Abstract: The inventon is an improvement of the air induction circuit for internal combustion reciprocating piston engines which employ regenerative heating for the volatilization of fuels and their admixtures in an injection cup heated by the exhaust stream, and in particular to those types of engine systems which employ exhaust gas ejectors in their intake and exhaust manifolding.An auxiliary conduit serving as an air balancing circuit is placed in communication with an air plenum which is also in communication with the ejector air charge circuit. The primary object of this improvement is in its facilitation of the control and stabilization of a uniform mixture ratio of air/fuel charge to the engine.The flow circuit of the auxiliary conduit is controlled by a cam operated poppet valve in synergistic operation with the engines crankshaft and electronically senses and compensates for the displacement of intake air by high volatilization of fuel in the injection cup positioned within the exhaust gas ejector nozzle.

Abstract: A fuel injection system includes a hydraulically-actuated electronically-controlled fuel injector having a needle valve member and an injector body that defines a fuel pressurization chamber that opens to a nozzle outlet. The needle valve member is positioned in the injector body and is moveable between an inject position at which the nozzle outlet is open, and a blocked position at which the nozzle outlet is blocked. A portion of the injector body adjacent the nozzle outlet is a mono gas valve member. The movement of the gas valve member controls one or both of the intake and exhaust portions of the engine cycle. The gas valve member is also hydraulically-actuated and electronically-controlled by the same hydraulic actuator that operates the fuel injector.

Abstract: A cylinder head for a four-stroke combustion engine includes at least one inlet conduit having a valve and/or slide valve and at least one exhaust conduit situated in the cylinder head. The inlet conduit and the exhaust conduit connect into a single main conduit. The main conduit has an orifice having the shape of an annulus, the axis of which is aligned with the main axis of the cylinder. The orifice of the main conduit is provided with an interior valve seat and an exterior valve seat, on which, in the closed position, is seated a ring-shaped plate of the sole lifting valve. The lifting valve has at least one stem. The exhaust conduit of the cylinder head is directly interconnected to the exhaust branch and includes no valve gear and/or slide valve gear. The size of the orifice flow cross-section area corresponds to the sum of flow cross-sectional areas around and inside the annular plate. A space is provided in an interior area adjacent to the valve seat for a spark plug and/or an injection nozzle.

Abstract: A cylinder head with single colander valve per cylinder for internal combustion engines (IC engine) and the like is provided. The single colander valve per cylinder has significantly enlarged valve open area and remains fully open at the end of the exhaust stroke and at the beginning of the intake stroke. The volumetric efficiency of IC engines, therefore, is significantly improved. The cylinder head with single colander valve per cylinder and support members of the present invention is practical because of the following features: single colander valve per cylinder has light weight and operates under low temperature. Some of advantages associated with these features are the following: (a) single colander valve has greater durability, (b) the compression ratio of IC engines may be raised, (c) dynamic effects on the valve train are reduced, (d) the speed of IC engines is increased, (e) the polluting emission is reduced, and (f) the fuel economy is improved.

Abstract: A rotary distribution and air cooling valve for combustion and exhaust gases for an internal combustion engine consisting of a tube mounted in a bore within the engine head having a pair of opposed side ports and an internal barrier which acts as an air fan to both cool the valve site and channel the gases in and out of the engine in timed sequence. A plurality of grooves are disposed on the surface of the tube to provide a labyrinth fluid seal.

Abstract: A fluid system of an engine which has an outwardly opening engine valve controls fluid delivery and removal from first and second cylinders for controlling the position of the engine valve and injection of fuel responsive to the position of the engine piston.

Abstract: An internal combustion engine having intake and exhaust manifolds and a cylinder defining a combustion chamber in which a piston reciprocates and having a wall formed with a port has a combined poppet/slide valve. This valve has a lift valve having a head sealingly engageable in the port and movable in a predetermined direction between a raised position permitting flow past the head through the port and a closed position blocking flow through the port and a stem extending from the head in the direction and having an outer tappet end. It also has a sleeve centered on and rotatable about an axis generally perpendicular to the direction and formed with a radially contoured cam radially engaging the tappet end of the stem so that rotation of the sleeve about its axis displaces the valve between its positions. The sleeve is formed with a pair of axially offset and radially throughgoing apertures.

