Spring unit for continuously variable transmission connected to internal combustion engine in motor vehicle, is made to contact periodically with belt during operation of transmission, to produce noise

摘要

The spring unit has first conical disc pair (102), a second conical disc pair (104) and a belt (106) for transmitting a mechanical power between first conical disc pair and the second conical disc pair. The spring unit is made to contact periodically with the belt during operation of transmission (100), to produce a noise.