ROTARY ENGINE WITH OVEREXPANDED CYCLE

摘要

A radial vaned combustion rotary engine enclosing a longitudinal cavity has rotatably mounted thereinto a rotor with a plurality of radially extended slots equally disposed along its periphery wherein a plurality of vanes are slidable. Means for guiding the vanes in pure circular pathways are provided on both inner flat surfaces of the housing's tops. These pathways are two secant circular tracks of equal or different radii. Air alone or a mixture of air and fuel is drawn by the induction/compression vanes from the intake port and compressed in recesses alternately located along the periphery of the rotor. The after ignition hot gases power the expansion/exhaust vanes and the rotor and are exhausted through the exhaust port. If the maximum volume between the expansion/exhaust vanes is larger than the maximum volume between induction/compression vanes, the engine's operation cycle is the so-called Atkinson or Miller cycle.