The Boeing Company
Vehicle air conditioning pack with air cycle assembly

Abstract:

An air conditioning pack includes an air cycle assembly, a vapor cycle system, and a mixing duct. The air cycle assembly is configured to receive bleed air and utilize the bleed air to compress ram air. The vapor cycle system is configured to receive the compressed ram air and to reduce an operating temperature of the compressed ram air. The mixing duct is configured to receive the compressed ram air and mix the compressed ram air with the bleed air to generate a hybrid air stream that is used for cooling at least a portion of a vehicle.