초록 ▼

Hot compressed air is bled from the compressor of an engine and a portion of it is directed through a flow through type indirect heat exchanger of ring form located within an annular chamber in the engine cowl which is partially formed by lip surfaces of the inlet. Such air gives up heat to low pres

Hot compressed air is bled from the compressor of an engine and a portion of it is directed through a flow through type indirect heat exchanger of ring form located within an annular chamber in the engine cowl which is partially formed by lip surfaces of the inlet. Such air gives up heat to low pressure air within such chamber which carries the heat to the inlet surfaces. The compressed air is then removed from the heat exchanger and is admixed with additional hot compressed air. A part of the mixture is delivered to a wing TAI subsystem and a second portion is used for cabin conditioning and pressurization.

대표청구항 ▼

A pneumatic service system aboard an airplane, comprising: a source of hot compressed air; a first region requiring heat for combating ice formation including a flow through heat exchanger means having an inlet and an outlet; a second region requiring temperature conditioned compressed air; an air m

A pneumatic service system aboard an airplane, comprising: a source of hot compressed air; a first region requiring heat for combating ice formation including a flow through heat exchanger means having an inlet and an outlet; a second region requiring temperature conditioned compressed air; an air mixing station; first duct means delivering a first portion of the hot compressed air to the inlet of said heat exchanger means; second duct means delivering a second portion of the hot compressed air to the air mixing station; third duct means delivering air from the outlet of the heat exchanger means to the air mixing station; fourth duct means delivering mixed air from the air mixing station to said second region; wherein the first region requiring heat for combating ice formation is an engine inlet cowl having cowl wall means defining the leading edge portions of the inlet cowl and an internal wall defining with said cowl wall means an annular chamber inside the cowl; said heat exchanger means comprising circumferential tube means situated inside of said chamber through which the first portion of the hot compressed air flows; and means for circulating low pressure heat transfer air through the cowl chamber, said heat transfer air having a pressure that is lower than the pressure of said hot compressed air, for picking up heat from the first heat exchanger means and delivering it to the cowl wall means.