SWITCHING DEVICE
    152.
    发明申请
    SWITCHING DEVICE 审中-公开

    公开(公告)号:US20190326082A1

    公开(公告)日:2019-10-24

    申请号:US16386674

    申请日:2019-04-17

    Applicant: ABB Oy

    Inventor: Fredrik Strand

    Abstract: A switching device including a frame, a roll element, a control shaft, a drive system and a roll spring. The control shaft is adapted to control rotation of the roll element such that rotating the control shaft from an ON-position to an OFF-position carries out an opening event in which the roll element transfers from a first position to a second position. The drive system includes an actuator and an actuator spring. The drive system is adapted to rotate the roll element during the opening event to an intermediate position located between the first position and the second position. The roll spring is connected between the frame and the roll element, and is adapted to rotate the roll element to the second position during the opening event.

    ELECTRICAL SWITCH
    153.
    发明申请
    ELECTRICAL SWITCH 审中-公开

    公开(公告)号:US20190326073A1

    公开(公告)日:2019-10-24

    申请号:US16385377

    申请日:2019-04-16

    Applicant: ABB Oy

    Abstract: An electrical switch. The electrical switch comprises at least one fixed contact, a movable contact contacting the fixed contact, and at least one extinguishing apparatus positioned after the fixed contact in an opening direction of the movable contact. A permanent magnet is further positioned after the extinguishing apparatus in the opening direction of the movable contact.

    Steering system, azimuthing propulsion system, and method for absorbing heat

    公开(公告)号:US20190016431A1

    公开(公告)日:2019-01-17

    申请号:US16078020

    申请日:2016-02-26

    Applicant: ABB Oy

    Abstract: According to an example aspect of the present invention, there is provided a steering system of an azimuthing propulsion system, the steering system comprising at least one hydraulic motor configured to operate an azimuthing system of a propulsion unit, the propulsion unit being arranged outside a vessel, a fluid cycle from the at least one hydraulic motor via a separate hydraulic overload protection unit and back to the motor, the overload protection unit comprises a pressure relief unit and a heat management unit, and wherein the pressure relief unit comprises a pressure relief valve, and the heat management unit comprises a heat storage, a heat exchanger, or a combination of both, and wherein the fluid cycle comprising the overload protection unit is configured to at least partially absorb heat generated during turning of the propulsion unit.

    Slewing seal arrangement for a propulsion unit

    公开(公告)号:US10160529B2

    公开(公告)日:2018-12-25

    申请号:US15310774

    申请日:2015-05-12

    Applicant: ABB Oy

    Abstract: The propulsion unit comprises a strut having an upper portion with an upper end portion passing through a passage formed between a first outer bottom and a second inner bottom in a vessel. The upper end portion is rotatable supported with a slewing bearing and sealed with a slewing seal. An upper slewing seal prevents lubrication medium leakage from the slewing bearing, whereby access to the upper slewing seal is provided in a radial direction from the interior of the vessel or from the interior of the strut in order to be able to service the upper slewing seal. A lower slewing seal is positioned at a vertical distance below the upper slewing seal and prevents sea water from penetrating into the hull of the vessel, whereby access to the lower slewing seal is provided in a radial direction from the interior of the vessel or from the interior of the strut in order to be able to service the lower slewing seal.

    Fan apparatus and cooled electrical assembly

    公开(公告)号:US09759219B2

    公开(公告)日:2017-09-12

    申请号:US14597881

    申请日:2015-01-15

    Applicant: ABB OY

    CPC classification number: F04D17/162 F04D17/16 F04D25/166 F04D29/4226

    Abstract: A fan apparatus is disclosed having a first fan and a second fan, both of which are centrifugal fans. Impellers of the first fan and the second fan can be located adjacent one another and adapted to rotate in opposite directions. A first outlet opening (ot1) provided on a housing of the first fan can be located relative to a second outlet opening (ot2) provided on a housing of the second fan such that a flow pattern of the first fan overlaps at least partially with a flow pattern of the second fan when viewed from a direction of a rotation axis of an impeller of the first fan.

    PROPULSION UNIT
    160.
    发明申请
    PROPULSION UNIT 审中-公开

    公开(公告)号:US20170233049A1

    公开(公告)日:2017-08-17

    申请号:US15350082

    申请日:2016-11-13

    Applicant: ABB Oy

    Inventor: Tomi Veikonheimo

    Abstract: A support strut has an upper end rotatable supported at a bottom of a vessel and a lower end supporting a casing. A first electric motor within the casing drives a propeller via a first shaft. An annular nozzle surrounds an outer perimeter of the propeller and is fixedly supported on the casing, with a support construction comprising at least three vanes extending in the radial direction between the outer perimeter of the casing and the inner perimeter of the nozzle. A duct for water flow is formed through the interior of the annular nozzle. The propeller pulls the vessel in a driving direction. The vanes are positioned after the propeller in the driving direction of the vessel, whereby the vanes are optimized for redirecting rotational flow components of the flow produced by the propeller into axial thrust.

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