BigPatents India

A belt-type continuously variable transmission includes a primary sheave, a secondary sheave, a resin block belt, and a transmission case. The resin block belt is wound around the primary sheave and the secondary sheave. The transmission case defines the section of a belt chamber accommodating the primary sheave, the secondary sheave, and the resin block belt. The transmission case includes an exhaust passage, intake passages, and a sound absorbing member. The sound absorbing member is attached to the inner wall of the exhaust passage in such a position as to collide with sound wave traveling through the exhaust passage. The sound absorbing member has a sound absorbing surface crossing an extending direction of the exhaust passage. No. of Pages : 58 No. of Claims : 13