How does the throttle of a car get in? Was it inhaled by the piston or by something?

For naturally aspirated engines, the throttle intake relies on the vacuum generated by the high-speed movement of the piston to suck air into the cylinder;

For supercharged engines, the intake process mostly depends on the vacuum degree generated by the piston movement. The gas increased by the turbocharger can enter the cylinder faster, which improves the charging efficiency, thus increasing the proportion of air and reducing the fuel consumption ratio, so it is more fuel-efficient and more environmentally friendly.