Airfoil having multi-passage baffle

Details Airfoil having multi-passage baffle Airfoil having multi-passage baffle

1992-04-27

1993-05-04

Kwon, John T.

Rotary kinetic fluid motors or pumps

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

415116, 416 96A, F01D 508

Patent

active

052075567

ABSTRACT:
A hollow impingement baffle includes a septum extending between its bottom and top and spaced between its forward and aft edges to define a forward manifold and an aft manifold. The baffle includes an inlet having a forward portion for channeling a first portion of compressed air to the forward manifold, and an aft portion for channeling a second portion of the compressed air into the aft manifold with a predetermined pressure drop for obtaining a lower pressure in the aft manifold relative to a higher pressure in the forward manifold. The baffle includes impingement holes for discharging the compressed air against the inner surface of a surrounding airfoil for the impingement cooling thereof.

REFERENCES:
patent: 3475107 (1969-10-01), Auxier
patent: 3540810 (1970-11-01), Kercher
patent: 3767322 (1973-10-01), Durgin et al.
patent: 3781129 (1973-12-01), Aspinwall
patent: 3867068 (1975-02-01), Corsmeier et al.
patent: 4056332 (1977-11-01), Meloni
patent: 4252501 (1981-02-01), Peill
patent: 4257734 (1981-03-01), Guy et al.
patent: 4413949 (1983-11-01), Scott
patent: 4798515 (1989-01-01), Hsia et al.
patent: 4930980 (1990-06-01), North et al.
European Pat. 392,664 Oct. 1990.

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