Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2006-08-24
2009-06-23
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...
C415S177000
Reexamination Certificate
active
07549844
ABSTRACT:
A cooling system for a turbine airfoil of a turbine engine having a trailing edge cooling channel with bifurcated exhaust channels formed by suction and pressure side trailing edge cooling channels in fluid communication with a central trailing edge cooling channel. The suction and pressure side trailing edge cooling channels may be separated with a trailing edge rib. The suction and pressure side trailing edge cooling channels may be recessed from the airfoil external surface to control the flow of cooling fluids from the cooling system such that the exhaust flow minimizes shear mixing and thus lowers the aerodynamic loss yet maintains high film cooling effectiveness for the airfoil trailing edge.
REFERENCES:
patent: 4073599 (1978-02-01), Allen et al.
patent: 4526512 (1985-07-01), Hook
patent: 4930980 (1990-06-01), North et al.
patent: 5176499 (1993-01-01), Damlis et al.
patent: 5813827 (1998-09-01), Nordlund et al.
patent: 5927946 (1999-07-01), Lee
patent: 6331098 (2001-12-01), Lee
patent: 6471479 (2002-10-01), Starkweather
patent: 6499949 (2002-12-01), Schafrik et al.
patent: 6506013 (2003-01-01), Burdgick et al.
patent: 6517312 (2003-02-01), Jones et al.
patent: 6589010 (2003-07-01), Itzel et al.
patent: 6607356 (2003-08-01), Manning et al.
patent: 6761534 (2004-07-01), Willett
patent: 6957949 (2005-10-01), Hyde et al.
patent: 6981840 (2006-01-01), Lee et al.
patent: 6984103 (2006-01-01), Lee et al.
patent: 7125225 (2006-10-01), Surace et al.
patent: 7255535 (2007-08-01), Albrecht et al.
patent: 04203203 (1992-07-01), None
Nguyen Ninh H
Siemens Energy Inc.
LandOfFree
Turbine airfoil cooling system with bifurcated and recessed... 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 cooling system with bifurcated and recessed..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Turbine airfoil cooling system with bifurcated and recessed... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4127117