Abstract: A drive transmission has two counter-rotating cams bearing-mounted within a housing about a rotational axis. The counter-rotating cams have asymmetrical lobe profiles which are operative to drive a corresponding pair of coaxial drive shafts in opposite directions along the rotational axis. The asymmetry of the lobe profiles prevents the cams from locking when the lobe apexes pass the top and bottom dead center positions relative to the follower or drive pins.

Abstract: A metering pump includes a motor having a motor shaft extending through a drive housing, a carriage assembly disposed around the motor shaft and within the drive housing, a plunger return block mounted to the carriage assembly, a piston disposed along an axis, and a carriage bearing disposed on the motor shaft and within the carriage assembly, slidably coupled to the carriage assembly, and configured to provide a second contact point for maintaining the alignment of the carriage assembly with the axis of the piston. The piston further includes a stroke adjuster mounted to the carriage assembly to provide a first contact point for maintaining the alignment of the carriage assembly with the piston, a drive shaft connected to the stroke adjuster, and a plunger connected to the drive shaft. The metering pump also includes a cam coupled to the motor shaft to rotate with the motor shaft and a bearing disposed around the cam to rotate therewith and to contact the stroke adjuster and the plunger return block.

Abstract: A torque drive transmission, having at least two counter-rotating cams bearing-mounted within a housing about a rotational axis. The counter-rotating cams are operative to: (i) convert a linear input to a rotary output, and (ii) drive a pair of coaxial drive shafts in opposite directions along the rotational axis. Furthermore, each counter-rotating cam defines a cam profile surface having drive and follower surfaces defining angles ? and ? respectively. The angles ? and ? are unequal to drive each cam and respective output drive shaft in an opposite rotational direction. As such, the cams may be driven in opposite directions irrespective the initial rotational position of the linear input, i.e., relative to each counter-rotating cam.

Abstract: A drive transmission, having two counter-rotating cams bearing-mounted within a housing about a rotational axis. The counter-rotating cams have asymmetrical lobe profiles which are operative to drive a corresponding pair of coaxial drive shafts in opposite directions along the rotational axis. The asymmetry of the lobe profiles prevents the cams from locking when the lobe apexes pass the top and bottom dead center positions relative to the follower or drive pins.

Abstract: A metering pump includes a motor having a motor shaft extending through a drive housing, a carriage assembly disposed around the motor shaft and within the drive housing, a plunger return block mounted to the carriage assembly, a piston disposed along an axis, a carriage bearing disposed on the motor shaft and within the carriage assembly and slidably coupled to the carriage assembly, a cam coupled to the motor shaft to rotate with the motor shaft, and a bearing disposed around the cam to rotate therewith and to contact the stroke adjuster and the plunger return block. The piston also includes a stroke adjuster mounted to the carriage assembly, a plunger having a button-shaped protrusion end, and a drive shaft having a first end connected to the stroke adjuster and a second end having a hook protrusion configured to receive and engage the plunger button-shaped protrusion end.

Abstract: It comprises one or more cylinders with pistons therein and mutually opposed power cams connected to respective first and second rotary shafts. The reciprocating pistons act on the power cams to impart a rotating motion to the rotary shafts. An attachment device is provided for connecting the rotary shafts to each other. The attachment device includes a shifting device for changing the relative angular position of the first and second rotary shafts. The result is engine distribution and compression ratio are changed dynamically.

Abstract: A radial cam engine with an optimized cam configuration can provide improve performance over crankshaft internal combustion engines. The cam configuration can include a flat-top or flat bottom piston motion, multiple lobe cam configurations, matching piston force with torque/force ratio in combustion phase, asymmetry piston motions for improved power transfer during combustion phase, and/or offset piston and cam configurations. The radial cam engine can be used in vehicles, such as hybrid vehicles.

Abstract: A radial cam engine with an optimized cam configuration can provide improve performance over crankshaft internal combustion engines. The cam configuration can include a flat-top or flat bottom piston motion, multiple lobe cam configurations, matching piston force with torque/force ratio in combustion phase, asymmetry piston motions for improved power transfer during combustion phase, and/or offset piston and cam configurations. The radial cam engine can be used in vehicles, such as hybrid vehicles.

