Abstract: A rotary compressor or pump has a cam with a plurality of lobes mechanically engaging a plurality of pistons. The lobes urge the pistons from an open to a closed position within a piston void, the closure of the piston into the piston void creating compression or pressure of a material. Each piston is linked to another piston, and as one piston is closed by the cam, the other piston is opened by a linkage.

Abstract: A rotary compressor or expander include a cylindrical housing chamber, a rotatable cylindrical rotor mounted eccentrically with respect to housing chamber center, a cylindrical rotor liner free to move around the rotor, and a pivoting generally circular arc vane hinged to the rotor liner. Cavity or buckets engraved to the outer surface of the rotor liner together with corresponding inlet nozzle flow provide additional momentum impulse transfer from working fluid to expander eccentric rotor. The inlet of the rotary expander is equipped with a rotating valve synchronous to the eccentric rotor, regulating the admission time and duration of the entering working fluid. The exhaust of the rotary compressor is equipped with either a check valve or a rotating valve synchronizing the fluid discharge time and duration.

Abstract: A compressor includes a compression mechanism having lower and upper stage compression chambers. Refrigerant compressed in the lower-stage compression chamber is further compressed in the higher-stage compression chamber. An intermediate injection pipe is arranged to inject refrigerant between the lower-stage and the higher-stage compression chambers. The compression mechanism includes at least one fixed member having a fixed end plate, and at least one movable member having a movable end plate section facing the fixed end plate with at least one of the compression chambers interposed between the end plate sections. At least one intermediate back pressure chamber is formed to face a back surface of the movable end plate section. The intermediate back pressure chamber communicates with a discharge side of the lower-stage compression chamber, and is arranged such that internal pressure of the intermediate back pressure chamber acts on the movable end plate section.

Abstract: A fluid machine includes an inflow passageway arranged and configured to introduce fluid from outside into inner and outer fluid chambers of a first eccentric rotation mechanism, a communication passageway arranged and configured to introduce fluid discharged from the inner and outer fluid chambers of the first eccentric rotation mechanism into inner and outer fluid chambers of a second eccentric rotation mechanism, and an outflow passageway arranged and configured to allow fluid discharged from the inner and outer fluid chambers of the second eccentric rotation mechanism to flow to outside. Each of the first and second eccentric rotation mechanisms preferably includes a cylinder, a piston, and a blade. A drive shaft has a main shaft portion and first and second eccentric portions arranged to engage the first and second eccentric rotation mechanisms.

Abstract: A rotary compressor or expander include a cylindrical housing chamber, a rotatable cylindrical rotor mounted eccentrically with respect to housing chamber centre, a cylindrical rotor liner free to move around the rotor, and a pivoting generally circular arc vane hinged to the rotor liner. Cavity or buckets engraved to the outer surface of the rotor liner together with corresponding inlet nozzle flow provide additional momentum impulse transfer from working fluid to expander eccentric rotor. The inlet of the rotary expander is equipped with a rotating valve synchronous to the eccentric rotor, regulating the admission time and duration of the entering working fluid. The exhaust of the rotary compressor is equipped with either a check valve or a rotating valve synchronising the fluid discharge time and duration.

Abstract: A machine, such as an engine, which includes a cylinder (1), an essentially cylindrical piston (5) set on bearings and equipped with an eccentrically-set shaft (11), an inlet port or valve (8), an outlet port or valve (9), and a lever device (7), which is attached by bearings to a shaft (6) and which is intended to be in essentially tight contact with the piston (5). The cylinder (1) forms an essentially cylindrical chamber for the rotary piston (5) and a partially cylindrical chamber for the lever device (7) that moves backwards and forwards. The piston (5) is equipped, in the interior of the working chamber, with sliding-ring-type bearings (13, 14).

Abstract: A machine, such as an engine, which includes a cylinder (1), an essentially cylindrical piston (5) set on bearings and equipped with an eccentrically-set shaft (11), an inlet port or valve (8), an outlet port or valve (9), and a lever device (7), which is attached by bearings to a shaft (6) and which is intended to be in essentially tight contact with the piston (5). The cylinder (1) forms an essentially cylindrical chamber for the rotary piston (5) and a partially cylindrical chamber for the lever device (7) that moves backwards and forwards. The piston (5) is equipped, in the interior of the working chamber, with sliding-ring-type bearings (13, 14).

Abstract: A machine, such as an engine, which includes a cylinder (1), an essentially cylindrical piston (5) set on bearings and equipped with an eccentrically-set shaft (11), an inlet port or valve (8), an outlet port or valve (9), and a lever device (7), which is attached by bearings to a shaft (6) and which is intended to be in essentially tight contact with the piston (5). The cylinder (1) forms an essentially cylindrical chamber for the rotary piston (5) and a partially cylindrical chamber for the lever device (7) that moves backwards and forwards. The piston (5) is equipped, in the interior of the working chamber, with sliding-ring-type bearings (13, 14).

Abstract: The rotary piston machine contains a rotor (22) having a plurality of sector-shaped chambers (30). Each chamber (30) houses a flap piston being swivelingly mounted and reciprocated synchroneously with the rotation of the rotor (22). By each of the double acting flap pistons (32) two working compartments are confined, and always two adjacent flap pistons (32) are driven in counterphase to one another. The adjoining working compartments of adjacent piston chambers (30) are commonly connected to inlet and outlet aperture slots (44) in the periphery of the rotor (22). The inlet and outlet ports (42) and ducts (A,B,C,D,E) are provided in the stator (21) around the periphery of the rotor (22).

Abstract: A rotary piston type fluid machine comprises one or more rotary piston type fluid machine units, each comprising a doughnut type ring-shaped cylinder with an annular slit being provided in the wall at the inward periphery lying in a plane containing the annular central line of the cylinder, a rotor rotatively supported by the cylinder with the peripheral portion being shiftably received within the slit, one or more rotary pistons secured to the peripheral surface of the rotor and adapted to be shifted within the cylinder, and one or more gate valves mounted to the cylinder so as to cross the cylinder and adapted to periodically protrude into the cylinder in synchronization with the movement of the rotary pistons. The rotary piston type fluid machine unit can be utilized as a compressor, an internal combustion engine, a pump, etc. by using it singly, or as a number of the units in combination.

Abstract: A main rotatable shaft is journaled relative to a support structure and a pair of rotary pumps are driven from the main shaft. The rotary pumps include independent inlets and independent outlets and the outlets converge toward and are joined at the inlet portion of juncture structure including an outlet opening into a combustion chamber. The individual outlets for the air pumps include check valves intermediate the pumps and the aforementioned juncture structure and the combustion chamber includes ignition structure for igniting a combustible mixture therein. Further, the combustion chamber includes an outlet and a rotary motor including a rotor portion drivingly connected to the main shaft includes an inlet to which the outlet for the combustion chamber is connected.