Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1994-04-19
1995-07-11
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...
415115, F01D 518
Patent
active
054315379
ABSTRACT:
A hollow air cooled airfoil blade (10) castable with a single pull core and having internal trip strips (28) at the leading edge. Parallel ribs (16,18) extend from the pressure side (12) of the blade to the suction side (14). A parting line (32) passes through the most forward point (34) of the airfoil, this being located on the suction side of the leading edge (36). The trip strips stop short of the parting line.
REFERENCES:
patent: 3627443 (1971-12-01), Pirzer
patent: 4416585 (1983-11-01), Abdel-Messeh
patent: 4514144 (1985-04-01), Lee
patent: 5052889 (1991-10-01), Abdel-Messeh
patent: 5232343 (1993-08-01), Butts
patent: 5259730 (1993-11-01), Damlis et al.
Kochey Jr. Edward L.
Lee Michael S.
Look Edward K.
United Technologies Corporation
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