Abstract: Torque multiplier engines, and associated methods and systems, are disclosed herein. An internal combustion engine in accordance with a particular embodiment can include a connecting rod operably coupling a pair of opposing pistons. The engine can further include a first bearing coupled to the connecting rod and positioned to engage a first cam groove of an inner cam drum. A second bearing coupled to the connecting rod can be positioned to engage a second cam groove on an outer cam drum. The first and second bearings can translate linear motion of the opposing pistons to rotation of the cam drums.

Abstract: A radial cam engine with an optimized cam configuration can provide improve performance over crankshaft internal combustion engines. The cam configuration can include a flat-top or flat bottom piston motion, multiple lobe cam configurations, matching piston force with torque/force ratio in combustion phase, asymmetry piston motions for improved power transfer during combustion phase, and/or offset piston and cam configurations. The radial cam engine can be used in vehicles, such as hybrid vehicles.

Abstract: A radial cam engine with an optimized cam configuration can provide improve performance over crankshaft internal combustion engines. The cam configuration can include a flat-top or flat bottom piston motion, multiple lobe cam configurations, matching piston force with torque/force ratio in combustion phase, asymmetry piston motions for improved power transfer during combustion phase, and/or offset piston and cam configurations. The radial cam engine can be used in vehicles, such as hybrid vehicles.

Abstract: A rotary and linear motion device includes a magnetic stator assembly, opposed electromagnetic actuators, and a linear-to-rotary converter (e.g., cam). Each electromagnetic actuator includes a coil that is configured to reciprocate relative to the magnetic stator assembly or to linearly translate in a common direction relative to the magnetic stator assembly. The electromagnetic actuators are coupled to the linear-to-rotary converter and upon reciprocation or linear translation, drive the linear-to-rotary converter in rotary or linear motion. The device may be located inside a wheel, which may be part of a vehicle. If part of a wheel of a vehicle, the device can be used to provide propulsion, steering, braking, and suspension for the vehicle.

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 centered on the axis of the output shaft (28).

Abstract: An engine structure having a conjugate cam assembly is provided and includes a piston which can be used to push or pulled by the conjugate cam assembly mounted on a camshaft through a connection rod, a roller rocker and two rollers. The conjugate cam assembly has two cams with cam profiles and relative arrangement angle which can be varied according to actual operational desire, so as to vary the ratio of intake/exhaust strokes and the ratio of compression/power strokes. Thus, the combustion efficiency and the exhaustion efficiency can be enhanced. When the camshaft finishes four strokes of an operational cycle, the camshaft only rotates one circle (i.e. 360 degree), so that the rotation speed of the camshaft can be lowered.

Abstract: A rotary cam radial engine formed of two primary components engaged at a mid section to allow for an easy repair to the vehicle. The device features a body having radially oriented apertures; and a plurality of pistons in a respective reciprocating engagement, within each respective said cylinder. The pistons are driven by low pressure fluids and/or a vacuum and the engine being formed of two main components can be taken apart without tools for maintenance and reconfiguration.

Abstract: A rotary and linear motion device includes a magnetic stator assembly, opposed electromagnetic actuators, and a linear-to-rotary converter (e.g., cam). Each electromagnetic actuator includes a coil that is configured to reciprocate relative to the magnetic stator assembly or to linearly translate in a common direction relative to the magnetic stator assembly. The electromagnetic actuators are coupled to the linear-to-rotary converter and upon reciprocation or linear translation, drive the linear-to-rotary converter in rotary or linear motion. The device may be located inside a wheel, which may be part of a vehicle. If part of a wheel of a vehicle, the device can be used to provide propulsion, steering, braking, and suspension for the vehicle.

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: An engine is disclosed. In one implementation, the engine includes a camwheel mounted to an output shaft. Eighteen cylinder-enclosed pistons are positioned in a circular plane about the camwheel such that the radius of the circular plane and the camwheel are coplanar. Lobes integrally formed on the camwheel define a guiderail including a continuously, substantially sinusoidal surface biased for rotation in the direction of the rotary motion of the output shaft. Drive bearings associated with each piston engage and maintain contact with the guiderail. The rotary motion is obtained by transferring the displacement of the plurality of pistons from respective top dead center positions and bottom dead center positions to the guiderail, thereby rotating the camwheel and output shaft.

