A fuel package includes a vessel wherein the interior space is separated, and has a flow-out opening and a flow-in opening that lead to the interior space, a liquid fuel filled in the region at the side of the flow-out opening in the vessel, and a follower that separates the liquid fuel and the region at the side of the flow-in opening. A first filling equivalent is determined during a compression phase of the cylinder, wherein the first filling equivalent corresponds to a first average pressure difference in a first angle range of a crank angle in the compression phase. The rotation shaft of the motor may rotate the drive shaft to rotate the rotary disk base, so that the rotary disk base may be rotated at a high speed, and the silicon steel plates and the armature coil of the rotary disk base may be rotated at a high speed.