The present invention provides a ram air switch valve for an aircraft environmental control system and an aircraft environmental control system, the ram air switch valve comprising: an outer shell and an inner tube disposed in the outer shell, the outer shell having a ram air inlet tube from which ram air can enter the outer shell, an air entraining opening is formed in the position, opposite to the ram air inlet pipe, of the inner pipe, a one-way valve is arranged at the air entraining opening, and the one-way valve can open the air entraining opening after the pressure at the air entraining opening is larger than preset pressure; the effective flow area S of the air entraining opening is equal to nLaLb; and the opening load Q of the one-way valve is equal to KS delta rho g. According to the invention, the valve can be opened in a flight state and can be closed in a ground state, so that the effectiveness and the stability of the use of the one-way valve are ensured, and the safety and the reliability of the operation of the whole aircraft environment control system are improved.
本发明提供用于飞机环控系统的冲压空气转换活门和飞机环控系统,冲压空气转换活门包括:外壳和内管,所述内管设置于所述外壳中,所述外壳具有冲压空气入口管,冲压空气能够从所述冲压空气入口管进入所述外壳中,所述内管上与所述冲压空气入口管相对的位置设置有引气口,所述引气口处设置有单向活门,所述单向活门能在所述引气口处的压力大于预设压力后打开所述引气口;并有:所述引气口的有效流通面积:S=nLaLb;所述单向活门的开启载荷:Q=KSδρg。根据本发明能够保证飞行状态下能够打开活门,地面状态下能够关闭活门,保证单向活门使用的有效性及稳定性,提高整个飞机环控系统运行的安全性和可靠性。
Ram air conversion valve for aircraft environment control system and aircraft environment control system
用于飞机环控系统的冲压空气转换活门和飞机环控系统
17.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |
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