Patent ID: 7044214
Filing Date: 2006-05-16
Classification: B60H,B64F

Abstract:
1. A temperature-controlled air supply system for use with an aircraft on the ground and for connection to a compressed air source, the air supply system comprising: a primary air flow passage having at least an inlet port and an outlet port, the inlet port coupled to receive a flow of primary air; a first heat exchanger having at least a first fluid flow path and a second fluid flow path, the first fluid flow path fluidly coupled in series with the primary air flow passage, the second flow path coupled to receive a flow of compressed air from the compressed air source, the first heat exchanger adapted to transfer heat between the primary air and the compressed air and supply at least conditioned compressed air; a plurality of flow control doors mounted on the primary air flow passage, each flow control door independently moveable between an open position and a closed position to control primary air flow through the primary air flow passage, whereby primary air flow through the first heat exchanger is controlled to thereby control conditioned compressed air temperature; a temperature sensor mounted downstream of the first heat exchanger second fluid flow path and operable to supply a temperature signal representative of the conditioned compressed air; a controller coupled to receive the temperature signal from the temperature sensor and operable, in response thereto, to supply door control signals; and a plurality of door actuators coupled to receive the control signals and operable, in response thereto, to independently move the flow control doors to control primary air flow through the primary air flow passage.