Patent ID: 9631512
Date: 2017-04-25
CPC Classifications: F01D,F02C

Claim:
1. A method for washing a compressor in a gas turbine engine, the method comprising: removing an injector from an injector port of the gas turbine engine; installing a local air supply adapter to the injector port, the local air supply adapter being part of a pressurized air supply assembly, the gas turbine engine being an air supply; coupling the pressurized air supply assembly to a secondary air system of the gas turbine engine including coupling the pressurized air supply assembly to a buffer air path, the buffer air path leading to a first seal of at least one intermediate bearing assembly of the gas turbine engine; cranking a compressor rotor assembly of the gas turbine engine; supplying offline buffer air to the secondary air system from the air supply and via the pressurized air supply assembly; and delivering cleaner to the compressor.