Acoustic controlled ice deflecting auxiliary power unit inlet system
US10252811B2 · kind B2 · utility
3Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2014 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Dec 5, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D2033/0233
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An auxiliary power unit for an aircraft includes a turbine engine. An inlet includes an opening and a passageway between the opening and the turbine engine. An acoustic splitter is supported within the passageway for attenuating noise within the inlet. An inlet door is movable between a closed position and a fully open position. A portion of the inlet door aligns with a part of the passageway in at least a first position and divides the passageway to deflect ice and noise in at least a second position. An air inlet and a method are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.