| 摘要 |
Engines may be provided with one or more balance shafts to provide a balancing effect to the engine during operation. Normally, the balance shafts are located where they can be driven by the engine's front end drive assembly. However, driving balance shafts or any other engine accessory off the front end drive assembly has implications in respect of both increased engine noise and extended engine length. An engine accessory drive in accordance with the present invention reduces engine noise and engine length while providing a balancing effect. An engine accessory drive includes a primary drive (7) drivable by the crankshaft (9) of the engine and a rotary member (5) such as a drive pulley mounted on a drive shaft (27) which is drivable by the primary drive (8).
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