Abnormal combustion protection in an engine and piston configuration for same

An engine (12) includes a cylinder liner (34) and a piston (40) movable within the cylinder liner (34), a crevice (68) formed between a top land (64) of the piston (40,) and the cylinder liner (34), and an oil entry clearance (70) formed between a top ring of the piston (40) and the cylinder liner (...

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Bibliographische Detailangaben
Hauptverfasser:	Jaswinder Singh, Kenth I. Svensson
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING COMBUSTION ENGINES CRANKCASE VENTILATING CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES ENGINE PLANTS IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING LUBRICATING INTERNAL COMBUSTION ENGINES LUBRICATING OF MACHINES OR ENGINES IN GENERAL MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	An engine (12) includes a cylinder liner (34) and a piston (40) movable within the cylinder liner (34), a crevice (68) formed between a top land (64) of the piston (40,) and the cylinder liner (34), and an oil entry clearance (70) formed between a top ring of the piston (40) and the cylinder liner (34). The engine (12) also includes an abnormal combustion inhibitor (72) having an oil recapture surface (74) exposed to the crevice (68) and oriented to limit migration of oil (75) from the crevice (68) toward a combustion chamber (36) in the engine (12). The abnormal combustion inhibitor (72) includes a groove structure (95) having as a substrate at least one of the cylinder liner (34) or the piston (40). Related methodology is also disclosed.