Separator having multiple particle extraction passageways

Abstract

A gas turbine engine utilizes a main and at least one auxiliary particle separator for enhancing the separation of foreign particles from a stream of air entering the engine. The engine includes interior walls which collectively define an engine intake passageway and a compressor inlet passageway in flow communication with the intake passageway so as to provide a primary flowpath for air traveling through the engine to the engine compressor. The main and auxiliary particle separators each include a passageway associated with a corresponding interior wall of the engine. Each separator passageway has an inlet opening to one side of the main flowpath and directed generally upstream of the primary flowpath so as not to appreciably effect the pressure loss through the engine. Furthermore, each separator passageway includes a section adjacent its inlet which is arranged relative to the primary flow path extending thereacross so as to facilitate the acceptance of an amount of air flowing along and adjacent the corresponding wall by the separators and thereby facilitate the acceptance of foreign particles entrained within the amount of air.

Dependencies are inferred from the claim text.