|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||62/086 ; 62/172 ; 62/401 ; 62/DIG.5|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 15 인용 특허 : 11|
An environmental control system includes a single heat exchanger, a single water separator and two air cycle machines on separate spools. Cooling turbines of the air cycle machines are cascaded. Air flows through both air cycle machines during normal operation of the environmental control system. If one of the air cycle machines fails, air can be bypassed around the failed air cycle machine. Cascading allows water separation to be performed by a mid-pressure water separator located between the air cycle machines.
[ What is claimed is:] [1.] An environmental control system comprising:a first air cycle machine including a first cooling turbine;a second air cycle machine including a second cooling turbine, cooling turbine being cascaded with the first cooling turbine, the second cooling the first and second air cycle machines being on separate spools; andmeans for operating only the first air cycle machine during a first mode of operation, operating only the second air cycle machine during a second mode of operation, and operating both air cycle machines during a th...