What does that crankshaft pulley do in the car?
Drive water pump, generator, air conditioning pump work, water pump is to ensure the normal work of the engine water circulation to achieve heat dissipation, generator is to charge the battery, to ensure the normal work of various car circuits, air conditioning pump is the compressor, used for air conditioning system.
The crankshaft belt disk is the power source to drive other engine accessories. It drives the generator, water pump, booster pump, compressor and so on by the transmission belt
The crankshaft pulley was originally designed to drive the camshaft and the belt called the timing belt was used to connect them.
As a key function of the timing belt drive system, the tightening wheel is used to adjust the tightness of the timing belt, so that the transmission system is stable, safe and reliable.
The timing belt is an important part of the engine valve system, through the connection with the crankshaft and with a certain transmission ratio to ensure the accuracy of the inlet and exhaust time. When the engine is running, the piston stroke (up and down movement) valve opening and closing (time) ignition sequence (time), under the "timing" connection, always keep "synchronous" operation