What's the difference between engine valves?

The following is about "What's the difference between engine valves?" Related introduction:

The difference between intake valve and throttle valve is as follows:

1, intake valve and throttle valve are completely different things;

2. Throttle, also called throttle, controls air intake and is controlled by the accelerator pedal under your feet;

The intake valve is a piston, which is controlled by the camshaft of the engine. When the intake valve is opened, air can flow into the cylinder. Million car purchase subsidy