Tensioner for a mechanical power transmission, a transmission including such a tensioner, and a motor vehicle engine including such a transmission
AssigneeHutchison
InventorsClaude Rointru, Denis Tricoche, Herve Varin
Life of this patent
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Abstract
A belt tensioner for a mechanical power transmission such as in a motor vehicle engine. The belt tensioner includes a wheel for bearing against the belt and a resilient return device for ensuring that the wheel bears against the belt with pre-stress. The wheel further includes a covering of vibration absorbing material. The invention is particularly applicable to mechanical engineering and specifically to the car industry.
Claims11
A belt tensioner for a belt comprising a rotatable member for bearing against the belt and a resilient return member for ensuring that the rotatable member bears against the belt with pre-stress, the rotatable member further including a covering of vibration-absorbing material, said vibration-absorbing covering acting to reduce transverse vibrations of said belt when said belt contacts said rotatable member.
A mechanical power transmission including at least one driving pulley and at least one driven pulley, a belt passing over the driving and driven pulleys, the transmission including a belt tensioner comprising a rotatable bearing member for bearing against the belt and a resilient return member for ensuring that the rotatable bearing member bears against the belt with pre-stress, the rotatable bearing member further including a covering of vibration-absorption material, said vibration-absorbing covering acting to reduce transverse vibrations of said belt when said belt contacts said bearing member.
An engine including a mechanical power transmission including at least one driving pulley and at least one driven pulley, a belt passing over the driving and driven pulleys, the transmission including a belt tensioner comprising rotatable bearing member for bearing against the belt and resilient return means for ensuring that the member bears against the belt with pre-stress, the bearing member further including a covering of vibration-absorbing material said vibration-absorbing covering acting to reduce transverse vibrations of said belt when said belt contacts said bearing member.
Dependencies are inferred from the claim text.