Abstract: Torque multiplier engines, and associated methods and systems, are disclosed herein. An internal combustion engine in accordance with a particular embodiment can include a connecting rod operably coupling a pair of opposing pistons. The engine can further include a first bearing coupled to the connecting rod and positioned to engage a first cam groove of an inner cam drum. A second bearing coupled to the connecting rod can be positioned to engage a second cam groove on an outer cam drum. The first and second bearings can translate linear motion of the opposing pistons to rotation of the cam drums.

Abstract: An internal combustion engine of uniquely simple elements that combines the use of an assemblage of rotating elements to restrain cylinders radically coplanar perpendicular to centerline of the power shaft and pistons and connecting rods to a rotating coplanar reciprocating alignment with the cylinders, channels to force strokes of the pistons and connecting rods, with the energy of the power stroke and the resistance of the same by the channels producing a force that rotates the assemblage inside a ported engine housing. Engine should be lighter, able to use a variety of fuels, able to use simplified ignition systems, produce more power and be more cost efficient to manufacture and operate than existing engines of the same displacement. Once engine position and fuel is decided elements of the fuel, cooling, lubrication, ignition and electrical systems can be included in the drawings.

Abstract: An engine is disclosed. In one implementation, the engine includes a camwheel mounted to an output shaft. Eighteen cylinder-enclosed pistons are positioned in a circular plane about the camwheel such that the radius of the circular plane and the camwheel are coplanar. Lobes integrally formed on the camwheel define a guiderail including a continuously, substantially sinusoidal surface biased for rotation in the direction of the rotary motion of the output shaft. Drive bearings associated with each piston engage and maintain contact with the guiderail. The rotary motion is obtained by transferring the displacement of the plurality of pistons from respective top dead center positions and bottom dead center positions to the guiderail, thereby rotating the camwheel and output shaft.

Abstract: An engine is disclosed. In one implementation, the engine includes a camwheel mounted to an output shaft. Eighteen cylinder-enclosed pistons are positioned in a circular plane about the camwheel such that the radius of the circular plane and the camwheel are coplanar. Lobes integrally formed on the camwheel define a guiderail including a continuously, substantially sinusoidal surface biased for rotation in the direction of the rotary motion of the output shaft. Drive bearings associated with each piston engage and maintain contact with the guiderail. The rotary motion is obtained by transferring the displacement of the plurality of pistons from respective top dead center positions and bottom dead center positions to the guiderail, thereby rotating the camwheel and output shaft.

Abstract: The invention relates to an improved system for transformation of rectilinear motion into curvilinear motion, or vice versa, in an internal combustion engine. The system comprising a rotor element and a stator element, one of said the rotor element and stator element having a closed spiral profile. The spiral profile having a continuous curvilinear portion for at least 270°, and a ramp portion joining the ends of the continuous curvilinear portion.

Abstract: An engine is disclosed. In one implementation, the engine includes a camwheel mounted to an output shaft. Eighteen cylinder-enclosed pistons are positioned in a circular plane about the camwheel such that the radius of the circular plane and the camwheel are coplanar. Lobes integrally formed on the camwheel define a guiderail including a continuously, substantially sinusoidal surface biased for rotation in the direction of the rotary motion of the output shaft. Drive bearings associated with each piston engage and maintain contact with the guiderail. The rotary motion is obtained by transferring the displacement of the plurality of pistons from respective top dead center positions and bottom dead center positions to the guiderail, thereby rotating the camwheel and output shaft.

Abstract: An engine is disclosed. In one implementation, the engine includes a camwheel mounted to an output shaft. Eighteen cylinder-enclosed pistons are positioned in a circular plane about the camwheel such that the radius of the circular plane and the camwheel are coplanar. Lobes integrally formed on the camwheel define a guiderail including a continuously, substantially sinusoidal surface biased for rotation in the direction of the rotary motion of the output shaft. Drive bearings associated with each piston engage and maintain contact with the guiderail. The rotary motion is obtained by transferring the displacement of the plurality of pistons from respective top dead center positions and bottom dead center positions to the guiderail, thereby rotating the camwheel and output shaft.

