Honeywell International Inc.

Adam Kowal

Bruce Dan Bouldin

Vincent Doras

David Eugene Wilcox

Rob Robbins

Robert Robbins

Jim Lyells

Yogendra Y Sheoran

Marc Schmittenberg

Jeffrey Hein

Reha Gomuc

Jennifer Ann Reich

Vunnam Kiran

Marcos Alazraki

Jeff M Hein

Tony Brett

Larry Reese

Steve Harper

Yogendra Yogi Sheoran

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.

Inlet system for auxiliary power unit

A compartment based inlet particle separator system for an aircraft that includes an auxiliary power unit (APU) system compartment is provided. The system includes a separation barrier wall, a ram air inlet opening, a diffuser, and an inlet particle separator (IPS). The separation barrier wall is disposed within the APU system compartment and divides the APU system compartment into two compartments. The ram air inlet opening is formed one of the compartments. The diffuser receives ram air from a ram air inlet opening and discharges ram air into a compartment. The IPS is disposed within the a compartment between the diffuser outlet and the APU air inlet port.

Compartment based inlet particle separator system

Monolithic acoustically-treated composite structures and methods for fabricating the same are provided. A monolithic acoustically-treated composite structure comprises an internal frame assembly comprising a unitary composite frame structure and at least one acoustic panel assembly. The unitary composite frame structure defines a shape of the monolithic acoustically-treated composite structure to be fabricated. A composite overlay covers the internal frame assembly. The method for fabricating the monolithic acoustically-treated composite structure comprises forming the unitary composite frame structure, including the at least one acoustic panel in the unitary composite frame structure, and covering the internal frame assembly with the composite overlay.

Monolithic acoustically-treated composite structures and methods for fabricating the same

An insulation assembly for use with an APU having an exhaust muffler is disclosed herein. The insulation assembly includes, but is not limited to, a first insulating member that is configured for placement on a top portion of the exhaust muffler and a second insulating member attached to the first insulating member and configured for placement on a bottom portion of the exhaust muffler. The second insulating member is less resistant to heat transfer than the first insulating member.

Insulation assembly for use with an auxiliary power unit having an exhaust muffler

An inlet door system including an aft inlet duct mounted door actuator providing RAM air to an auxiliary power unit (APU) contained within an aircraft is provided. The inlet door system includes an inlet duct, the aft inlet duct mounted door actuator, and a door. The inlet duct is configured to extend from the auxiliary power unit to the aircraft housing and has a sidewall that defines a flow passage. The door actuator is mounted to an exterior surface of the aft portion of the inlet duct. The door is coupled to the actuator. The actuator is configured to selectively rotate the door between at least a first position and a second position.

AFT inlet duct mounted door actuator

A ram door assembly is provided for an intake opening of an intake duct of an auxiliary power unit of an aircraft. The ram door assembly includes a ram door hingeably mounted adjacent to the intake opening and moveable between an open position to a closed position. The ram door has an interior surface and an exterior surface. The ram door assembly further includes a fairing positioned on the interior surface of the ram door.

Ram door assemblies

Growing community of inventors

Phoenix, AZ, United States of America

Adam Kowal