| 摘要 |
PURPOSE:To decrease the noises of a gear train, by prescribing the gear ratio of a driving gear to a driven gear. CONSTITUTION:The driving gear 1 is secured on a crankshaft. The lag in the rotation fluctuating cycle of the driving gear 1 and the top dead center of the piston of the air compressor are prevented from being overlapped with each other to eliminate the collision between the driving gear 1 and the driven gear 2 and decrease the noises of the gear train. The number Za of teeth of the driven gear 2, the number N of cylinders of an engine, the number C of strokes of the engine and the number Zb of teeth of the driving gear 1 are related to one another as Za=Zb.n.C/2N where n denotes a positive integer. |
