Turbine bucket with optimized cooling circuit

Details Turbine bucket with optimized cooling circuit Turbine bucket with optimized cooling circuit

2007-04-24

2007-04-24

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With fluid passage in working member communicating with...

Discharge solely at periphery normal to rotation axis

C416S09700R

Reexamination Certificate

active

10859235

ABSTRACT:
A turbine bucket includes a cooling circuit through a dovetail section, a shank section and an airfoil section. The cooling circuit is configured to maximize cooling ability and maximize a useful life at base load operation at firing temperatures of up to 2084° F. while minimizing negative effects on performance. The cooling circuit includes a plurality of cooling holes having predetermined positions and sizes, resulting in increased cooling flow near a trailing edge of the airfoil section and effecting turbulation in the airfoil section to increase bulk and local creep margins throughout the airfoil section.

REFERENCES:
patent: 3738771 (1973-06-01), Delarbre et al.
patent: 3791758 (1974-02-01), Jenkinson
patent: 3936227 (1976-02-01), Wojcik
patent: 5413463 (1995-05-01), Chiu et al.
patent: 5536143 (1996-07-01), Jacala et al.
patent: 5591002 (1997-01-01), Cunha et al.
patent: 5593274 (1997-01-01), Carreno et al.
patent: 5611662 (1997-03-01), Cunha
patent: 5634766 (1997-06-01), Cunha et al.
patent: 5743708 (1998-04-01), Cunha et al.
patent: 6390774 (2002-05-01), Lewis et al.
patent: 6397604 (2002-06-01), Eldrid et al.
patent: 6422807 (2002-07-01), Leach et al.
patent: 6422817 (2002-07-01), Jacala
patent: 6431833 (2002-08-01), Jones
patent: 6464455 (2002-10-01), Wilson
patent: 6464461 (2002-10-01), Wilson et al.
patent: 6477773 (2002-11-01), Wilson et al.
patent: 6491498 (2002-12-01), Seleski et al.
patent: 6506022 (2003-01-01), Bunker
patent: 6554566 (2003-04-01), Nigmatulin
patent: 6644921 (2003-11-01), Bunker et al.
patent: 6715990 (2004-04-01), Arness et al.
patent: 6722852 (2004-04-01), Wedlake et al.
patent: 6910864 (2005-06-01), Tomberg
patent: 0 194 883 (1986-09-01), None
patent: 0 550 184 (1993-07-01), None
patent: 808837 (1959-02-01), None
patent: 855777 (1960-12-01), None
patent: 03-182602 (1991-08-01), None

Affiliated with

Also associated with

Rating

Turbine bucket with optimized cooling circuit 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 bucket with optimized cooling circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Turbine bucket with optimized cooling circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3724083