The Boeing Company

Stuart William Vogel

Jack William Mauldin

Justin Honshune Lan

Daniel James Kane

Haisan K Trinh

Richard L Stark

Alejandro Silva

Robert L Cohen

Ananthram Kota Shashidhar

Hoa V Truong

Michael W Kass

Andrew T Gilmore

Paul D Whitmore

John Ybarra

Robert T Breister

A nacelle inlet is provided for a turbo-fan engine for an aircraft. The nacelle inlet includes a lip skin having first and second pad-ups, an inner barrel including a forward flange and a bulkhead. The bulkhead, the lip skin and the inner barrel are attached together at mating surfaces. The bulkhead and the lip skin are attached together at mating surfaces. Each mating surface defines a surface geometry which approximates a developable surface having parallel ruling lines. The developable surfaces are formed by machining.

Nacelle inlet lip skin with pad-up defining a developable surface having parallel ruling lines

An aircraft engine anti-icing barrier assembly having a slip joint subassembly, a barrier subassembly, and a vapor barrier subassembly. The slip joint subassembly has a forward end for fixed attachment at a forward bulkhead of an aircraft engine, and has an aft end having a sliding joint. The barrier subassembly is attached to an aft side of an aft bulkhead and inserted through the aft bulkhead. The barrier subassembly has two mount pads with an upper mount pad and a lower mount pad configured for joined sealed attachment around the slip joint subassembly to form a barrier between an engine fan case compartment and an aft compartment in an engine inlet. The vapor barrier subassembly is attached to the aft side of the aft bulkhead and adjacent the barrier subassembly, has a boot element and a boot element retainer, and forms a vapor barrier to the slip joint subassembly.

Aircraft engine anti-icing (EAI) barrier assembly, system and method

Systems and methods for acoustic feedback or resonance mitigation are provided. The systems and methods include an exhaust acoustic noise reduction apparatus having an exhaust port comprising an exhaust aperture, a first vane extending at least partially across the exhaust aperture, and a second vane extending at least partially across the exhaust aperture and intersecting the first vane, such that the first and second vanes are oriented to interfere with formation of an acoustic feedback loop and reduce an acoustic noise signature of the exhaust port.

Systems and methods for acoustic resonance mitigation

Growing community of inventors

Long Beach, CA, United States of America

Stuart William Vogel