花键套管 meaning in English

splined sleeve

In some makes of engine the helically splined coupling is not used and the angular displacement of the shafts is effected by centrifugally actuated devices of the swinging link or inclined plane type
在一些发动机的制造中，并不使用螺旋式花键套管，通过摇杆或斜面型的偏心操纵装置，曲轴相位角起到同样作用
At an early stage in the evolution of the high - speed diesel a variable timing device was introduced in the pump drive coupling , taking the form of a helically splined coupling by means of which the angular relation between driving and driven shafts could be varied by manual or automatic control
翻译：在高速柴油机发展的早期，可变的正时装置被引用到油泵驱动联轴节上，采用螺旋式花键套管的形状，驱动轴和从动轴之间的相对角度可以通过手动或自动控制进行改变。
From the above it will be realised that fundamental difference between petrol and diesel engines is that in the petrol engine the source of heat for igniting the charge , namely an electric spark , is generated outside the engine , and is taken , as it were , into the waiting charge at the required instant
翻译：在高速柴油机发展的早期，可变的正时装置被引用到油泵驱动联轴节上，采用螺旋式花键套管的形状，驱动轴和从动轴之间的相对角度可以通过手动或自动控制进行改变。