Piston ring device for use in a combustion engine of a vehicle

A piston ring system of an internal combustion engine comprising:

• a cylinder;
• a piston being disposed within said cylinder;
• a ring groove being disposed around said piston, said ring groove including a first side wall, a second side wall, and an end wall;
• and
• a piston ring disposed within said ring groove, said piston ring including a compression ring portion, an oil ring portion, and an auxiliary ring portion, said oil ring portion including means for expanding and contracting said oil ring portion, said expanding and contracting means contacting said cylinder and said end wall during a power stroke of said piston, said expanding and contracting moving away from a cylinder wall during an exhausts stroke of said piston, said expanding and contracting means including a serpentine configuration biasing said compression ring portion and said auxiliary ring portion, said serpentine configuration comprising a first slope portion, a second slope portion and a third slope portion, wherein the compression ring can distribute pressure to the first slope portion so that only the first slope portion can move to slidably adhere to a wall of the cylinder during compression and explosion operations, whereby power loss due to contact of said piston ring with said cylinder is substantially minimized during exhaust strokes of said piston.