Mixer and air pack for use in aircraft air supply system

摘要

A mixer, 22, has an internal bore with an inlet, 300, to a chamber, 301, and an outlet, 136, at an opposed end. A duct, 30, is connected to receive a recirculated air flow. The duct, 30, communicates air into the chamber, 301, through recirculating air ports, 32, such that the recirculating air, 17, can mix with the air, 34, from the inlet, 300. The mixer housing, 200, has a cockpit outlet, 138, for delivering air to a second outlet, with the cockpit outlet, 138, being located axially upstream from the recirculating air ports, 32. An isolator, 142, is mounted at an outer periphery of the mixer housing, 200, and has flat sides on each of two circumferentially spaced sides. A belly band, 40, is bolted to an outer periphery of the mixer housing, 200, and to flat sides, 44, of the isolator, 142.