Pressure monitoring system for a fuel tank and method
    3.
    发明公开
    Pressure monitoring system for a fuel tank and method 审中-公开
    Drucküberwachungssystemfüreinen Kraftstofftank und Verfahren

    公开(公告)号:EP2805888A1

    公开(公告)日:2014-11-26

    申请号:EP14169516.3

    申请日:2014-05-22

    摘要: A pressure monitoring system (28) for a fuel tank (12) includes a supply line (16) fluidly coupling a fluid source (20) with at least one fuel tank (12) for supplying an inert gas (14) to the at least one fuel tank (12). Also included is a pressure relief valve (30) in communication with the supply line (16) configured to detect a pressure differential between a supply line pressure and an ambient pressure. Further included is a pressure sensor (32) configured to detect the supply line pressure. Yet further included is a controller (34) in operable communication with the pressure sensor (32) and the fluid source, wherein the controller (34) is configured to modify a flow rate of the inert gas (14) in the supply line (16) upon detection of the supply line pressure exceeding a predetermined pressure limit.

    摘要翻译: 一种用于燃料箱(12)的压力监测系统(28)包括将流体源(20)与至少一个燃料箱(12)流体联接以供至少至少一个惰性气体(14)的供应管线(16) 一个燃料箱(12)。 还包括与供应管线(16)连通的减压阀(30),其构造成检测供应管路压力和环境压力之间的压力差。 进一步包括被配置为检测供应管线压力的压力传感器(32)。 还包括与压力传感器(32)和流体源可操作地连通的控制器(34),其中控制器(34)被配置为修改供应管线(16)中的惰性气体(14)的流量 )检测到供应管线压力超过预定的压力极限。

    SPLIT RANGE CONTROL FOR PRESSURISATION
    4.
    发明公开
    SPLIT RANGE CONTROL FOR PRESSURISATION 有权
    遵循增压规则

    公开(公告)号:EP2744707A1

    公开(公告)日:2014-06-25

    申请号:EP11871042.5

    申请日:2011-08-16

    申请人: Saab AB

    发明人: LIND, Ingela

    IPC分类号: B64D37/10

    摘要: 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.

    A hydraulic damping apparatus
    5.
    发明公开
    A hydraulic damping apparatus 审中-公开
    HydraulischeDämpfvorrichtung

    公开(公告)号:EP2527254A2

    公开(公告)日:2012-11-28

    申请号:EP12167117.6

    申请日:2012-05-08

    申请人: Rolls-Royce plc

    发明人: Miller, David

    IPC分类号: B64D37/00 B64D37/10

    摘要: A hydraulic damping apparatus 2 comprising a conduit 4 for a hydraulic fluid having a port 12 in a wall of the conduit 4; a resonator 6 having a chamber 9 and a neck 10, the neck 10 being arranged to provide fluid communication between the chamber 9 and the port 12. The apparatus 2 further comprises a first pressure sensor 22 arranged to sense pressure in the conduit 4 upstream of the port 12, a second pressure sensor 24 arranged to sense pressure in the conduit 4 downstream of the port 12, and a controller 18 configured to determine the amplitude of a pressure fluctuation sensed by the first pressure sensor 22 and the amplitude of a pressure fluctuation sensed by the second pressure sensor 24. The controller 18 is further configured to vary a resonant frequency of the resonator 6 in accordance with a difference between the amplitude of the pressure fluctuation sensed by the first pressure sensor 22 and the amplitude of the pressure fluctuation sensed by the second pressure sensor 24.

    摘要翻译: 液压阻尼装置2包括用于液压流体的导管4,该导管4在导管4的壁上具有端口12; 具有腔室9和颈部10的谐振器6,颈部10设置成在腔室9和端口12之间提供流体连通。装置2还包括第一压力传感器22,其被布置成感测导管4中的压力 端口12,布置成感测端口12下游的管道4中的压力的​​第二压力传感器24以及被配置为确定由第一压力传感器22感测到的压力波动的幅度和压力波动的幅度的控制器18 控制器18还被配置为根据由第一压力传感器22检测到的压力波动的振幅与感测到的压力波动的振幅之间的差异来改变谐振器6的谐振频率 通过第二压力传感器24。

    A hydraulic damping apparatus
    8.
    发明公开
    A hydraulic damping apparatus 审中-公开
    液压阻尼装置

    公开(公告)号:EP2527254A3

    公开(公告)日:2017-07-12

    申请号:EP12167117.6

    申请日:2012-05-08

    申请人: Rolls-Royce plc

    发明人: Miller, David

    IPC分类号: B64D37/00 B64D37/10

    摘要: A hydraulic damping apparatus 2 comprising a conduit 4 for a hydraulic fluid having a port 12 in a wall of the conduit 4; a resonator 6 having a chamber 9 and a neck 10, the neck 10 being arranged to provide fluid communication between the chamber 9 and the port 12. The apparatus 2 further comprises a first pressure sensor 22 arranged to sense pressure in the conduit 4 upstream of the port 12, a second pressure sensor 24 arranged to sense pressure in the conduit 4 downstream of the port 12, and a controller 18 configured to determine the amplitude of a pressure fluctuation sensed by the first pressure sensor 22 and the amplitude of a pressure fluctuation sensed by the second pressure sensor 24. The controller 18 is further configured to vary a resonant frequency of the resonator 6 in accordance with a difference between the amplitude of the pressure fluctuation sensed by the first pressure sensor 22 and the amplitude of the pressure fluctuation sensed by the second pressure sensor 24.

    摘要翻译: 一种液压阻尼装置2,其包括用于液压流体的导管4,该导管在导管4的壁中具有端口12; 具有腔室9和颈部10的谐振器6,颈部10被布置成提供腔室9和端口12之间的流体连通。装置2还包括第一压力传感器22,该第一压力传感器22被布置为感测导管4中上游的压力 端口12,布置成感测端口12下游的管道4中的压力的​​第二压力传感器24以及配置成确定由第一压力传感器22感测到的压力波动的幅度和压力波动的幅度的控制器18 由第二压力传感器24感测。控制器18还被配置为根据由第一压力传感器22感测到的压力波动的幅度与感测到的压力波动的幅度之间的差来改变谐振器6的谐振频率 通过第二压力传感器24。

    AIRCRAFT FUEL TANK VENTILATION HAVING A DEHUMIDIFYING DEVICE
    9.
    发明公开
    AIRCRAFT FUEL TANK VENTILATION HAVING A DEHUMIDIFYING DEVICE 审中-公开
    通风飞机油箱除湿

    公开(公告)号:EP2456668A1

    公开(公告)日:2012-05-30

    申请号:EP10734299.0

    申请日:2010-07-09

    IPC分类号: B64D37/10 B64D37/32 B64D37/34

    摘要: 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.

    Ambient pressure-responsive variable volume fuel tank
    10.
    发明公开
    Ambient pressure-responsive variable volume fuel tank 有权
    响应于与可变容积的环境压力燃料箱

    公开(公告)号:EP2135805A3

    公开(公告)日:2012-03-21

    申请号:EP09157450.9

    申请日:2009-04-06

    IPC分类号: B64D37/10 B64D37/08 B64D37/16

    CPC分类号: B64D37/10 B64D37/08 B64D37/16

    摘要: An apparatus is provided for a fuel tank system for an air vehicle. The system comprises a container (100) having an interior adapted to hold fuel, the container comprising a first opening (112) placing the interior in fluid communication with the ambient atmosphere, and a volumetrically-adjustable sizing device (130) adapted to change volume in response to changes in surrounding air pressure, the sizing element (130) disposed within the container and adapted to contain a fluid.