A Revolving piston rotary annular and toroid cylinder rotary valve continuous flow and combustion expansible chamber devices, compressor and engine machine system with an outer annular cylinder housing assembly having a central axis, having one or a plurality of balanced pistons with means for attachment to a rotor and radiating through the outer rotor assembly to contact or come within close tolerance of the interior surface of the outer housing at the other extreme of the pistons, whereby, a plurality of relatively air tight compartments are formed between the interior surface of the outer housing, the outer surface of the rotor assembly and the piston or plurality of pistons with the volume of said compartment varying as a function of the rotative position of the inner cylinder and rotor assembly in relation to the isolating valve. At least one isolating valve conformably shaped and associated with a respective piston and said hollow cylinder housing pivotally connected at one end to said housing upstream and before said intake port, another end of said isolating valve being in rotary contact with said conformably shaped outer peripheral surface of said associated piston and said rotor assembly following said conformably shaped surface The rotary device can be used as a compressor having an inlet for receiving any fluid and an outlet for providing compressed fluid such as air etc. The rotary device can also have an inlet for receiving working fluid and exhaust port for venting working fluid a combustor for burning combustible fluids. The combustor can also heat an expansion gas or fluid which is introduced or mixed within the combustor simultaneously.