公开(公告)号：US20240400219A1

公开(公告)日：2024-12-05

申请号：US18327965

申请日：2023-06-02

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Bruce Bouldin ,  Adam Kowal

IPC: B64D33/02 ,  B64D41/00

Abstract: An inlet system for an auxiliary power unit includes an inlet duct, and a frame coupled about the inlet duct. The frame defines an opening configured to be in fluid communication with the inlet duct. The inlet system includes a door having a first end opposite a second end. The door is coupled to the frame at the second end. The door is configured to move relative to the frame between a first position in which the door cooperates with the frame to inhibit airflow into the inlet duct and a second position in which the door is configured to enable the airflow into or out of the inlet duct. The door defines a ramp at the second end. A hook is spaced a distance apart from the ramp to define a gap configured to enable the airflow into or out of the inlet duct in the second position.

公开(公告)号：US12275533B2

公开(公告)日：2025-04-15

申请号：US18327965

申请日：2023-06-02

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Bruce Bouldin ,  Adam Kowal

IPC: F02C7/042 ,  B64D33/02 ,  B64D41/00

Abstract: An inlet system for an auxiliary power unit includes an inlet duct, and a frame coupled about the inlet duct. The frame defines an opening configured to be in fluid communication with the inlet duct. The inlet system includes a door having a first end opposite a second end. The door is coupled to the frame at the second end. The door is configured to move relative to the frame between a first position in which the door cooperates with the frame to inhibit airflow into the inlet duct and a second position in which the door is configured to enable the airflow into or out of the inlet duct. The door defines a ramp at the second end. A hook is spaced a distance apart from the ramp to define a gap configured to enable the airflow into or out of the inlet duct in the second position.