| 摘要 |
<p>A method and system are taught for a tensioner (14) for an endless power transmission belt (12) in an engine. The method and system comprise an AGS pulley (16) and crankshaft pulley (18) coupled to the belt (12), one of the AGS pulley or the crankshaft pulley operating as a driving pulley that drives the belt so that a tight span (24, 122) and slack span (22, 124) are created in the belt (12) on opposite sides of the driving pulley (16; 18). The method and system also comprise accessory pulleys (20) coupled to the belt (12). The tensioner (14) comprises first and second arms (32, 34), each arm rotatably coupled to a pulley (33, 35), the pulleys being positioned such that a first one of the pulleys is coupled to the tight span and a second one of the pulleys is coupled to the slack span.</p> |
