In this paper we develop a system which is relative easy to made. This system is made of a container with wheels of small size (maximum load 400 kg), fixed with joints of the rods of some plunger pumps. When the auto-truck moves on the road, these pumps can deliver oil under pressure to a hydraulic accumulator fixed on the auto-truck’s platform. The stored energy can be used for different purposes like: tyre inflation; to screw in/out the wheel’s screws with hydraulic pistols; the actuation of a rotary hydraulic engine coupled with the transmission, which will supplement engine’s power when climbing a road, etc. The article presents constructional elements and calculations of such a recovery system.