Abstract: An orbital internal combustion engine including a pair of rigidly interconnected opposed cylinders having a pair of rigidly interconnected pistons reciprocally mounted therein with the pistons each including a rigid piston rod rotatably journaled to a crank throw on a crankshaft. The rotatable cylinders and the crankshaft rotate about axes that are spaced in relation to each other whereby the cylinders orbit in relation to the crankshaft and crank throw to impart a power stroke of 360 degrees to the crankshaft when the cylinders have orbited 180 degrees. Each piston includes a crown with recesses on each side thereof associated with a pair of spark plugs in the cylinder head to shape the charge formed by the combustible mixture for imparting a greater expansion force against the piston rather than against the cylinder wall.

Abstract: A fuel-injected piston combustion engine with centrally rotating cylinder block and cylinder arranged centrally therein, the rotating cylinder block being surrounded by a stationary housing which seals it off by sealing rings, the housing being provided with two scavenging ports between angles of rotation 180.degree. and 270.degree. calculated in direction of rotation from injection nozzles, an outlet port discharging expanded gases, while an inlet port is connected with a scavenging blower. On both sides in the stationary housing there is mounted eccentrically to the axis of the housing a linear uncranked drive shaft having a rigidly attached connecting arm which at an opposite end, in a piston, is pivotally mounted movable back and forth in the cylinder, arranged in a centrally rotating cylinder block mounted free of forces, in the vicinity of a piston end wall in a connecting rod bearing.

Abstract: An internal combustion engine comprises multiple cylinder blocks in series rotatablely mounted in a single casing. The cylinder blocks each define multiple cylinders along a circumferential portion of the cylinder block to receive a piston in each one. The casing forms multiple spark plug holes and defines multiple exhaust ports and multiple intake ports in the periphery thereof. Each the cylinders is accessible to the spark plugs, the exhaust ports and the intake ports upon rotation of the cylinder block. The spark plugs, the exhaust ports and the intake ports of various cylinder blocks are staggered.

Abstract: A rotary combustion engine construction includes an engine block (20) defining a cylindrical inner space (22) in which a toothed ring portion is integrally attached with the engine block (20), and a cylindrical block (40) rotatably and snugly fitted in the cylindrical inner space (22) of the engine block (20). A number of spark plugs (30) are installed on the engine block (20) at angular intervals.

Abstract: A two cycle radial engine assembly ?10! includes a crankcase assembly ?12! supporting an annular cylinder closure means ?23! having a part-spherical sealing surface ?26! against which the correspondingly formed outer ends of cylinders ?19!, disposed in a rotary cylinder assembly ?20!, operatively seal. A crankshaft assembly ?11! supported by said crankcase assembly operates pistons ?14! within the cylinders ?19! which are spaced evenly about the crankshaft axis with the axes of the cylinders contained in a common radial plane ?29!. The cylinder assembly ?20! is gear connected to the crankshaft ?11! for rotation in the reverse direction to the crankshaft ?11! and inlet and outlet ports ?40/41! extending through the cylinder closure means ?23! communicate sequentially with the rotating cylinders ?19! to enable inlet and exhaust gases to be induced into or expelled from the cylinders.

Abstract: On the rotary drive shaft (10) of a four-stroke engine is non-rotationally mounted a hub (11) supporting four cylinders (14) wherein pistons (16) are arranged for reciprocal movement radially towards the hub. The hub (11) is provided with a combustion chamber (25) having common inlets and outlets (26, 27) formed in a valve ring (28) rotating together with the hub (11) and sealingly abutting against a stationary port ring (30) having intake and exhaust ports (36, 37) communicating with inlet and outlet channels (34, 35) arranged alternately to assume a position in registry with the inlets and outlets (26, 27) associated with the respective combustion chamber (25). One spark plug (46) for each combustion chamber (25) is arranged to rotate with the hub (11) with the spark plug electrode end projecting into the associated combustion chamber opposite the common valve ring inlets and outlets (26, 27).

