Abstract: A system for converting the energy created by the ignition of fuel in one or more cylinders of an internal combustion engine to rotational power, having a piston within each of its cylinders, includes one or more first connecting rods, each rotatingly affixed at a first end to the corresponding piston, a master crank to which each such first connecting rod is rotatingly attached at a second, a load crank and one or more second connecting rods, the number corresponding to the number of first connecting rods, each second connecting rod rotatingly affixed at one end to the master crank, and at the other end to the load crank. The second connecting rods may be of the same length as that of the first connecting rods, or of different length.

Abstract: An internal combustion engine for a vehicle, such as a motorcycle, includes a crankcase, two banks of cylinders projecting from the crankcase in a 56-57 degree V-configuration, a plurality of pushrods, and a plurality of camshafts supported by the crankcase. The two banks of cylinders include a first cylinder bank that projects from the crankcase to a first cylinder head, and a second cylinder bank that projects from the crankcase to a second cylinder head. The plurality of intake and exhaust valve pushrods extend between the crankcase and the first and second cylinder heads, driven by one intake camshaft and two exhaust camshafts.

Abstract: To lower the center of gravity of the entire engine including a speed-change actuator for realization of the lowered center of gravity of a vehicle in which the engine is mounted and to suppress the effect on an arrangement space for components above the engine. In an engine including a transmission which is provided in a power transmission pathway to a drive wheel, a counter shaft which is an output shaft of the transmission, an engine case in which a crankshaft and the transmission are accommodated, and a speed-change actuator which is attached to the engine case, the speed-change actuator is arranged below relative to the counter shaft.

Abstract: A coupler, such as a piston pin, is pivotally coupled to a piston such that the piston can pivot about a first axis relative to the coupler. The pivot pin can take various forms with unique combinations of features. A connecting rod is coupled to the coupler for pivoting about a second axis. The relative positions of the first and second axes can be shifted by pivoting an eccentric portion of the coupler to thereby vary the compression ratio of a piston cylinder within which the piston slides. The coupler comprises a pivot member engager portion that is selectively shifted from first to second positions to vary the compression rates in response to shifting of a pivot member. The pivot member engager is shifted from first to second positions as the piston approaches the bottom dead center position. The pivot member and pivot member engager disengage from one another as the piston travels away from the bottom dead center position.

Abstract: A piston rolling thrust bearing construction is constituted of a pair of bearing plates with opposing faces disposed in a spaced alignment with a rolling ball assembly positioned between the opposing faces to support relative movement between the bearing plates. The piston rolling thrust bearing is mounted to the open end of the skirt of a piston disposed in a cylinder to compensate for non-axial motion relative to the cylinder axis due to the articulating motions of connecting elements or any structural misalignments within an engine drive train assembly.

Abstract: An Otto cycle, Atkinson cycle or supercharged internal combustion engine (10) and a timing mechanism therefor. The engine comprising: a cylinder (14) and a piston (12) reciprocally mounted within the cylinder (14) in which reciprocating movement of the piston is converted into rotational movement of an output shaft (28) by way of rollers (20, 24) engaging primary (22) and secondary (26) cam means which are affixed to, and rotatable with, the output shaft (28). The timing mechanism comprising cam means (52, 53) mounted on, and rotatable in unison with, the output shaft (28), a cam follower (54, 55) arranged to engage the cam means (52) and a linkage connecting the cam follower to a pivoting rocker arm for actuating the engine's induction and exhaust valves, the rocker arm pivot being adapted to be moveable on an arcuate locus centred on the axis of the output shaft (28).

Abstract: A lubrication system comprising a bore including an inlet for receiving lubrication, an outlet for distributing lubrication, and a inner passageway extending between the inlet and outlet is provided. The outlet may be provided with a wider opening than the passageway. The outlet may further include a groove having a radius of curvature, and defined by a pair of flat or curved sidewalls, and a pair of curved end walls each extending toward the inner passageway.

