Axially protruding and centrally cool able pistons rotate within a cylindrical main chamber. Each piston is individually kinetically linked to a flywheel. As the pistons are individually accelerated and decelerated along their continuous rotating path, rotating volumes between them angularly expand and contract. Inlets and outlets communicate fluid in correspondence with expansion and contraction phases of the rotating volumes. A low number of moving parts, area sealed volumes, no valves, balanced mass forces, smooth rotation and short force transmission paths between opposing mass forces provide for lightweight construction and high rotational speeds. Radial sliding secondary pistons of the kinetic linkage modulate secondary rotating volumes adjacent the main chamber for a dual stage thermodynamically efficient engine operation with intermittent fluid cooling or heating. Inlets and/or outlets may be angularly changed for variable compression and/or combustion engine peak pressures, expansion end pressure, for brake energy recycling and burst mode engine operation.

The present invention relates to an apparatus for pumping or compressing a fluid, the apparatus characterized by a compression chamber including an inlet and outlet, opposed front and rear vane members disposed inside said compression chamber, each vane member including at least one axially extending vane segment and at least one radially disposed open segment adapted to receive a vane segment of the opposed vane member, wherein adjacent vane segments of mating vane members form radial compartments there between. The assembly further includes a swing arm assembly for effecting equal and opposite rotational oscillation of the front and rear vane members such that adjacent vane segments oscillate toward and away from one another simultaneously, thereby creating a bellowing effect which draws fluid into the chamber via the inlet and discharges fluid out of the chamber via the outlet. The invention further relates to an assembly for translating rotational motion of an input shaft to oscillatory motion of the vane members.

The present invention relates to an apparatus for pumping or compressing a fluid, the apparatus characterized by a compression chamber including an inlet and outlet, opposed front and rear vane members disposed inside said compression chamber, each vane member including at least one axially extending vane segment and at least one radially disposed open segment adapted to receive a vane segment of the opposed vane member, wherein adjacent vane segments of mating vane members form radial compartments there between. The assembly further includes a swing arm assembly for effecting equal and opposite rotational oscillation of the front and rear vane members such that adjacent vane segments oscillate toward and away from one another simultaneously, thereby creating a bellowing effect which draws fluid into the chamber via the inlet and discharges fluid out of the chamber via the outlet. The invention further relates to an assembly for translating rotational motion of an input shaft to oscillatory motion of the vane members.

The invention relates to a compression and expansion machine comprising a body (12a) with at least one chamber (12) of revolution about an axis of symmetry, and pistons (14a, 14b, 14c, 14d) rotating about the axis of symmetry and dividing the chamber into cells (15a, 15b, 15c, 15d) rotating with the pistons, said machine furthermore comprising a device (22) for coordinating the movement of said pistons and configured so that, during one rotation cycle, each cell (15a, 15b, 15c, 15d) performs at least one first expansion/contraction cycle corresponding to a stage of compressing a first stream of gas passing through this cell and at least one second expansion/contraction cycle corresponding to a stage of expanding a second stream of gas passing through this cell.

The invention relates to a compression and expansion machine comprising a body (12a) with at least one chamber (12) of revolution about an axis of symmetry, and pistons (14a, 14b, 14c, 14d) rotating about the axis of symmetry and dividing the chamber into cells (15a, 15b, 15c, 15d) rotating with the pistons, said machine furthermore comprising a device (22) for coordinating the movement of said pistons and configured so that, during one rotation cycle, each cell (15a, 15b, 15c, 15d) performs at least one first expansion/contraction cycle corresponding to a stage of compressing a first stream of gas passing through this cell and at least one second expansion/contraction cycle corresponding to a stage of expanding a second stream of gas passing through this cell.

