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| Number | Title | Issue Date |
| 8136503 | Piston valve internal combustion engine 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 oth... | 03/20/2012 |
| 7703433 | Rotary internal combustion engine and rotary compressor 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 o... | 04/27/2010 |
| 7621254 | Internal combustion engine with toroidal cylinders The instant invention provides a torodial internal combustion engine with lengthened pistons that move through three perpendicularly intersecting torodial cylinders. The engine includes one central power ring and a pair of charge rings which intersect opposite quadr... | 11/24/2009 |
| 7556015 | Rotary device for use in an engine A rotary device for an engine includes a stator and a rotor concentric with and rotatable about an axis with respect to the stator. The rotor and the stator cooperate to provide a working chamber. A plurality of vanes are supported for radial movement on one of the ... | 07/07/2009 |
| 7318712 | Rotary piston machines comprising a displaceable inner housing In a rotary piston machine with an inner housing and rotors, the axes of the rotors are disposed at an angle to one another in order to equalize manufacturing tolerances and to reduce gap losses of such machines. ... | 01/15/2008 |
| 7225789 | Sealing intersecting vane machines 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 t... | 06/05/2007 |
| 7171941 | Positive displacement rotary device and method of use A positive displacement rotary device and method of use are provided. The rotary device includes coupled chamber halves with a drive disc having at least one drive plate rotatably engaged with the drive disc. The drive disc is mounted on a drive shaft and positioned... | 02/06/2007 |
| 7162993 | Intersecting vane machines 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 t... | 01/16/2007 |
| 6901904 | Sealing intersecting vane machines 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 t... | 06/07/2005 |
| 6729295 | Rotary piston engine A rotary piston engine having at least two rotary pistons formed as gearwheels mounted in a rotatable fashion on mutually perpendicular axes in a housing that provides a closed seal for the pistons on both faces as well as around their circumferences, is at one poin... | 05/04/2004 |
| 6588395 | Rotary internal combustion engine--designed for future adiabatic operation The engine includes a housing having a circular cavity with a rotatable flywheel defining a radially extending power piston(s) disposed therein. An abutment disc connects to a compression piston rotor and rotates synchronously with the flywheel. Compressi... | 07/08/2003 |
| 6457451 | Rotary piston engine A rotary piston engine (20) is shown that includes a housing (22) having a toroidal working chamber with inlet (56) and exhaust (54) ports. First and second piston assemblies (30 and 32), each of which includes at least one pair of diametrically opposed p... | 10/01/2002 |
| 6405703 | Internal combustion engine A rotary internal combustion engine includes a housing within which is mounted for rotation at least one rotor. The rotor includes at least one flow conduit. The flow conduit defines a compression region having an inlet proximate to the rotation axis of t... | 06/18/2002 |
| 6349695 | Articulated vane rotary internal combustion machine An internal combustion rotary power machine which functions in general accordance with the principles of the Carnot heat engine cycle without dependence upon reciprocating pistons, valves or other reciprocating mechanical components for working fluid mani... | 02/26/2002 |
| 6273054 | Internal combustion rotor-piston engine 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 ax... | 08/14/2001 |
| 6230681 | Orbital engine 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 hing... | 05/15/2001 |
| 5293849 | Continuously rotating engine apparatus 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,... | 03/15/1994 |
| 5233954 | Toroidal hyper-expansion rotary engine, compressor, expander, pump and method 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) ... | 08/10/1993 |
| 5147193 | Power conversion machine with pistons rotating in pairs relative to each other in a spherical housing The power conversion machine includes a housing which defines a spherical cavity as well as a stator which is secured within the housing on a first axis. The stator is provided with an annular groove which is disposed on an angle to the axis of the stator... | 09/15/1992 |
| 5125379 | Rotary engine A rotary engine includes a housing in which two rotors are mounted on mutually transverse axes and are provided with lobes which interact with the sides of the other rotor to provide compression and combustion chambers in which a fuel is compressed and su... | 06/30/1992 |
| 4433658 | Bi-annulus rotary engine An internal combustion engine is disclosed having valve means, ignition means, timing means and fuel distribution means configured for operation on a combustible mixture of fuel and air or other energy source. A rotor, consisting of loosely coupled rectan... | 02/28/1984 |
| 4005682 | Rotary internal combustion engine The disclosure relates to a rotary machine, the basic elements of which are generically adapted for use as a two-stage pneumatic compressor or as a four-cycle combustion engine or as a two-cycle combustion engine. The basic combination of elements of the ... | 02/01/1977 |
| 3937605 | Rotary piston machine An energy converter comprising a housing, a cylindrical chamber in the housing, a shaft rotatably mounted in the housing and lying co-axial with the chamber, the ends of the chamber being complementarily profiled and of generally sinusoidal shape, a blade... | 02/10/1976 |
