Patent ID: 7546981
Filing Date: 2009-06-16
Classification: B64C,B64D

Abstract:
1. A drain system for an aircraft, comprising: a mast arranged and operable to perform at least one of: (1) drawing ram air into the aircraft, and (2) draining liquids or gases from the aircraft, the mast further being operable to deliver the ram air to a thermal or electrochemical process being carried out on board the aircraft; a change-over valve operable to deliver cabin air to the thermal or electrochemical process alternatively or additionally to the ram air; an air compressor operable to compress air to be delivered to the thermal or electrochemical process; a pressure control unit operable to regulate the pressure of the air to be delivered to the thermal or electrochemical process; and a tubing containing a coolant; the tubing being positioned and operable to conduct a portion of the heat generated by the coolant to heat the mast; the tubing being further positioned and operable to deliver the coolant to the thermal or electrochemical process; and the tubing being further positioned and operable to conduct a portion of the heat generated by the thermal or electrochemical process to heat the coolant.