Aircraft engine assembly for controlling engine oil flow during fire conditions and method for using same
US12320296B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2023 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Sep 7, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D2045/009
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An assembly for an aircraft includes an aircraft housing, an auxiliary power unit (APU), an oil system, a door actuator, and a controller. The aircraft housing forms a compartment. The aircraft housing includes an intake door. The intake door is movable between a closed position, an open position, and intermediate positions between the closed position and the open position. The APU is disposed within the compartment. The APU includes an engine. The engine includes an air inlet and a rotational assembly. The oil pump is operatively connected to the rotational assembly. The door actuator is operatively connected to the intake door. The door actuator is operable to position the intake door in the closed position, the open position, and the intermediate positions to control an ambient air flow to the air inlet. The controller is operatively connected to the door actuator. The controller is configured to identify a fire condition within the compartment, identify a fire position of the intake door, and control the door actuator to position the intake door in the fire position. The fire position is one of the open position or the intermediate positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.