Abstract: This invention discloses a non-crankshaft engine which includes the body, the cylinder head on top of the body, and the cylinder inside it. A piston intersecting with one end of a connecting rod is set in the cylinder. In the middle of the chassis where the engine body is set on, there is the basic shaft which intersects with one or more crossbars perpendicularly in way of either fixed joint or swing joint. On the crossbar is installed symmetrically on either side of the axis of the basic shaft a fixing set. It connects with the other end of the connecting rod through a swing joint. Every fixing set is joined by one or two connecting rods linked with the piston. The above structure of basic shaft, crossbar and connecting rod will result in strong explosion pressure that can produce great moment of force, and thus give the utmost work. Therefore, this invention has the advantages of high working efficiency, low energy-consumption, and is expected to produce minimum environmental pollution.

Abstract: A kinetic energy generation device comprises a case having a fixation gear wheel disposed at an interior rim thereof and engaged with a movable gear wheel. A motion transmission member is installed in the case, and a motion transmission shaft is provided at the axis of the motion transmission member. An axis gear wheel is disposed in relation to the movable gear wheel so that the axis gear heel is engaged with the motion transmission shaft. External to the axis gear wheel, a flywheel is engaged therewith and revolved in synchronization with the movable gear wheel. A force applying shaft is provided at an end of the flywheel. Each of several links Is connected to the force applying shaft with its one end and to a cylinder piston with the other end thereof.

Abstract: A two-cycle engine heaving a pair of disk wheel shaped counterweights attached to the crankshaft. The rims of the first and second counterweights provided with a plurality of parallel grooves arranged continuously around the circumference of the rims and extending from an outer edge to an inner edge of the rims. The grooves are angularly disposed with respect to an axis of rotation of the crankshaft and in a direction against the direction of rotation of the crankshaft. The grooves of the first counterweight are aligned with the grooves of the second counterweight whereby the corresponding grooves form a “V” configuration.

Abstract: A cylinder linkage method for a multi-cylinder internal-combustion engine comprising connecting piston rods (27) and pistons (28) of four or more linkage combustion and compression reversible cylinder blocks (14A, 14B, 14C, 14D, 30A, 30B, 30C, 30D) and of reversible precompression cylinder blocks (3, 8) simultaneously by one linkage rod (26), such that the linkage rod (26) is able to drive the linkage pistons (28) to move in the same direction simultaneously and to arrive at a top dead center or a bottom dead center or any same stroke position between the two dead centers of all the linkage cylinder blocks simultaneously. The cylinder linkage method for a multi-cylinder internal-combustion engine can be used to manufacture a multi-cylinder linkage compound internal-combustion engine, and further used to manufacture internal-combustion engines such as gasoline internal-combustion engine, diesel internal-combustion engine, natural gas internal-combustion engine etc.

Abstract: The invention relates to a pin boss (17) for a piston (10) for an internal combustion engine, the pin boss (17) having an inner boss surface (17a) and an outer boss surface (17b) and a boss bore (18) for accommodating a piston pin. The boss bore (18), in the vertex of the boss, has a pocket (20) the depth of which gradually decreases along the boss contour towards the outer boss surface (17b).

Abstract: A method for manipulating a piston within a cylinder of an internal combustion engine is described. The method comprises: sensing dynamic top dead centre (DTDC) and dynamic bottom dead centre (DBDC); and selectively engaging a first power transfer mechanism with the piston when DTDC is sensed and selectively disengaging the first power transfer mechanism from the piston when DBDC is sensed.

Abstract: An engine has a crankshaft, rotating about a crankshaft axis of the engine. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft such that the expansion piston reciprocates through an expansion stroke and an exhaust stroke of a four stroke cycle during a single rotation of the crankshaft. A compression piston is slidably received within a compression cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a compression stroke of the same four stroke cycle during the same rotation of the crankshaft. A ratio of cylinder volumes from BDC to TDC for either one of the expansion cylinder and compression cylinder is fixed at substantially 26 to 1 or greater.

