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现代的电磁接合式汽车起动机具有专用的电磁开关装在外壳上.电磁开关是用来使触点自动闭合,同时并通过拨杆机构使驱动齿轮与发动机的飞轮相啮合.起动机为传动机构上带有单向器,这样可以保证在起动发动机时电极不会超速运转.外壳上装置电磁开关将会增加起动机的轮廓尺寸和重量.装有滚子的单向器制造很难,同时成本
Modern electromagnetic junction type car starter has a special electromagnetic switch installed in the shell. The electromagnetic switch is used to make the contact automatically closed at the same time and through the lever mechanism so that the drive gear meshing with the engine flywheel. Starter for the transmission mechanism This ensures that the electrode will not overspeed when starting the engine and the solenoid on the housing will increase the profile size and weight of the starter.The unidirectional roller with rollers is difficult to manufacture and the cost