Abstract: An oscillating and reciprocating piston engine having a piston oscillating and reciprocating within a cylinder, a drive shaft housing attached to the cylinder, and a drive shaft turning within the drive shaft housing. The drive shaft is rotatably, slidably, and swivelably attached to the piston by means of a drive finger slidably attached to a ball in socket. The cylinder has intake, lower transfer, upper transfer, and exhaust ports which are opened and closed by a piston intake aperture, a piston transfer aperture, a piston transfer cutout, and a piston exhaust cutout, respectively. The piston both reciprocates and rotates relative to the cylinder. Steps in the transfer and exhaust cutouts, and lobes in the intake and transfer apertures, define the points at which the intake, lower transfer, upper transfer, and exhaust ports open and close.

Abstract: An internal combustion engine having at least one cylinder and reciprocating means (1) comprising pistons (12) which are slidable in said cylinders, said reciprocating means (1) and pistons (12) having a common axis, a pair of rotors (5,6) mounted on opposite sides of the axis at said reciprocating means (1) to rotate about a common axis perpendicular to the axis at said reciprocating means in opposite directions and in counter phase, connecting means (4) extending from opposite sides of said reciprocating means and engaging one of said rotors (5,6) at a distance from their common axis characterized in that a bearing connection (28,29,35) is provided between at least a portion of the piston, which is in contact with the wall of the cylinder, and the connecting means (4), allowing the piston (12) or at least a portion of the piston to be freely rotatable about its axis. This reduces the wear on the cylinder wall caused by the compression rings near the top dead center of the piston.

Abstract: The present invention relates to an internal combustion engine and, in particular, to an improved internal combustion engine having shuttles whose combined rotational and reciprocating motion produce output power and, at the same time, provide valving for the engine. In the preferred embodiment, there are two shuttles which move in opposed directions to balance the engine. The shuttles have a sinusoidal cam mounted about their periphery which is restrained so that the shuttle reciprocates and rotates within the cylinder. Each shuttle has opposed faces with recesses that mate with projections from the cylinder head to define combustion chambers. Ports are formed in the cylinder walls which communicate with ports in the shuttle sleeves to provide intake and exhaust to the combustion chambers.

Abstract: A rotary vee engine with through-piston induction includes a housing supporting a pair of rotors positioned in an obtuse angular relation and having pluralities of cylinders mounted thereon about respective rotor axes. Aligned cylinders in the opposite rotors have vee shaped double piston assemblies slidable and rotatably received therein. Fuel/air charges are inducted into the cylinders through apex ports in the piston apex portions, through fluid passages in the pistons, piston intake ports in the piston heads, and cylinder intake grooves formed in the inner walls of the cylinders. The cylinder intake grooves in each cylinder include a pair of axially elongated grooves with a trailing groove being staggered toward a cylinder head in relation to a leading groove and in relation to cylinder exhaust ports positioned opposite the grooves. The piston intake port is circumferentially elongated at least a distance to overlap both grooves.

Abstract: A method for sterilizing objects to be sterilized is disclosed, in which an object to be sterilized such as a hand piece is preliminarily brought into a wetted state, and then accommodated and air-tightly closed up within a sterilizing chamber communicated with an oxygen cylinder, oxygen fed from the oxygen cylinder is introduced into an ozonizer to produce ozonized oxygen gas having an ozone concentration of at least 10000 ppm, preferably 15000 ppm or higher, then the ozonized oxygen as is made to pass through the sterilizing chamber after it has been heated up to perfectly replace air within the sterilizing chamber by the ozonized oxygen gas, also moisture adhered to the objects to be sterilized is partly evaporated, subsequently the communication between the sterilizing chamber and the oxygen source is interrupted, the ozonized oxygen gas is circulated through the sterilizing chamber and the ozonizer while it is heated up at the inlet of the sterilizing chamber to thereby enhance the ozone concentration up

Abstract: An internal combustion engine includes a pair of opposed piston assemblies that reciprocate within a single combustion chamber in an engine block. Each piston assembly includes an annular piston head that is received concentrically around a driveshaft which is rotatably driven by the piston assemblies. A supercharging chamber is concentrically disposed about each piston assembly. Pump rings connected to each piston assembly extend into the supercharging chambers and pump air through the chambers into an intake manifold as the piston assemblies reciprocate in each direction. Cooling lubricant is circulated through the engine block and piston assemblies as well as through and along the drive shaft so as to cool the combustion chamber on substantially all sides.

Abstract: A rotary machine capable of functioning as a receiving machine or as a generating machine and comprising, in addition to the conventional control members, at least one cylinder and one piston moving in the said cylinder, the said piston having a shaft or a coaxial rod, wherein the head of the piston and the cylinder head have a relief matched to one another and arranged in such a way that the rotational movement of the piston relative to the cylinder is induced as soon as a pressure occurs in the chamber of the said machine contained between the cylinder, its cylinder head and the piston.

Abstract: The invention relates to reciprocating machines with pistons being lubricated by a gas film which is built-up by rotation of the piston in the cylinder, both piston and cylinder consisting preferably of ceramic materials. The invention relates furthermore to engines comprising rotating pistons.

Abstract: This invention refers to a piston machine, most particularly an internal-combustion machine, in which the cylinder wall performs a rotating motion round its own axis. Apertures on the cylinder wall allow it to act as a rotating slide valve, so that no valve system is needed. In the first example, the stroke movement of the piston is converted to the rotating motion of the cylinder wall (which on the same time serves as the axle of the machine) through bolts which slide or roll in linear guide-slits in the cylinder wall and curved guide-tracks on the stationary outer part of the machine. The use of the curved guide-tracks allows the adaptation of the time-law for the volume change in the working chamber, to the needs of the mechanics, thermodynamics and reaction kinetics. In the same rotating cylinder are installed two pistons of equal mass which fulfil an exactly symmetrical opposite motion, so that no free accelerating forces exist and therefore no vibrations appear on the machine.

