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:
Nov. 12, 2024
Filed:
Dec. 19, 2023
Rolls-royce Deutschland Ltd & CO KG, Blankenfelde-Mahlow, DE;
Jorge Calderon, Berlin, DE;
ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, Blankenfelde-Mahlow, DE;
Abstract
A gas turbine engine control system and a method for limiting turbine overspeed in case of a shaft failure. An overspeed protection system detects a shaft failure of the engine. A variable stator vane mechanism adjusts stator vanes of a compressor of the engine in their rotational position, and is activated to move at least one row of the stator vanes into a closed position which blocks air flow through the compressor in case a shaft failure is detected. Bleed valves in the compressor have closed and open positions and divert in the opened position airflow through the compressor to a bypass channel. A detection system detects directly or indirectly the position of the stator vanes, and the control system sets the bleed valves to the open position when the detection system detects that the stator vanes have moved into the closed position.