Abstract: An electro-magnetic internal combustion engine having means to operate in an electro-magnetic configuration, in an internal combustion configuration, and in an electro-magnetic internal combustion combination configuration.

Abstract: The invention relates to a piston cam engine used in different field of the mechanical engineering, as internal-combustion engines compressors, pumps etc. The cam engine comprises cylinders (13) with pistons (20), a cylindrical tubular 3D cam (3) having a cam groove on the inner cylindrical surface and at least two guides (10) which are guide columns. The cam (3) is composed and includes two coaxial bushes (3a, 3b), each one having corrugated cam section (95a or 95b) from its one side and flange (35) from its other side besides the bushes (3a, 3b) are positioned against each other with its corrugated ends at a distance from each other, and further comprises spacer (37) between the flanges (35) of the bushes (3a, 3b), so as to form the cam groove having a constant section.

Abstract: Engine output takeout device includes: a first crank gear mounted on a first crankshaft; a second crank gear mounted on a second crankshaft; a ring gear surrounding the first and second crank gears and having inner teeth meshing with the first crank gear; and an idler gear rotatably mounted coaxially on the first crankshaft via bearings and meshing at its one position with the second crank gear and at its other position with the inner teeth of the ring gear, the first crank gear and the idler gear both meshing with a same inner tooth of the ring gear at any given time.

Abstract: An engine design incorporating at least one piston synchronized via a ratchet or sprag freewheel mechanism.

Abstract: In an engine for a motorcycle, a main shaft is supported rotatably by first and second support walls of a lower case which constitutes a part of a crank case. The center distance between the crank shaft and the main shaft is to be shortened while attaining a reduction in the number of parts and the number of assembling steps. A first bearing hole is formed in a first support wall for fitting therein and holding a first bearing which is mounted on one end of the main shaft. A second bearing hole is formed in a second support wall which permits the main shaft to be inserted therein from an opposite end side of the main shaft until one end of the main shaft is fitted in the first bearing. A second bearing is fitted and held in the second bearing hole so as to be fitted on the main shaft from the opposite end side of the main shaft after fitting of one end of the main shaft into the first bearing.

Abstract: The present invention refers to the transformation of piston alternative movement into an axle revolving movement. It increases the length of the lever and that applies the explosion strength to the axle without increasing the piston drive and therefore, the engine revolutions decrease considerably which implies a lower consumption. This technique then uses the piston—rod—bearing—sloped surface, eliminating the piston lateral efforts, obtaining a lower wear and tear and a better rings sealing with lower internal lubrication in the cylinder.

Abstract: The present invention relates to a hypocycloid engine assembly which may be used in internal combustion engines. The engine assembly is able to transfer power from a purely linear reciprocating piston to a purely rotational output shaft, increasing the efficiency and stability of the gear assembly and engine. The engine assembly may also be used in applications converting purely rotational motion to purely linear motion, for example, in air compressors or hydraulic systems.

Abstract: An engine comprising: a shaft (6) having a first multilobate cam (5a) axially fixed to said shaft (6) and an adjacent second multilobate cam (5b) differentially geared to said first multilobate and a pair of diametrically opposed pistons (1a, 1b) which pistons of a pair of pistons are rigidly interconnected by a connecting plate (4) and wherein, reciprocating motion of said pistons imparts rotary motion to said shaft via contact between said pistons and the camming surfaces of said multilobate cams.

Abstract: The invention relates to an energy converter including a combustion cylinder having a valve that, as part of a valve/piston assembly, transfers the forces generated in the combustion chamber to an electrical linear actuator, and a sealingly engaged piston that by its motion relative to the valve opens and closes a port.

