power accumulator / Brakes

By Roots Blower Principle, with the automobile braking, tire bearings drive gears and the cylinder bearings running to force air into the pressure storage cavity, which is formed by closing the Air Out of a sealed cavity. The kinetic energy of the automobile is converted to internal gas energy; while the automobile needs for speed after braking, the cavity will release the air out, nternal gas energy into kinetic energy, wheels moving. So in the process the kinetic energy supposed to be wasted was reutilized, that improves the rate at which the resource is used.