挺杆是配气机构的主要组成部分，是利用机油压力将凸轮轴上偏心轮上的力传递到气门的机构。
push rod 挺杆 Pressure Container 耐压容器 pressure cap 压力水箱盖 park brake switch 手制动开关 pinion seal 主动齿轮喻烩 Observing plan...
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气门挺杆 [车辆] valve tappet ; valve lifter ; valve push rod ; valve follower
挺杆起重机 jib crane ; arm crane
液压挺杆 Hydraulic tappet
挺杆导管 tappet guide ; lifter guide
气门挺杆发响 Tappet noise
滚柱挺杆 roller tappet
排气阀挺杆 exhaust valve lifter ; exhaust valve tappet ; exhaust tappet
挺杆滚轮 tappet roller ; lifterroller
阀挺杆 valve lifter
不幸的是尽管中国制造的平头挺杆物美价廉，但是其冶金技术遭到质疑，加工、热处理、表面硬化质量也遭质疑。
Unfortunately, though flat tappets from China are cheap, their metallurgy is suspect-and the same goes for the quality of their machining, heat treatment and surface-hardening.
使用滚柱挺杆或滑动挺杆来传动旋转凸轮轴做上下快速提升动作（开启和关闭发动机的进气阀和排气阀）的现代型汽车发动机似乎不会出现上述自动熄火的情况。
Modern car engines that use rolling or sliding tappets for transmitting the rapid up-down lifting motion of the spinning camshafts—to open and close the engine’s inlet and exhaust valves—seem immune.
气门挺杆为一圆筒体，坐落在凸轮上。
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