US Patent 7175393 Transonic blade profiles

Patent 7175393 was granted and assigned to Bharat Heavy Electricals Limited on February, 2007 by the United States Patent and Trademark Office.

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US Patent 12071889 Counter-rotating turbine

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US Patent 11885233 Turbine engine with airfoil having high acceleration and low blade turning

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Patent Inventor Names

Amrit Lal Chandraker0

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Patent abstract

The present invention relates to the aerodynamic design of moving blades, pertaining to later stages of axial steam turbines where the inlet flow is non-uniform over the blade height. The claim made herein is a set of six invented transonic blade profiles which can be used to develop various type of 3D twisted blades for axial steam turbine. The aerodynamic characteristics of these 6 base profiles are evaluated herein as a function of stagger angle and pitch/chord ratios.

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