Abstract: The invention relates to new and useful improvements in those types of internal combustion engines which employ a single poppet valve to alternately control both the intake and exhaust flows through the same valve port. The exhaust and intake air interact within a common manifold wherein mixing is prevented by means of pneumatic elements comprising a nozzle and diffuser combination which direct the flow. The invention improves the separation of intake air and exhaust gases within the manifold of engines of this character by curving the flow axis of the diffuser such that its exit plane is more or less aligned with the logitudinal flow axis of the exhaust pipe. A means of throttling the engine by proportionally distributing the intake air within the said manifold between the airchest and exhaust gas circuits in a manner relative to the engine speed is a further improvement.

Abstract: A cylinder head for an internal combustion engine of either a two-cycle operation or a four-cycle operation is disclosed. The cylinder head includes an intake port, an exhaust port, a dual-function chamber, a poppet valve positioned within the dual-function chamber, and a flapper valve also positioned within the dual-function chamber, capable of sealing the intake port from the dual-function chamber, capable of sealing the exhaust port from the dual-function chamber. If the cylinder head is for a two-cycle engine, an injector may be positioned within the cylinder head so that fuel is injected either within the dual-function chamber, or directly injected within the combustion chamber. A process of operating the cylinder head in conjunction with an internal combustion engine is also disclosed.

Abstract: The invention presents new and useful improvements in the mechanical design of control elements used in the sequencing of the exhaust and intake process cycles of the 4-stroke reciprocating piston engine. The exhaust and induction circuits pass through the same valve port and their flows are alternately controlled by the same poppet valve. The camshaft exhaust and intake lobes are combined into a single broad double-cycle lobe such that the poppet valve remains fully open at the end of the exhaust stroke permitting the intake stroke to begin with the poppet valve in the same fully open position without the attendant problem of exhaust gas dilution of the air charge entering the engine, as most generally associated with valve overlap in the conventional sequencing method using two poppet valves.The simplification of having only one poppet valve, one valve port, and one cam lobe per each engine cylinder reduces the engine manufacturing cost.

Abstract: A valve mechanism for a reciprocating piston internal combustion engine having one large poppet valve per cylinder communicating with both inlet and exhaust tracts. A partition between the inlet and exhaust tracts has gas flow ports therethrough moving into and out of alignment with similar gas flow ports in the valve stem. The ports are arranged to permit gas flow from the inlet tract to the outlet tract when the valve is closed.

Abstract: An extended circumference intake poppet valve system for use with a single charge carrying intake duct/port to an engine cylinder in a four cycle internal combustion engine to include three or more annular intake poppet valves (secondary valves), annular valve seats (mini ports), disposed within a primary valve head which spans said single duct/port (valve system), said valve system in fluid communication with said duct and said cylinder for opening and sealing said duct/port at said duct seat, intake valve lifting and closing means, wherein the area of the duct/port, and the matched area of the open valves are substantially equal for an extended optimum charge flow period, and in addition, valve open areas at all valve lift points during the inlet event that occur, initially and throughout extended duration through closure, are enlarged when compared with a single poppet valve servicing the same duct/port, resulting in greatly enhanced charge volume into the cylinder during the intake event.

Abstract: A fluid control apparatus and method for a positive displacement engine or compressor which has a treatment chamber that communicates with a fluid admission duct and an exhaust duct via a port, and contains a piston within the treatment chamber which reciprocates between a top dead center and a bottom dead center position. The piston carries a poppet valve sealing member which is activated to provide substantially perfect sealing between the port and the treatment chamber when the piston is in the immediate vicinity of top dead center position, and is deactivated when the piston is in a position other than the immediate vicinity of the top dead center position in order to allow fluid to pass freely through the port.