Abstract: A two-stroke opposite rotary-piston engine comprises a cylinder block including a sleeve and two pistons slidely disposed therein, oppositely movable forming a common combustion chamber and a first gap with sleeve's sidewalls, a rotor having a surface formed by an ellipse or Cassini line, traverses attached to the pistons, rollers attached to the traverses and springly depressed against the rotor, oil tubes with end bushings, oil supply and withdraw means, two plungers disposed in each tube forming a second gap essentially less than the first. The plungers are attached to the traverses and oppositely movable, including through channels, outward surfaces with the bushings forming external spaces, and inward surfaces with the tube sidewalls forming an internal space communicating with the oil supply and withdraw means. Oil drain means communicate the external spaces with the oil supply means. The engine absorbs side and inertial forces, is more efficient and clean.

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: An engine is disclosed. In one implementation, the engine includes a camwheel mounted to an output shaft. Eighteen cylinder-enclosed pistons are positioned in a circular plane about the camwheel such that the radius of the circular plane and the camwheel are coplanar. Lobes integrally formed on the camwheel define a guiderail including a continuously, substantially sinusoidal surface biased for rotation in the direction of the rotary motion of the output shaft. Drive bearings associated with each piston engage and maintain contact with the guiderail. The rotary motion is obtained by transferring the displacement of the plurality of pistons from respective top dead center positions and bottom dead center positions to the guiderail, thereby rotating the camwheel and output shaft.

Abstract: Improvements of internal combustion engine brought in by this invention includes extracting four stroke engine cycle to two stroke cycle by construction of corresponsive partition, fuel inlet and emission outlet forming a pathway in combustion chamber allowing fresh fuel refilling and emission exhaustion processing simultaneously and between time for piston moving from downward turning to upward, improving operation of bifurcated legs by construction of corresponsive ditches and rims, introducing a power-dispersing unit consisting members of gears of axle, disperse, ratchet and swing to reduce powerful impacting force from combustion to acceptable on main axle evenly around, introducing a two fuel combustion process consuming two fuels instead of one taking advantage of economical, environmental and powerful second fuels by a consecutive spraying process.

Abstract: The invention relates to the structure of internal combustion engine without a connecting rod and a method of its construction. The proposed method of construction describes the consecutive steps in creating the engine and allows the creation of internal combustion engine without a connecting rod with six and more even number of arc-like units (6) whereat the heating of the opposite arc-like units (6) in the center O.sub.1 of the engine is removed. The complex mounting and dismounting of the engine shaft is eliminated too, because according to the invention the engine shaft is not articulated of several details, but it is whole, uncut. Besides, the possibility is obtained for a change of the revolutions of the engine shaft (11) without reductor in one and the same stroke frequency of the pistons (3) movement by changing only the number of working cylinders of the engine.

Abstract: An Internal Combustion Engine including a plurality of reciprocating pistons disposed about the periphery of a central housing, and a pair of drive cams responsive to the displacement of the pistons for driving one or more output drive shafts. A piston rod cross member engages cam raceways of a pair of drive cams. Each raceway comprises a plurality of lobes defining power and compression stroke surfaces. Axial displacement of the cross member within the raceway effects rotation of the drive cams and output drive shafts which are rotational coupled to each drive cam. The drive cams and output drive shafts may rotate in the same or opposite directions, delivering high torque at low rotational speeds and, in one embodiment providing a torque-balanced output. Furthermore, the drive cams may include peripheral teeth for driving a timing gear which is timed relative to the output drive shafts for driving auxiliary equipment.

Abstract: A mechanism comprising a piston-and-cylinder assembly including a piston housed in a cylinder is provided. The mechanism includes a pin member passing through the piston and a guide member having a guide recess accommodating an end of the pin member, the guide recess being so shaped and orientated in relation to the piston-and-cylinder assembly that a common axis exists between the guide recess and the piston-and-cylinder assembly. The guide member and the piston-and-cylinder assembly are mounted so as to be rotatable relative to each other about the common axis. The guide recess includes an inner periphery and an outer periphery, where the inner and outer peripheries include respective mid-portions where the periphery is narrowest lying between two end lobe portions, for guiding the pin member continuously in a path which includes two end lobe portions separated by a narrower mid-portion.

