Abstract: An apparatus to convert linear motion to rotary motion comprising a linear reciprocating member including a track drive member to be coupled to an input device and a rotatable track member including a track to be coupled to an output device wherein the track drive member is disposed to engage the track such that when the input device moves the linear reciprocating member back and forth the track drive member moves along the track rotating the rotatable track member to convert the linear motion imparted to the linear reciprocating member by the input device to the rotary motion of the rotatable track member to operate or drive the output device.

Abstract: A hybrid engine having a plurality of combustion power assemblies disposed about an engine driveshaft on which is mounted spaced apart cams, each combustion power assembly disposed between the cams radially outward of the driveshaft and having a combustion cylinder with a fuel injector mounted thereon and with a reciprocating piston assembly disposed in each end of the combustion cylinder. A cam follower is attached to each piston assembly and engages a respective cam. An electric power assembly may be mounted radially outward from the driveshaft and adjacent at least one cam as a radial power assembly or may be mounted along the driveshaft between the two cams as an axial power assembly.

Abstract: An opposed piston engine has a driveshaft with a first combustion cylinder parallel with a driveshaft and disposed about the driveshaft at a first radius and a second combustion cylinder parallel with the driveshaft and disposed about the driveshaft at a second radius greater than the first radius. A first pair of curvilinear shaped cams are associated with the first combustion cylinder and disposed on the driveshaft and a second pair of curvilinear shaped cams are associated with the second combustion cylinder and disposed on the driveshaft outwardly of the first pair of cams.

Abstract: A rotary piston engine having a rotor with an output shaft and a plurality of longitudinally extending cylinder-forming bores, each having a slidable piston disposed therein. The rotor is contained in a housing that contains an elliptical cam track that interacts with the pistons, upon combustion, to cause rotation of the rotor. An opening in the housing end cap admits air into the cylinders on the rear side of the pistons and a port delivers air driven by the rear side of the pistons to an intake port in the side of the housing where, in response to the angular position of the rotor, the air is admitted to the front side of a piston for compression with injected fuel. The compressed fuel-air mixture is ignited and an exhaust port in the side of the housing opens to discharge the products of combustion.

Abstract: An internal combustion engine comprising a combustion chamber having a surrounding sidewall with a piston slideably disposed in the surrounding sidewall. A motion conversion mechanism is connected to the piston via a piston rod, and is operative to convert reciprocating motion of the piston into rotary motion. The motion conversion mechanism comprises a cam drum and at least one roller connected to the piston rod. A piston valve including a valve head and a valve stem extends through the piston. The piston valve is moveable between an open position and a closed position to control fluid movement through the flow passage. The valve head is pivotably connected to the valve stem and the engine includes a linkage connected to the valve head that is operative to pivot the valve head between an intake position and an exhaust position.

Abstract: The disclosure relates to reciprocating piston engines having four cylinders with a circular cross section, cylinder axes which are parallel to one another, and an output shaft. The cylinder axes, as viewed in axial section, lie at the corner points of a rectangle that is a square, with the output shaft, which extends parallel to the cylinder axes, in the center of the square. Each pair of cylinders which lie diagonally opposite one another are arranged in the same direction, as viewed axially, and in opposite directions, as viewed axially, with respect to the other pair of cylinders. The force or moment from each cylinder is transmitted to the output shaft via a dedicated rotating crank and a toothing system.

Abstract: The horizontally opposed center fired engine improves on the traditional design of the horizontally opposed engines and center fired engines with a better engine geometry. The present invention utilizes four pairs of opposing pistons to compress a larger volume of air-fuel mixture within four different cylinders. The four different cylinders are radially positioned around a center axle in order to achieve a perfectly symmetric engine geometry. The center axle consists of two different shafts spinning in two different directions, which could drastically reduce engine vibrations in the present invention. Engine vibrations are caused by a change in engine speed and result in a loss of energy. Due to the design, the present invention will only experience energy loss in the form of entropy and friction. Thus, the present invention can convert a higher percentage of chemical energy into mechanical energy than any other internal combustion engine.

Abstract: A barrel engine includes a central drive shaft and a cam plate interconnected to the drive shaft. The barrel engine includes a plurality of cylinders each having a longitudinal axis that is generally parallel with the drive shaft. The axes of the cylinders are arranged in a generally circular manner about the drive shaft. A pair of guide rods are provided, which correspond to each cylinder of the engine. Each guide rod has an axis generally parallel with the axes of the cylinders. The barrel engine includes a plurality of piston assemblies. Each piston assembly includes a piston head slidably coupled to one of the cylinders for reciprocal movement along the axis of the cylinder. Each piston assembly also includes a guide block slidably coupled to a respective pair of guide rods for guiding the piston head during reciprocal movement along the axis of the cylinder.

Abstract: This invention is a cylindrical rotary power device, usable as and convertible to a rotary internal combustion engine, pump, and/or compressor. The device incorporates an ingenious design and composition utilizing bilateral symmetry to minimize power losses and maximize efficiency. It operates with a minimum of moving parts which can be manufactured at relatively low cost and readily maintained. Also, the power device of the present invention is readily converted to an internal combustion engine by merely removing the external power source and providing fuel flow and ignition charge to the cylinders.

Abstract: An internal combustion barrel engine includes an engine housing and an elongated power shaft. A combustion cylinder and a guide cylinder are spaced apart and disposed on a common cylinder axis. A double-ended piston includes a combustion end disposed in the combustion cylinder so as to define a combustion chamber between the combustion end and the closed end of the combustion cylinder. A guide end is disposed in the guide cylinder. Combustion occurs only in the combustion cylinder and does not occur in the guide cylinder.

