Honeywell International Inc.

Alliedsignal Inc.

Peter C Collins

Michel A Jonqueres

Felipe A Fuentes

Jim A Emerick

Roger R Sanger

Stanley C Pollitt

Ronald E Crabtree

Thomas J Kazan

Systems, apparatus, and methods for the catalytic removal of at least one pollutant from an air stream via a catalytic precooler arranged in series with at least one augmentative catalytic device. The augmentative catalytic device may be located upstream or downstream from the catalytic precooler. The augmentative catalytic device may be integrated with the catalytic precooler, thereby eliminating the need for a separate housing and minimizing weight. Alternatively, the augmentative catalytic device may be disposed within a separate housing, thereby facilitating access for maintenance and decreasing direct maintenance costs.

Augmented catalytic heat exchanger system

An environmental control system includes a single heat exchanger, a single water separator and two air cycle machines on separate spools. Cooling turbines of the air cycle machines are cascaded. Air flows through both air cycle machines during normal operation of the environmental control system. If one of the air cycle machines fails, air can be bypassed around the failed air cycle machine. Cascading allows water separation to be performed by a mid-pressure water separator located between the air cycle machines.

Single package cascaded turbine environmental control system

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Foothill Ranch, CA, United States of America

Peter C Collins