Patent ID: 11878810
Assignee: THE BOEING COMPANY
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 9:
10. A method of utilizing an auxiliary power system to regulate a bleed air temperature (BAT) of a bleed air flow generated by an auxiliary power unit (APU), the method comprising:
compressing a load compressor airflow to generate the bleed air flow;
measuring the BAT with a BAT sensor;
generating a BAT signal with the BAT sensor, wherein the generating the BAT signal is based, at least in part, on the BAT; and
transmitting the BAT signal to an APU controller;
wherein the APU defines a bleed air outlet;
wherein the auxiliary power system is included within an aircraft that includes a bleed air consumer, which is configured to receive at least a subset of the bleed air flow from the APU, and a bleed air conduit, which is configured to convey the bleed air flow from the bleed air outlet to the bleed air consumer;
wherein the BAT sensor is positioned at a remote BAT location that is spaced-apart from the bleed air outlet of the APU;
wherein the method includes calculating a calculated BAT of the bleed air flow at a calculation location based, at least in part, on the BAT signal; and
wherein the calculation location is spaced-apart from the remote BAT location of the BAT sensor.