Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2011-02-15
2011-02-15
Verdier, Christopher (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
07887294
ABSTRACT:
A turbine airfoil with a plurality of film cooling holes having a diffuser having both stream-wise and spanwise expansion of the cooling air flow. The diffuser is formed from a series of ellipses with a gradual increase in the cross sectional areas in the flow direction. The diffuser has a stream-wise surface of continuous curvature of about 7 degrees, and both the spanwise outward surface and the spanwise inward surface has a continuous curvature of about 7 degrees. The upstream side surface of the diffuser is formed substantially along a straight line. The ellipse shaped diffuser has spanwise and stream-wise curved surfaces such that at the hole opening onto the airfoil wall, the hole has an elliptical cross sectional shape with the major axis in the spanwise direction of the airfoil.
REFERENCES:
patent: 3527543 (1970-09-01), Howald
patent: 4653983 (1987-03-01), Vehr
patent: 4664597 (1987-05-01), Auxier et al.
patent: 4684323 (1987-08-01), Field
patent: 4705455 (1987-11-01), Sahm et al.
patent: 4738588 (1988-04-01), Field
patent: 5382133 (1995-01-01), Moore et al.
patent: 6183199 (2001-02-01), Beeck et al.
patent: 6243948 (2001-06-01), Lee et al.
patent: 6287075 (2001-09-01), Kercher
patent: 6307175 (2001-10-01), Blochlinger et al.
patent: 6869268 (2005-03-01), Liang
patent: 6918742 (2005-07-01), Liang
patent: 7041933 (2006-05-01), Forrester et al.
patent: 2002/0197160 (2002-12-01), Liang
Florida Turbine Technologies, Inc.
Ryznic John
Verdier Christopher
LandOfFree
Turbine airfoil with continuous curved diffusion film holes 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 continuous curved diffusion film holes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Turbine airfoil with continuous curved diffusion film holes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2630514