DRIVE MEMBER TENSIONER Russian patent published in 2003 - IPC

FIELD: mechanical engineering; automotive industry. SUBSTANCE: invention is designed for tensioning camshaft drive chain. Proposed tensioner has spring-loaded plunger and adjusting steam arranged in cylindrical space of housing and hydraulic compensator secured by union nut in tensioner end face. Hydraulic compensator is made in form of housing filled with liquid in space of which spring-loaded piston is arranged. Piston is provided with through longitudinal channels and ring slot with sealing ring being simultaneously a check valve. Flexible diaphragm is installed between housing of tensioner and housing of hydraulic compensator. Invention provides maintaining of constant preset tension of drive member in process of vehicle operation. EFFECT: provision of noiseless operation of engine. 2 dwg