FIELD: mechanical engineering; internal combustion engines.
SUBSTANCE: intake and exhaust valves of valve-timing mechanism of internal combustion engine are installed outside combustion chamber for reciprocation in intake and exhaust ducts, being acted upon by drives and closing of intake and exhaust ports from outer side of combustion chamber. Each drive is essentially hydraulic system with hydraulic distributor and cylinder communicating through pipelines, and hydraulic drive made for fastening on head of cylinder block. Hydraulic drive has piston coupled with valve and installed in housing for reciprocation. Hydraulic brakes arranged in space of hydraulic drive housing are filled with liquid and are provided with holes to let out said liquid. Projections are made on opposite ends of hydraulic drive piston to fit them in slots of corresponding hydraulic brakes. Cylinder of hydraulic distributor is connected with electric motor. Piston of hydraulic drive and valve are connected by means of rocker and movable joint. Invention provides description of method of valve timing.
EFFECT: simplified drive and algorithm of valve control.
8 cl, 12 dwg