Abstract: A barrel-type internal combustion engine includes a power output shaft assembly with a sliding joint. A power output shaft has a pair of spaced apart bearing surfaces and a plurality of radial splines between the bearing surfaces. A cam plate has a central hub and a cam track extending therefrom. The central hub has a longitudinal bore for receiving the shaft. The bore has a pair of spaced apart bearing surfaces and a plurality of radial splines between the bearing surfaces. When assembled, the power shaft is received in the bore of the hub, the bearing surfaces are generally aligned and the splines engage such that the shaft and cam plate are coupled for rotation about the rotational axis of the shaft and the cam plate is longitudinally slidable on the shaft.

Abstract: An internal combustion engine wherein each cylinder has two pistons placed in the opposite direction and attached together by an arm-type connecting rod and wherein a cylinder head has a rotor blade rotating in the middle between the upper cylinder head and the lower cylinder head whereby the upper cylinder head and the lower cylinder head are perforated with an intake port and an exhaust port. The rotor blade is perforated with one port and rotates by a gear which is at the outer edge of the rotor blade. When the piston reaches the power stroke, it generates force to act on the arm-type connecting rod and when the connecting rod arm moves in a linear motion, it transmits the force towards the crankshaft or the transmission shaft which is attached by a guide rail platform.

Abstract: An internal combustion, reciprocating piston, motor has a rotating cylinder block. A journal bearing supports a roller that is fastened to a piston connecting rod or fastened to the piston so the roller pushes against an inclined surface on a stationary guide track fastened to a motor housing in order to cause the cylinder block and pistons to rotate. A lubricant is fed from a passageway on the rotational axis of the drive shaft radially outward, through passageways that align, and though a skirt on the piston, in order to lubricate the journal bearing. The rotating piston chambers are sealed against a stationary cylinder head by annular rings at the end of each chamber, and by curved linear seals extending between adjacent annular rings.

Abstract: An internal combustion barrel engine includes an engine housing with a first and second end. An elongated power shaft is longitudinally disposed in the engine housing and defines a longitudinal axis. A combustion cylinder and a guide cylinder are spaced apart and disposed on a common cylinder axis that is generally parallel to the central axis. The cylinders each have an inner end and an outer end, with the inner ends being closer to each other. The outer end of the combustion cylinder is closed. An intake system is operable to introduce a mixture of air and/or fuel into the combustion cylinder. A track is supported between the inner ends of the cylinders and has an undulating cam surface. The track is moveable such that the portion of the cam surface most directly between the cylinders undulates toward and away from the inner end of the combustion cylinder.

Abstract: In a double-ended barrel engine, a compression cylinder and a combustion cylinder share a common axis, with a combustion piston and a compression piston being interconnected by a connecting rod. The compression end of the engine includes a valve plate assembly with a generally flat valve plate with intake and exhaust passages defined therethrough. An intake flapper valve is disposed on the inner surface of the valve plate and selectively covers the intake passage. An exhaust flapper valve is disposed on the outer surface of the valve plate and selectively covers the exhaust passage. Additional cylinders and pistons may be provided. A compression plenum may be provided in fluid communication with the exhaust passages from one or more compression cylinders, and be in fluid communication with the intake system for the combustion end of the engine. A wastegate may be provided for venting the compression plenum.

Abstract: A drive mechanism for use in the transmission of power from a plurality of linear reciprocating power generating elements to a rotating output element. The drive mechanism includes a drive cam member having a cam follower guiding contour extending along the cam member; a drive cam follower operatively connected to each power generating element. Each follower is adapted to engage the cam follower guiding contour throughout each reciprocation cycle of the power generating elements, the drive cam follower guiding contour following a generally sinusoidal profile on the surface of the drive cam member, the profile including a series of lobes forming peaks and troughs with intermediate regions therebetween, the peak to peak amplitude of the substantially sinusoidal profile of the cam follower guiding contour on the surface of the drive cam substantially corresponding to the stroke amplitude of the stroke of the reciprocating power generating elements.

Abstract: A balanced five cycle internal combustion engine having first and second inlet and outlet annular cams configured to move first and second inlet and outlet pistons respectively within associated cylinders through successive five cycle repeating movements each of which includes (1) a power cycle, (2) an exhaust cycle, (3) a transfer cycle, (4) an intake cycle, and (5) a compression cycle. The movements of each first inlet piston and an associated first inlet cam follower being accompanied by an equal and opposite movement of a second inlet piston and an associated second inlet cam follower so that all movements of the first and second inlet pistons and the associated first and second inlet cam followers thereof are dynamically balanced.

Abstract: A compact light weight diesel cycle engine has a barrel arrangement of opposed-piston cylinders surrounding a power shaft that is rotationally supported on a plurality of transverse circular diaphragms attached at their perimeters to a sheet material shell. The cylinders are attached to and extend through at least some of the diaphragms to provide longitudinal structural members of the engine. Dual opposed cams are mounted on the power shaft at opposite ends of the cylinders and are coupled to the pistons by connecting rods. The cams are constructed to convert linear movement of the pistons to rotational movement of the power drive shaft. Toward the end of a power stroke, high pressure air is admitted to the cylinders through inlet ports that are opened before exhaust ports are opened. Heat exchangers use exhaust gas to pre-heat the air. Special fuel injectors use intersecting fuel jets to provide a high level of fuel atomization, turbulence, and dispersion in the cylinders.