Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2008-05-27
2008-05-27
Look, Edward K. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
C416S09600A
Reexamination Certificate
active
07377747
ABSTRACT:
An airfoil for a gas turbine engine includes a generally radially-extending first cooling channel disposed between pressure and suction sidewalls adjacent the leading edge of the airfoil, and a generally radially-extending second cooling channel disposed aft of the first cooling channel. The second cooling channel is closed off at an outer end thereof and is disposed in fluid communication with a forward inlet an inner end thereof. The first and second cooling channels are separated by a partition having a plurality of impingement holes therein. A generally axially extending end channel is disposed radially outward from the second cooling channel in fluid communication with the first cooling channel and with a dust hole disposed in the tip cap. The dust hole is sized to permit the exit of debris entrained in a flow of cooling air from the airfoil.
REFERENCES:
patent: 4820122 (1989-04-01), Hall et al.
patent: 4820123 (1989-04-01), Hall
patent: 5062768 (1991-11-01), Marriage
patent: 5176499 (1993-01-01), Damlis et al.
patent: 5378108 (1995-01-01), Zelesky
patent: 5503529 (1996-04-01), Anselmi et al.
patent: 6164913 (2000-12-01), Reddy
patent: 6318960 (2001-11-01), Kuwabara et al.
patent: 2002/0090298 (2002-07-01), Beeck et al.
patent: 2002/0176776 (2002-11-01), Parneix et al.
patent: 2003/0026698 (2003-02-01), Flodman et al.
patent: 2003/0133798 (2003-07-01), Dailey
patent: 0913556 (1999-05-01), None
patent: 1350424 (1974-04-01), None
Adams Intellectual Property Law, P.A.
Andes Esq. William Scott
General Electric Company
Look Edward K.
White Dwayne J
LandOfFree
Turbine airfoil with integrated impingement and serpentine... 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 integrated impingement and serpentine..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Turbine airfoil with integrated impingement and serpentine... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2772146