| 摘要 |
<p>A blade tensioner system (17) for a chain that imparts tension to a chain that drivingly connects to a driven shaft to a drive shaft in an engine. The blade tensioner (17) comprises a blade shoe (18) and mating block (25). The blade shoe (18) has an arcuately curved chain sliding face (35), a proximal end portion (21), and a distal end portion (24) having a pair of tapered sides (42) joined by a bottom (40) and at an angle (43). The mating block (25) has a channel (45) with a pair of tapered sides (46) joined by a bottom (44) and at a second angle (47) for receiving the distal end portion (24). When load on the chain increases, the tapered sides (42) of the distal end portion (24) and the bottom contact and wedge with the tapered sides (46) of the channel (45) of the mating block (25), damping chain vibration.
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