INTERNAL COMBUSTION ENGINE VALVE TIMING GEAR Russian patent published in 2001 - IPC

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: proposed invention can be used in designing of valve timing gears of internal combustion engines with direct drive of valves. Valve timing gear has at least one valve 2 with fasteners 3 of spring device 4, camshaft 5 and tappet 6 in form of cup providing uninterrupted kinematic coupling between end face of valve stem and cam 8 of camshaft. All these devices are mounted on cylinder head 1. additional damping element 10 with high loss factor is installed between end face of valve stem and bottom 9 of tappet. Damping element 10 is made of pressed metal porous gauze material. EFFECT: reduced noise of valve timing gear, improved operations, increased service life. 3 cl, 4 dwg