A rotary combustion engine system is provided with compression unit and expansions unit offset which communicate through a transfer port. Each unit defines a toroidal chamber extending annularly about a central cavity, and a plurality of curved pistons displaced within the toroidal chamber to variably form a plurality of sub-chambers therein. A rotor member in each unit is eccentrically coupled to a mechanical member and linked by a plurality of swing rod members to the curved pistons. The curved pistons of the expansion unit are advanced by recursive combustion within sub-chambers defined therebetween, to drive angular displacement of the rotor member. The rotor member in the compression unit is angularly displaced with the mechanical member to incrementally advance the unit's curved pistons for recursive compression of air within sub-chambers defined therebetween. The compressed air is recursively passed through the transfer port to the sub-chambers of the expansion unit for combustion.

A rotary combustion engine system is provided with compression unit and expansions unit offset which communicate through a transfer port. Each unit defines a toroidal chamber extending annularly about a central cavity, and a plurality of curved pistons displaced within the toroidal chamber to variably form a plurality of sub-chambers therein. A rotor member in each unit is eccentrically coupled to a mechanical member and linked by a plurality of swing rod members to the curved pistons. The curved pistons of the expansion unit are advanced by recursive combustion within sub-chambers defined therebetween, to drive angular displacement of the rotor member. The rotor member in the compression unit is angularly displaced with the mechanical member to incrementally advance the unit's curved pistons for recursive compression of air within sub-chambers defined therebetween. The compressed air is recursively passed through the transfer port to the sub-chambers of the expansion unit for combustion.

An integrated rotary expansible chamber device comprises a compressor and a pneumatic motor housed within a single engine block. The pneumatic motor includes a cylindrical casing having a pressurized gas inlet, an exhaust outlet, and an off-center output shaft with a rotor mounted on it. The rotor have spring-loaded radially sliding vanes. The vanes sealed with the casing wall by pivoted shoes. The pneumatic motor powers the compressor, supplying compressed air to a combustion chamber, which produces pressurized combustion gases to drive the pneumatic motor. The device incorporates a recess for gradual (extended) exhaust gas release, air and fuel storage tanks for rapid starting without a starter motor. In another embodiment, the pneumatic motor consists of cylindrical casing with centrally meshed radial vanes mounted on coaxial shafts, driven by inverted crank slider mechanism in the adjacent drive box. This embodiment feature labyrinth sealing for oil-free operation and versatile functionality.

An integrated rotary expansible chamber device comprises a compressor and a pneumatic motor housed within a single engine block. The pneumatic motor includes a cylindrical casing having a pressurized gas inlet, an exhaust outlet, and an off-center output shaft with a rotor mounted on it. The rotor have spring-loaded radially sliding vanes. The vanes sealed with the casing wall by pivoted shoes. The pneumatic motor powers the compressor, supplying compressed air to a combustion chamber, which produces pressurized combustion gases to drive the pneumatic motor. The device incorporates a recess for gradual (extended) exhaust gas release, air and fuel storage tanks for rapid starting without a starter motor. In another embodiment, the pneumatic motor consists of cylindrical casing with centrally meshed radial vanes mounted on coaxial shafts, driven by inverted crank slider mechanism in the adjacent drive box. This embodiment feature labyrinth sealing for oil-free operation and versatile functionality.

A three-cycle radial vane piston internal combustion engine comprising an engine block integrating a cylindrical power casing, drive box, and compressor. The power casing includes air inlet, fuel injector, spark plug, and exhaust outlet ports, and houses three or more meshed radial vane pistons mounted on centrally located coaxial shafts forming three or more chambers. The coaxial shafts extend into the drive box, each shaft having a radial crank with a bushing at its end. The bushing is fitted with a slider/shaft joint unit with the slider side is sliding within radial slots of an off-center flywheel. The crank, slider/shaft joint, radial slot, and off-center flywheel form an inverted slider-crank mechanism linking the vanes' motion through the flywheel slots. The cyclically varying chamber volumes enable combined intake and exhaust, compression, and power strokes. The engine incorporates a compressed air kick start system for starting without a starter motor.