Abstract: An internal combustion engine includes an engine block having one or more cylinders and a rotary disk valve mounted on top of the engine block. The rotary disk valve includes an intake passage for directing intake air into the cylinders and an exhaust passage for exhausting combustion gases from the cylinder. The center of the intake passage and exhaust passage are equidistant from the axis of rotation of the rotary valve. The intake passage and exhaust passage in the rotary valve communicate with each cylinder in succession as the valve rotates, allowing the use of a single valve to serve multiple cylinders. Both the intake passage and exhaust passage have a cross sectional area at its narrowest point equal to at least 40% of the cross sectional area of the cylinders.

Abstract: Carbon fiber reinforced carbon composite rotary, sleeve, and disc valves for internal combustion engines and the like are disclosed. The valves are formed from knitted or braided or warp-locked carbon fiber shapes. Also disclosed are valves fabricated from woven carbon fibers and from molded carbon matrix material. The valves of the present invention with their very low coefficient of thermal expansion and excellent thermal and self-lubrication properties, do not present the sealing and lubrication problems that have prevented rotary, sleeve, and disc valves from operating efficiently and reliably in the past. Also disclosed are a sealing tang to further improve sealing capabilities and anti-oxidation treatments.

Abstract: A modular rotary discoid valve assembly includes a housing for positioning on an engine of the piston and cylinder type. The housing includes an intake passage for conducting a working fluid to the cylinder and an exhaust passage for conducting the working fluid from the cylinder. The housing has an internal cavity which intercepts the intake and exhaust passages, which cavity contains a rotary valve member having a window whose size may vary with increasing distance from the disc axis and/or angular position on the member. The window is so positioned that when the member is rotated, it opens and closes the intake and exhaust passages in a periodic manner. The valve assembly also includes a throttle member mounted in the housing parallel to the rotary valve member. The throttle member has a hole which may be positioned opposite the intake passage.

Abstract: Within the cylinder head of an internal combustion engine, a rotatively mounted disc valve having beveled gear teeth upon the edge of its outer perimeter and a plurality of equally spaced ports about its center of rotation for cyclic indexing with a like number of sets of exhaust and intake conduits within the said cylinder head leading from the combustion chamber to respective exhaust and intake manifolding. The disc valve completes one whole revolution for every eight revolutions of the crankshaft of said internal combustion engines.

Abstract: A modular rotary discoid valve assembly includes a housing for positioning on an engine the piston and cylinder type. The housing includes an intake passage for conducting a working fluid to the cylinder and an exhaust passage for conducting the working fluid from the cylinder. The housing is formed with an internal cavity which intercepts the intake and exhaust passages, which cavity contains a rotary valve member having a window whose shape and/or angular positions on the disc varies with increasing distance from the disc axis. The window is so positioned that when the member is rotated to a first angular position, the window is located opposite the intake passage whereby the working fluid can flow along the intake passage through the window to the cylinder and when the member is rotated to a second angular position, the window is located opposite the exhaust passage so that the working fluid can flow from the cylinder through the window along the exhaust passage.

Abstract: A rotary valve engine includes an engine block having at least one combustion chamber which is sealed by a rotary valve which also can function as a head. The rotary valve includes an intake passage and an exhaust passage for directing intake air into the combustion chamber and for exhausting combustion gases from the combustion chamber as the valve rotates. In a preferred embodiment of the invention, a single rotary valve is associated with a plurality of combustion chambers for directing intake air into the combustion chambers and exhaust gases from the combustion chambers in succession as the valve rotates. Also, in a preferred embodiment of the invention, a spark plug and fuel injector are mounted on the rotary valve for injecting and igniting fuel in each combustion chamber.

Abstract: A time twister cylinder head includes two rotary valves driven by a timing belt coupled to the engine crankshaft by belts and pulleys to describe a desired rate of rotation of the valves with respect to rotation of the crankshaft. Each valve is generally cylindrical with side faces opening in opposite directions to permit coupling with the intake and exhaust manifolds. The common axis of rotation of the valves is slightly offset from the centerline of the air passages so that pressure buildup in the cylinder will be applied off-center on the valves to enhance rotation.

Abstract: A timeable fluid feed mechanism for feeding or injecting combustible vapors into an internal combustion engine, primarily compression ignition. The mechanism includes a rotating disk with a cavity that passes repeatedly and consecutively over a fuel inlet pipe, cylinder, piston crown, vent pipes, and then again over the fuel inlet pipe. Combustion occurs when fluid in the cavity is exposed to the cylinder and mixes with the other fluid in the cylinder. Timing is accomplished by the axially located driving shaft with angled splined gears meshing with angled splined gears in the disk. Axial movement of the shaft causes the disk and its fluid feed cavity to change position relative to the shaft, thereby changing timing. The features of a nonrotating axial motion input to the injector disk drive shaft, ease of operation, and a curved leading edge of the injector cavity improve combustion. Power input to the rotatable disk shaft is over a suitable length of the shaft to avoid moving the power input gears axially.

