Abstract:
A rotary expansible chamber device includes a sealable shell member with a hollow interior and a cylindrical stator member, with stepped interior surface, rigidly secured interior the shell member. A cylindrical rotor member is positioned concentrically interior the cylindrical stator member, forming a plurality of chambers with the stator member's continuously stepped, interior surface. The rotor member is supported by a central shaft member rotatably secured to the shell member. The rotor member includes a plurality of radial channels with outlets at the rotor member's periphery, adjacent the stator member's stepped interior surface. The radial channels are in fluid communication with a channel interior the central shaft member. A planar collar member is fastened to each side of the rotor member. The collar members essentially covert he cylindrical stator member circumferential to the rotor member.