Abstract: A radial engine assembly (10) includes a crankcase (12) supporting an annular cylinder closure means (23) having a part-spherical sealing surface (26). A crankshaft (11) supported by the crankcase (12) operates piston (32) within radial cylinders of a coplanar cylinder assembly (20). The crankshaft (11) and the cylinder assembly (20) are geared for reverse rotation. A main connecting rod (16) is journalled to the crankshaft (11) and the other connecting rods (17) are journalled to the main connecting rod (16). Circumferentially extending inlet ports (60, 61) communicate respectively with primary and secondary barrels of a fuel/air supply device.

Abstract: The reciprocating engine which is particularly useful as an internal combustion engine, comprises a housing (1) with, mounted to rotate about a first axis of rotation (7), a cylinder rotor (5) having three pairs of cylinders (15) which are angularly offset in respect of one another by 120.degree. about the first axis of rotation (7). Disposed in the cylinders (15) are pistons (17) which are rigidly connected to one another in pairs by piston rods (19). Also mounted in the housing is a crank shaft (23) which is rotatable about a second axis of rotation (25) which is axially parallel with and offset by a predetermined eccentricity (e) in relation to the first axis of rotation (7). The piston rods (19) of the pairs of pistons are guided on the crank shaft (23) by means of eccentric bearings (27, 31). The eccentric bearings (27, 31) define in relation to the crank shaft (23) fixed axes of rotation (33) which, are angularly offset by 120.degree. in respect of one another.

Abstract: An internal combustion engine has at least one piston (15, 16) which moves back and forth in a cylindrical piston bore (13, 14) and drives a rotationally supported crankshaft (30) through a connection rod (24, 25). The piston bore (13, 14) is arranged in a rotary element (10) rotationally supported in a housing (1). The rotary element (10, 17) and crankshaft (30) are cinematically coupled through a gear (40, 41, 42, 43) so that they can rotate in opposite directions (60 or 61). The piston bore (13, 14) arranged in the rotary element (10) communicates with an opening (20, 21) in the outer surface of the rotary element (10, 17) which moves past an inlet opening (50) and an outlet opening (51) in the housing (1) during rotation of the rotary element (10).

Abstract: A rotary reciprocating internal combustion engine is disclosed and includes a rotor with a set of four pistons driving respective spaced apart cranks. Each of the ends of the rotating cranks extends through a bearing in support plates on the rotor and includes a crank gear meshing with the teeth of a larger ring gear. The larger ring gear is fixed on the housing of the engine and is axially aligned with the rotor. The crank gears drive the rotor which in turn is fixed to and drives a power take off shaft. As the rotor is driven in the housing, fuel is supplied to the cylinders and combustion gasses are exhausted through openings formed in the housing. A pair of fuel intake ports, exhaust ports and spark plugs are provided for the four cylinders and pistons such that eight piston strokes are provided for each revolution of the power take off shaft.

Abstract: A valve-free engine of 4n (4, 8, 12, etc.) cylinders comprises a fixed inner assembly comprising a pair of sun gears, a fixed outer assembly comprising fore and aft elements and a rotatable intermediate assembly. Each outer assembly element has an intake port and an exhaust port spaced circumferentially and offset from intake port and exhaust port of the outer element. Eight (or 4n) pairs of planetary gears rotate about the sun gears to control the in and out movement of pistons within a plurality of cylinder heads in a controlled pattern so that the distance of each diametrically opposite piston from the fixed inner assembly changes constantly and equally. The cylinder heads support piston cylinders along axes that are oblique to radii from said fixed shaft at a constant angle to said radii that is constructed and arranged to propel its piston in the direction of rotation of the intermediate assembly.

Abstract: A rotating and reciprocating positive displacement mechanism which draws in a metered volume of gas and then expands or compresses that quantity of gas before expelling it. The mechanism has useful application as a compressor, a compressed gas motor, an expanding vapor engine, or a hot gas engine, where generation of heat by combustion can be either internal or external to the expansion mechanism. The primary advantages of the mechanism over conventional mechanisms used in these applications include (1) few moving parts, (2) easily constructed parts of simple geometry, (3) feasibility of compound operation (i.e. two-stage expansion or compression), (4) relatively constant input or output torque throughout the operating cycle, and (5) relative absence of high pressure peaks during the operating cycle (even when used as an internal combustion engine).

