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.
Patent No.:
Date of Patent:
Oct. 17, 2023
Filed:
Mar. 21, 2022
GE Avio S.r.l., Rivalta di Torino, IT;
GE Avio S.r.l., Rivalta di Torino, IT;
Abstract
In a fuel control system () for a gas turbine engine () having a gas generator () and a turbine () driven by the gas generator (): a main fuel regulator () determines a demand (Wdem) of fuel flow (W) to be introduced in the gas turbine engine (), based on an input request (PLA); and a first limiter stage (), operatively coupled to the main fuel regulator (), causes an adjustment of the fuel flow (W) based on engine safety operating limits. The first limiter stage () is provided with a Ngdot limiter () to cause an adjustment of the fuel flow (W) when the gas generator speed rate of change (Ndot) is determined to overcome acceleration/deceleration scheduled safety limits; the Ngdot limiter () implements a predictor (), to perform a prediction () of the fuel flow rate of change (Wdot), or fuel flow (W), allowing the gas generator speed rate of change (Ndot) to track a scheduled reference value (Ngdot).