Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2005-12-21
2008-10-07
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...
Reexamination Certificate
active
07431562
ABSTRACT:
Methods and apparatus for cooling gas turbine rotor blades is provided. The rotor blades include an airfoil having a pressure sidewall and a second suction sidewall connected together at a leading edge and a trailing edge, such that an internal three pass serpentine cooling circuit is formed therebetween. The cooling circuit includes radially extending first, second, and third serpentine cooling cavities partially separated by, in axially aft succession, a first radially extending internal rib and a second internal rib. The second rib includes a radially inner first portion and a radially outer portion wherein the radially outer portion is angled obliquely with respect to the first portion.
REFERENCES:
patent: 5462405 (1995-10-01), Hoff et al.
patent: 5660524 (1997-08-01), Lee et al.
patent: 6126396 (2000-10-01), Doughty et al.
patent: 6220817 (2001-04-01), Durgin et al.
patent: 6224336 (2001-05-01), Kercher
patent: 6347923 (2002-02-01), Semmler et al.
patent: 6471479 (2002-10-01), Starkweather
patent: 6491496 (2002-12-01), Starkweather
patent: 6561758 (2003-05-01), Rinck et al.
patent: 6609884 (2003-08-01), Harvey
patent: 6672836 (2004-01-01), Merry
patent: 6955523 (2005-10-01), McClelland
patent: 6960060 (2005-11-01), Lee
patent: 6981742 (2006-01-01), Hsiao
patent: 7097419 (2006-08-01), Lee et al.
Hooper Tyler F.
Manning Robert F.
Reddy Bhanu
Zhu Gaoqiu
Andes Esq. William Scott
Armstrong Teasdale LLP
General Electric Company
Nguyen Ninh H
LandOfFree
Method and apparatus for cooling gas turbine rotor blades does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for cooling gas turbine rotor blades, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for cooling gas turbine rotor blades will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3992036