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| Number | Title | Issue Date |
| 7441534 | Rotary engine system This rotary internal combustion engine has two rotatable vane type pistons mounted for axial rotation in a sealed casing. In an exemplary cycle, one piston is released to rotate at or prior to initiating combustion in the combustion space between the two pistons, wh... | 10/28/2008 |
| 7347676 | System for the construction of pumps, compressor, and motor engines, formed by a rotary chamber and pistons which are driven in the same direction at varying velocities alternatively opposite to each other, inside a fixed open or closed structure A system includes a rotary chamber and pistons that move in the same direction at varying and alternatively opposite velocities to each other inside a fixed structure. The chamber is rotatively formed by two rotary partial-chambers, each partial-chamber having a pis... | 03/25/2008 |
| 7305937 | Rotary toroidal machine with piston connecting mechanism A rotary machine includes a housing divided into a first stationary portion and a second rotational portion. The second rotational portion is supported for rotation with respect to the stationary portion about an axis of the housing. The first and second portions of... | 12/11/2007 |
| 7222601 | Rotary valveless internal combustion engine A rotatably alternating air or water cooled two-stroke internal combustion engine comprising a cylindrical casing, and a rotor comprising two radially extending vanes affixed to a shaft rotatably mounted within the casing upon two end plates. Two longitudinally exte... | 05/29/2007 |
| 7182061 | Rotary internal combustion engine A rotary internal combustion engine comprising at least one but preferably a plurality of two operating chambers each having a toroidal path of travel on an interior thereof and an interactive piston assembly comprising a pair of first or driven pistons connected to... | 02/27/2007 |
| 7156068 | Rotary combustion engine The aim of the invention is to dispense with the disadvantages of previous engines either fully or partially. This is achieved by two cylindrical parts which rotate into each other, respectively possessing a wing and which can rotate about an axis of different speed... | 01/02/2007 |
| 6880494 | Toroidal internal combustion engine Toroidal internal combustion engine comprising two concentric engine rings. Intake valves are assembled in two faces of one set of pistons and exhaust valves in two faces of the second set of pistons. The intake-valve pistons are fixedly attached to one of the engin... | 04/19/2005 |
| 6276329 | Rotary machine A rotary machine, usable as an engine or as a pump, has a toroidal cylinder (25) which is swept by continuously rotating disc-like piston (34). The cylinder has a double disc valve arrangement (42, 44) at one point, so that it can be divided into a compre... | 08/21/2001 |
| 6210135 | Internal combustion rotary engine An internal combustion rotary engine includes a stationary, centrally located manifold having an intake and an exhaust port. Inner and outer rotor assemblies are provided which rotate in a common direction about the centrally located manifold. Each of the... | 04/03/2001 |
| 6158987 | Power unit for use as a pressure-fluid operated motor and/or a pressure fluid pump A power unit for use as a pressure-fluid-operated motor and/or a pressure fluid pump, the power unit comprising a cylinder space, pistons movable in the cylinder space and channels for pressure fluid. The cylinder is annular and the pistons extend radiall... | 12/12/2000 |
| 6113370 | Rotary vane machine The invention provides a rotary-vane machine having a stationary shell including a casing member (2), a camming ring (4) having an internal, noncircular camming surface (6), and a flange member (8); a rotor (10) including at least two first vanes (12) fix... | 09/05/2000 |
| 5501070 | Double-rotor rotary engine and turbine A rotary internal combustion engine has a base and a housing rotatably mounted to the base and having a rectangle-blade for forming a part of combustion chamber. An output shaft is rotatably mounted concentric with the housing and has also a rectangle-bla... | 03/26/1996 |
| 5366356 | Rotary-vane machine 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 lo... | 11/22/1994 |
| 5324182 | Rotating piston internal combustion engine with ring gear elastically coupled to the housing A rotation piston internal combustion engine has a substantially stationary housing defining a plurality of blind holes, and a rotor rotatably mounted within the housing for rotation at a substantially uniform velocity about an axis. A hub has four piston... | 06/28/1994 |
| 5040957 | Co-rotor engine with valve system A co-rotor engine with an internal valving system controlling the supply to and exhaust from motor chambers of gas under pressure. The valving system has concentric sleeves that are relatively displaced in performing the valving function.... | 08/20/1991 |
| 4687427 | Rotary internal combustion engine with uniformly rotating pistons cooperating with reaction elements having a varying speed of rotation and oscillating motion A rotary internal combustion engine comprising a stationary, water-cooled housing having a large cylindrical bore in which a hollow cylinder with end walls rotates at a uniform speed. On said cylinder a pair of wedge-shaped pistons is mounted diametricall... | 08/18/1987 |