Abstract: An internal combustion rotary engine of the type comprising a rotor, an output shaft eccentric to the rotor, pistons reciprocable in and out in the rotor relative to its axis of rotation, and piston rods connecting the pistons to the shaft. This rotary engine is characterized by the absence of dead points in the course of the pistons and piston rods, by connection of the piston rods to the output shaft to maintain substantial leverage for the action of the pistons on the output shaft, and by a simple connection between the output shaft and the rotor to concurrently synchronize them.

Abstract: A fluid pressure device of the type having reciprocating pistons disposed in associated cylinders formed in an engine block that rotates conjointly with a drive shaft mounted eccentrically to the spin axis of the engine block. The length of the piston strokes is determined by the offset distance between the spin axis of the engine block and the spin axis of the drive shaft, said respective axes being parallel to one another.At least two axially spaced banks of radially disposed pistons and complementally formed cylinders are provided, and base plate means serve to rigidly interconnect axially adjacent pistons of the respective banks. Axially spaced bridle rings retain the opposed ends of the base plates and serve to rigidly interconnect diametrically opposed pairs of pistons.Openings formed in a stationary cylindrical housing transiently align with the rotating cylinders to provide the valving means for the device.

Abstract: An internal combustion rotary engine in which only a single spark plug is utilized to ignite fuel/air mixture located within a single cylinder. Within the cylinder is located a pair of pistons mounted in a back-to-back relationship. A power output shaft is attached to the cylinder. The pistons connect with a connecting shaft assembly which extends through an access opening assembly formed within the cylinder. The cylinder is rotatably mounted within the fixed engine housing. The connecting shaft assembly connects with an auxiliary power output shaft. An appropriate fuel/air inlet port is provided within the fixed engine housing and there is also provided an exhaust port. Each piston incurs a power stroke for each single rotation of the cylinder.

Abstract: A rotor containing plural circumferentially spaced radial cylinders revolves in a concentric stationary housing around a fixed but adjustable profiled cam engaged by follower rollers on the connecting rods of pistons which reciprocate in the cylinders due to cam action during rotor rotation. A biasing spring for each piston maintains contact between the profiled cam and piston follower rollers. A secondary spring cushioned cam enables smooth transition of the piston follower rollers from an abrupt drop-off point on the main cam to a rotor torque inducing face thereof at the explosion point for each cylinder. Four cycle piston engine operation is achieved without the massiveness of a conventional fixed block piston engine of comparable displacement. The engine can be fuel injected or carburetor operated. Extreme simplicity of construction is achieved.

Abstract: A cylindrical manifold consisting of two sections back to back, each section having various chambers, the first section having an intake and compression chamber and the second section having an intake, combustion, and exhaust chamber.

Abstract: Disclosed is a rotary engine comprising a rotor, a plurality of pistons angularly mounted in the rotor, an actuator mounted for eccentric rotation relative to the axis of rotation of the rotor, a blower, a transverse actuator pin connecting each piston to the actuator, and a plurality of fixed pins connecting the rotor to the actuator. The fixed pins are mounted on the rotor, pass through clearance holes in a rotor disc which acts as a blower, and carry extension gears which mate with internal gears mounted in the actuator. Accordingly, rotation of the rotor causes rotation of the blower and of the actuator.

Abstract: A lightweight rotary engine of novel design having a sealed inner portion that allows the engine to assume any attitude during operation. The bottommost portion of each piston contains a bearing roller that is urged against a fixed eccentric post which causes rotation of the rotor assembly. There is no direct connection between the bottommost portion of the pistons and the eccentric post.The rotor consists of a pair of opposed plates for moving the cylinders in a radial direction. The space between the cylinders contains air chambers for holding air under pressure that is used to scavenge the cylinders.

