Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1998-08-28
2000-03-07
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
416 96R, 416 96A, B63H 126
Patent
active
06033181&
ABSTRACT:
According to the invention, turbine blades are provided that have increased functional reliability, which is achieved in that the interior space (8) of the blade body (3) in the region of the suction-side wall (4), the pressure-side wall (5) and the trailing blade edge (7) has a closed steam-cooling system (9) having at least one cooling passage (10, 27, 28). An open cooling system (11) having at least one cooling passage (14, 15) and a plurality of film-cooling holes (22) which pass through the blade body (3) is formed in the region of the leading blade edge (6).
REFERENCES:
patent: 4505639 (1985-03-01), Groess et al.
patent: 4565490 (1986-01-01), Rice
patent: 5253976 (1993-10-01), Cunha
patent: 5320483 (1994-06-01), Cunha et al.
Endres Wilhelm
Wettstein Hans
Asea Brown Boveri AG
Look Edward K.
Nguyen Ninh
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