Introduction to Automotive Synchronizers
Inside the structure of a manual transmission, there is a very important device, which is the "synchronizer".
Release time:
2024-01-23
Inside the structure of a manual transmission, there is a very important device called a "synchronizer." The function of the synchronizer is quite obvious: it is a mechanical device that resolves the inconsistency between the engine speed and the transmission speed during gear shifting, as the output gear's rotation speed must be faster than the gear that is about to be engaged. It effectively prevents issues such as difficulty in engaging gears and eliminates the noise of gears during shifting. Without a synchronizer, forcibly inserting a slow-spinning gear into a fast-spinning gear would definitely result in gear grinding.
The synchronizer is essentially a friction disc arranged on the coupling sleeve and gear set. Unlike ordinary friction discs, its friction surface is conical. The purpose of this set of friction discs is to create friction before the straight teeth and the vertical teeth of the disc make contact, allowing the energy from the faster rotating side to be transferred to the slower rotating side, thereby increasing the speed of the slower side to synchronize with the faster side. This not only ensures normal gear shifting but also acts as a buffer, and the number and material of the conical friction disc set directly affect the performance of the synchronizer.
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