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:
Dec. 23, 2025

Filed:

Jul. 11, 2022
Applicant:

Power Systems Mfg., Llc, Jupiter, FL (US);

Inventors:

Douglas James Dietrich, West Palm Beach, FL (US);

Alexander Vasili Rozendaal, Palm Beach Garden, FL (US);

Stephen Fiebiger, Jupiter, FL (US);

Alex Torkaman, Port St Lucie, FL (US);

Assignee:

Power Systems Mfg., LLC, Jupiter, FL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/22 (2006.01); F01D 5/14 (2006.01); F01D 5/26 (2006.01); F01D 25/06 (2006.01);
U.S. Cl.
CPC ...
F01D 5/225 (2013.01); F01D 5/141 (2013.01); F01D 5/26 (2013.01); F01D 25/06 (2013.01); F05D 2220/32 (2013.01); F05D 2240/30 (2013.01); F05D 2240/307 (2013.01); F05D 2260/96 (2013.01);
Abstract

A gas turbine blade for a gas turbine engine includes an attachment, a blade neck portion, a platform, an airfoil, and a shroud. The gas turbine engine has an operating speed range. The blade neck portion extends radially outward from the attachment. The platform is attached to the blade neck portion opposite the attachment. The airfoil extends radially outward from the platform. The airfoil includes a leading edge, a trailing edge, and an axial chord defined between the leading and trailing edges. The axial chord defines a mid-chord point. The shroud is attached to an end of the airfoil. The shroud includes an upper surface and a modal response tuning component attached to the upper surface of the shroud. The modal response tuning component is offset from the mid-chord point a predetermined distance to move modal response of the gas turbine blade outside of the operating speed range.


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