Steuerungslogik zur Kraftstoffeinsparung bei Gasturbinenmotoren

Details

Veröffentlichungs-Nr.

EP3744959

Aktenzeichen

EP20177600

Anmeldetag

29. Mai 2020

Veröffentlichung

28. Juni 2023

Erteilung

28. Juni 2023

Rechtsraum

EP

IPC

F02C9/42F02C9/54

Abstract

A method of operating a multi-engine aircraft (20) includes operating a first engine (10') of the aircraft (20) to provide motive power; and operating a second engine (10") of the aircraft (10") in a standby mode to provide substantially no motive power, a rotor (11, 12, 14, 15) of the second engine (10") having an idle rotational speed (MIRS) in the standby mode, and in the standby mode, sequentially executing cycles (86), a given cycle of the cycles (86) including: opening a set of variable guide vanes (18, 19) upstream a compressor section of the second engine (10"), spiking a rate of a fuel flow to a combustor (13) of the second engine (10"), the spiking and the opening timed to increase a rotational speed (RS) of the rotor (11, 12, 14, 15) of the second engine (10") to an upper threshold (UT) above the idle rotational speed (MIRS) of the rotor (11, 12, 14, 15), and in response to the rotational speed (RS) reaching the upper threshold (UT), at least substantially closing the set of variable guide vanes (18, 19).

Anmelder

Firma

Pratt & Whitney Canada Corp.

Land

🇨🇦 Kanada

Fachgebiete