Piston Assembly with Gapless Oil Control Ring

A piston is provided with a gapless ring positioned in a subport position. Specifically, the gapless ring is positioned between the air ports and the crankcase of the engine. The gapless ring includes a rail and an annular ring received within the rail. The ring includes a ring gap and the rail incl...

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Bibliographische Detailangaben
Hauptverfasser:	Hegge, Graydon Robert, Foege, Aaron Gamache, Graczyk, Frank Matthew
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	A piston is provided with a gapless ring positioned in a subport position. Specifically, the gapless ring is positioned between the air ports and the crankcase of the engine. The gapless ring includes a rail and an annular ring received within the rail. The ring includes a ring gap and the rail includes a rail gap. When the rail receives the annular ring, the ring gap and rail gap are spaced apart in a circumferential direction such that the gaps do not overlap. In certain embodiments, the rail includes a notch. When the annular ring is received within the notch, the annular ring and rail are biased against rotating with respect to each other. In certain other embodiments, the gapless ring includes an oil scraping surface.