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:
Oct. 18, 2022

Filed:

Mar. 01, 2018
Applicant:

GE Avio S.r.l., Rivalta di Torino, IT;

Inventors:

Felice Felippone, Rivalta di Torino, IT;

Stefano Ettorre, Bari, IT;

Simone Castellani, Viareggio, IT;

Assignee:

GE AVIO S.R.L., Rivalta di Torino, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64F 5/60 (2017.01); F02C 9/58 (2006.01);
U.S. Cl.
CPC ...
B64F 5/60 (2017.01); F02C 9/58 (2013.01); F05D 2260/83 (2013.01); F05D 2270/021 (2013.01);
Abstract

A method () for testing control logic for a propeller driven by a gas turbine engine of an aircraft includes overriding () a signal indicating the aircraft is operating in a ground mode. The method can further include testing () minimum pitch protection logic when the signal is overridden; determining () the gas turbine engine is operating at a ground fine setting; restoring () the signal to an original state in which the signal indicates the aircraft is operating in the ground mode; modifying () pitch protection logic; determining () the propeller is operating at an overspeed condition; and testing () the propeller overspeed protection logic. In addition, the method can also determine () the propeller is operating at a low pitch condition when the gas turbine engine is operating at the ground fine setting.


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