Engine mounted inlet plenum for a rotorcraft

摘要

One example of an engine mounted inlet plenum (100) for a rotorcraft (401) includes an inlet flange (102), an outlet flange (104) and a plenum duct (110) that connects the inlet flange (102) and the outlet flange (104). The inlet flange (102), which defines an inlet to flow air into a barrier filtration system (116), is configured to be substantially aligned with a closed cowl door assembly (302) of the rotorcraft (401). In some implementations, the plenum duct (1100 is configured to extend to an outer mold line (OML) (112) of the rotorcraft (401) such that the inlet flange (102) is aligned with the OML (112). The outlet flange (104) defines an outlet to flow air filtered by the barrier filtration system (116) into an engine (106) of the rotorcraft (401). The plenum duct (110) allows air to flow from the inlet (102) to the outlet (104).