POWER SYSTEMS
    93.
    发明申请
    POWER SYSTEMS 审中-公开

    公开(公告)号:US20190140527A1

    公开(公告)日:2019-05-09

    申请号:US16184348

    申请日:2018-11-08

    Abstract: The invention relates to a power system that includes an electrical machine, (e.g., a motor or generator). The electrical machine has a stator with a stator winding connected to a power converter. The power system includes an assembly to reduce, and optionally eliminate, common mode currents between the electrical machine and the power converter. The assembly includes a stator frame connected to ground potential and an electrical insulator (e.g., a plurality of stator mounts) located between the stator frame and the stator.

    Propulsion unit for an aquatic vehicle having a mobile casing and a hydraulic fluid conditioning module

    公开(公告)号:US10179636B2

    公开(公告)日:2019-01-15

    申请号:US15497037

    申请日:2017-05-25

    Abstract: This propulsion unit for an aquatic vehicle consists of a mobile casing equipped with an azimuth bearing due to its mounting in a pivot connection in relation to a hull element of the aquatic vehicle, the azimuth bearing having a closed volume provided to contain a hydraulic fluid, the propulsion unit having a drive shaft of a propeller, said shaft being mounted rotatably within the mobile casing by means of at least one bearing having a closed space adapted to contain a hydraulic fluid, an electrical machine being adapted to drive the rotary drive shaft in relation to the mobile casing, the propulsion unit having a supply circuit adapted to supply the closed space of the shaft bearing with hydraulic fluid.The supply circuit has a supply duct connecting the closed space of the shaft bearing and the closed volume of the azimuth bearing.

    COVER AND PROCESS TO COVER A SECTION OF AT LEAST ONE ELECTRICAL CONDUCTOR

    公开(公告)号:US20180351340A1

    公开(公告)日:2018-12-06

    申请号:US15779997

    申请日:2016-11-28

    Abstract: The invention relates to a cover to enclose a longitudinal section of at least one electrical conductor and prevent the formation of an arc or a flashover. The cover has at least two cover parts made of an electrically insulating material. A first cover part and a second cover part each have at least one passage opening. Each passage opening has an electrical conductor guided through it, so that no gap opening, or only a small gap opening remains between the outside surface of the conductor and a bordering wall of the passage opening. Moreover, the cover has at least one connection location. At this connection location, two of the cover parts that are present lie against one another in a force-fit and/or positive-fit manner and form a nondestructively detachable connection. This ensures accessibility to the protected longitudinal section.

    Power distribution systems
    100.
    发明授权

    公开(公告)号:US09954393B2

    公开(公告)日:2018-04-24

    申请号:US15136580

    申请日:2016-04-22

    CPC classification number: H02J9/066 B63J3/02 H02J3/38 H02J9/00 H02M7/68

    Abstract: A power distribution system is described. The system includes a main ac busbar and an emergency ac busbar. A hybrid drive system includes an induction electrical machine and a prime mover, the rotor of the electrical machine and the driving end of the prime mover being mechanically coupled to a load by means of a mechanical linkage such as a gearbox. The system includes a first active rectifier/inverter having ac input terminals electrically connected to the main ac busbar, and dc output terminals. The system includes a second active rectifier/inverter having dc input terminals electrically connected to the dc output of the first active rectifier/inverter by a dc link, and ac output terminals electrically connected to the induction electrical machine. A blackout restart system includes a rectifier having ac input terminals selectively electrically connectable to the emergency ac busbar and dc output terminals selectively electrically connectable to the dc link.

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