Abstract: An engine includes a crankshaft, rotating about a crankshaft axis of the engine. A power piston is received within a first cylinder and operatively connected to the crankshaft such that the power piston reciprocates through a power stroke and an exhaust stroke during a single rotation of the crankshaft. A compression piston is received within a second cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a compression stroke during a single rotation of the crankshaft. A gas passage interconnects the first and second cylinders. The gas passage includes an inlet valve and an outlet valve defining a pressure chamber therebetween. The outlet valve permits substantially one-way flow of compressed gas from the pressure chamber to the first cylinder. The power piston descends to a firing position from its top dead center position.

Abstract: A hydraulic powertrain system is disclosed, in which one possible embodiment provides at least one combustion cylinder, at least one cylinder head, at least one piston. During combustion, pressure moves the piston downwards, where it creates motion in an attached hydraulic cylinder. Fluid in the hydraulic cylinder is then pressurized, where it exits the hydraulic cylinder and is directed to a fluid turbine, where work is extracted from the pressurized fluid.

Abstract: A rotary shaft, such as an automotive crankshaft, for rotation about an axis carries an eccentric substantially circular section, radially extending flap (6), connected to the radially outer surface of which is an annular housing (16) affording a cavity defined in part by radially inner and radially outer coaxial cylindrical surfaces. The axis (22) of the cavity is offset from the axis (4) of the shaft. The cavity accommodates an annular inertia mass (20) and the radially inner and outer surfaces of the cavity are opposed to radially inner and outer surfaces, respectively, of the inertia mass whereby there are two pairs of opposed surfaces. One of the said pairs constitutes bearing surfaces guiding relative motion of the inertia mass and the housing (16) about the axis (22) of the coaxial cylindrical surfaces.

Abstract: The present invention relates to a spatial cam power transmitting mechanism for the conversion between linear movement and rotary motion. Several transmitting mechanisms for the conversion between reciprocating motion of a roller shaft and rotary motion of an internal groove cam are provided, which do not have a piston and a piston bore. A roller shaft 16 is provided on a upper portion of internal groove cam 6 in a cam casing 15, and rollers are mounted to the outer end of the roller shaft. The rollers roll in a circumferential direction on the contour line of the groove of the internal groove cam 6. At the position of fixed rails 4 opposing to the roller shaft 16, guiding rollers or slide blocks 27 are provided, wherein the fixed rails 4 are provided axially in a lower portion of a cover 1 of the cam casing. The guiding rollers or slide blocks 27 can move up and down respectively in the fixed rails.

Abstract: The application relates to a driving mechanism which is comprised of a toggle rod and a ratchet wheel (61), the toggle rod is comprised of a linkage (4) and a big arm (24) of a sliding bush (14), and the driving mechanism converts reciprocating motion to rotary motion. Four parallel cylinders (2) are disposed in a cylinder block (1), a main shaft (25) is placed between the cylinders (2), and the axis of the main shaft is perpendicular to the axis of cylinders. There are two big arms (24) and two small arms (34) on the sliding bush (14). The linkage (4) is connected to the big arm (24) by a pin. Pistons (3) are reciprocated, and the big arms (24) are swayed by the linkage (4). The small arm (34) has forward and reverse detents (29). The mechanism is used in engines and other transmission mechanisms.

Abstract: An engine for a leisure vehicle including a crank chamber in which a crankshaft is disposed, a transmission chamber in which a transmission unit of the vehicle is disposed, the transmission unit having an input shaft that is coupled to the crankshaft and configured to be driven by the crankshaft, a cylinder extending from the crank chamber, and a cylinder head attached to the cylinder. The crank chamber is located above the transmission chamber, and the cylinder is disposed in such a manner that an axial direction thereof is oriented in a substantially longitudinal direction of a vehicle body of the leisure vehicle.

