Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1977-12-27
1980-12-02
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...
415115, F01D 518
Patent
active
042368707
ABSTRACT:
A convectively cooled turbine blade has a three-pass cooling air passageway. Air enters the blade at its root end, travels along a reversing path through the passageway and is emitted through an array of slots in the blade trailing edge generally configured in the form of a Venetian blind. Pedestals or turning vanes located in the turning areas of the passageway control separation of flow to prevent development of local hot spots. Pedestals located in a midchord portion of the passageway prevent sidewall panel vibration and enhance cooling efficiency. A root metering plate governs magnitude of cooling flow through the turbine blade.
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patent: 3706508 (1972-12-01), Moskowitz et al.
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patent: 3807892 (1974-04-01), Frei et al.
patent: 3989412 (1976-11-01), Mukherjee
patent: 4073599 (1978-02-01), Allen et al.
Gladden Robert E.
Hucul, Jr. Elias
Powell Jr. Everette A.
United Technologies Corporation
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