Abstract: A portable power tool comprising a housing defining a combustion chamber and a cylindrical chamber having a reciprocating piston therein. The combustion chamber has an opening defined by a valve seat closable by a poppet valve and serving as an inlet at one side for unburnt gases or vaporized fuel admitted under pressure and an outlet at an opposite side for spent gases. An ignition assembly is provided for igniting unburnt fuel in the combustion chamber which is synchronized with the closure of the poppet valve. The combustion chamber and the poppet valve are shaped and arranged such that unburnt fuel admitted through one side of the valve seat opening will sweep the spent fuel of a preceding ignition cycle from the combustion chamber out through the other side of the valve seat opening.

Abstract: The present invention provides an internal combustion engine comprising a combustion chamber, a piston mounted within the combustion chamber and arranged to be sealingly engaged with walls of the combustion chamber, the piston being arranged for reciprocating motion between a first position in which combustion chamber is of maximum volume and a second position in which the combustion chamber is of minimum volume, wherein the combustion chamber further comprises an inlet-outlet control valve means in a region of the combustion chamber within the minimum volume defined by the piston in its second position, a fluid fuel injection means in a region of the combustion chamber within the minimum volume defined by the piston in its second position, a combustible mixture ignition means located in the region of the combustion chamber within the minimum volume defined by the piston in its second position, and the engine comprises an antechamber comprising an inlet means and spent combustible mixture outlet means, which

Abstract: Each cylinder of a supercharged four-stroke internal combustion engine is provided with a multi-purpose duct which passes from the compressed air manifold to the exhaust manifold and has a short branch within the cylinder head structure leading directly downward to connect with the cylinder where a single valve is provided to admit intake air and pass out exhaust gas. The multi-purpose duct curves around in a part of a spiral above the cylinder near the branching place and enters laterally in the portion of the duct that leads off to the exhaust manifold, so that a relatively high resistance to flow keeps the pressure in the compressed air duct from being unduly diminished while flow of air bypassing the cylinder between the compressed air and the exhaust ducts serves to increase the amount of working gas in the supercharger. The duct is shaped so as to keep very low the resistance to the flow of air into the cylinder and the flow of exhaust gas out of the cylinder.

Abstract: An internal combustion engine having an annular port and valve arranged to direct flow from dual inner and outer portions of the port in cylinder flow patterns having radially oppositely directed flow components. Various embodiments providing cylinder charge stratification or dual inlet and exhaust valve functions are disclosed.

Abstract: Improvements in a fuel injected, internal combustion engine having a first passage for flow of air into the combustion chamber and exit of exhaust gases from the combustion chamber and a single poppet valve opened and closed in timed relation to rotation of the engine's crank shaft to control flow of gases through such first passage, an inlet air passage and an exhaust gas passage each communicating with the first passage and one another and a diverter valve movable in timed relation to operation of the poppet valve selectively to direct, in one position, air into the combustion chamber through the inlet passage and, in another position, exit of exhaust gases through the outlet passage wherein the improvement comprises a separate small passageway in parallel flow relation with the intake air into the combustion chamber which directs supercharged air into the combustion chamber when the diverter valve is in the exhaust position to purge the engine.

Abstract: Improvements in a fuel injected, internal combustion engine having a first passage for flow of air into the combustion chamber and exit of exhaust gases from the combustion chamber and a single poppet valve opened and closed in timed relation to rotation of the engine's crank shaft to control flow of gases through such first passage wherein the improvement comprises an inlet air passage and an exhaust gas passage each communicating with the first passage and one another and a diverter valve moveable in timed relation to operation of the poppet valve selectively to direct, in one position, air into the combustion chamber through the inlet passage and, in another position, exit of exhaust gases through the outlet passage and another position therebetween where air flowing in the inlet passage flows directly to the outlet passage following the exhaust portion of the cycle to assist in driving out the exhaust gases.