Abstract: A novel internal combustion cycle and internal combustion engine operating thereon. Expansion of the hot combustion gases is controllably achieved in a primary combustion/expansion chamber and a secondary expansion chamber in a manner to reduce engine exhaust pressures to essentially atmospheric or below. The chambers are defined by two members movable with respect to each other within an engine block volume. Porting and fluid flow control is accomplished through the motion of the moving members. Embodiments include the use of a suction chamber which achieves subatmospheric exhaust pressures and which, in conjunction with a pressure-pumping chamber, achieves a "push-pull" effect on the fluid in the engine. Unique porting of the fuel/air mixture is provided and it includes, if desired, means to vary the fuel/air ratio during the cycle. The engine of this invention exhibits performance characteristics associated with the usual four-stroke cycle engines.

Abstract: A reciprocating-piston drive mechanism comprises a reciprocating-piston assembly defining a spherical socket and including a piston body. A connecting rod is arranged for pivoting movement in a plane and has a ball head fitted in the spherical socket. A coupling between the ball head and the piston assembly is arranged to transform the pivoting movement of the connecting rod and ball head into a reciprocating rotation of the piston body about its axis. The coupling includes a first coupling member attached to, and non-rotatable relative to, the piston body, and a second coupling member attached to, and carried by, the ball head, the second coupling member engaging the first coupling member.

Abstract: This piston design serves to increase engine horsepower, and causes less friction, while simultaneously reducing fuel consumption. It consists primarily of a propeller-topped piston, secured, by its wrist pin, in a rotatable swivel member in the top of a connecting rod, that is secured to an engine crankshaft.

Abstract: A novel internal combustion cycle and internal combustion engine operating thereon. Expansion of the hot combustion gases is controllably achieved in a primary combustion/expansion chamber and a secondary expansion chamber in a manner to reduce engine exhaust pressures to essentially atmospheric or below. The chambers are defined by two members movable with respect to each other within an engine block volume. Porting and fluid flow control is accomplished through the motion of the moving members. Embodiments include the use of a suction chamber which achieves subatmospheric exhaust pressures and which, in conjunction with a pressure-pumping chamber, achieves a "push-pull" effect on the fluid in the engine. Unique porting of the fuel/air mixture is provided and it includes, if desired, means to vary the fuel/air ratio during the cycle. The engine of this invention exhibits performance characteristics associated with the usual four-stroke cycle engines.

Abstract: A rotary device particularly useful as a rotary engine comprises a cylinder having two (or more) pairs of axially displaceable pistons, the pistons of each pair being movable towards and away from each other to define an expansible and contractable chamber therebetween. Each chamber includes fuel intake openings, exhaust openings, and spark plugs. The inner surface of the cylinder, and the outer surface of the pistons, include cooperable cam and follower means such that the displacement of the two pistons in each pair towards and away from each other also imparts a rotary motion to the pistons, the side walls of the pistons being formed with gear teeth coupling the pistons to a rotary output shaft.

Abstract: A piston machine useful as a power generating machine or a working or pumping machine is disclosed. One or a plurality of double-acting pistons having eccentric piston shafts are guided in cylindrical combustion or working chambers of a machine housing. By means of a driving joint mechanism, the pistons translate along and pivot about their longitudinal axes in oscillatory movements to either drive or be driven by an output shaft.

Abstract: A piston-type power generating machine, useful as a prime mover, internal combustion engine, pump or the like, is disclosed wherein a piston having an eccentric center of gravity with respect to its longitudinal axis is reciprocatingly guided in a cylindrical working chamber of a machine housing. The piston is connected to output conversion gears through guide slots by means of output members which penetrate the housing and which impart a rotational movement to the piston about its longitudinal axis.

Abstract: An internal combustion engine is disclosed having opposed, axially aligned, annular reciprocating and rotatable pistons connected through radially disposed crankshafts to a drive shaft which extends coaxially of the opposed pistons. The crankshafts are so supported to permit rotation about the axis of the drive shaft when a clamping brake is released, as during an idle condition. Planetary cam plates are rotated by and in timed relation to the crankshafts and serve to control valve and ignition operation for four cycle operation.

Abstract: A two stroke mechanism is described which has rotary moveable piston and cylinder-piston elements. The piston and cylinder-piston elements both rotate within a stationary body forming two variable volume chambers. The first variable volume chamber formed between the piston and cylinder-piston elements may serve as a combustion or compression chamber. The second variable volume chamber formed around the piston and cylinder-piston elements and within the stationary body may serve as a precompression chamber. Methods for balancing, sealing, intake, discharge and cooling such mechanisms are disclosed. The mechanisms are especially useful as internal combustion primer movers, external combustion prime movers, pumps and compressors.

Abstract: An internal combustion engine wherein a piston element with rectilinear sides operates within a movable cylinder-piston element having rectilinear sidewalls, and wherein the combustion chamber has a polyhedral shape. Rotatable crankshafts are mounted in each of the piston and cylinder-piston elements so that said elements follow gyratory paths in opposite directions to effect a variable volume combustion chamber. A cylindrical valve member is rotated in timed sequence to the rotation of the crankshafts so that intake and exhaust ports are sequentially opened and closed during the combustion cycles. One or both of the crankshafts may operate or be joined to a drive shaft or shafts for work output, said crankshafts being interconnected by gear means to coordinate gyratory movement of the piston and cylinder-piston elements.