Foreign body separator (aviation)

CH-53GS of the Army Aviation in ISAF operation during the approach. The EAPS on the port side is easy to see due to the lack of paint.

A Foreign body , inlet particle separator , particle separator , Inlet Particle Separator ( English ; abbreviation IPS ) or Engine Air Particle Separator (engl. For, engine air particle separators') is a mechanism which, in particular in military helicopters and turboprop - Engines is used to protect the turbine (s) from foreign objects such as sand or the like in the sucked in air.

This usually consists of an additional air inlet duct, which can be switched on if necessary, in which the air flow takes a less curved course than in the air inlet to the turbine itself ( inertial separator ). Due to their inertia , foreign bodies preferentially enter this alternative channel, where they do not cause any damage. The contaminated air is discarded, causing a certain decrease in performance. For this reason, the particle separator is only switched on if the respective circumstances require it.

Web links

Description Triz Journal , February 1999 , accessed August 12, 2008

Individual evidence

↑ Willy JG Bräunling: Aircraft engines: Fundamentals, aero-thermodynamics, ideal and real cycle processes, thermal turbo machines, components, emissions and systems. 4th edition. Springer, Berlin, Heidelberg 2015, ISBN 978-3-642-34538-8 , p. 179 f.
↑ Hans Rick: Gas turbines and aircraft propulsion: Fundamentals, operating behavior and simulation. Springer-Verlag Berlin Heidelberg 2013, ISBN 978-3-540-79445-5 , p. 275 f.

[1] Willy JG Bräunling: Aircraft engines: Fundamentals, aero-thermodynamics, ideal and real cycle processes, thermal turbo machines, components, emissions and systems. 4th edition. Springer, Berlin, Heidelberg 2015, ISBN 978-3-642-34538-8 , p. 179 f.

[2] Hans Rick: Gas turbines and aircraft propulsion: Fundamentals, operating behavior and simulation. Springer-Verlag Berlin Heidelberg 2013, ISBN 978-3-540-79445-5 , p. 275 f.