ROTOR STAGE OF AXIAL TURBINE WITH IMPROVED CHORD/PITCH RATIO
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United States of America Patent
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Oct 3, 2013
filing date -
Oct 3, 2013
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Abstract
Rotor stage of an axial turbine comprising a shaft, adapted to rotate around an axis, and a plurality of blades, having at least one airfoil portion, which extends in a substantially radial direction normal to the axis, at a first radial distance from the axis, being arranged a number of airfoil portions lower than the number of airfoil portions arranged at a second radial distance from the axis, the first radial distance being smaller than the second radial distance, said rotor stage comprising a plurality of bearing blades, and a plurality of additional blade, said bearing blades comprising a first and a second rest element said additional blade being connected to said two subsequent bearing blades.
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