Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1976-07-12
1978-09-05
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
416 92, F01D 518
Patent
active
041116046
ABSTRACT:
An ultra-high temperature gas turbine bucket is shown with subsurface cooling channels extending from a bucket platform to a manifold in the tip region of the bucket. A liquid trap is disposed radially outward from the manifold and is in communication therewith, the trap under conditions of normal operation remaining filled with liquid coolant. A liquid coolant discharge orifice communicates with the trap at the blade tip generally adjacent the leading edge thereof. Liquid coolant substantially free of entrained vaporized coolant is discharged from the trap through the discharge orifice and collected in a collection slot in the turbine casing. Vaporized coolant is discharged from a nozzle disposed at the trailing edge of the bucket in communication with the manifold.
REFERENCES:
patent: 1869855 (1932-08-01), Le Grand
patent: 3446481 (1969-05-01), Kydd
patent: 3619076 (1971-11-01), Kydd
patent: 3658439 (1972-04-01), Kydd
patent: 3736071 (1973-05-01), Kydd
patent: 3806275 (1974-04-01), Aspinwall
patent: 3816022 (1974-06-01), Day
patent: 3848307 (1974-11-01), Kydd
Cohen Joseph T.
General Electric Company
Jackson Richard G.
MaLossi Leo I.
Powell Jr. Everette A.
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