Steam turbine with improved blade ring and cylinder interface

Details Steam turbine with improved blade ring and cylinder interface Steam turbine with improved blade ring and cylinder interface

1991-09-26

1992-10-06

Kwon, John T.

Rotary kinetic fluid motors or pumps

Including thermal expansion joint

415108, F01D 2526

Patent

active

051526646

ABSTRACT:
A steam turbine having a inner cylinder with a plurality of steam inlets which feed a plurality of nozzle blocks and a curtis stage blade ring with a circumferential groove which cooperates with a circumferential tongue extending from the inner cylinder to position the blade ring properly within the cylinder, the tongue has a plurality of ports each of which have a kerf extending from each port through an inner circumferential margin of the tongue to eliminate heat induced stress cracking between the ports and inner circumferential margin of the tongue.

REFERENCES:
patent: 3592557 (1971-07-01), Haas
patent: 3754833 (1973-08-01), Remberg
patent: 4362464 (1982-12-01), Stock
patent: 4840537 (1989-06-01), Silvestri, Jr.

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