Abstract: A pump supplies pressurized lubricant to an internal combustion engine from an external reservoir through a closed loop system. Delivery channels extending through the crankshaft, connecting rod and other components, supply the pressurized lubricant to the several areas of relative movement. Return channels, extending through the components, conduct lubricant from the several areas to the reservoir. Fuel-air mixture from a carburetor enters the crankcase through the open end of the crankshaft and moves through ports within the several cylinders to the respective combustion chambers. Selected ports are sequentially closed by a valve plate carried by the crankshaft. Incomplete products of combustion are exhausted into an auxiliary exhaust outlet for recycling with the fuel-air mixture. Retainer members engaging the spark plugs assist in dissipating heat therefrom.

Abstract: A two-cycle rotary internal combustion engine of the fuel injection type. A rotor having three radially disposed cylinders in equally spaced angular relation in a circular rim rotates in sealed rotation within a cylindrical stationary outer housing. The respective pistons in the cylinders are connected to the same crank arm of the crankshaft, which is in turn connected, through a planetary gear mechanism, to rotate in the same direction and at a three-to-one ratio of speed to the rotor. The outer housing has two exhaust ports and two fuel injectors in angularly spaced relation to which the cylinders are opened in timed sequence. Fresh air is supplied under pressure into the closed housing in surrounding relation to the cylinders for cooling the cylinders and for preheating scavenging air admitted to the interior of the cylinders through ports therein.

Abstract: A reciprocating piston machine useful as a pump, a hydraulic motor or an internal combustion engine has a plurality of cylinders in a carrier surrounding a central shaft. The carrier is in turn surrounded by a ported manifold. The carrier and manifold are adapted for relative rotation one to another such that the cylinders periodically open to the ported manifold. Pistons within the cylinders each describe a path in the carrier tangent to a circle in the plane of rotation of the carrier. A gear fixed to the manifold housing about the central shaft induces relative motion between the manifold and the carrier by linkage including gears and shafts and connecting rods of the pistons.In the motor and pump mode, the machine is valveless, and in the engine mode a single valve per cylinder completes the valving functions necessary for an internal combustion engine. A valving cam fixed to the manifold housing biases valving lever arms as relative motion between the manifold housing and the carrier is accomplished.

Abstract: A reciprocating and rotary internal combustion engine has a housing provided with an intake port and an exhaust port, a rotary member adapted to continuously rotate within the housing and provided with a plurality of cylindrical holes or bores in which a piston slides. A crank shaft and respective piston are connected to each other through an eccentric ring which is rotatably mounted in the piston. A set of eccentric rings are rotatably mounted on an eccentric portion of the crank shaft. Thus, a piston reciprocally moves in the individual cylindrical bores.

Abstract: A two cycle rotary internal combustion engine of the fuel injection type. A rotor having three radially disposed cylinders in equally spaced angular relation in a circular rim rotates in sealed relation within a cylindrical stationary outer housing. The respective pistons in the cylinders are connected to the same crank arm of the crankshaft, which is in turn connected, through a planetary gear mechanism, to rotate in the same direction and at a three-to-one ratio of speed to the rotor. The outer housing has two exhaust ports and two fuel injectors in angularly spaced relation to which the cylinders are opened in timed sequence. Fresh air is supplied under pressure into the closed housing in surrounding relation to the cylinders for cooling the cylinders and for preheating scavenging air admitted to the interior of the cylinders through ports therein.

Abstract: A radial engine with a rotating cylinder block is disclosed which is capable of high rates of rotation although operating on the two stroke cycle. An intake air compressor and an exhaust driven turbine are provided, both in driving connection with the same output shaft as the cylinder block. A peripheral manifold serves both to provide the stator of the exhaust turbine and to mask exhaust passages from the cylinders in the block so as to modify the two stroke cycle of the engine by effectively advancing the end of the scavenge phase. A system for recovering oil from the block is disclosed, and the block is reinforced by a peripheral tension band.

