Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Vane or deflector
Patent
1990-12-10
1992-04-14
Look, Edward K.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Vane or deflector
415134, 4152141, 285330, 285364, 285406, 403375, F01D 900
Patent
active
051042886
ABSTRACT:
A steam turbine is disclosed which eliminates the transfer of thermal deformation from the inner cylinder to the stationary blade assemblies. A dual plane bolted connection and a free floating tongue and groove interface formed between the outer ring of the stationary blade assemblies and the turbine inner cylinder provided the clearance necessary to remove the deformation associated with the stationary blade assemblies, while supporting them within the turbine assembly. The outer ring of the stationary blade assemblies may either be formed as an integral component of formed from two sections which are then welded together. The present invention also permits the rotational blades of the turbine to be placed in close proximity to the outer ring of the stationary blade assemblies and the positioning of the flow guide on the outer ring, since the deformations due to the thermal deformation of the inner cylinder are now isolated and the deformation due to the stationary blade assemblies is eliminated. As a result, the dimensions of these components are more precisely controlled and result in a more efficient and economical steam turbine.
REFERENCES:
patent: 2929218 (1960-03-01), Yates
patent: 3741680 (1973-06-01), Killmann et al.
patent: 3764226 (1973-10-01), Matto
patent: 3945760 (1976-03-01), Miller
patent: 4137006 (1979-01-01), Becker
patent: 4816213 (1989-03-01), Groenendaal, Jr.
patent: 4900223 (1990-02-01), Groenendaal, Jr.
Groenendaal, Jr. John C.
Parker David M.
Look Edward K.
Verdier Christopher M.
Westinghouse Electric Corp.
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