The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 17, 2025

Filed:

Jan. 20, 2023
Applicant:

Nuovo Pignone Tecnologie—s.r.l., Florence, IT;

Inventors:

Luca Andrei, Florence, IT;

Irene Cresci, Florence, IT;

Simone Cubeda, Florence, IT;

Fabrizio Paone, Florence, IT;

Girolamo Tripoli, Florence, IT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/12 (2006.01); B33Y 80/00 (2015.01); F01D 5/18 (2006.01); F01D 9/04 (2006.01);
U.S. Cl.
CPC ...
F01D 25/12 (2013.01); F01D 5/186 (2013.01); F01D 9/041 (2013.01); B33Y 80/00 (2014.12); F05D 2240/81 (2013.01); F05D 2260/202 (2013.01);
Abstract

The nozzle segment for a gas turbine comprises an inner platform and an outer platform as well as a plurality of airfoils arranged between the inner platform and the outer platform. A set of platform film cooling holes are provided, including at least one inner platform film cooling hole on a surface of the inner platform or on a surface of the outer platform facing said hot gas flow passage. A ratio between a distance in tangential direction of the platform film cooling hole from the pressure side of the respective airfoil and a width of the hot gas flow passage in tangential direction at the platform film cooling hole is comprised between 0 and 0.5.


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