Aircraft environmental control systems including airflow interleavers and methods for controlling airflow within aircraft

An airflow interleaver, comprising:

• a tubular body having an interleaver axis that extends positively in a downstream direction;
• a plurality of converging airflow guides that extend from the tubular body radially towards the interleaver axis;
• and
• a plurality of diverging airflow guides that extend from the tubular body radially away from the interleaver axis;
• and
• wherein the plurality of converging airflow guides are azimuthally interleaved with the plurality of diverging airflow guides, and wherein the plurality of converging airflow guides and the plurality of diverging airflow guides collectively are configured to interleave a plurality of first airflow streams flowing from the tubular body in the downstream direction with a plurality of second airflow streams flowing from a region external to the tubular body in the downstream direction to produce a mixed airflow therefrom.

A method of controlling a temperature of a cabin of an aircraft, the method comprising:

• channeling a first airflow from the cabin of the aircraft to a mix manifold;
• channeling a second airflow from an air cycle machine to the mix manifold;
• and
• mixing, with an airflow interleaver positioned within a mixing chamber of the mix manifold, the first airflow with the second airflow to produce a mixed airflow,
• wherein the mixing comprises:
• guiding, with the airflow interleaver, the first airflow away from a central axis of the mixing chamber;
• and
• guiding, with the airflow interleaver, the second airflow towards the central axis of the mixing chamber.