Patent ID: 11858641
Assignee: THE BOEING COMPANY
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 15:
16. An aircraft comprising:
a fuselage including a crown region separated from a cabin region by at least a cabin ceiling structure;
a mixer configured to generate a mixed airflow;
a riser duct disposed within the fuselage and extending between at least the crown region and a first region of the fuselage, wherein the riser duct receives the mixed airflow;
one or more first vents disposed in the crown region and coupled to the riser duct, the one or more first vents configured to receive a first portion of the mixed airflow from the riser duct;
one or more second vents disposed in the cabin region and coupled to the riser duct, the one or more second vents configured to receive a second portion of the mixed airflow from the riser duct; and
one or more on-board air sources coupled to the riser duct and configured to, during operation in a drying mode, route the first portion of the mixed air through the riser duct from the first region of the fuselage to the crown region and the second portion of the mixed airflow to the cabin region via the one or more first vents and the one or more second vents, and configured to, during operation in a normal mode, route the second portion of the mixed air through the riser duct to the cabin region via the one or more second vents without provision of the first portion of the mixed air to the crown region via the one or more first vents.