Abstract: A four-stoke reciprocating internal combustion engine includes the capability to change the distance between the crankshaft axis and the big end of the connecting rod and hence the maximum cylinder displacement within a combustion cycle. This provides for a given inducted volume of gases to be expanded over a greater volume. An exhaust gas aperture is uncovered by the piston towards the end of the expansion stroke. The piston and crankcase space serves as a pre-compression space for supercharging air to be inducted into the cylinder via ducts. A unitary valve device sliding axially co-operates with intake and exhaust apertures of the combustion cylinder. The unitary device extends at times into a recess in the head of the piston. A diffuse ignition source is provided. A fuel pump is operated by action of the piston.

Abstract: A gear crank mechanism for a reciprocating engine with a cylinder, a piston and a piston rod and having a pair of crank discs for each piston, with a crank pin extending between the two crank discs, in which the crank pin moves around a circular orbit path, and in which the axis of rotation of the crank discs is offset from the centre of the orbit path so that the crank pin displaces radially outwardly and inwardly relative to the centre of the crank discs.

Abstract: A method of jointly fitting or removing a piston and a cylinder liner in or from an engine block of an internal combustion engine is provided. During the fitting or removal operation, the cylinder liner is supported or held on a contact shoulder which is arranged at a connecting rod of the piston or at the piston.

Abstract: A reciprocating rotary engine of the present invention includes a torus-shaped chamber which is divided into two regions. Each divided region forms a sealed chamber. Also, each sealed chamber is divided by a piston attached to a shaft whereby four sealed chambers are formed. Also, a power converter includes two power combination devices and two motor/generator dual role electric motors. Each combination device has three rotational axes named by A, B and C, as in the case of a planetary gear unit or a differential gear unit. Following this notation, the torques of two axes, A and B are combined together and transferred to the remaining axis C. The two electric motors modulate the torque of B axis periodically in accordance with reciprocating rotary motion of the engine, to thereby provide a counterforce to oscillating power and transfer unidirectional torque to a drive shaft. Namely, the power from the engine can be more effectively converted.

Abstract: In an internal combustion engine, comprising: an upper link (11) connected via a piston pin (21) to a piston (32) that reciprocates within a cylinder; a lower link (12) attached to a crank pin (33b) of a crankshaft (33) to be free to rotate and connected to the upper link (11) via an upper pin (22); and a control link (13) which is connected to the lower link (12) via a control pin (23) and oscillates about an oscillation central shaft (24), the following equation is established when the piston (32) is at bottom dead center cos(?l+?)<cos(?l+?) where: ?l is a lower link attitude angle; and ? is a lower link aperture angle. As a result, a load acting on a crank journal when the piston is at bottom dead center can be reduced.

Abstract: A continuous Otto piston elliptical engine including cylinder and ellipse, where the cylinder includes: i. an X shape layout of the common Otto cycle pistons in a single block, ii. a coolant inlet port and a coolant outlet port (Part Nos. 42 and 43, FIG. 3), iii. where lubrication of pistons is done by the lubricating liquid splashed by the connecting arms, guide arm and the up down movement of the pistons themselves (Part No. 29, FIG. 2), iv. conventional spark plugs are placed in the cylinder (Part No. 36, FIG. 2), v. there is a contact between the guiding arm and the connecting rod which make an arc trace which force the ellipse to rotate (Part No. 29, FIGS. 2), and vi. the holes the sparkplug cables pass through (Part No. 32, FIG. 2).

Abstract: A reciprocating internal combustion engine has an engine block (100) with at least one pair of coaxially aligned cylinders (30L and 30R) in which a dual-headed piston body reciprocates. Two rack gears (27 and 28) are mounted within a central frame structure (40) of the piston body and mesh with two pinion gears (29a and 29b, respectively). The pinion gears are rotatably mounted on an axle (21) oriented approximately perpendicular to the line of reciprocate motion of the piston. A slip clutch (23a and 23b) on each pinion gear alternatively locks and unlocks the pinion gear to the axle to permit rotation of the axle in one direction as the piston reciprocates. Preferably, fuel combustion occurs alternatively in each cylinder head. A valved chamber (34L and 34R) in the cylinder head enables exhaust. Preferably, a flywheel (49) is connected to the axle.

