US Patent 11448091 Washing tool, washing system and a method of washing

A washing tool for washing the engine core of a gas turbine engine has: a fluid connector, configured to be connected to a supply of engine washing fluid; a nozzle, in fluid communication with the fluid connector and configured to direct the engine washing fluid into the engine core; a fan blade fixture, configured to engage with a fan blade of the gas turbine engine and fix the position of the washing tool relative to the fan blade; and a second fixture, configured to engage with a part of the gas turbine engine that does not rotate about the axis of the gas turbine engine and fix the position of the washing tool relative to said part of the gas turbine engine. A washing system, a waste water collection system, a method of washing an engine core of a gas turbine engine, and a gas turbine engine, are also described.