Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between blade edge and static part
Patent
1992-12-23
1994-12-27
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
415115, F01D 520
Patent
active
053759737
ABSTRACT:
This disclosure describes a cooling and manufacturing enhancement for gas turbine engine outer air seals. The invention provides convective cooling in a counter-flow array, internal heat transfer augmentation through the use of boundary layer trip-strips, coolant Mach number control through the use of tapered convective channels, inter-segment purge without additional secondary cooling air, and is castable.
REFERENCES:
patent: 4013376 (1977-03-01), Bisson et al.
patent: 5205115 (1993-04-01), Plemmons
patent: 5219268 (1993-06-01), Johnson
Auxier Thomas A.
Kelch George W.
Mack Gregory J.
Sloop Robert V.
Look Edward K.
Sgantzos Mark
United Technologies Corporation
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