COMPRESSION RING

A compression ring to be used in a spark-ignition engine using hydrogen gas fuel and to be fitted to a piston ring groove of a piston installed in a cylinder, wherein T ≤ 10 is satisfied, when an abrasion resistance test is performed with a reciprocating friction tester in a predetermined condition...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	AOKI, Takashi, YONEYAMA, Osamu, KAWAI, Kiyoyuki, NAGAKURA, Hiroyuki, OOURA, Shinsuke
Format:	Patent
Sprache:	eng ; fre ; ger
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 compression ring to be used in a spark-ignition engine using hydrogen gas fuel and to be fitted to a piston ring groove of a piston installed in a cylinder, wherein T ≤ 10 is satisfied, when an abrasion resistance test is performed with a reciprocating friction tester in a predetermined condition in order to evaluate an outer peripheral sliding surface of the compression ring, TW1 (µm) is defined as an amount of abrasion of the outer peripheral sliding surface in the test with dropping of 1 mL/hour of a bearing oil and 0.5 mL/hour of distilled water, TO1 (µm) is defined as an amount of abrasion of the outer peripheral sliding surface in the test with dropping of only 1 mL/hour of the bearing oil, and T (µm) = TW1 - TO1 is defined.