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:
Jun. 06, 2023
Filed:
Jul. 16, 2020
Safran Aircraft Engines, Paris, FR;
Jacques Auriol, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
A method for controlling a clearance control valve of a turbomachine wherein, during a maneuver to increase engine speed in cruise phase, a command to reduce the opening of the clearance control valve is actuated by a Full Authority Digital Engine Control based on a change in the state of a step-climb signal provided by a flight management system in order to increase clearances at the tips of the turbomachine blades and an increase in the opening of the clearance control valve follows its reduction, at the expiry of either of the following two time limits: a first time limit starting at the change in the state of the step-climb signal and determined not to penalize the performance of the engine for too long and a second time limit starting at the end of the maneuver and determined as a function of a thermal time constant of the casing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile