Rotary internal combustion engine

A rotary engine comprising two components, namely a stator, and a rotor torsionally rigid with an output shaft, of said stator and said rotor, a first component presenting a chamber the surface of which presents circular symmetry about an axis of said first component, and a second component being formed from a body which is disposed in the interior of said chamber, and of which the envelope presents circular symmetry about an axis of said second component, said envelope being similar to said chamber, said axes being fixed, mutually parallel and non-aligned, one of said components rotating about its axis, the first component being a stator and the second component being a rotor having a body torsionally rigid with the output shaft, the axis about which the envelope presents circular symmetry being a rotor axis of rotation, said axis being eccentric to the stator axis, the body presenting surface recesses acting as guides for seal means which slide along the surface of the chamber as the body rotates, and which together with the surface of the body and of the chamber define sealed chambers, said chambers “sliding” relative to the surface of the stator chamber as the output shaft rotates, wherein the seal means are split rings.