Abstract: Expansible chamber apparatus for use either as an internal combustion engine or as a pump comprising a stationary housing, a cylinder block rotatable within the housing about a central axis, a shaft secured to and rotatable with a cylinder block with the longitudinal center line of the shaft constituting the above-mentioned axis. A stationary gear is carried by the housing and surrounds the shaft. The cylinder block has a plurality of cylinders therein with the longitudinal axes of these cylinders being tangent to a circle surrounding the axis. A piston for each cylinder is reciprocable within its respective cylinder and a connecting rod and an eccentric gear are provided so as to connect each piston to the stationary gear for effecting rotation of the cylinder block and the shaft relative to the housing and for effecting reciprocation of the pistons. Inlets and outlets are provided in the housing for the inlet and outlet of fluid to the cylinders as the cylinder block rotates and as the pistons reciprocate.

Abstract: An intake/exhaust system adapted for use in rotary engines having a rotatable cylinder block with a plurality of cylinders radially arranged in the block. A plurality of passages are defined in the cylinder block to extend between the cylinders and a plurality of cylinder ports for enabling communication with the cylinders. The cylinder ports are arranged to travel in a circular path as the cylinder block is rotated. Also included are a plurality of poppet valves, each positioned in a different one of the passages to allow or inhibit communication between each of the cylinder ports and the corresponding cylinder. Manifold apparatus includes an intake port and an exhaust port spaced apart and positioned adjacent to the path traversed by the cylinder ports such that the intake port and exhaust port are each aligned with successive ones of the cylinder ports as the cylinder unit is rotated.

Abstract: A rotary-block engine is provided with an eccentrically mounted cylinder block about the main drive shaft. The radial cylinders of the cylinder block each contain a reciprocating piston which is also eccentrically mounted about a secondary shaft, so that a point on the piston traces a path in the form of a hypotrochoid while a point on the cylinder block traces a path in the form of an epitrochoid. The secondary shafts are held in place relative to the main shaft by projections engaging in grooves of the side walls of the stationary housing, or alternatively by holders rotatably mounted about the main shaft.

Abstract: A rotary-radial internal combustion engine wherein a piston-containing cylinder housing and cam means are mounted in an engine housing for relative rotary motion with respect to each other; said cylinder housing including diametrically opposite combustion chambers having mounted for reciprocation therein rigidly linked pistons provided with cam follower means engaging said cam means; said engine housing being provided with fuel intake means for feeding pressurized fuel to said combustion chambers, means for firing said fuel in said combustion chambers, and burnt fuel scavenging means for exhausting burnt fuel from said combustion chambers; the combination of said relative rotary motion between said cylinder housing and said cam means, and said reciprocatory motion of said pistons, producing per engine revolution piston thrusts numerically greater than the number of combustion chambers in said cylinder housing; said piston thrusts being translated into torque which is applied to an engine drive shaft.

Abstract: A rotary engine for two cycle operation having arcuate combustion chambers formed in a rotor and correspondingly arcuate pistons mounted for swinging reciprocation in the combustion chambers on connecting rods pivoted to the rotor. The housing contains the rotor and provides an oblong inner periphery forming a raceway for cam followers mounted on the pistons so that, when ignition of the fuel mixture occurs at the beginning of a power stroke, the pistons are forced outwardly against the relative incline of the raceway in such a manner as to cause the pistons to impart rotary motion to the rotor. At about the end of the power stroke, the movement of the rotor causes recesses formed in the rotor at the inner end of the combustion chamber to communicate with exhaust and intake ports formed in the housing on opposite sides of the rotor for venting the spent gases through one of the recesses and receiving a fresh charge of fuel mixture under pressure through the other recess in a scavenging fashion.

Abstract: A rotating piston engine for use as a combustion engine, air or gas compressor, water or hydraulic pump or motor, and the like. A stator supports a rotor which is bored to receive a double acting piston journalled on the crank of an eccentric mounted crankshaft. The crankshaft penetrates the rotor and cylinder wall in a manner to reduce the overall dimensions of the engine. Inlet and outlet ports are provided with a slide valving arrangement adapted for operation in four-stroke cycle combustion engines.

