| 摘要 |
<p>A drive apparatus for engine auxiliary equipment comprises a drive pulley 100 mounted on the crank shaft of an engine. The rotation of the axle 110 of the drive pulley by the crank shaft is transmitted to the grooved body of the drive pulley by a planetary cone-type reduction gear 300. An output ring 350 of the reduction gear can be moved along the surface of the planetary cones 310 of the reduction gear by an hydraulic ram 600 to change the reduction ratio. A pump 400 driven by the rotation of the drive pulley pumps transmission oil sealed within the housing of the pulley to drive the hydraulic ram. The oil pressure applied to the ram is determined by the opening and closing of a solenoid valve 500, which is controlled by a controller in accordance with the operating conditions of the engine and the auxiliary equipment driven by the drive pulley. The reduction gear, the pump, the hydraulic ram, and the solenoid valve are housed within the drive pulley which is the same size as a conventional drive pulley.</p> |
