Brief Introduction to the Structure and Working Principle of a Clutch
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Clutch working principle: It is located between the engine and the transmission, used to transfer the torque stored on the engine flywheel to the transmission, ensuring that the vehicle delivers appropriate driving force and torque to the drive wheels under different driving conditions. Clutch components: The clutch consists of friction plates, spring plates, pressure plates, and a power output shaft. Below are the relevant details: 1. Clutch working states: The clutch operates in three states: disengaged when the clutch pedal is pressed, fully engaged when the clutch pedal is not pressed, and partially engaged when the clutch pedal is partially pressed. 2. Clutch operation: When the vehicle starts, the driver presses the clutch pedal, which moves the pressure plate backward, separating it from the friction plate. At this point, the pressure plate and flywheel are not in contact, so there is no relative friction. During normal driving, the pressure plate is tightly pressed against the friction plate on the flywheel, creating maximum friction between them. The input and output shafts maintain relative static friction, rotating at the same speed. The third state is the partially engaged clutch, where the friction between the pressure plate and the friction plate is less than in the fully engaged state. Here, the pressure plate and the friction plate on the flywheel are in a state of sliding friction, with the flywheel rotating faster than the output shaft. This allows part of the power from the flywheel to be transferred to the transmission. In this state, the connection between the engine and the drive wheels is akin to a soft linkage.
