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    Rotor cooling system comprisng means for avoiding thermal unbalance in a liquid-cooled electrical machine
    1.
    发明授权
    Rotor cooling system comprisng means for avoiding thermal unbalance in a liquid-cooled electrical machine 失效
    转子冷却系统包含液体冷却电机中热不平衡的手段

    公开(公告)号：US3622820A

    公开(公告)日：1971-11-23

    申请号：US3622820D

    申请日：1970-09-21

    Applicant: ASEA AB

    Inventor： TJERNSTROM OVE

    IPC: H02K9/19 ,  H02K3/22

    CPC classification number: H02K3/22 ,  Y10T29/49012

    Abstract: In a liquid-cooled electric machine, a rotor-cooling system is provided for avoiding thermal unbalance. This includes a number of cooling channels which run axially in the rotor and a distribution chamber for coolant arranged outside of the coil ends of the rotor winding, to which the cooling channels are connected by tubes. Each tube passes in a liquid-type way through two opposed walls of the distribution chamber and has at least one opening between the walls into the interior of the chamber. The opening is in the form of an elongated slot and its size may be varied by a pistonlike member which can be adjusted longitudinally of the tube to cover more or less of the opening.

    Liquid cooled magnet coil for particle acceleration
    2.
    发明授权
    Liquid cooled magnet coil for particle acceleration 失效
    液体冷却磁体线圈用于粒子加速

    公开(公告)号：US3593242A

    公开(公告)日：1971-07-13

    申请号：US3593242D

    申请日：1968-07-11

    Applicant: ASEA AB

    Inventor： ANDERSSON ARNE ,  KLEIN HANS ,  TJERNSTROM OVE ,  RONNEVIG CARL

    IPC: H01F7/20 ,  H01F27/10 ,  H01F27/28 ,  H01F41/04

    CPC classification number: H01F7/202 ,  Y10T29/49004

    Abstract: A magnet coil for a particle accelerator is formed of a plurality of turns of a conductor each composed of two yokeshaped parts of conducting material containing a central metallic tube. The tube extends from each end of the parts. The parts are so positioned that the projecting tubes engage each other, where they are welded together. The inside tube is then tested. Conducting members are then placed around the tube in the gaps between the adjacent yoke-shaped parts and are welded to the conductor members. The whole unit is then embodied in insulation.

    Method and means for measuring the clamping force on transformer windings
    3.
    发明授权
    Method and means for measuring the clamping force on transformer windings 失效
    用于测量变压器绕组上的夹紧力的方法和装置

    公开(公告)号：US3929010A

    公开(公告)日：1975-12-30

    申请号：US51130274

    申请日：1974-09-30

    Applicant: ASEA AB

    Inventor： TJERNSTROM OVE

    IPC: G01L5/00 ,  H01F27/30

    CPC classification number: H01F27/303 ,  G01L5/00

    Abstract: For measuring the clamping force prevailing in the windings of a transformer which has windings mechanically clamped between clacks arranged in two clack rings which support the windings at their ends, clacks are provided forming columns of clacks in the windings over which the clamping force is to be measured. One of the clacks arranged in the clack rings is in contact with one of the outer clacks of each of the columns. One of the clacks in the clack ring is provided with a channel which opens into the area of contact between it and the column clack and to the outside. Liquid under pressure is supplied to this passage, and, when there is balance between the added pressure medium and the pressure medium leaking out in the area, the pressure is determined and a clamping force is derived from the measured pressure with the help of a calibration curve.

    Abstract translation: 为了测量在变压器的绕组中存在的夹紧力，该变压器的绕组被机械地夹在布置在两个支撑绕组端部的两个环形环之间的间隙之间，在绕组中形成有夹紧柱的夹紧力 测量。 布置在环形环中的一个环与每个柱的外部一个孔接触。 拾音环中的一个琴条设置有通道，该通道通向其与柱扣之间的接触区域和外部。 在该通道中供应压力的液体，并且当添加的压力介质和在该区域中泄漏的压力介质之间存在平衡时，确定压力并借助于校准从压力测量得到夹紧力 曲线。

    Damping winding for rotating pole system
    5.
    发明授权
    Damping winding for rotating pole system 失效
    用于旋转阀系统的阻尼绕组

    公开(公告)号：US3621315A

    公开(公告)日：1971-11-16

    申请号：US3621315D

    申请日：1969-12-04

    Applicant: ASEA AB

    Inventor： DALMO BROR ,  FRANKED JOHN ,  LANDHULT HANS ,  NORDBERG BIRGER ,  RONNEVIG CARL ,  TJERNSTROM OVE

    IPC: H02K3/16 ,  H02K3/20 ,  H02K3/24 ,  H02K19/26

    CPC classification number: H02K3/20 ,  H02K3/16 ,  H02K3/24

    Abstract: In a pole system which has damping winding slots, a damping winding is positioned in the slots. This winding is formed of damping rods of electrically conducting material and cooling tubes arranged in the slots. The damping rods are connected outside the slots by short-circuiting rings. Each damping window slot contains at least one cooling tube and two adjacent part conductors. Each part conductor has a groove therein, and a cooling tube or tubes are arranged in the grooves. The part conductors are held in position and wedges inserted into the slots are locked in position.

    Synchronous machine having salient rotor poles
    6.
    发明授权
    Synchronous machine having salient rotor poles 失效
    同步转子电机同步机

    公开(公告)号：US3610977A

    公开(公告)日：1971-10-05

    申请号：US3610977D

    申请日：1969-10-06

    Applicant: ASEA AB

    Inventor： DALMO BROR ,  FRANKED JOHN ,  LANDHULT HANS ,  TJERNSTROM OVE

    IPC: H02K3/22 ,  H02K3/52 ,  H02K9/00 ,  H02K1/32

    CPC classification number: H02K3/527 ,  H02K3/22 ,  H02K9/005

    Abstract: A synchronous machine includes a rotor ring with salient rotor poles each having a shoe portion and a core portion, with a plurality of gaps between the poles. Liquid cooled field windings are arranged in the gaps surrounding each of the poles. The shoe portions of the rotor poles overlap the gaps by at most 20 percent of the width of the gaps. Within the gaps are T-shaped support members which are keyed into the rotor and which have legs extending between the windings and crosspieces on the outside of the windings.

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