FIELD: engines and pumps.
SUBSTANCE: invention can be used in internal combustion engines. Valve drive (14) comprises head (1) of cylinder block, distribution shaft (2) installed with possibility of rotation in head (1) of cylinder block, cam mechanism, pusher (11) of valve, valve (14) and valve poppet (13). Distribution shaft (2) is made up of rod with rigidly installed on it by means of transient sleeves (3) cams. Each cam is assembly consisting of permanent magnet (4) with axial magnetization, and side plates (5), having on area adjoining to magnet (4) slots (6) to fix magnet (4). Side pads (5) are made as cam working surface. Working surfaces of straps (5) of cam, having from permanent magnet (4) of cam magnetised opposite poles arranged along axis of rotation, unlike poles are in constant magnetic articulated with working surfaces of straps (7) collecting roller. Roller assembly consists of permanent magnet (9), having axial magnetisation, and side plates (7), having on area adjoining to magnet slots (8) to fix magnet (9). Side pads (7) performs function of roller working surface, which having from permanent magnet (9) magnetized opposite poles arranged along axis (10) of roller rotation, unlike poles are in constant magnetic articulated with working surfaces of side plates (5) of cam. Roller of pusher is built in follower (11) of valve through axis (10) of roller rotation. Pusher (11) of valve contains valve mounting device (12).
EFFECT: technical result consists in reduction of load on parts of device.
3 cl, 3 dwg