Abstract: A four cycle internal combustion engine that eliminates the need for a crankshaft and fly wheel includes at least a cylinder and a piston reciprocally disposed in the cylinder. A spur gear and a connecting rod having a first end pivotally connected to the piston and a second end pivotally connected to the spur gear is provided. An outer ring gear engaging the spur gear, a sun gear and a plurality of planetary gears engaging the ring gear and the sun gear are provided for reciprocating the piston and a gear set so that the rotation of the spur gear translates into rotation of the sun gear. An output shaft is fixed to and rotated by the sun gear.

Abstract: A stroke control assembly for an engine. The assembly is configured to transfer power from a rectilinear moving piston by way of an interaction between a control plate and a flywheel of the assembly. The control plate is configured to phase shift or overrun the flywheel at predetermined locations of interface between a rectilinear moving piston and the control plate. In this manner, significant forces that might otherwise be applied to the control plate, may be avoided, following these predetermined locations. The control plate may also allow a firm engagement of a mechanical rectifier (one way clutch) while tracking a substantially constant velocity piston device for about 240° of rotation thereof to optimally enhance collection of power from the rectilinear moving piston.

Abstract: The present invention encompasses an engine arrangement, with in any event two piston and cylinder assemblies, where a first piston in a first cylinder, included in a first piston and cylinder assembly, is interconnected with a second piston in a second cylinder, included in a second piston and cylinder assembly, and where each one of said piston and cylinder assemblies each displays an inlet valve for the supply of a fuel mixture, and each an outlet valve for the removal of exhaust gases, said two piston and cylinder assemblies being adapted for cooperation with a gear unit converting a translation movement into a rotary movement.

Abstract: A scotch yoke type fluid device in which the pistons are decoupled from each other is provided. Each piston of the device has its own pair of sliding surfaces and its own slider. The sliding surface of each piston is disposed on the same side of a big end bearing of a crank. The main axis of the crank is movable along a path such that the pistons are neither substantially retarded nor advanced. The effective centre of mass of the crank, piston and slider remains stationary relative to the crank axis. Each piston includes a guide for constraining the piston to move along the piston axis. An intermediate member may interconnect the piston and the slides.

Abstract: A two-stroke barrel engine includes a power output shaft configured to rotate, an even number of cylinders encircling the power output shaft, wherein each cylinder includes opposing first and second power pistons configured to reciprocate within their respective power cylinder, and a pair of non-rotating wobbleplates opposed and hingedly connected to the power pistons. The wobbleplates are configured to transfer the reciprocating motion of the power pistons to rotary motion of the power output shaft via a nutating motion of the non-rotating wobbleplate.

Abstract: A conservative force coupled to the piston of a reciprocating-piston engine, refrigerator, or compressor acts to counter the pressure force on the piston that arises from the change of volume of the working substance accompanying a change in the piston position. As a result, the efficiency of the engine, refrigerator, or compressor is improved to approach the theoretical thermodynamic limit of the underlying process.

Abstract: The disclosure relates to fluid working devices including reciprocating internal combustion engines and pumps. A number of arrangements for pistons and cylinders of unconventional configuration are described, many intended for use in IC engines operating without cooling. Included are toroidal combustion or working chambers, some with fluid flow through the core of the toroid, pistons reciprocating between pairs of working chambers, fluid processing volumes partly surrounding portions of the cylinder, tensile valve actuation, tensile links between piston and crankshaft, energy absorbing piston—crank links, crankshafts supported on gas bearings, cylinders rotating in housings, injectors having components reciprocate or rotate during fuel delivery. In some embodiments pistons may rotate while reciprocating.

