Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Coating – specific composition or characteristic
Patent
1994-07-27
1997-03-18
Larson, James
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Coating, specific composition or characteristic
148404, 148902, 1641221, 1641222, F01D 514
Patent
active
056116705
ABSTRACT:
A gas-turbine moving blade made of a Ni-base superalloy containing less grain boundary strengthening elements, in which a blade portion is formed of a single crystal and the rest is formed of columnar crystals, and a gas turbine including the moving blade. A thermal efficiency of the gas turbine can be improved to 35% or more, and a thermal efficiency of complex power generation with a steam turbine can be improved to 45% or more.
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patent: 4033792 (1977-07-01), Giamei et al.
patent: 4184900 (1980-01-01), Erickson et al.
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patent: 4609029 (1986-09-01), Vishnevsky et al.
patent: 4637448 (1987-01-01), Burke et al.
Journal of Materials Engineering and Performance, vol. 2, No. 4, Aug. 1993, Materials Park, Ohio, U.S., pp. 481-487, by K. Harris et al, entitled "Development of Two Rhenium-Containing Supperalloys for single-Crystal Blade and Directionally solidified Vane Applications in Advanced Turbine Engines".
Iijima Katsumi
Kano Kimio
Kobayashi Mitsuru
Matsuzaki Hiroyuki
Saito Tosiaki
Hitachi , Ltd.
Larson James
Tohoku Electric Power Co. Inc.
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