The characteristics of cylinder cover vibration signals excited by valve impacts and combustion forces are discussed, and some criteria suitable for diesel engine vibration monitoring are proposed.
研究气阀敲击及气缸内燃气激励引起的气缸盖振动特征，并给出适合于柴油机振动状态监测的判据。
A turbine supercharger protector is provided, which comprises an oil cylinder body 11, an oil cylinder cover 12, a piston 2, a single filling valve 3 and a piston control device.
一种涡轮增压器保护装置，它包括油缸体11、油缸盖12、活塞2、单向进油阀3和活塞控制装置；
Two limit switches are installed on the frame to control the reversal valve to change the movement direction of the rubber knife, at the same time it protects the cover of the cylinder.
机架上装有上下两个限位开关，以控制换向阀改变切胶刀的运动方向，同时，也可保护活塞缸缸盖。
Two limit switches are installed on the frame to control the reversal valve to change the movement direction of the rubber knife, at the same time it protects the cover of the cylinder.
机架上装有上下两个限位开关，以控制换向阀改变切胶刀的运动方向，同时，也可保护活塞缸缸盖。
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