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:
An intake and exhaust valve system deployed in an internal combustion engine that improves available charge flow through the engine, provides improved charge turbulence and swirl of charge during each intake stroke for better mixture, provides for multiple independent fuel mixing at the cylinder, allows the use of concentric intake and exhaust valves also providing for balanced charge entry exit symmetry. The intake and exhaust valve system includes using a plurality of three or more concentric valve assemblies per cylinder, each intake valve being mounted within a hollow exhaust valve, the multiple intake and exhaust valves providing optimum flow area entering and exiting the cylinder. Three or more charge passage openings per cylinder strategically disposed enhances the uniform distribution of charge per unit time. Utilization of the present invention greatly increases the fuel efficiency of the engine, reduces emission pollution without sacrificing engine horsepower.
Abstract:
A four-stroke piston engine in which air is drawn into a cylinder while rotary motion about the cylinder axis is imparted to the air. Fuel may be blown/injected into the air during its rotation in the cylinder while the fuel supply is located on the axis of the cylinder and supplies at least one jet of fuel initially directed radially outwardly and which jet of fuel in cooperation with the rotating air forms at least one helical stream of mixture within the cylinder, preferably during the compression stroke, which is transformed into a coherent mixture zone enclosed by a ring of air upon completion of compression. The piston may have a recess so that when the piston approaches top dead center an enriched zone is formed in the lower region of the compression space which can be ignited by electrodes disposed in said lower region of the compression space. The stratified charge in the cylinder of the stratified-charge engine comprises a mixture zone of comparatively small volume and a mixture zone of comparatively large volume which may have different fuel concentrations plus a thermally insulating zone of air.
Abstract:
A combustion engine has a combustion chamber separated from the compression and expansion chamber(s). Passages are provided between the combustion chamber and the compression chamber(s) and the combustion chamber and the expansion chamber(s) with respective valves in the passages and inlet and exhaust valves provided in the combustion and expansion chamber. The combustion chamber maintains the combustion after passing fuel into the compressed air received from the compression chamber. The valves and piston heads are formed to prevent dead space in the cylinders in order to obtain a good efficiency by full discharge of the compressed air into the combustion chamber. Fuel cleaning means like, for example, a rotary separator and pure gas collecter are provided in the combustion chamber to separate unclean fuel particles, as, for example, ash or sand in coal, from the burned gases and collect the unclean particles in separated collection spaces. The engine can thereby burn unclean fuels, as for example coal powder or coal sludge and the like. The valves can be timed for different styles of combustion cycles if so desired. The engine may use conventional four stroke or two stroke engine arrangements and provide them with combustion chambers, pistons and cylinder heads of the invention to modify them from gasoline combustion to coal combustion or other cheaper and more avialable fuels for the combustion in the compressed air.
Abstract:
An internal combustion engine comprising a first exhaust valve arranged in an exhaust port in the exhaust system of said internal combustion engine, and a second exhaust valve arranged in the exhaust port downstream from said first exhaust valve, the timing of the opening of the first exhaust valve being earlier than that of the second exhaust valve, whereby the two valves temporarily form a secondary combustion chamber therebetween.