Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1975-06-17
1976-11-02
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
039894126
ABSTRACT:
The body of the blade is formed by a shell which is cast with the root to define an internal cavity and a chamber in the blade tip. A plurality of ducts extend from a chamber in the root through the shell and along the periphery of the shell to the chamber in the blade tip. Passages within the shell communicate the internal cavity with outlets in the trailing edge. These passages are sized to dam up the cooling air in the cavity.
REFERENCES:
patent: 3014693 (1961-12-01), Horne
patent: 3111302 (1963-11-01), Bowmer
patent: 3171631 (1965-03-01), Aspinwall
patent: 3420502 (1969-01-01), Howald
patent: 3533711 (1970-10-01), Kercher
patent: 3623825 (1971-11-01), Schneider
patent: 3799696 (1974-03-01), Redman
patent: 3807892 (1974-04-01), Frei et al.
patent: 3885609 (1975-05-01), Frei et al.
patent: 3902819 (1975-09-01), Holchendler et al.
Brown Boveri-Sulzer Turbomachinery, Ltd.
Powell Jr. Everette A.
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