Abstract: A rotary valve assembly will be utilized on internal combustion engines for regulating air-fuel mixture from a carburetor or other fuel injection system entering the cylinders of either two stroke or four stroke spark ignition engines serving to improve the part-load fuel efficiency of such engines by minimizing the pumping losses. This increase in efficiency is accomplished by substituting what is termed "time-duration-modulation" control for the present day "throttled" or "resistive" intake control now used to regulate engine power output. The rotary valve structure employs a hollow, or open sleeve, or tubular multi-port structure comprising the rotary valve, with an outlet for each cylinder, operating at fifteen (15) p.s.i. maximum differential pressure and relatively low temperatures, connected in series with presently used poppet or port type intake valves. Rotary valve timing or phase control is accomplished with a multi-pulley belt drive system.

Abstract: The invention relates to a distribution system for the intake and exhaust in an internal combustion engine.According to the invention, a cylinder is connected to an exhaust manifold by means of a connecting valve 10. An intake mainfold 10 opens into the manifold 14 by means of an intake valve 14 making it possible to regulate the flow of air and re-cycling of the burnt gases.The advantages attained by the invention include: achieving optimum characteristics of the flow of air and re-cycling of the burnt gases, obtaining optimum characteristics of the flow, reduction in temperature of the exhaust valve and assisting in starting and partial running.

Abstract: A rotary valve system for a motor and the like includes a flow conduit and rotary valve means interposed in the flow conduit. Intermittent sealing means are provided for preventing flow through the flow conduit, comprising a sealing surface intermittently positionable in stationary, sealing relationship across the conduit. Means are also provided for moving the sealing surface into such stationary sealing relationship with the flow conduit, and out of sealing relationship with the flow conduit in a manner correlating with the operation of the rotary valve means, to facilitate sealing as the valve operates.

Abstract: This specification discloses an automobile starter motor having a lever pivotally coupled to the housing of the starter and movably supporting a pole piece so that energizing the starter causes the pole piece to move toward the housing and to align to seat against the housing. The connection between the lever and the pole piece is a ball joint connection which permits relative movement between the pole piece and the lever so that there is maximum engagement between the housing and the pole piece which increases the starter holding force by reducing flux path reluctance and equalizing flux distribution through the extremities of the pole piece, and simplifies manufacturing, by reducing solenoid power and thus coil windings required and by eliminating a rigid connection between the pole piece and lever.

Abstract: A rotary valve system for a motor and the like includes a flow conduit and rotary valve means interposed in the flow conduit. Intermittent sealing means are provided for preventing flow through the flow conduit, comprising a sealing surface intermittently positionable in stationary, sealing relationship across the conduit. Means are also provided for moving the sealing surface into such stationary sealing relationship with the flow conduit, and out of sealing relationship with the flow conduit in a manner correlating with the operation of the rotary valve means, to facilitate sealing as the valve operates.

Abstract: A rotary valve system for a motor and the like includes a flow conduit and rotary valve means interposed in the flow conduit. Intermittent sealing means are provided for preventing flow through the flow conduit, comprising a sealing surface intermittently positionable in stationary, sealing relationship across the conduit. Means are also provided for moving the sealing surface into such stationary sealing relationship with the flow conduit, and out of sealing relationship with the flow conduit in a manner correlating with the operation of the rotary valve means, to facilitate sealing as the valve operates.

Abstract: An internal combustion engine of the four cycle reciprocating piston type wherein intake and exhaust of working fluid and combustible fuel into the engine cylinder is controlled by poppet valve means, while induction air is diverted by rotary valve means between intake and exhaust, said valve means being operated in timed relation with respect to each other at half crank shaft speed of rotation, utilizing blower induction of air as the working fluid which is diverted between intake and exhaust, and advantageously employing fuel injection through a valve plenum that is ported and through which the working fluid is controlled by the cooperatively timed rotary and poppet valve means.