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    • 3. 发明申请
    • SPLIT RANGE CONTROL FOR PRESSURISATION
    • 用于压力的分段范围控制
    • WO2013025133A1
    • 2013-02-21
    • PCT/SE2011/050994
    • 2011-08-16
    • SAAB ABLIND, Ingela
    • LIND, Ingela
    • B64D37/10
    • B64D37/10B64D37/24B64D37/32Y10T137/0396Y10T137/2012Y10T137/3133Y10T137/6914
    • The invention aims at pressurising a volume (2) that needs to have a relative air pressure, in comparison with an ambient pressure, where the ambient air pressure can change rapidly and with large amplitude and where the access to pressurised air is limited. This is solved by a half open system comprising two parallel regulators (9) and (17) and two ejectors (15) and (19) working according to a split range control principle. When the relative air pressure difference is above a desired value of the second regulator (17), only the first regulator and the first ejector work. When the relative air pressure difference is below the desired value of the second regulator (17), both regulators (9) and (17) and ejectors (15) and (19) work. In this way the pressure inside the volume (2) can adapt rapidly to the changes in the ambient pressure, without leaking too much air during a static condition.
    • 本发明旨在将环境空气压力能够快速变化并且具有大幅度的变化以及对加压空气的进入受到限制的情况下,与需要具有相对空气压力的体积(2)加压。 这通过包括两个平行调节器(9)和(17)以及两个喷射器(15)和(19)的半开启系统来解决,该喷射器(15)和(19)根据分段控制原理工作。 当相对气压差高于第二调节器(17)的期望值时,仅第一调节器和第一排出器工作。 当相对气压差低于第二调节器(17)的期望值时,调节器(9)和(17)和喷射器(15)和(19)都工作。 以这种方式,体积(2)内的压力可以快速适应环境压力的变化,而不会在静止状态下泄漏太多的空气。
    • 4. 发明申请
    • AIRCRAFT FUEL TANK VENTILATION HAVING A DEHUMIDIFYING DEVICE
    • 具有除湿装置的飞机燃油箱通风
    • WO2011010123A1
    • 2011-01-27
    • PCT/GB2010/051131
    • 2010-07-09
    • AIRBUS OPERATIONS LIMITEDLAM, Joseph K-WPARMENTER, DavidMASTERS, Simon
    • LAM, Joseph K-WPARMENTER, DavidMASTERS, Simon
    • B64D37/10B64D37/32B64D37/34
    • B64D37/10B64D37/32B64D37/34Y10T137/86324
    • An aircraft fuel tank ventilation system comprising a dehumidifying device (17) disposed in flow communication between a vent (15) open to the atmosphere and a fuel tank (4,5). Also, a method of dehumidifying air introduced into an aircraft fuel tank via a ventilation system, the method comprising directing atmospheric air through a dehumidifying device disposed in flow communication between a vent of the ventilation system and the fuel tank, which removes water vapour from the air flowing from the vent towards the fuel tank. Also, a method of regenerating a desiccant medium (22) used to dehumidify air introduced into an aircraft fuel tank via a ventilation system, the method comprising directing air through the desiccant medium so as to dry the desiccant medium. By effectively removing water from air entering the aircraft fuel tank, the content of water in the fuel tank can be kept low, which improves fuel system component reliability, reduces maintenance activities, and reduces microbiological contamination.
    • 一种飞机燃料箱通风系统,包括在与大气开放的通风口(15)和燃料箱(4,5)之间流动连通地设置的除湿装置(17)。 此外,通过通风系统对引入飞机燃料箱的空气进行除湿的方法,所述方法包括:引导大气通过除湿装置,所述除湿装置设置在所述通风系统的通风口与所述燃料箱之间的流动连通中,该除湿装置从 从通风口向燃料箱流动的空气。 另外,一种再生干燥剂介质(22)的方法,所述干燥剂介质(22)用于通过通风系统对引入飞机燃料箱的空气进行除湿,所述方法包括将空气引导通过干燥剂介质以干燥干燥剂介质。 通过有效地从进入飞机燃料箱的空气中去除水分,燃料箱内的水分含量可以保持较低,从而提高燃油系统组件的可靠性,减少维护活动,减少微生物污染。