TENSIONER FOR MECHANICAL POWER TRANSMISSION DEVICE, DEVICE COMPRISING SUCH TENSIONER AND THERMAL MOTOR FOR MOTOR VEHICLE COMPRISING SUCH A DEVICE

摘要

The present invention relates mainly to a belt tensioner for a mechanical power transmission device, to a mechanical power transmission device comprising such a tensioner as well as to a thermal engine for a motor vehicle comprising such a mechanical device. The invention relates primarily to a belt tensioner comprising means (17) for bearing on the belt (3) and elastic return means (33) ensuring the prestressed application of the belt tensioners. support means (17) on the belt, characterized in that the support means (17) on the belt (3) comprise a coating of vibration-absorbing material. BR/ The present invention applies in particular to the mechanical industry. BR/ The present invention applies mainly to the automotive industry. / P