Analysis of the Capability of the Plane Cabin Pressure Control System

That the air feed quantity of air system is too small,the gas leakiness is too big as the cabin tightnessless,and the aeration quantity is too big as the pressure regulator malfunction,which are three main factors to lead the pressure of cabin lower than the prospective value of the adjust law and to cause low pressure malfunctions of the cabin.The influence of the air feed quantity,the gas leakiness and the air feed quantity on the cabin pressure was analyzed,the pressure regulator ability and the causation of the malfunctions were explained and the ways and means to prevent and inspect the malfunctions of cabin pressure regulation were pointed out.