Fluid machine

A fluid machine according to an embodiment includes a sealing portion which is formed of an annular minute gap formed between a runner band of a runner configuring a 5 rotating portion and a sealing liner which is a stationary portion and arranged in opposition to the runner band. A groove having a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KAWAJIRI, HIDEYUKI, NAKAGAWA, NARITOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER STEAM ENGINES WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	A fluid machine according to an embodiment includes a sealing portion which is formed of an annular minute gap formed between a runner band of a runner configuring a 5 rotating portion and a sealing liner which is a stationary portion and arranged in opposition to the runner band. A groove having a quadrangular cross-sectional shape is formed circumferentially on a surface of the sealing liner configuring the sealing portion. In a cross section 10 perpendicular to a groove forming direction of the groove, an angle 0, which is formed between a side WU of the groove on the most upstream side with respect to the flowing direction of the leakage flow, and a side WO of the groove which is on an extended line of the surface of the sealing 15 liner, is determined to be 150 or more and 40* or less. 4933319_1 (GHMatters) P87783.AU i"