Unequal bleed flow
    31.
    发明授权

    公开(公告)号:US10814988B2

    公开(公告)日:2020-10-27

    申请号:US15175512

    申请日:2016-06-07

    Abstract: A system is provided. The system includes a first environmental control sub-system, operating in a first mode, that receives a first medium at a first flow amount and a first pressure. The system also includes a second environmental control sub-system, operating in a second mode, that receives a second medium at a second flow amount and a second pressure. The first flow amount is greater than the second flow amount, and the second pressure is greater than the first pressure.

    HEAT EXCHANGER BLOCKAGE DETECTION
    32.
    发明申请

    公开(公告)号:US20190285297A1

    公开(公告)日:2019-09-19

    申请号:US15925060

    申请日:2018-03-19

    Abstract: A system and method includes at least one heat exchanger, a ram fan, and a controller. The ram fan is driven by a motor. A motor control circuit is configured to provide power to the motor to drive the ram fan. The ram fan is configured to provide a ram flow through the at least one heat exchanger from a ram air inlet. The controller is configured to determine a blockage level of the at least one heat exchanger based on the power to the motor, a speed of the ram fan, and a temperature of the ram flow at the ram fan.

    Particle separation system
    33.
    发明授权

    公开(公告)号:US10369503B2

    公开(公告)日:2019-08-06

    申请号:US15176970

    申请日:2016-06-08

    Abstract: A particle separation device to remove particulate matter from an exterior air flow for use with an environmental control system includes a curved airflow path with an inner radius and an outer radius, the curved air flow path to receive the exterior air flow, a particle passage disposed along at least one of the inner radius and the outer radius to receive the particulate matter from the exterior air flow, a circumferential volute to receive the particulate matter from the particle passage, and a duct to transport the particulate matter from the circumferential volute to a downstream region.

    Method of predicting heat exchanger blockage via ram air fan surge margin

    公开(公告)号:US10346585B2

    公开(公告)日:2019-07-09

    申请号:US15049555

    申请日:2016-02-22

    Abstract: A method and system for predicting heat exchanger blockage in an aircraft is provided. The method includes generating a reduced order model (ROM) that predicts a ram air fan (RAF) surge margin that correlates to a heat exchanger blockage parameter, calculating, using the ROM, a predicted RAF surge margin value using a sensor signal received from a sensor connected to a ram air fan (RAF), calculating the heat exchanger blockage parameter using at least the predicted RAF surge margin value, and reporting, to a user, the heat exchanger blockage parameter that indicates when a heat exchanger blockage condition is present.

    REGENERATIVE SYSTEM ECOECS
    35.
    发明申请

    公开(公告)号:US20190135441A1

    公开(公告)日:2019-05-09

    申请号:US15802947

    申请日:2017-11-03

    Abstract: An environmental control system of an aircraft includes a ram air circuit with a ram air shell having at least one heat exchanger positioned therein, a dehumidification system arranged in fluid communication with the ram air circuit, a compression device arranged in fluid communication with the ram air circuit and the at least one dehumidification system, and an expansion device arranged in fluid communication with the ram air circuit. At least one of the compression device and the expansion device is selectively operable to supplement the ram air within the ram air circuit to meet a demand of the aircraft.

    Enhance motor cooling system and method

    公开(公告)号:US10184494B2

    公开(公告)日:2019-01-22

    申请号:US13930549

    申请日:2013-06-28

    Abstract: An Environmental Control System (ECS) for an aircraft includes a ram air system having a ram inlet and a ram outlet. The ECS includes a cabin air compressor motor, a diverter valve, and a dedicated outlet. The cabin air compressor motor has a motor inlet passage and a motor outlet passage with the motor inlet passage being coupled to the ram inlet. The diverter valve includes a first diverter inlet, a first diverter outlet, and a second diverter outlet. The first diverter inlet is coupled to the motor outlet passage. The dedicated outlet is connected to the first diverter outlet in a flight mode of operation of the aircraft and the ram outlet is connected to the second diverter outlet in a ground mode of operation of the aircraft.

    THREE WHEEL AND SIMPLE CYCLE AIRCRAFT ENVIRONMENTAL CONTROL SYSTEM

    公开(公告)号:US20190002109A1

    公开(公告)日:2019-01-03

    申请号:US15888737

    申请日:2018-02-05

    Abstract: An environmental control system of an aircraft includes a ram air circuit including a ram air shell having a plurality of heat exchangers positioned therein, the plurality of heat exchangers including a first heat exchanger, a second heat exchanger, and a third heat exchanger. The ram air circuit is configured and arranged so that a first medium received at the first heat exchanger passes through the first heat exchanger and then through the third heat exchanger and so that a second medium received at the second heat exchanger passes through the second heat exchanger. A compressing device is arranged in fluid communication with the ram air circuit.

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