Cyclonic dirt separator for high efficiency brayton cycle based micro turbo alternator

    公开(公告)号:US10731557B1

    公开(公告)日:2020-08-04

    申请号:US16389249

    申请日:2019-04-19

    摘要: An electrical power generation system includes a micro turbo alternator having combustion chamber, a turbine driven by combustion gases from the combustion chamber and a compressor operably connected to the combustion chamber to provide a compressed airflow thereto. A permanent magnet generator is located along a shaft connecting the compressor and turbine such that electrical power is generated via rotation of the shaft, and a cyclonic dirt separator operably connected to a compressor inlet. The cyclonic dirt separator includes an air inlet, and an air exhaust disposed at opposing ends of a housing. The cyclonic dirt separator is configured to induce circumferential rotation into the airflow entering through the air inlet, and separate the airflow into a clean airflow and a relatively dirty airflow, such that the relatively dirty airflow flows through the air exhaust and the clean airflow is directed to the compressor inlet.

    Power extraction system and method for a gas turbine engine of a vehicle

    公开(公告)号:US10526975B2

    公开(公告)日:2020-01-07

    申请号:US15365932

    申请日:2016-11-30

    摘要: A power extraction system and method for a gas turbine engine of a vehicle are provided. The system has an HP spool tower shaft coupled between an HP spool of the gas turbine engine and an accessory gearbox assembly coupled to the gas turbine engine. The HP spool tower shaft extracts mechanical power from the HP spool. The system has an LP spool tower shaft coupled between an LP spool of the gas turbine engine and the accessory gearbox assembly. The LP spool tower shaft extracts mechanical power from the LP spool. The system further has the accessory gearbox assembly having an accessory drive combining the mechanical power from both the HP spool and LP spool, having a planetary gear train coupled to the accessory drive, and having one or more engine-driven accessories coupled to the planetary gear train and driven by a planetary gear train output to generate power.

    Method of Launching a Spacecraft into Low Earth Obit Using a Non-Line-Of-Sight Optical Power Transfer System

    公开(公告)号:US20190056554A1

    公开(公告)日:2019-02-21

    申请号:US16171167

    申请日:2018-10-25

    摘要: A method of launching a spacecraft into low Earth orbit using a non-line-of-sight optical power transfer system. The method includes generating optical power at a base station and using an optical fiber to transmit the optical power generated to a launch vehicle via an actively cooled fiber spooler thereon. The optical power received by the launch vehicle is converted to another form of energy usable by the launch vehicle. The optical power is optically focused into a reaction chamber to impinge on a refractory target. A working fluid is regeneratively fed to a heat exchanger contained within the actively cooled fiber spooler. The working fluid is pre-heated within the heat exchanger and injected into the reaction chamber where the working fluid heats and expands. The exhaust is channeled through a rocket nozzle to produce thrust. In an alternative embodiment, the optical fiber expended during launch of a spacecraft is recovered.

    AIRCRAFT INCORPORATING A THRUST RECOVERY SYSTEM USING CABIN AIR

    公开(公告)号:US20190017399A1

    公开(公告)日:2019-01-17

    申请号:US16034548

    申请日:2018-07-13

    摘要: An aircraft incorporating a cabin air recovery system in which the aircraft comprises a pressurizable cabin, main turbofan engines, each turbofan engine having fan blades, a gas turbine coupled with the fan blades and a by-pass duct bypassing the gas turbine. The cabin fluidly communicates with the by-pass duct downstream of the fan blades so that, during operation, cabin outflow air is discharged into the by-pass duct downstream of the fan blades. By re-utilizing excess cabin air, engine thrust and efficiency is improved, and fuel consumption is reduced.