Patent ID: 9416730
Filing Date: 2016-08-16
CPC Classification: B64D,F02C,F02K,F05D,Y02T

Claim Text:
1. An apparatus comprising: a passageway to fluidly couple an opening formed in a nacelle of an aircraft engine and an engine compartment of the nacelle, the opening to provide an inlet into the engine compartment when passive airflow is available to vent or cool the engine compartment and the opening to provide an outlet from the engine compartment when forced air is needed to vent or cool the engine compartment, the passive air to flow through the passageway in a first direction from the opening to the engine compartment; and a fan positioned in the passageway, the fan to provide the forced air when the passive air is unavailable, the fan to direct the forced air to flow through the passageway in a second direction from the engine compartment to the opening, the first direction being opposite the second direction.