Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2007-09-21
2010-12-28
Kershteyn, Igor (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
Reexamination Certificate
active
07857589
ABSTRACT:
A turbine airfoil having a mini-serpentine flow cooling circuit on the leading edge portion to provide both convective and film cooling for the leading edge portion. The mini-serpentine flow cooling circuits are formed as separate modules, each module including a three-pass or a five-pass serpentine flow circuit with the first leg on one side of the leading edge and the last leg on the other side of the leading edge such that the middle leg of the serpentine flow circuit for each module is located along the stagnation line of the airfoil. Film cooling holes discharge cooling air from each leg onto the airfoil surface. Each module includes a metering and impingement hole located on the bottom of the first leg to individually meter cooling air from the cooling supply cavity.
REFERENCES:
patent: 5667359 (1997-09-01), Huber et al.
patent: 5702232 (1997-12-01), Moore
patent: 5720431 (1998-02-01), Sellers et al.
patent: 6247896 (2001-06-01), Auxier et al.
patent: 6280140 (2001-08-01), Soechting et al.
patent: 6379118 (2002-04-01), Lutum et al.
patent: 6533547 (2003-03-01), Anding et al.
patent: 6705831 (2004-03-01), Draper
patent: 7416390 (2008-08-01), Liang
patent: 7520725 (2009-04-01), Liang
patent: 7527474 (2009-05-01), Liang
patent: 7537431 (2009-05-01), Liang
patent: 7625179 (2009-12-01), Cunha et al.
patent: 7717675 (2010-05-01), Liang
Florida Turbine Technologies, Inc.
Kershteyn Igor
Ryznic John
LandOfFree
Turbine airfoil with near-wall cooling does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Turbine airfoil with near-wall cooling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Turbine airfoil with near-wall cooling will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4171191