Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2006-03-28
2006-03-28
Nguyen, Ninh H. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
C415S115000
Reexamination Certificate
active
07018176
ABSTRACT:
According to the present invention, a hollow airfoil is provided that comprises a leading edge wall portion, a plurality of cavities, one or more crossover ribs, a plurality of cooling apertures, and a plurality of impingement ribs. The cavities are disposed adjacent the leading edge wall portion, between the leading edge wall portion and a first rib. The crossover ribs extend between the leading edge wall portion and the first rib, and at least one crossover rib is disposed between a pair of the cavities. The cooling apertures are disposed in the leading edge wall portion, providing a passage through which cooling air can exit the cavities. The impingement apertures are disposed in the first rib, providing a passage through which cooling air can enter the cavities. At least one of the impingement apertures is contiguous with one of the crossover ribs.
REFERENCES:
patent: 4767268 (1988-08-01), Auxier et al.
patent: 5356265 (1994-10-01), Kercher
patent: 5669759 (1997-09-01), Beabout
Gregg Shawn J.
Mercadante Ruthann
Mongillo Dominic J.
Nguyen Ninh H.
United Technologies Corporation
LandOfFree
Cooled turbine airfoil does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cooled turbine airfoil, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cooled turbine airfoil will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3602590