FIELD: engines and pumps.
SUBSTANCE: invention can be used in internal combustion engines. Valve train comprises camshaft (1) with cams and valve drive leverage (9). Bosses (7) are made at said camshaft (1) to accommodated dogs rigidly engaged therewith. At camshaft (1) revolution, every dog runs on guide plate (8) rigidly engaged with valve drive lever (3). Push end of lever (3) acts on valve stem end to open valve (9). At further rotation of camshaft (1), valve (9) is closed by camshaft cam acting on valve drive lever (3) lower surface. Valve (9) stem is provided with clip (11) with spring (12) resting on push end of the lever (3) with threaded hole accommodating bolt (10) with lock nut to adjust heat clearance between said bolt and valve end.
EFFECT: ruled out damage of valve train parts at breakage of camshaft drive belt.
4 dwg
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