Abstract: An axial vane rotary device (14) includes a stator (16)with a cylindrical internal chamber (34) defined an annular outer wall (40) and two side walls (36, 38) of the stator. Each side wall has an annular cam surface (42, 44). A rotor (54) is rotatably mounted within the chamber. The rotor has an annular outer wall (66) and a plurality of angularly spaced-apart, axially extending slots (64) extending therethrough. A vane (68) is slidably received in each slot. The vanes reciprocate axially and alternatively expand and compress spaces between adjacent vanes and the cam surfaces as the rotor rotates. The cam surfaces have alternating first portions (92) and second portions (90). The second portions are further from the rotor than the second portions. The first portions of one said cam surface are aligned with second portions of another said cam surface. The slots extend radially outwards on the rotor to the annular outer wall thereof.

Abstract: A fluid compressor with bearing means disposed inside a rotary member includes a cylinder having an inner circumferential surface therein; supporting means for rotatably supporting both ends of the cylinder; a rotary member arranged in the cylinder so as to extend in the axial direction of the cylinder and be eccentric thereto, the rotary member having a spiral groove formed on an outer circumferential surface thereof, the spiral groove having pitches gradually narrowing with a distance from a suction-side end to a discharge-side end of the cylinder; a spiral blade fitted in the spiral groove so as to be slidable in the radial direction of the rotary member; and drive unit for rotating the cylinder and the rotary member, wherein the supporting member is characterized in that the supporting member is extended inwardly the rotary member from a base portion fixed to the case.

Abstract: A rotary-vane machine including a first and a second stationary end member connectable to one another, a rotor body contacting one face of the first end member and having a first shaft rotatably mounted in the first end member, at least two first vanes located inside the rotor body and rigidly connected thereto, a rotor cover plate fluid-tightly attachable to the rotor body, a second shaft mounted in, and extending beyond, the rotor body and rotor cover plate, and rotatable relative thereto, at least two second vanes fixedly attached to the second shaft, the second vane subdividing the spaces into chambers, a plurality of ducts in the first end member and in the bottom of the rotor body, enabling communication, at predetermined angular relationships between the rotor body and the first end member, between the fluid-handling chambers and the outside of the machine, and cams adapted to act upon the second shaft and, thus, on the second vane to periodically accelerate them and periodically decelerate them, where