Abstract: The rotary engine includes a circular stator, a circular rotor rotating about the stator; the rotor and the stator being separated by a circular cylinder and at least one element with two flanges. The rotor includes two compression pistons attached to the inner surface of the rotor. These two pistons are located at the two extremities of a first diameter of the rotor and kept substantially in contact with the outer surface of the stator. The stator includes a recess at each extremity of a diameter. Each recess forms a compression chamber with the compression piston positioned at the end of the recess in the direction of rotation of the rotor and one of the flanges of the element with two flanges, referred to as the cylinder head flange. The motive force is applied to the compression piston when the pressure of the gases inside the compression chamber is suddenly increased to a predefined value.

Abstract: An internal combustion engine of two perpendicular, toroidal cylinders intersecting at two junctions with each cylinder containing one piston filling half of its volume. The pistons are 180 degrees out of phase; each alternately occluding one intersection or the other. Each piston completes a full power, exhaust, intake, and compression stroke in one revolution. Endplates of 45 degrees allow the combustion chamber junction to be permanently filled and sealed at all times; first by one piston, then by the tips of both pistons as the complementary-angled endplates tangentially slide past one another, and then by the other piston. Compressed gases are shunted into the crossing cylinder's combustion chamber. Both pistons orbit continuously, one-way. Airflow is also one-way. Each piston is mounted to a sealed, 360-degree, counterbalanced ring gear. One ring gear is positioned centrally and the other peripherally to prevent interference. These maintain coordination between the pistons and provide output.

Abstract: A pump apparatus including a drive shaft and a driven shaft supported by bearing members, respectively, a center plate, first external gears, second external gears, first and second side plates, first and second seal members, a pressing means for applying a pressing force between the tooth tips of the respective external gears and the seal surface of the respective seal members in a closing region disposed between the respective external gears and the respective seal members, wherein contact between inner circumferential surfaces of the bearing members and an outer circumferential surface of the drive shaft is established on the side of the closing region, while the tooth tips of the respective external gears and the seal surface of the respective seal members in the closing region are kept pressed against each other by the pressing means.

Abstract: The invention provides a toroidal intersecting vane machine incorporating intersecting rotors to form primary and secondary chambers whose porting configurations minimize friction and maximize efficiency. Specifically, it is an object of the invention to provide a toroidal intersecting vane machine that greatly reduces the frictional losses through meshing surfaces without the need for external gearing by modifying the function of one or the other of the rotors from that of “fluid moving” to that of “valving” thereby reducing the pressure loads and associated inefficiencies at the interface of the meshing surfaces. The inventions described herein relate to these improvements.

Abstract: The rotary internal combustion engine is a rotary internal combustion engine that uses the unique combination of multiple rotors on a vertical axis with piston vanes, which are intersected by horizontally oriented valve rings so that rotating rotors intersect gaps on the rotating valve rings, thus creating the intake compression and power and exhaust cycles on this internal combustion engine. The unique design allows the motor to operation as either a motor or pump. High volume of compressed air virtually eliminates the need for a storage tank. These engines are an elegant solution that fulfills the century long quest for quiet, clean, highly efficient rotary power. When available, the demand for the benefits of rotary piston power in air, surface, and marine applications, will be immediate and rewarding.

Abstract: The invention provides a toroidal intersecting vane machine incorporating intersecting rotors to form primary and secondary chambers whose porting configurations minimize friction and maximize efficiency. Specifically, it is an object of the invention to provide a toroidal intersecting vane machine that greatly reduces the frictional losses through intersecting surfaces without the need for external gearing by modifying the width of one or both tracks at the point of intermeshing. The inventions described herein relate to these improvements.

Abstract: A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second rotary compression elements are driven by the electric motor element. The refrigerant compressed and discharged by the first rotary compression element is compressed by absorbing into the second rotary compression element, and is discharged to the gas cooler.

Abstract: The invention provides a toroidal intersecting vane machine incorporating intersecting rotors to form primary and secondary chambers whose porting configurations minimize friction and maximize efficiency. Specifically, it is an object of the invention to provide a toroidal intersecting vane machine that greatly reduces the frictional losses through meshing surfaces without the need for external gearing by modifying the function of one or the other of the rotors from that of “fluid moving” to that of “valving” thereby reducing the pressure loads and associated inefficiencies at the interface of the meshing surfaces. The inventions described herein relate to these improvements.

