| 摘要 |
<p>1521697 Hydraulic control circuits CATERPILLAR TRACTOR CO 2 Oct 1975 [29 Nov 1974] 40445/75 Heading F1P In a lift truck, the mast tilt cylinders 14 are connected through a throttle 31 to an accumulator 29 so that pressure surges, caused when the truck passes over rough ground, are damped. The accumulator is of the free piston type.</p> |
