Decoupling pulley and internal combustion engine equipped with such a pulley

摘要

The pulley has a hub (11) and a rim (12) with exterior provided to exterior periphery of a V-shaped belt (13) that drives a transmission chain. The arrangement of the rim and the hub delimits a cavity (14) that is rendered airtight by dynamic joints (15a, 15b) and is completely filled with an incompressible fluid. A blade (16) of parallelepiped section is provided on each respective side of the hub and the rim. Independent claims are also included for the following: (a) a method for assembling a pulley (b) an internal combustion engine.