Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2006-11-07
2006-11-07
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...
C415S115000
Reexamination Certificate
active
07131818
ABSTRACT:
An airfoil, and in a disclosed embodiment a rotor blade, has a serpentine cooling path. To best account for the Coriolis effect, the paths of the serpentine cooling channel have trapezoidal cross-sections. An area of the rotor blade between a smaller side of the trapezoidal-shaped paths, and a facing wall of the rotor blade has high thermal and mechanical stresses, and is a challenge to adequately cool. A microcircuit, which is a very thin cooling circuit having crossing pedestals, is embedded into the blade in this area. The microcircuit provides additional cooling, and addresses the challenges with regard to cooling these areas.
REFERENCES:
patent: 5720431 (1998-02-01), Sellers et al.
patent: 6514042 (2003-02-01), Kvasnak et al.
patent: 6896487 (2005-05-01), Cunha et al.
U.S. Appl. No. 10/637,352 entitled: “Microcircuit Airfoil Main Body,” filed Aug. 8, 2003.
Chon Young
Cunha Frank J.
Mongillo Dominic
Pietraszkiewicz Edward F.
Teller Bret
Carlson & Gaskey & Olds
United Technologies Corporation
LandOfFree
Airfoil with three-pass serpentine cooling channel and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Airfoil with three-pass serpentine cooling channel and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Airfoil with three-pass serpentine cooling channel and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3683300