Systeme und Verfahren zum Spülen eines Kraftstoffverteilers eines Gasturbinenmotors

Details

Veröffentlichungs-Nr.

EP3805540

Aktenzeichen

EP20201405

Anmeldetag

12. Oktober 2020

Veröffentlichung

6. Dezember 2023

Erteilung

6. Dezember 2023

Rechtsraum

EP

IPC

F02C7/232

Abstract

Fuel systems of gas turbine engines (14) of aircraft, and associated methods (500, 700) can permit reverse purging of one or more fuel manifolds of a gas turbine engine (14) to prevent coking in some modes of operation. A fuel system includes first and second fuel manifolds (34A, 34B) fluidly connectable to a combustor (20) of the gas turbine engine (14). A valve (52) is operatively disposed between the second fuel manifold (34B) and a fuel supply line (58) for controlling fuel supply to the second fuel manifold (34B). A reservoir (64) includes a movable piston (66) disposed therein and dividing the reservoir (64) into a first chamber (64A) and a second chamber (64B). The first chamber (64A) is fluidly connectable to the fuel supply line (58) or to a fuel purge line (68) via the valve (52). The second chamber (64B) is in fluid communication with the second fuel manifold (34B) to receive residual fuel from the second fuel manifold (34B).

Anmelder

Firma

Pratt & Whitney Canada Corp.

Land

🇨🇦 Kanada

Fachgebiete