RAM AIR FLOW MODULATION VALVE

摘要

An aircraft temperature control system to control a temperature of an environmental control system includes a ram inlet (106) in fluid communication with an external area of the aircraft, and a ram outlet (108) in fluid communication with an internal area of the environmental control system within the aircraft. A heat exchanger assembly (104) is interposed between the ram inlet (106) and the ram outlet (108). A ram air flow modulation valve (114) is disposed downstream from the heat exchanger, and is configured to operate in a plurality of positions to regulate airflow delivered to the ram outlet. An electronic valve control module (116) is in electrical communication with the ram air flow modulation valve and at least one temperature sensor (118). The electronic valve control module (116) is configured to output an electrical signal that adjusts a position of the ram air flow modulation valve based on a temperature value output from the at least one temperature sensor (118).