Abstract: A rotary internal combustion engine (200) of the type having a rotor assembly (216) supported in a housing (210) for rotation about a longitudinal axis (217), the housing having two spaced apart end plates (212, 213) and the axis being the axis of rotation of an output shaft (218) operatively connected at one end to the rotor assembly, the other end being free and passing through an aperture in one of the end plates, the rotor assembly including a plurality of pistons (231 to 238) mounted for reciprocating movement in respective cylinders (228) arranged in spaced relation around the longitudinal axis, and cam follower means (254) operatively connected to each piston and adapted to coact with undulating cam track means (225) supported around the axis of rotation and between the end plates, characterized in that the undulating cam track means includes an annular track mounted to a support stem or shaft (219) disposed substantially centrally thereof and extending in the direction of the longitudinal axis, the su

Abstract: A rotor assembly for a rotary power device consists of two opposed rotor sections which when assembled in the stator of the device have limited movement parallel to the axis of rotation of the rotor assembly. Each rotor section includes through running cylinders and a center passage for a drive shaft when the sections are assembled. Each rotor section defines inwardly extending support legs and a rear face which act to limit the travel of the rotor sections towards one another. The number of support legs is equal to one half of the number of cylinders in the rotor assembly. The base of the support legs includes a socket which is aligned with a socket in the rear face of the opposing rotor section. A guide pin and spring are disposed in the socket of the support leg and the guide pin extends from the socket into the rear face socket when the rotor sections are assembled.

Abstract: A rotary internal combustion engine of the type having pistons mounted for reciprocatory movement in respective cylinders which are arranged in equally-spaced relationship around a longitudinal axis of rotation, said axis being the axis of rotation of an output shaft passing rotatably and sealably through apertures of respective first and second end plates of a housing within which the pistons and cylinders move as part of a rotatable rotor assembly secured to said output shaft, while the pistons are simultaneously movable reciprocably in the cylinders, cam follower means being associated with each piston and adapted to coact with undulating cam track means around the housing. Cyclical combustion of fuel in the cylinders imparts reciprocation to the pistons with resultant thrust against the cam track means so as to cause rotation of the rotor assembly and output shaft.

Abstract: A rotary power device of modular construction is disclosed in which one or more pistons are reciprocably received in a cylinder sleeve, and the sleeve is rotatably supported in a bore within a housing. A cam and follower mechanism acting between the housing and piston governs reciprocating motion of the piston(s) within the sleeve. Rotary power can be extracted from the sleeve, or reciprocating power can be extracted from the piston(s). The rotating cylinder functions as a sleeve valve and permits, depending on the porting, use of the device as a gas-expansion engine (e.g. steam or compressed air) or pump, or as a two-stroke or four stroke internal combustion engines using spark or compression ignition. Engines built according to the invention are simples, compact, and can be perfectly balanced, and multiple engine modules may be coupled together in various configurations to form power plants of various sizes.

Abstract: A two-cycle, reciprocal piston, rotary combustion engine is provided including an outer casing, a housing disposed within and journaled from the casing about a central longitudinal axis with the housing including a plurality of parallel circularly arranged elongated cylinders spaced about the casing longitudinal axis.

Abstract: A rotary power device comprises an open ended stationary housing defining an interior having a sinusoidal cam track disposed therein and end walls closing each open end of the housing. At least one fluid inlet port and one fluid outlet port is provided in the end walls for fluid communication between the housing interior and the exterior of the end wall. A rotor assembly is disposed in the interior of the housing for rotation about the axis of the housing. The rotor assembly includes a central shaft extending axially through the interior of the housing which is rotatably carried by each of the end walls. At least one heat conducting disk is mounted on the shaft adjacent each of the end walls for rotation with the shaft. Each disk has at least two openings equiangularly located with respect to one another and aligned with corresponding equiangularly disposed openings in the other disk for mounting open ended tubular cylinder elements which extend between the disks parallel to the axis of the shaft.

Abstract: Disclosed is a rotating cylinder head for use on a barrel type engine. The cylinder head rotates about the central axis of the engine driven by the main drive shaft. The cylinder head contains an intake port and exhaust port. As the cylinder head rotates, it is timed so that the intake port and the exhaust port become positioned over a pre-selected pair of cylinders which are in respective intake and exhaust cycles. In this manner, the cylinder head functions as a valve assembly. This type of rotary valve is advantageous because it allows the engine to operate at speeds limited only by the piston assembly and not limited by the poppet valve assembly found on more conventional internal combustion engines.

Abstract: An internal combustion engine (20) has a plurality of pistons (106) reciprocating within cylinders (34) and means to translate the reciprocating motion of said pistons into rotary motion. As the cylinders (34) rotate in an engine cavity (49) about a drive shaft (24), head ends (104) of the cylinders (34) cyclically pass stationary fuel injection means (28) and a stationary exhaust aperture (30) located rotationally downstream from the fuel injection means (28). Each cylinder (34) includes a cylinder wall having an air intake port (130) provided therein. The air intake port (130) is provided at a location at which rotation of the cylinder (34) in the cavity (49) tends to force or scoop air into the cylinder (34). In particular, the air intake port (130) is provided on a rotationally leading portion of a peripheral portion of the cylinder wall.

