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公开(公告)号：EP3868666A1
公开(公告)日：2021-08-25
申请号：EP21154879.7
申请日：2021-02-02
发明人： KUMAGAI, Gary , KANG, Alan , AGNIS, Amber , CASTELLANOS, Estevan
摘要： This disclosure describes techniques for increasing wetting current for an electromechanical switch. In one example application, an aircraft (240) may include one or more valves (226-232) used to control the temperature of aircraft interior (203, 205, 206, 208, 210). The valves may include one or more valve position switches (242, 244, 246, 248, 250) to indicate certain valve positions, e.g. fully open, fully closed, fifty percent open, and so on. In some examples, the valve position switches may receive current at electromechanical contacts of the switch that is less than the wetting current. The techniques of this disclosure provide additional wetting current at the time the switch contacts close to improve reliability of the valve position switches. In some examples, an analog to digital converter circuit may be configured to provide the additional wetting current to the switch.
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公开(公告)号：EP4095370A1
公开(公告)日：2022-11-30
申请号：EP22173756.2
申请日：2022-05-17
发明人： BRILEY, Ara , KUMAGAI, Gary , ABEL, Micah S.
摘要： A bleed system including control circuitry and a variable jet pump. The control circuitry is configured to receive a signal indicative of a fluid parameter in the bleed system and cause the jet pump to alter a mixing ratio of a higher pressure gas and a lower pressure gas based on the signal. The jet pump is configured to combine the lower pressure gas and the higher pressure gas in the mixing ratio to generate a mixed gas. The jet pump is configured to supply the mixed gas to one or more gas loads in the bleed system. In examples, the control circuitry is configured to establish a system setpoint for the fluid parameter based on an operating status of the one or more gas loads.
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公开(公告)号：EP4290064A1
公开(公告)日：2023-12-13
申请号：EP23177694.9
申请日：2023-06-06
发明人： LAMB, Robert , KUMAGAI, Gary , GODDARD, Steven
IPC分类号： F02C6/08
摘要： A bleed system including control circuitry and a variable jet pump. The control circuitry is configured to receive a signal indicative of a fluid parameter in the bleed system and cause the jet pump to alter a mixing ratio of a higher pressure gas and a lower pressure gas based on the signal. The jet pump is configured to combine the lower pressure gas and the higher pressure gas in the mixing ratio to generate a mixed gas. The jet pump is configured to supply the mixed gas to one or more gas loads in the bleed system. In examples, the control circuitry is configured to establish a system setpoint for the fluid parameter based on an operating status of the one or more gas loads.
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公开(公告)号：EP4074951A1
公开(公告)日：2022-10-19
申请号：EP22168248.7
申请日：2022-04-13
发明人： LIPPOLD, Timothy , ISELLA, Giorgio C. , DRYSDALE, Bryce , KUMAGAI, Gary , O'BRIEN, Thomas , MCCABE, Niall
IPC分类号： F02C1/05 , F02C6/12 , F02K5/00 , H01M8/04111 , F02B37/04
摘要： A system configured to compress air to be used by a power generation system includes a first compressor stage configured to be driven by exhaust air from the power generation system and a second compressor stage configured to be driven by electrical power generated by the power generation system.
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公开(公告)号：EP4006675A1
公开(公告)日：2022-06-01
申请号：EP21208025.3
申请日：2021-11-12
发明人： KIM, Kyusung , SHAO, Qingqiu Ginger , ARAKI, Roy , DONG, Bin , LI, Qi , KUMAGAI, Gary
摘要： An example system for determining a performance status of an environmental control system (ECS) in a vehicle includes memory and processing circuitry. The processing circuitry is configured to determine, based on one or more of the aircraft data, the weather data, or the trending data, an estimated compressor exit temperature. The processing circuitry is configured to determine a current residual compressor exit temperature based on the estimated compressor exit temperature and a current compressor exit temperature. The processing circuitry is configured to determine whether a residual condition is met based at least in part on the residual compressor exit temperature and whether a pack condition is met based at least in part on a pack temperature. The processing circuitry is configured to provide an indication of the performance status of the ECS based on at least one of the residual condition or the pack condition being met.
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6.发明公开
公开(公告)号：EP3719602A1
公开(公告)日：2020-10-07
申请号：EP20167846.3
申请日：2020-04-02
发明人： SHAO, Qingqiu , KUMAGAI, Gary , DONG, Bin , KIM, Kyusung , SINGHAI, Mohit
摘要： According to certain aspects of the disclosure, a computer-implemented method may be used for detecting health status of an environmental control system. The method may include receiving aircraft data of an aircraft and receiving flight data of an aircraft. Calculating a predicted performance of the aircraft based on the received aircraft data and the received flight data and generating at least one model scalar or residual, wherein the at least one model scalar or residual is generated based on the aircraft data of the aircraft. Identifying at least one pattern from the at least one model scalar or residual and classifying the at least one pattern into at least one of a plurality of classifications. Identifying a failure of modes or components from the classifications and transmitting a maintenance report once the failure of modes or components is identified.
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