The Boeing Company

David William Olson

Sonny Keever Nguyen

Douglas Dean Maben

Christopher E Plass

Scott Peterson Ellsworth

Mark M Gmerek

Bryce A Van Dyke

Xin Han

Greta Grace Hadford

Rachel Ann Bires

James Julius Koch

Apparatuses, systems, and methods comprising acoustically absorptive air ducts comprising an internally positioned structure component as an endoskeleton and an air impervious inner layer, and an acoustically absorptive foam outer layer, environmental control systems comprising such air ducts, and vehicles incorporating such environmental control systems are disclosed with methods for manufacture and installations are disclosed.

Acoustic air duct for environmental control system in vehicle

An apparatus and system and method for mixing airflow and draining condensate in a duct exposed to sub-freezing air are disclosed. An example mixing duct apparatus includes a recirculation duct and a pack duct having a first end and a second end. The first end of the pack duct is coupled to a side of the recirculation duct. The pack duct has a lip that extends into an airflow passage defined by the recirculation duct. This lip defines a flow channel for condensate in the recirculation duct to flow beneath sub-freezing air entering the recirculation duct from the pack duct to decrease ice build-up in the pack duct.

Apparatus for drainage of condensate in mixing duct exposed to sub-freezing air

Growing community of inventors

Gold Bar, WA, United States of America

David William Olson