Environmental control system bleed air is cooled by a heat exchanger. A fan pulls ambient air from a ram inlet duct across the at least heat exchanger and to an outlet. An air cycle machine drives the fan. The bleed air passes downstream of the at least heat exchanger to a compressor, and then drives a first stage turbine. The first stage turbine has an outlet communicating with a condenser, and then a second stage turbine. An icing control system taps hot air downstream of the compressor. An add heat valve is selectively moveable between a first position blocking flow from the tap passage. A second position where it passes air from the tap passage to the condenser inlet, and to a point downstream of the condenser and to the second stage turbine. In a third position, the valve only communicates air from the tap passage into the condenser.
This information is part of a study by Oasis Global, Inc. of all space inventions filed at the United States Patent and Trademark Office, and is provided for informational purposes only. It is not an endorsement of any particular assignee, inventor or invention. Although Peter A. Koziol represents inventors and assignees of space inventions he does not represent all of the inventors and assignees listed. The prosecuting attorney agent or firm for each patent is identified by the United States Patent and Trademark Office in the patent specfication, which can be viewed by clicking on the patent image or downloading the patent document. For more information regarding Mr. Koziol's background and experience, or to learn more about space inventions, please contact Mr. Koziol.
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