and outlet valves.

摘要

A first rotating part (5) with a porous sintered metal base part has a single-piece porous sintered metal chain wheel (3). A second rotating part (15) turns in relation to the first rotating part and in common with a camshaft (1). Several operating fluid chambers lie between both rotating parts. A feed/draw-off device for operating fluid to and from the operating fluid chambers causes relative rotation between both rotating parts.