Shock absorbers group for use on crankshaft of heat engine of car, has elastomer interposed between hub and crowns, and throat axially turned on side of one of crowns and on side of other crown

摘要

The group has an elastomer (6) interposed between a hub (12) and crowns (34) according to specific form or different hardness of a heat engine. Sides of the crowns comprise a circular throat (30). The throat is axially turned on the side of one of the crowns and turned on a side of the other crown. The circular throat of the crowns comprises a depth part that is extended in width direction of the crowns. An external edge (22) of the crowns comprises circular notches (20) to receive a drive belt, where the notches are axially extended into the external edge of the crowns. An independent claim is also included for a method for checking alternative of shock absorber from a shock absorbers group for a crankshaft.