END TURN CONSTRUCTION FOR DYNAMOELECTRIC MACHINES.
    6.
    发明公开
    END TURN CONSTRUCTION FOR DYNAMOELECTRIC MACHINES. 失效
    卷绕头设计迪纳摩电机SMALL。

    公开(公告)号:EP0205616A4

    公开(公告)日:1987-06-09

    申请号:EP86901291

    申请日:1985-12-16

    CPC classification number: H02K3/505 H02K3/24 H02K9/197

    Abstract: In a dynamoelectric machine a disadvantageous feature is that coolant tends to find its way into an airgap between a rotor and a stator to cause friction and windage losses. This problem is solved by an end turn construction to improve cooling in the dynamoelectric machine and to axially reduce the size thereof. The machine includes a body (12) of magnetizable material having opposed ends (18), an opening (14) extending between the ends (18), and the plurality of slots (50) about the opening (14). A rotor (16) is disposed within the opening (14) and journalled for rotation therein and electric conductors (52) are located in the slots (50) and extend to ends (54, 56) just past the ends (18) of the body (12). End turns (58, 60, 62 and 68) each interconnect a predetermined pair of conductors (52) and extend substantially circumferentially and radially of the rotor axis with no appreciable extension axially of the axis.

    10.
    发明专利
    未知

    公开(公告)号:FR2517901B1

    公开(公告)日:1989-06-30

    申请号:FR8220481

    申请日:1982-12-07

    Abstract: This invention relates to a pulse width modulated inverter circuit having an output signal with reduced harmonic content. The inverter circuit includes a first circuit that provides a filtered fundamental pulse width modulated signal. A second circuit is electrically coupled to the first circuit to receive the signal and sum therewith a controlled signal and the filtered fundamental pulse width modulated signal. The second circuit thereby providing the output signal with reduced harmonic content.

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