Fast Gearbox synchronizer 12JS160T-1700010
Fast Gearbox synchronizer 12JS160T-1700010
Fast Gearbox synchronizer 12JS160T-1700010
The Function of the Transmission Gear Synchronizer The synchronizer is an important component in the transmission system. When the car was first invented, there was no such thing. It was developed later. Its main function is to make the gear shifting smoother. Some vehicles have a distinct clicking sound when shifting gears, or it is difficult to shift gears. In most cases, this is due to a problem with the synchronizer. Of course, other possibilities exist, but the synchronizer is a more likely cause.

The gear set of the synchronizer is generally divided into three parts. The first and second gears are shared, the third and fourth gears are shared, and finally, the fifth gear. Its working principle is that the gear of the transmission keeps synchronous with the engine speed to facilitate gear engagement. However, most cars do not have a synchronizer for reverse gear, and sometimes there may be a situation where the reverse gear cannot be engaged. For cars without synchronizers in the early days, one had to engage the gear based on intuition. Sometimes, when the gear could not be engaged, one needed to step on the accelerator several times. Driving a car back then was really tiring. This is the function of the synchronizer. With the development of automobiles to this day, the technology has become quite mature. New energy vehicles are also experiencing a new round of popularization. Just like how carburetors were replaced by electronic fuel injection in the early days.

The locking function of the locking ring 9 in conjunction with the coupling sleeve is caused by the aforementioned frictional torque M1. Since the effect of this frictional torque is related to the rotational inertia of both the locking ring 9 (and the connected coupling sleeve 8, spline hub 7, transmission output shaft, and the entire vehicle, etc.) and the gear 1 (and the connected clutch driven part and internal gears of the transmission), it is called an "inertial type" synchronizer.

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