F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
170/73
F01D 5/30 (2006.01)
Patent
CA 1297799
53,874 - 12 - ABSTRACT OF THE DISCLOSURE A turbine blade having a bilaterally symmetrical side entry blade root for attaching the blade to a rotor of a steam turbine. The rotor has a longitudinal rotational axis of symmetry about which the blades rotate. The blades have a foil portion and a platform interposed between the foil portion and the blade roots. The roots are positionable in one of a plurality of complementary shaped grooves circumferentially disposed about the turbine rotor. The root is characterized by at least one pair of lugs symmetrically arranged on opposite sides of the root with each of the lugs having an outer bearing surface for reacting against a complementary opposed mating surface formed in each of the rotor grooves. The bearing surfaces on the lugs are aligned along an arc of a circle centered on the rotor rotational axis.
594660
Bereskin & Parr
Westinghouse Electric Corporation
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