B - Operations – Transporting – 64 – D
Patent
B - Operations, Transporting
64
D
B64D 33/08 (2006.01) B64D 33/10 (2006.01) B64D 41/00 (2006.01)
Patent
CA 2703166
An auxiliary power unit (APU) assembly housed within a compartment of an aircraft including a compressor portion, a gas exhaust end, and an exhaust eductor in communication with the exhaust end of the APU. The eductor includes a nozzle disposed downstream of and in fluid communication with the APU exhaust end for receiving a gas exhaust flow from the APU in use. A mixing member in fluid communication with the nozzle and a source of secondary air is adapted to introduce secondary air into the gas exhaust flow. A bleed nozzle is in fluid communication with the APU compressor portion and the nozzle, and is adapted to introduce pressurized air from the compressor portion into the exhaust flow. The bleed nozzle introduces pressurized air into the nozzle at a position upstream of where the mixing member introduces secondary air into the nozzle.
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
Pratt & Whitney Canada Corp.
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