Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part
Patent
1990-12-03
1992-02-18
Kwon, John T.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
415134, 415138, 415139, 277 5, 277138, F04D 2908
Patent
active
050888889
ABSTRACT:
To prevent overheating of the gaps between shroud segments circumferentially arranged about a high pressure turbine rotor, an improved seal is provided to block radial leakage flow of hot working gas through the gaps, as well as to restrict axial flow of working gas in the gaps. The seal includes a corrugated, axial fluid flow restricting element sandwiched between a pair of radially spaced, gap spanning shim sealing elements. Pressurized cooling air is admitted to the gap at locations between the shim sealing elements via passages through adjacent shroud segments to cool the gap and to further restrict working gas axial flow in the gap.
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General Electric Company
Kwon John T.
Moore, Jr. Charles L.
Squillaro Jerome C.
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