F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
277/15, 170/60
F01D 11/00 (2006.01) F01D 11/02 (2006.01) F16J 15/44 (2006.01) F16J 15/447 (2006.01)
Patent
CA 1317613
16 53,875 Abstract of the Disclosure Methods and apparatus for preventing swirl in a steam turbine having an annular- shaped stationary portion through which extends in regions of differential pressure a rotatable shaft include flow dams situated perpendicularly with respect to a plurality of spaced-apart annular teeth which extend radially inward from the stationary portion toward the shaft to within close proximity thereof each adjacent pair of teeth forming a cavity there between By damming the cavities a circumferential steam flow is substantially minimized thereby preventing the conditions necessary for the inducement of swirl.
589557
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Westinghouse Electric Corporation
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