Patent ID: 11913549
Assignee: DAYCO EUROPE S.R.L.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A tensioner for a belt transmission of a motor vehicle engine, comprising:
a fixed part comprising a base configured to be fixedly secured with respect to the engine and 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 on the arm a thrust such as to rotate said arm towards the belt;
at least one rolling bearing interposed between the arm and the pin; and damping means for damping the oscillations of the arm about the pin,
wherein said damping means comprise a first damping device and a second damping device exerting opposite actions on the arm.