ROTOR BLADE OF AXIAL-FLOW MACHINES

The known rotor blade of axial-flow machines is improved. The improvement resides in a novel configuration of the respective blades in the rotor. The leading edge of the tip end portion of each blade tilts forwards to the upstream side, and also advances in the direction of rotation. In the tip end...

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Bibliographische Detailangaben
Hauptverfasser:	TSUNEYOSHI MITSUHASHI, NOBUYUKI YAMAGUCHI, MITSUSHIGE GOTO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The known rotor blade of axial-flow machines is improved. The improvement resides in a novel configuration of the respective blades in the rotor. The leading edge of the tip end portion of each blade tilts forwards to the upstream side, and also advances in the direction of rotation. In the tip end portion, between the tip end surface and a cross-section displaced from the tip end surface towards the central portion by 1/2 of a chord length, the configuration of the leading edge of the tip end portion is such that the angle S of skew direction of the leading edge of the tip end portion in the direction of rotation and the effective skew amount theta s eff in the direction of the leading edge of the tip end portion tilting forwards to the upstream side fall in a particular region in a diagram of S vs. theta s eff delimited by specific 4 points A, B, C and D determined through experiments.