公开(公告)号：US20210317783A1

公开(公告)日：2021-10-14

申请号：US16846377

申请日：2020-04-12

Applicant: Bell Textron Inc.

Inventor： Daniel Simpson ,  Tim Nobel ,  Mitchell Griffith ,  Henry Bredenkamp ,  Dave Loe ,  Paul Park

IPC: F02C7/057 ,  B64D33/02

Abstract: A rotatable nacelle includes an engine inlet configured to receive air and an inlet air management system (IAMS). The IAMS includes a primary inlet configured to selectively allow air to flow into a duct associated with the engine air inlet via the primary inlet and a secondary inlet configured to selectively allow air to flow into the duct associated with the engine air inlet via the secondary inlet. The secondary inlet is configured to receive an air filter.