Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices
Reexamination Certificate
2007-02-15
2009-12-15
Kershteyn, Igor (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Radial flow devices
C416SDIG004
Reexamination Certificate
active
07632075
ABSTRACT:
A turbine blade including an airfoil having a pressure sidewall and a suction sidewall joined together along an upstream leading edge and a downstream trailing edge. The leading edge and trailing edge are formed as substantially straight edges, and portions of the pressure sidewall and suction sidewall adjacent the trailing edge form substantially planar surfaces. The airfoil has an uncoated nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in Table 1 wherein Z represents a perpendicular distance from a plane normal to a radius of a turbine centerline and containing the X and Y values with the Z value commencing at zero in the X, Y plane at a radially innermost aerodynamic section of the airfoil, and X and Y represent coordinate values defining the airfoil profile at each distance Z which, when connected by smooth continuing arcs, define profile sections at each distance Z.
REFERENCES:
patent: 6450770 (2002-09-01), Wang et al.
patent: 6461110 (2002-10-01), By et al.
patent: 6739839 (2004-05-01), Brown et al.
patent: 6779977 (2004-08-01), Lagrange et al.
patent: 6910868 (2005-06-01), Hyde et al.
patent: 7014424 (2006-03-01), Cunha et al.
patent: 7094034 (2006-08-01), Fukuda et al.
patent: 7534091 (2009-05-01), Ravanis et al.
patent: 7537433 (2009-05-01), Girgis et al.
Liang George
Malandra Anthony J.
Kershteyn Igor
Siemens Energy Inc.
LandOfFree
External profile for turbine blade airfoil does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with External profile for turbine blade airfoil, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and External profile for turbine blade airfoil will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4119712