Lufthansa Technik Ag

Holger Stefan Appel

Klaus Braeutigam

Sebastian Giljohann

Dirk Deja

A method for cleaning a jet engine includes introducing a cleaning medium having solid materials into the engine by way of at least one discharging device, wherein the cleaning medium exits from the discharging device at an exit speed of 80 m/s or less.

Method and device for cleaning a jet engine

A nozzle installation includes at least one nozzle configured for introducing cleaning media containing solids into a jet engine, and for a rotationally fixed connection to a shaft of a turbofan of a jet engine. The at least one nozzle has a swivel coupling to which a line connection is connectable. A flexible hose forms a connection of a nozzle-side outlet of the swivel coupling to an inlet of the at least one nozzle.

A method for cleaning a jet engine includes introducing into the engine, via a carrier gas by way of at least one nozzle, a cleaning medium which contains solids. The pressure of the carrier gas is 1 to 5 bar. An exit of the at least one nozzle is disposed at a radial spacing from a rotation axis of the engine which corresponds to 0.6 to 1.2 times the radius of the entry opening of a first compressor stage that is directed upstream. A main exit direction of the nozzle in relation to the rotation axis of the engine encloses an angle of 10 to 30&#xb0;.

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Offenbach, Germany

Holger Stefan Appel