Abstract: Two piston plates are mounted for rotation and axial reciprocation in the bore of a cylindrical housing, and at right angles to each other. Each plate carries on opposite ends thereof a pair of pistons which reciprocate in spaced bores formed in a pair of rotary cylinder plates located in opposite ends of the housing. Each cylinder plate has an integral shaft projecting therefrom to the exterior of the housing. A plurality of roller cam followers project from opposite sides of the piston plates into a sinusoidally shaped cam track formed in the bore of the housing, so that when fuel is fed into the piston bores and properly ignited, the reciprocation imparted to the piston plates causes the cam followers to roll in the undulating cam track to impart rotation to the cylinder plates and to the shafts which project therefrom.

Abstract: An engine internal-combustion engine having cylinders secured symmetrically spaced on a wheel rotor equipped with a main shaft and with their piston rods extending outwardly against a substantially saddle-shaped cam. The operation of the engine will make the reciprocating piston rods confront the undulating top surface of the cam and therefore revolve the internal-combustion cylinders themselves together with the wheel rotor along the undulating surface. The invention also includes an oil pressure cam receiver to cushion the cam confronting the piston rods and push the pistons to their maximum inward position in the cylinder to achieve a desired compression ratio of the fuel-air mixture in the combustion chamber of the cylinder.

Abstract: A four-cycle rotary engine having a generally tubular cylindrical housing with end covers rotatably supporting an output shaft extending axially of the housing, an annular cylinder block assembly, secured to and surrounding the output shaft, has a plurality of cylinders extending axially parallel to the output shaft and a piston mounted in each cylinder. Each piston has a rod constrained to move parallel to the axis of the output shaft by guides formed on the cylinder block, and each rod has roller followers engaging opposed cam tracks of a stationary drive ring secured to the housing. The cam tracks are sinusoidal, are circularly concentric with the axis of the drive shaft, define the working strokes of the cylinders, and cause the cylinder assembly and the output shaft to rotate from the reaction between each rod and the cam tracks on the combustion stroke of each piston.

Abstract: A pair of cylindrical rotor are mounted for rotation within a stator and the rotor includes a plurality of cylindrical bores annularly around each axis thereof and parallel to the stator bore. Pistons reciprocate within these bores and connecting rods or links of the pistons engage within the profile of an annular cam secured centrally to the stator so that as the rotors rotate, the pistons reciprocate due to the cam profile. By providing a set of piston and cylinders at each end, a pair of rotors and a centrally located cam, balance is achieved. The cycle can be of a diesel type with a fuel injection or of the gasoline/air mixture type with conventional spark plugs. Of importance, is the ease with which the expansion ratio can be made greater than the compression ratio thus utilizing more of the energy normally expelled and wasted in exhaust gases with the conventional cycles.

Abstract: An internal combustion four cycle engine is provided with a plurality of stationarily mounted cylinders radially arranged in equal spaced apart relationship within the inner circumference of a rotatably mounted drive drum and in parallel relationship with the axis of rotation thereof, a movable track anchorably supported by a pair of oppositely disposed raised lobes fixed to the interior webbed surface of the drum and comprised of two pairs of declining slope track quadrants serving to receive the driving thrust of each piston during its power stroke and to activate each piston during its intake, compression and exhaust strokes, and a cam ring fixed to the inner circumference of the drive drum serving to activate an intake-exhaust slide of each cylinder commensurate with the requirements of its intake, compression, power and exhaust strokes.

Abstract: A pair of cylindrical rotors are mounted for rotation within a stator and each rotor including a plurality of cylindrical bores annularly around the axis thereof and parallel to the stator bore. Pistons reciprocate within these bores and connecting rods or links of the pistons engage within the profile of a pair of annular cams secured to the stator at opposite ends thereof so that as the rotors rotate, the pistons reciprocate due to the cam profile. By providing a set of pistons and cylinders, on each side of a central common cylinder head at each end, a pair of rotors and a pair of cams one at each end of the stator, balance is achieved. A common combustion chamber is provided in the cylinder head for the pistons on the opposite sides of the cylinder head. The cycle can be of a diesel type with a fuel injection or of the gasoline/air mixture type with conventional spark plugs.

Abstract: A .[.pair of.]. cylindrical .[.rotors are.]. .Iadd.rotor is .Iaddend.mounted for rotation within a stator and .[.each rotor including.]. .Iadd.the rotor includes .Iaddend.a plurality of cylindrical bores annularly around the axis thereof and parallel to the stator bore. Pistons reciprocate within these bores and connecting rods or links of the pistons engage within the profile of a .[.pair of annular cams.]. .Iadd.an annular cam .Iaddend.secured to the stator .[.at opposite ends thereof.]. so that as the .[.rotors rotate,.]. .Iadd.rotor rotates, .Iaddend.the pistons reciprocate due to the cam profile. By providing a set of pistons and cylinders, on each side of a central common cylinder head at each end, a pair of rotors and a pair of cams one at each end of the stator, balance is achieved. A common combustion chamber is provided in the cylinder head for the pistons on the opposite sides of the cylinder head.