Abstract: A rotary valve engine includes an engine block having at least one combustion chamber which is sealed by a rotary valve which also can function as a head. The rotary valve includes an intake passage and an exhaust passage for directing intake air into the combustion chamber and for exhausting combustion gases from the combustion chamber as the valve rotates. In a preferred embodiment of the invention, a single rotary valve is associated with a plurality of combustion chambers for directing intake air into the combustion chambers and exhaust gases from the combustion chambers in succession as the valve rotates. Also, in a preferred embodiment of the invention, a spark plug and fuel injector are mounted on the rotary valve for injecting and igniting fuel in each combustion chamber.

Abstract: A valve system for fluid processing machines which provides fully dynamic control over aspiration events. In the case of an internal combustion engine application, the variable orbital aperture valve system includes a rotary valve in the form of an "orbiter" disc having primary intake and exhaust apertures provided therein for sealing with the head of the combustion chamber and periodically aligning with intake and exhaust ports therein to thereby periodically aspirate the combustion chamber. The orbiter is connected by a linkage to the crank shaft of the internal combustion engine, and turns at typically one-half the crank shaft speed. The variable orbital aperture valve system further includes at least one "floater" disc having a secondary aperture therein which, depending upon the selected placement of the secondary aperture with respect to the respective intake or exhaust port, the aforesaid alignment with the primary intake or exhaust aperture of the orbiter is thereby modified.

Abstract: An improved rotary valve for a spherical rotary valve engine in which the intake spherical valve and the exhaust spherical valve have an aperture on the spherical periphery for communication with the inlet port and exhaust port of the cylinder, respectively, the aperture having longitudinal parallel edges spaced apart a distance equivalent to the diameter of the inlet port or the exhaust port of the cylinder head, the lateral ends of the aperture on the spherical periphery of the intake and exhaust valve being curvalinear and of a semi-circular design, the semi-circular design conforming to the circumference of the inlet port and outlet port of the engine cylinder so as to provide for faster opening and faster closing of the intake port and exhaust port, respectively, and also providing a larger cross-sectional area more quickly in the opening phase and a reduction in the cross-sectional are a more quickly in the closing phase of the valve.

Abstract: An internal combustion engine having a head with valve assemblies for controlling intake and exhaust gases to and from piston chambers. A head plate is located between the head and a block having cylinders accommodating pistons. The head plate has openings in communication with the cylinders and valve assemblies. Each valve assembly has a continuous ceramic sleeve having an intake port, and an exhaust port. Rotatably disposed within the sleeve is a rotatable valve body having a valving combustion chamber open to a piston chamber. A spark plug is mounted on each valve body. A ceramic segment seal mounted on the valving body has sealing surfaces engageable with the sleeve. A face seal is located between the head plate and the rotating valve body. The valving body and seal are rotatably driven to sequentially align the valving combustion chamber with the intake port and exhaust port during the operation of the engine.

Abstract: An internal combustion engine of the piston and cylinder type is provided. The conventional cylinder head is replaced by a detachable head assembled from two hollowed out cylinder head components one of which (3a) is shown. The components when assembled provide a cavity (4) which is contoured so as to accommodate in gas-tight sealing with the walls thereof a rotor (5) having a pair of drums (7, 8) thereon, each drum (7, 8) has a rotor passage (7a, 8a) thereon so that when the rotor (5) is rotated (in a conventional manner), the rotor passages (7a, 8a) provide an uninterrupted conduit between the carburetor and the cylinder or the cylinder and the exhaust manifold during the induction stroke and the exhaust stroke respectively of the piston of one cylinder of the engine. Four pairs of drums are provided on the same rotor for use in a four cylinder, four stroke engine.