Abstract: This engine relies on a flywheel having a flywheel axis and an undulating cam surface. A piston wit a roller at its base is positioned in a cylinder such that the roller abuts the undulating cam surface at some radial distance from the flywheel axis. Thus, as the piston is pushed downward by combustion pressure in the cylinder, it pushes against the cam surface causing the flywheel to rotate. As the flywheel continues to rotate its undulating surface pushes the piston back into position for a repetition of the cycle. The cam surface can be configured to control engine parameters such as compression ratio, duration of intake stroke, duration of exhaust stroke, duration of combustion stroke, duration of power stroke, compression stroke pattern, volumetric efficiency, or power stroke pattern.

Abstract: A piston-cam engine includes a drive cylinder, a drive piston operably disposed therein having a piston head and a shaft, a support frame having a drive shaft rotatably movably connected thereto, a cam having a peripheral surface and having a plurality of lobes thereon, a roller member connected to the piston shaft and adapted for engagement with the peripheral surface of the cam, and a biasing element for biasing the roller member continuously against the peripheral surface of the cam. A support drive plate interconnects the piston shaft and the roller member and one or more slave cylinder(s) is provided adjacent the drive cylinder and has a slave piston operably disposed therein and has a piston head and a shaft, wherein the slave piston shaft is connected to the support drive plate to absorb part of a force exerted on the support plate during operation of the engine.

Abstract: An internal combustion engine (10) including at least two radial cylinders (17) disposed with their axes coplanar and equi-angular located relative to each other. The cylinders (17) meet to form a common combustion chamber (18). A piston (20) is located in each of the cylinders (17), each piston (20) cooperates with a cam profile (23) formed by the inner wall of a rotor (13). The cam profile (23) is rotationally symmetrical and includes the same number of lobes (26) as pistons (20) with each lobe (26) projecting radially inwards. The lobes are equi-angularly disposed about the inner wall of the rotor (13). In contrast to a conventional crankshaft driven engine, the cammed pistons (20) may move according to a non-sinusoidal time-velocity function. The lobes (26) may be modified in shape, for example, by filing or other reshaping, in order to customize the pattern of movement of the pistons (20) so as to alter the operating characteristics of the engine (10).

Abstract: A radial cam driven internal combustion engine has connecting rod guide pins that slide into ends of the connecting rods, allowing the connecting rods to slide freely linearly while applying side loads on the connecting rods to the crankcase. The stationary guide pins protrude out from a center ring that floats over the central drive shaft. These pins are grooved to allow the pressure inside the connecting rod to escape. Each piston dwells at top dead center long enough to create a fixed volume environment and for all the fuel in the cylinder to be consumed.

Abstract: A radial cam driven internal combustion engine has connecting rod guide pins that slide into ends of the connecting rods, allowing the connecting rods to slide freely linearly while applying side loads on the connecting rods to the crankcase. The stationary guide pins protrude out from a center ring that floats over the central drive shaft. These pins are grooved to allow the pressure inside the connecting rod to escape. Each piston dwells at top dead center long enough to create a fixed volume environment and for all the fuel in the cylinder to be consumed.

Abstract: A rotary engine includes a central rotor having a frustoconical shape with an ellipsoidal groove machined into the outer surface of the rotor. The rotor is rotated by the movement of a series of pistons mounted in cylinders surrounding the rotor. A series of piston rods connected to the pistons have piston followers that engage and follow the elliptical groove on the rotor. The rotor is mounted on a main drive shaft, and a cam assembly is additionally mounted above the rotor on the main drive shaft. Each cam in the cam assembly has a lobe, and is operable to control the intake of fuel and the exhaust of burned gases within the each cylinder according to the rotation of the main drive shaft. In this design, the piston follower encounters less friction and side forces due to the frustoconical shape of the rotor. Additionally, the pistons have a positive movement within each cylinder due to the angular placement of the cylinder in conjunction with the rotor.

Abstract: The drive arrangement for the two-cycle engine employs a multi-lobe cam and piston rods which are reciprocated in a rectilinear manner. A roller is mounted on each piston rod to contact and be driven by the multi-lobe drive cam off the drive shaft of the engine. Each lobe of the drive cam is of non-symmetrical shape so that ignition is timed to take place prior to the full extension of the piston rod into an associated combustion chamber.