[12] Patent
[11] Patent No.:GC0009383  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/141743
Date of the Decision to Grant the Patent:17/Dec/2018

[21] Application No.:GC 2015-29074

[22] Filing Date:16/3/2015

[30] Priority:

[33] State [32] Priority date [31] Priority No.

[72] Inventors:1- NEUBRAND, FabianŲŒ2- HOFMANN, Willy Heinz

[73] Owner: Ansaldo Energia Switzerland AG, Romerstrasse 36, 5401Baden, CH , Baden, Switzerland

[74] Agent: Saba & Co. T.M.P




Int. Cl.: F01D 5/14, 5/18, 9/02 (2006.01)

[56] Cited Documents:

-US-7,217,101 B2 (Harvey; Neil Wiliam) May-2007
-US-7,497,664 B2 (Walter; Robert A.) March-2009
-US-8,485,787 B2 (Marra; John J.) July-2013
Examiner: Eng. Ghassan F. AlBuhairan

[57] Abstract: The invention refers to a a gas turbine blade comprising an airfoil extending in radial direction from a blade root to a blade tip, defining a span ranging from 0% at the blade root to 100% at the blade tip, and extending in axial direction from a leading edge to a trailing edge, which limit a chord with an axial chord length defined by an axial length of a straight line connecting the leading edge and trailing edge of the airfoil depending on the span.The invention is characterized in that the axial chord length increases at least from 80% span to 100% span. Fig. 3
No. of claims: 12     No. of figures: 3


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