Abstract: An internal combustion engine including at least one engine cylinder includes a cylinder cavity with first and second stopping members interconnected by a cylinder wall, the cylinder further includes two piston members slidably moveable within said cylinder cavity and between extreme positions intermediate between two stopping members, two piston members combust between their faces and cylinder wall pushing them with their power transmittal members alternatively to revolve the cogwheel and axle. By the ratchet function of power transmittal member or cogwheel, each piston has its free returning movement without clinging with the cogwheel and axle, allowing each piston continuously and alternatively revolves the axle without waste of energy for returning movements.

Abstract: A transmission clutch pressure control apparatus is suitable for a configuration that includes a pilot valve and a pressure regulating valve working in tandem. The pilot valve produces a pilot pressure that varies in accordance with a pilot valve drive signal. The pressure regulating valve provides fluid to a clutch at an output clutch pressure that is in turn variable based on the pilot pressure. The apparatus includes a pilot pressure sensor in fluid communication with the pilot valve output and generates a pilot pressure signal. The apparatus also includes a control arrangement having a pilot valve pressure estimation block configured to produce a pilot pressure command in response to a clutch pressure command. The estimation block is configured to reflect the relationship between the clutch pressure and the pilot pressure. The control arrangement also includes a summer that produces an error signal based on the difference between the commanded and sensed pilot pressure.

Abstract: An engine having a cylinder with a bore opposed pistons disposed for reciprocation in the bore includes compliant members that allow for angular adjustment of piston structure with respect to the cylinder in response to an imbalance in forces coupled to the pistons by connecting rods.

Abstract: The invention is directed to an improved internal combustion engine, having a symmetric cylindrical arrangement and using a bevel gear train to join multiple crankshaft sections. It provides for a naturally smoother operation with less vibration than in-line engines. Better efficiency is expected with the engine than with comparable in-line engines. Manufacturing is expected to be simpler and gasket-sealing better than the in-line and V types of engines. Compactness will add to the engine's utility.

Abstract: Disclosed are crankshaft, single-plate cam and beam mechanisms that provide significant improvements in performance for 2 & 4-stroke engines, compressors and pumps. These cost effective mechanisms include linkages with the new and improved use of pivoting arms that operate with a variety of cylinder arrangements. One embodiment of the crankshaft mechanism has its crankpin roller positioned within a novel yoke-arm. The cam mechanism uses a pair of centrally positioned parallel links that are connected to roller cam followers and single or diametrically-opposed pistons. A pair of laterally extending follower arms connects to the ends of the links to provide support and alignment for the piston rods. Between the reciprocating links, cam followers and follower arms is a rotating odd-lobe plate cam. A beam mechanism uses opposite-direction extending balancing beams that are connected to links, cam followers and piston rods.

Abstract: A rotary internal combustion engine has a circular inner chamber, which houses a plurality of cylinders with reciprocating pistons that move in a radial direction towards and away from the center of the inner chamber. A flywheel with distinct vanes or portions is positioned for rotation about a central axis of the inner chamber. A gear assembly operationally connected to the reciprocating pistons forces the flywheel to rotate and impart torque to a central shaft extending though the inner chamber.

Abstract: An improved piston engine includes a rocker arm and a connecting link between the piston rod and the crankshaft to allow its motion to be altered from that of the classic piston engine in order to overcome inherent limitations of the latter and realize greater efficiency. By inserting these two components between the end of a rigidly attached piston rod and a conventional crankshaft, the motion of the piston with respect to the crankshaft can be altered in important ways. For example, the dwell at top dead center can be increased relative to dwell at bottom dead center to the point where they are equal or in fact where dwell at top dead center is greater. Furthermore, because the piston rod is not directly connected to the crankshaft, ignition of the fuel can be timed to occur before top dead center so that pressure is maximized at top dead center in order to improve efficiency. Furthermore, the piston stroke can be shortened and slowed by the geometry of the rocker arm, thus increasing engine life.