| 摘要 |
<p>In an aspect, a tensioner(100) for an endless drive member, comprising a shaft (14) and base (15) that are mountable to be stationary relative to an engine, a tensioner arm (118) that is pivotable relative to the shaft about a tensioner arm axis, a pulley on the tensioner arm (118) rotatable about a pulley axis that is offset from the tensioner arm axis, and that is engageable with an endless drive member, a bushing (116) that is positioned radially between the pulley (120) and the tensioner arm (118) to support the pulley radially during relative rotation between the pulley and the tensioner arm, a tensioner spring (22) that is positioned to urge the tensioner arm towards a free arm position, a damping element (124) that engages the tensioner arm and that is engaged by a plurality of axially spaced segments (127a,127b) of the tensioner spring.</p> |