Abstract: A spherical rotary valve assembly for an internal combustion engine of the piston and cylinder type wherein the spherical rotary valve assembly is positioned within a split cylinder head having an upper and lower section, such when secured defines a cavity for a rotational shaft having mounted thereon, an intake drum and exhaust drum for each cylinder, the lower half of the split head cylinder head having positioned therein, the inlet port and outlet port for the cylinder, the split cylinder head having an intake passageway and an exhaust passageway in communication with the drum cavities in the split cylinder head, the rotation of the respective intake drum and exhaust drum within their respective cavities interrupting the respective flow of the fuel air mixture or the exhaust gases to or from the cylinder by means of passageways within the drums, the drums rotating within the cavities in a gas tight sealing rotation on an annular sealing means axially positioned about the inlet port and outlet port in the l

Abstract: An internal combustion engine having a cylindrical rotary valve body positioned over each piston cylinder, and having a flow-passage chamber extending from the bottom of the valve body exposed to the piston chamber, and curved upward opening to the side of the valve body. The apparatus comprises a vertically rotating valve body positioned within a valve liner insert, and whose side aperture is disposed to make communication with the spark-plug cavity, the exhaust port, and the intake port, exposing the curved flow-passage to each function with fixed timing provided by the positions of the port apertures in the valve liner insert. Sealing is affected by compression rings and an aperture ring. Rotation of the valve body is provided by gear or chain linkage, and timed to the crankshaft.

Abstract: The invention relates to a valve-controlled system, particularly for use in an internal combustion engine, comprising a valve stem and a valve disc extending at an oblique angle to the axis of the valve stem. The valve disc is adapted to be lifted from an associated valve seat and is non-circular and preferably elliptical. By means of a turning drive the valve is adpated to be rotated to open and close chambers or passages which open into the valve seat.

Abstract: A high performance two-stroke internal combustion engine comprises at least one disc inlet valve driven from a shaft via bevel gears. The shaft is driven from a pinion secured to the engine crank-shaft via a variable drive. The variable drive includes a spring which biases a cross pin to one end of a spiral slot in the shaft to maintain pinion at a position relative to the shaft which provides maximum inlet valve advance during starting. As engine revs increase the pinion progressively leads the shaft thereby retarding inlet valve timing. When the valve timing is fully retarded a bobbin of the drive is latched by a magnet to hold the valve timing fully retarded until engine revs fall.

Abstract: A four stroke internal combustion engine comprising a cylinder block in which is formed a cylinder bore, a piston arranged for reciprocation within the cylinder bore, a cylinder head mounted on the cylinder block and having a conical valve seat embodying inlet and exhaust ports, a conical valve complementary with the valve seat and embodying port hole means via which the inlet or exhaust ports are arranged to communicate with the cylinder bore consequent upon predetermined rotary movement of the valve, and valve rotating means operative to produce at appropriate times during the engine cycle, predetermined rotary movement of the valve in one direction so as to place the inlet port in communication with the cylinder bore via the port hole means or predetermined rotary movement of the valve in the opposite direction so as to place the exhaust port in communication with the cylinder bore via the port hole means.

Abstract: A rotary valve for internal combustion engines, compressors and the like wherein its valve plate engages directly with the cylinder block and which is lubricated by oil passageways in the valve plate or wear surface of the cylinder block.

Abstract: A rotary valve system for use in internal combustion engines comprises an elongated substantially cylindrical valve passage means having a threaded section at one end and an outwardly extending disc portion at the other end. The outwardly extending lower portion includes a valve disc aperture for alternate communication with inlet and outlet passages in the valve disc jacket for predetermined time periods. The bottom of the disc portion comprises the upper surface of the combustion chamber and can include a shaped protrusion for purposes of charge stratification. Rotation means support the valve disc arrangement for rotation within the cylinder head or valve disc jacket about the longitudinal axis of the assembly. The inner recess of the valve disc jacket which contacts the outwardly extending valve disc is provided with a mating carbon, graphite or molybdenum impregnated sleeve insert.

Abstract: An internal combustion engine is provided that has a stationary cylinder block in which cylinders contain reciprocating pistons that are sequentially actuated to impart torque to a revolving rotor. A unique rotor is provided that includes a cam surface that controls the reciprocation of the pistons through followers. Ports in the rotor conduct working fluids to and from the cylinders. An exhaust blow-down nozzle is provided in the rotor that transforms kinetic energy in the exhaust into additional torque. There is no residual gas fraction present during combustion and the engine operates with true constant volume combustion.

Abstract: A method of operating an internal combustion engine having one or a plurality of cylinders with piston means movable therein wherein a controlled quantity of compressed air is introduced into the combustion chamber when the piston is substantially in its bottom dead center position and about to begin a compression stroke or an exhaust stroke or only before the beginning of an exhaust stroke. The quantity of compressed air supplied is varied in dependence upon the load or output power of the engine. At lower engine speeds or lower output power a greater quantity of compressed air is introduced before each compression stroke. At higher engine speeds or higher output power a smaller quantity of compressed air is supplied prior to each compression stroke and each exhaust stroke. The scavenging and/or supercharging air is supplied at a pressure from about 7 to 43 psig, and at a temperature below 1470.degree. F., or lower.