PISTON WITH PISTON RINGS

A piston includes a first pressure ring (10) fitted in a first ring groove of the piston; and a second pressure ring (12) fitted in a second ring groove of the piston, and positioned between the first pressure ring (10) and an oil ring. The second pressure ring (12) is provided with a groove (20) th...

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Bibliographische Detailangaben
Hauptverfasser:	MORITA, Yusuke, SUZUKI, Takashi, KOYAMA, Takashi, YAGUCHI, Hiroshi, OHKI, Hisashi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CYLINDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PISTONS SEALINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A piston includes a first pressure ring (10) fitted in a first ring groove of the piston; and a second pressure ring (12) fitted in a second ring groove of the piston, and positioned between the first pressure ring (10) and an oil ring. The second pressure ring (12) is provided with a groove (20) that extends across a surface of the second pressure ring (12) from an inner peripheral side to an outer peripheral side. The groove is configured such that at least one of a width and a depth of the groove becomes larger toward the outer peripheral side from the inner peripheral side.