| 摘要 |
<p>A crankshaft with a special angle between cranks includes mainly two cranks or three cranks, in which the angle between the cranks is less than 180 degree. Pistons don't go to the end place in corresponding cylinders respectively at the same time. The largest centralized stress on the crankshaft is reduced, the power of the crankshaft driving the pistons to compress air is decreased, at last the power of the compressor is decreased and energy is saved.</p> |
