Thermally activated flow control device
AssigneeThe Boeing Company
InventorsDuk Woo Park, Matthew R. Muehlhausen
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Abstract
Systems, apparatuses and methods can provide for technology includes a turbofan engine subassembly having an inlet surface with a first side and a second side, and one or more flow effectors coupled to the inlet surface, wherein the flow effector(s) transition from a retracted position to an extended position on the second side of the inlet surface in response to an ambient temperature on the first side of the inlet surface exceeding a first threshold. The flow effector(s) may also transition from the extended position to the retracted position in response to the ambient temperature on the first side of the inlet surface falling below a second threshold.
Claims20
A turbofan engine subassembly comprising:
- an inlet surface including a first side and a second side;
- and
- one or more flow effectors coupled to the inlet surface, wherein the one or more flow effectors are to transition from a retracted position to an extended position on the second side of the inlet surface that extends through a bulkhead flange and a lip skin or edge band in response to an ambient temperature on the first side of the inlet surface exceeding a first threshold.
A method of assembling a turbofan engine subassembly, the method comprising:
- providing an inlet surface including a first side and a second side;
- and
- coupling one or more flow effectors to the inlet surface, wherein the one or more flow effectors are to transition from a retracted position to an extended position on the second side of the inlet surface that extends through a bulkhead flange and a lip skin or edge band in response to an ambient temperature on the first side of the inlet surface exceeding a first threshold.
A method of operating a turbofan engine subassembly, the method comprising:
- detecting, by one or more flow effectors coupled to an inlet surface, that an ambient temperature on a first side of the inlet surface has exceeded a first threshold;
- and
- transitioning, by the one or more flow effectors, from a retracted position to an extended position on a second side of the inlet surface that extends through a bulkhead flange and a lip skin or edge band in response to the ambient temperature on the first side of the inlet surface exceeding the first threshold.
Dependencies are inferred from the claim text.