公开(公告)号：US20220268342A1

公开(公告)日：2022-08-25

申请号：US17625505

申请日：2020-07-08

Applicant: DAYCO EUROPE S.R.L.

Inventor： Roberto RONCHETTO ,  Gianluca OSELLA

IPC: F16H7/12

Abstract: A tensioner for a belt transmission of a motor vehicle engine has a fixed part configured to be constrained to the engine and provided with a pin defining a rotation axis (A), an arm having a hub portion hinged on the pin and rotatable about the axis (A) and an opposite portion rotatably supporting a pulley configured to cooperate with a transmission belt, a main spring interposed between the fixed part and the arm to exert a thrust on the arm such as to rotate the arm towards the belt, a roller bearing supporting the arm on the pin, and a pair of damping devices exerting on the arm opposite actions so as to minimize the load on the bearing.