Turbine static structure for reduced leakage air

Details Turbine static structure for reduced leakage air Turbine static structure for reduced leakage air

2011-06-14

2011-06-14

Cuff, Michael (Department: 3741)

Power plants

Combustion products used as motive fluid

Combustion products generator

C415S191000

Reexamination Certificate

active

07958735

ABSTRACT:
A turbine static structure having reduced leakage air is disclosed. A static structure turbine support ring having few segments is disclosed in which the segments have improved thermal expansion capability with reduced air leakage. A plurality of radially extending slots are placed in the segments to reduce stiffness. In order to minimize air leakage through the support ring, generally circumferential slots are placed in the ring and connect with the generally radially extending slots. Positioned in each of the generally radially extending slots and generally circumferential slots, and in contact with each other, are two sheet metal plates. The plates are staked to the support ring structure so as to provide a seal member, yet compensate for thermal growth.

REFERENCES:
patent: 3781125 (1973-12-01), Rahaim
patent: 4017213 (1977-04-01), Przirembel
patent: 5343694 (1994-09-01), Toborg
patent: 5372476 (1994-12-01), Hemmelgarn et al.
patent: 7771164 (2010-08-01), Manteiga et al.
U.S. Appl. No. 10/891,400, Ellis.

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