System und Verfahren zum Waschen von Flugzeugmotoren

Details

Veröffentlichungs-Nr.

EP4814263

Anmeldetag

30. März 2026

Veröffentlichung

30. September 2026

Rechtsraum

EP

IPC

F01D17/16, F01D25/00

Abstract

A method for washing an aircraft engine (10) including a compressor (14) having variable guide vanes (141) pivotable about respective spanwise axes (S0) and having a secondary air system (100) in fluid communication with the compressor (14) via a bleed outlet (23) located downstream of the variable guide vanes (141), the method includes: injecting a washing fluid into the compressor (14) of the aircraft engine (10); while the compressor (14) is rotating at a rotational speed, pivoting the variable guide vanes (141) about their respective spanwise axes (S0) to a purging position at which an air pressure at the bleed outlet (23) is maximal for the rotational speed of the compressor (14); and after the injecting of the washing fluid, expelling the washing fluid out of the secondary air system (100) by injecting air in the bleed outlet (23) with the compressor (14) being in rotation while the variable guide vanes (141) are in the purging position.

Anmelder

Firma

Pratt & Whitney Canada Corp.

Land

🇨🇦 Kanada

Fachgebiete