Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1977-03-02
1978-10-03
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 97R, F01D 518
Patent
active
041181450
ABSTRACT:
A gas turbine blade is shown having channels subjacent the surface for a coolant to flow therethrough from a radially inner inlet to a discharge port adjacent the blade tip. The channels include intermediate enlarged chambers wherein a portion of the coolant is permitted to vaporize, so that the smaller diameter coolant distributing channels remain substantially liquid full. The vapor from the chambers is exhausted at a position radially inwardly of the blade tip and preferably below the blade platform.
REFERENCES:
patent: 2883151 (1959-04-01), Dolida
patent: 3816022 (1974-06-01), Day
patent: 3844679 (1974-10-01), Grondahl et al.
patent: 3849025 (1974-11-01), Grondahl
patent: 3902819 (1975-09-01), Holchendler et al.
Powell Jr. Everette A.
Westinghouse Electric Corp.
Winans F. A.
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