Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between blade edge and static part
Patent
1995-06-06
1996-09-10
Look, Edward K.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Between blade edge and static part
415134, 415139, F01D 1118
Patent
active
055539998
ABSTRACT:
A turbine shroud hanger includes forward and aft radially outer hooks for mounting the hanger to an annular shroud support, and forward and aft radially inner hooks for supporting a shroud panel radially above a plurality of turbine rotor blades for controlling tip clearance therebetween. The hanger forward outer hook has a radially outer land defined by a pair of pads at distal ends of the hook, with a ridge extending circumferentially therebetween. The outer land is interrupted by a central recess extending between the pads and aft from the ridge to a distal edge of the hook. The forward outer hook has a predetermined radial height which is predeterminedly larger than the radial height of the corresponding forward slot in the shroud support for effecting an interference fit at least in part at the pair of pads to provide a seal against leakage of bleed air.
REFERENCES:
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patent: 4303371 (1981-12-01), Eckert
patent: 4573866 (1986-03-01), Sandy, Jr. et al.
patent: 5022816 (1991-06-01), Maier et al.
patent: 5169287 (1992-12-01), Proctor et al.
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patent: 5197853 (1993-03-01), Creevy et al.
patent: 5205708 (1993-04-01), Plemmons et al.
General Electric Company, CF34-3A1 gas turbine engine in production more than 1 year; 3 figures showing high pressure turbine shrouds and unpublished proposed temporary fix.
Brassfield Steven R.
Di Salle David A.
Linger David R.
Plemmons Larry W.
Proctor Robert
General Electric Company
Hess Andrew C.
Lee Michael S.
Look Edward K.
Traynham Wayne O.
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