Abstract: The invention provides a toroidal intersecting vane machine incorporating intersecting rotors to form primary and secondary chambers whose porting configurations minimize friction and maximize efficiency. Specifically, it is an object of the invention to provide a toroidal intersecting vane machine that greatly reduces the frictional losses through intersecting surfaces without the need for external gearing by modifying the width of one or both tracks at the point of intermeshing. The inventions described herein relate to these improvements.

Abstract: A rotary piston assembly including a piston housing with a central axis, and an annular chamber defined about the central axis. A pair of pistons are disposed about 180 degrees apart from one another within the annular chamber and rotate about the central axis a first angular velocity. The assembly also includes an abutment housing including a gap defined in its peripheral wall structure, and structured to rotate about an abutment axis at a second angular velocity. The abutment housing overlaps the piston housing and rotates therethrough to define an interior chamber therebetween, the first and second angular velocities being defined relative to one another so that the gap of the abutment housing rotates through the annular chamber when each of the pistons passes into and out of the interior chamber, thereby allowing the pistons to pass into and out of the interior chamber through the gap.

Abstract: An internal combustion rotor-piston engine has a main body embedding two intersecting torus-like cavities. Each cavity guides two arc-shaped pistons. A main driving shaft has a central spherical part allocating four slots under a certain angle with the axis of the main driving shaft. Each of the four pistons has two butt-end surfaces and is connected with the main driving shaft by four coupling devices with an arc-shaped sector moving along the corresponding slot on the spherical part of the main driving shaft and a pin extending into the piston, for transmitting torque to the main driving shaft. The internal combustion rotor-piston engine further has a common outlet window for the two intersecting cavities and a common outlet window for the two intersecting cavities joining an outlet pipe. Each piston has a built-in chamber of combustion on the rear part thereof.

Abstract: A rotor-piston internal combustion engine comprised of a body with two intersecting circular cylinders with pistons therein, two diametrically located ignition chambers and two cylindrical cavities, driving shaft and piston synchro mechanism with two hinges is provided.

Abstract: An internal combustion engine includes a unitary housing, having a first cylindrical housing medially and orthogonally intersecting a second cylindrical housing, with the first cylindrical housing including a first gear ring rotatably mounted therewithin, with the second cylindrical housing having a second gear ring mounted therewith, wherein the first gear ring is arranged for simultaneous rotation in communication relative to one another, with the first gear ring having a plurality of spaced piston plates, with the second gear ring including a plurality of spaced chamber plates, wherein the piston plate and the chamber plate are arranged for simultaneous positioning within an associated combustion chamber to effect projection of the piston plate upon combustion within the combustion chamber.

Abstract: An intersecting vane machine (300), based upon toroidal geometry, has a primary rotor (302) and a plurality of secondary rotors (304). The rotor (302) has a plurality of primary vanes (314) in between which exists primary chambers (316). The rotors (304) have a plurality of secondary vanes (318) in between which exist secondary chambers (320). The machine (300) achieves a cyclic positive displacement pumping action by the interaction of the primary vanes (314) with the secondary vanes (318) as the primary rotor (302) and the secondary rotors (304) rotate. The volumetric ratios between the primary chambers (316) and the secondary chambers (320) are configurable and can be made equal or unequal to one another.

Abstract: Revolving piston compressor, which consists of two hollow rings when joined, form a tunnel or "sleeve" within which a curved piston circulates. A transversely disposed disc turns in synchronized fashion with the piston to form a wall which prevents the gas acted upon by the piston from travelling around through the sleeve. As the piston approaches the disc, the disc presents a "window", which allows the piston to pass. Once the piston has passed, the disc again forms a wall, closing the compression cycle. Because the piston cannot be physically engaged from the outside, it is moved via a moving magnet.

Abstract: A device having a power rotor and a seal rotor which have coincident center points. The power rotor rotates in a plane which is perpendicular to that within which the seal rotor rotates. The power rotor has a rotor body to which are attached a plurality of outwardly extending vanes. The seal rotor has a rim gear to which are attached a plurality of inwardly extending vanes. The power rotor vanes and the seal rotor vanes interdigitate upon rotation of the rotors to define two variable volume chambers. The power rotor vanes and the seal rotor vanes are designed and constructed to insure a close mesh during such interdigitation and means are provided for adjusting the position of the power rotor vanes relative to the seal rotor vanes to insure proper interdigitation.