| 4664078 | Continuously rotating internal combustion engine A substantially continuously rotating internal combustion engine. The engine has a rotatable casing with a hollow cylindrical interior cavity which includes one or more partition members. A shaft and vane assembly is also held within the cavity, and the s... | 05/12/1987 |
| 4655695 | Rotating fluid driven rotary actuator A substantially continuously rotating fluid driven rotary actuator. The actuator provides a rotary output in one direction. The turning force is generated by the opposite motion of a vane within a partitioned chamber. Rotary movement is controlled in the ... | 04/07/1987 |
| 4560328 | Rotary piston machine having a plurality of chambers containing reciprocating flap pistons 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 ... | 12/24/1985 |
| 4553503 | Rotary piston machine This invention is an internal combustion engine having arcuate pistons inside a rotating annular cylinder block which is divided into two combustion chambers by a pair of diametrically opposed cylinder heads. Each combustion chamber has an air intake port... | 11/19/1985 |
| 4455128 | Rotary internal combustion engine with uniformly rotating pistons cooperating with reaction elements having a varying speed of rotation and oscillating motion A rotary internal combustion engine comprising a stationary, water cooled housing having a large cylindrical bore in which a hollow cylinder with end walls rotates at a uniform speed. On said cylinder a pair of wedge-shaped pistons is mounted diametricall... | 06/19/1984 |
| 4434751 | Rotary piston engine The rotary piston engine has a rotatable annular cylinder and rotatable piston elements interconnected through a cross-linkage mechanism eccentrically arranged relative to the longitudinal axis of the annular cylinder for causing relative oscillatory moti... | 03/06/1984 |
| 4370109 | Rotary piston-internal combustion engine having a central axis A rotary piston-internal combustion engine has a stationary engine housing with a central axis. A rotor is positioned within the housing and includes a cylinder with first pistons integral with and spaced uniformly apart around the inner surface of the cy... | 01/25/1983 |
| 4359980 | Rotating piston engine with constant torque arm drive of its power take-off shaft A two-cylinder rotary piston internal combustion engine. Two interengaging arcuate piston-cylinder assemblies move in a circular path on an engine plane. The piston of one assembly and the cylinder of the other assembly reciprocate with respect to each ot... | 11/23/1982 |
| 4281628 | High efficiency tri-rotor ballistic engine A tri-rotor ballistic engine comprising a frame, a drum rotatably mounted on the frame having an output shaft, with a power cavity and an energy absorbing cavity defined therein. A power shaft is rotatably mounted in the drum. A reaction shaft is also rot... | 08/04/1981 |
| 4257752 | Rotary alternating piston machine with coupling lever rotating around offset crankpin A rotary piston machine is shown that is operable with a compressible fluid; such as a rotary pump, compressor or engine construction. There is a housing having an inner and an outer ring member that are rotatably mounted on a common axis. The outer ring ... | 03/24/1981 |
| 4169697 | Angular compression expansion cylinder with radial pistons An angular cylinder piston combination is disclosed for providing compression and expansion chambers in a large number of items, such as compressors, pumps, internal and external combustion engines, hydrostatic generators, air motors, and the like, in whi... | 10/02/1979 |
| 4086879 | Rotary engine with revolving and oscillating pistons A rotary engine with complemental cylindrical rotors facing each other and rotatable about a common shaft. Each rotor has an annular recess with a pair of diametrically opposed pistons mounted therein, the pistons having their outer ends projecting beyond... | 05/02/1978 |
| 3981638 | Rotary piston machine A rotary piston machine which has a substantially annular working space, which is divided by bars or the like dividing elements into a plurality of sealed chambers, the volumes of which are periodically changed. The bars or the like dividing elements are ... | 09/21/1976 |
| 3955541 | Rotary internal combustion engine with uniformly rotating pistons cooperating with reaction elements having a varying speed of rotation A rotary internal combustion engine comprising a stationary, water cooled housing having a large cylindrical bore in which a hollow cylinder with end walls rotates. On said cylinder a pair of wedge-shaped pistons is mounted diametrically opposed to simila... | 05/11/1976 |
| 3953157 | Rotary-piston internal-combustion engine with two output shafts The rotary-piston engine of U.S. Pat. No. 3,736,080 has two sets of pistons rotatable about a common axis in a casing. One set is attached to the output shaft of the engine for continuous rotation with the same while a motion-transmitting train connects t... | 04/27/1976 |
