Ceramic blades for turbomachines

Details Ceramic blades for turbomachines Ceramic blades for turbomachines

1983-12-14

1986-01-07

Powell, Jr., Everette A.

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

416 96R, 416 97R, 416241B, F01D 518, F01D 528

Patent

active

045631255

ABSTRACT:
The blade comprises a metal web (1) surrounded by a refractory ceramic casing (2). The central web (1) is provided with at least one ventilation passage (4) in which flows a small amount of ventilation air. The zones where there is contact between the ceramic casing (2) and the central metal web (1) are provided with cooling cavities (5) in which cooling air flows at a high rate so as to establish a forced cooling condition.

REFERENCES:
patent: 3433015 (1969-03-01), Sneeden
patent: 4017209 (1977-04-01), Bodman
patent: 4247259 (1981-01-01), Saboe et al.
patent: 4285634 (1981-08-01), Rossman et al.
patent: 4288201 (1981-09-01), Wilson
patent: 4293275 (1981-10-01), Kobayashi et al.
patent: 4396349 (1983-08-01), Hueber
patent: 4480956 (1984-11-01), Kruger

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