Abstract: A crankcase emission control device of an internal combustion engine comprises a gas/liquid separator that separates an oil mist from blow-by gases flowing therethrough. A first passage is defined in both a crankcase and a cylinder head to connect an interior of the crankcase to a valve rocker cover chamber defined by the cylinder head. A second passage extends from the valve rocker cover chamber to the gas/liquid separator. A third passage extends from the gas/liquid separator to an intake system of the engine. For reducing the height of the entire construction of the engine, the gas/liquid separator is integrally formed by the cylinder head at a position below intake ports of the cylinder head.

Abstract: A cylinder head assembly having a cylinder head and an adapter. The intake cavity of the cylinder head is relatively large, and the adapter fills a portion of the space in the cavity. The cylinder head has an intake runner that decreases in cross-sectional area as it progresses inward from the entrance to the intake port. The adapter has a runner filler that decreases in cross-sectional area as it extends away from a spacer, and is inserted into the intake runner. The volume of the runner filler is smaller than the volume of the intake runner, so a cavity is left within the intake runner. This cavity forms a portion of the intake passageway that leads from the carburetor to the cylinder. The position of the intake position may be altered to accommodate clearance problems with devices in which an engine is incorporated.

Abstract: A light metal piston for internal combustion engines which includes a bearing bushing comprising a shell wrapped from a rolled strip or band shaped metal material. The shell has a butt joint which is closed in a pressed-in state, with a preferred orientation of the metallurgical grain areas being formed in the circumferential direction of the shell.

Abstract: A fuel conditioning assembly, structured to be positioned between a fuel supply and a fuel combustion assembly, and including an elongate tubular housing having an inlet end, an outlet end, and a flow through passage extending therebetween. The inlet end is coupled with the fuel supply so as to receive fuel flow therethrough into the flow through passage, wherein a turbulent flow of the fuel is initiated and the fuel is influenced by a combination of metallic elements such as copper, aluminum, stainless steel, titanium, magnesium, barium, calcium and/or iron, which chemically condition the fuel flowing through the flow through passage by rearranging the molecular bonds of the fuel with a catalytic effect and separating the fuel particles into a plurality of subatomic particles, thereby reducing a density of the fuel and substantially increasing a fuel burn efficiency.

Abstract: The present invention provides a cast piston for an internal combustion engine comprising a crown region subjected to relatively higher service temperature than other regions of the piston. The crown region has a microstructure including an alloy matrix with reinforcing material and strengthening precipitates providing strength properties suited to the higher crown service temperature by virtue of the precipitates having better resistance to averaging as compared to different strengthening precipitates formed in a microstructure of other regions of the piston subjected to lower service temperatures. The different precipitates at the other regions of the piston provide strength properties suited to relatively lower temperatures at those regions.

Abstract: A cylinder liner for an internal-combustion engine includes a tubular liner wall having circumferentially spaced thickened wall portions.

Abstract: An apparatus for the treatment of gases in a positive crankcase ventilation (PCV) system, in an internal combustion engine, is provided with a housing defining a gas treatment chamber. At least one gas filtering medium is disposed in the chamber, and the gases from the engine crankcase are passed through the gas filtering medium in the chamber, before the gases are routed into the air intake portion of the engine. In addition, the gases, after passage through the gas filtering medium, are passed through an ionization device.