Abstract: A rotary internal combustion engine comprising a cylindrical housing with end walls, a rotating cylinder block therein having seals mounted on the outer arcuate surface of the rotating cylindrical block as well as the end surfaces thereof to provide a tight seal with the inner walls of the housing. A plurality of radially extending cylinders are provided in the rotating block, each including a piston. Connecting rods are eccentrically mounted on a single throw or single connecting pin of a crank shaft. The cylinders are offset about one-half inch axially of the crank shaft so that they reciprocate in substantially the same plane. Different sun gear arrangements are provided to enable rotation of the rotating block either in the same direction or in an opposite direction relative to the crank shaft to obtain different ratios and different numbers of power strokes per revolution of the cylindrical bloc. Either two pistons 180.degree. apart or three pistons 120.degree. apart are provided.

Abstract: A rotary engine which comprises a cylindrical casing having an annular rotor disposed therein, the casing adjacent face of said rotor cooperating with recesses formed in the face of said casing to define a fuel admission chamber and a planarwise aligned fuel compression chamber, as well as an offset exhaust chamber. A pair of piston-receiving cylindrical chambers are formed in said rotor and with said pistons being engaged to connecting rods for securement to a shaft axially normal to said casing but eccentric thereof. One of said cylindrical chambers being adapted to communicate with said fuel admission and fuel compression chambers successively upon each rotation of said shaft and said other cylindrical chamber being simultaneously successively connected with an extension of said fuel compression chamber; a fuel igniter, and said exhaust chamber.

Abstract: A piston and cylinder machine for use as a prime mover, pump or compressor in which there are at least two pairs of pistons and cylinders for each crankpin, the cylinders of each pair being disposed on opposite sides of the crankpin and rigidly connected to each other by a yoke. For each cylinder pair, there is rotatably and eccentrically mounted on the crankpin a disc rotatably received in a respective yoke and whose eccentricity relative to the crankpin is equal to that of the crankpin relative to the crankshaft whereby the piston stroke is twice the crankpin throw. The discs are integral with each other within their superimposed peripheries so that a short, stiff crankpin may be used, and they are out of phase by twice the angular separation of the pairs of cylinders.

Abstract: The invention is applied to a combustion engine having a stator and a rotor which defines, with the stator inner wall, radial rotating cylinders in which reciprocating pistons are adapted to reciprocate in such manner that the induction ports and exhaust ports in the stator inner wall communicate with each cylinder respectively during the induction and exhaust stages of a four-stroke cycle. The feature of the invention is the provision of two series of induction ports disposed in parallel. The fuel feed device of the engine has respective fuel feed means associated with each of the two series of induction ports.

Abstract: A cylinder has a head and a bottom. A piston is reciprocable in the cylinder and defines a power chamber with said head and an air compression chamber with said bottom. Controlled intake and exhaust ports are formed in said cylinder and adapted to communicate with said power chamber. Igniting means are operable to initiate a combustion of a fuel-air mixture in the power chamber. An inlet is formed in the cylinder and adapted to communicate with said compression chamber. A valve controls said inlet. The piston is adapted to perform in response to the combustion a power stroke toward a dead center near the bottom, whereby air is compressed in the compression chamber. Transfer means are provided to transfer compression air from said compression chamber to said exhaust port after said power stroke.

Abstract: A rotary internal combustion engine is disclosed and generally comprises a rotor means which is rotatably mounted on a stationary core mounted in an engine frame. The rotor means has a plurality of cylinders spaced radially thereon. A free floating piston is slidably mounted in each of the cylinders with the heads of the pistons being positioned towards the center of the rotor. A roller is mounted in the skirt end of the piston which rides against a circular cam. The centrifugal force created by the rotation of the rotor causes the pistons to follow the internal cam surface of the cam during rotation. The inner end of the core is provided with fuel and air ports adapted to communicate with the cylinders as the rotor rotates with respect to the core. An air passageway is formed in the core and is in communication with the air port and an air pump to provide a supply of air for purging, cooling and charging the cylinders.