Wiper seal system and method

Embodiments of the present disclosure describe a piston cylinder arrangement including an inner barrel (18) positioned within an outer barrel (12), being linearly moveable along an axis (56). A primary sealing assembly (28) at an upper end (40) of the outer barrel includes a plurality of seals (74)...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Daniel Louis Havelka, Rockford Dee Lyle, Jesse B Riha, Robert James Wagner
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	Embodiments of the present disclosure describe a piston cylinder arrangement including an inner barrel (18) positioned within an outer barrel (12), being linearly moveable along an axis (56). A primary sealing assembly (28) at an upper end (40) of the outer barrel includes a plurality of seals (74) positioned to block debris from entering an interior chamber (24). Additionally, an end cap (40) is coupled to the inner barrel (18) and an end cap diameter is greater than an inner barrel outer diameter. Moreover a secondary sealing assembly (90) is arranged between the end cap (40) and the primary sealing assembly (28) and includes a plurality of secondary seals (74) positioned to block debris from entering the interior chamber (24) of the riser tensioner (10), wherein the secondary sealing assembly (90) reduces a stroke length of the inner barrel (18) when installed above the primary sealing assembly (28).