Abstract: The disclosure is directed to a rotary engine having an annular housing with at least three internal walls equiangularly disposed about a central axis. At least two sliding pistons are disposed within the housing and in sliding contact with the walls. Two rotating valving assemblies enclose the opposite sides of the sliding pistons so that as the pistons slide, intake and compression chambers are formed. The valving assemblies sequentially provide the charge and exhaust of the engine. The sliding pistons are coupled to a central shaft and provide torque for the shaft.

Abstract: The disclosure is directed to a rotary engine having an annular housing and a plurality of walls disposed around the interior of the housing with adjacent walls joined by rounded corners. A plurality of sliding pistons are disposed within the interior of the housing spaced apart from one another and connected radially to a drive shaft extending through the interior of the housing along the central axis thereof. The sliding pistons having face portions adapted to slide adjacent the inner surfaces of the walls are disposed radially outward of the drive shaft. End plates disposed at opposite sides of the housing and intersecting the central axis thereof enclose the opposite sides of each sliding piston which extend to adjacent the inner surfaces thereof. The sliding pistons are guided around the plurality of walls and rounded corners of the housing chamber by cams attached to the end plates.