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公开(公告)号：US4521709A
公开(公告)日：1985-06-04
申请号：US415994
申请日：1982-09-08
摘要： In a rotating machine, for example heteropolar, auxiliary poles (14) are placed in practically the field poles (4) and close to the peripheral of a salient section (.delta.) of rotor (2), the same azimuth symmetry plane as the poles are supplied by a current (i) regulated by a power supply and auxiliary regulation device (16), the armature current (I) and rotation speed (N) of the rotor expose armature conductors (8) in commutation to an equalizing flux providing for arc-free commutation. Auxiliary poles can be supplied with a current regulated by the field current to cancel the currents flowing in the armature conductors on the field poles. These machines, for example also acyclic with voltage step-up, have high specific power and efficiency, and can be employed for example, in electric traction or propulsion.
摘要翻译： 在旋转机器中，例如异极的辅助极（14）实际上放置在场磁极（4）中并且靠近转子（2）的突出部分（delta）的周边，与极点相同的方位对称平面 由电源和辅助调节装置（16）调节的电流（i）供电，转子的电枢电流（I）和转速（N）将电枢导体（8）放电到均衡通量，提供 无弧换向。 辅助极可以通过励磁电流调节的电流来提供，以消除在场极上的电枢导体中流动的电流。 这些机器，例如也具有电压升压的非循环，具有高比功率和效率，并且可以用于例如电牵引或推进。
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公开(公告)号：US4347456A
公开(公告)日：1982-08-31
申请号：US166366
申请日：1980-07-07
摘要： Sliding electrical contact devices comprising a conducting track and a brush bearing on the track. The brush is formed by at least one bundle of stiff and very fine wires whose diameter is of about 40 microns, tightly retained in a sole piece 14, projecting from the sole piece and slidingly bearing on the track.
摘要翻译： 滑动电接触装置包括轨道上的导电轨道和刷轴承。 刷子由直径为约40微米的至少一束刚性和非常细的线形成，紧紧地保持在底部件14中，从鞋底件伸出并滑动地承载在轨道上。
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公开(公告)号：US4399381A
公开(公告)日：1983-08-16
申请号：US295194
申请日：1981-08-21
摘要： In a homopolar dynamoelectric machine in which a magnetic flux moves across a generally cylindrical clearance space between the stator and rotor, counterproductive magnetic fields produced by axial electric currents are avoided by providing, on the mutually confronting surfaces of the stator and rotor, nonmagnetic electrical conductors which are electrically insulated from the magnetic portions of the stator and rotor. The conductors are connected together electrically by contacts, providing an electrically conductive loop which encloses no magnetic members. Leads from the electrically conductive loop may be connected to an external circuit.The electrical conductors in one embodiment are of solid cylindrical shape, and in other embodiments are formed of spaced bars as in a squirrel cage. When spaced bars are used, the bars on one member are axially oriented and the bars on the other member are arranged in two sets which are equally but oppositely inclined to the machine axis.The preferred structure has a clearance space in the form of two truncated cones, the small diameter ends of which intersect at the longitudinal center of the apparatus. The longitudinal ends of this space terminate in inwardly concave sections for an electrically conductive liquid metal. During starting, the entire clearance space in filled with liquid metal; and, during operation, liquid is expelled from the clearance space except for the concave sections.
摘要翻译： 在其中磁通量穿过定子和转子之间的大致圆柱形间隙的同极电动机中，通过在定子和转子的相互面对的表面上设置非磁性电导体来避免由轴向电流产生的反作用磁场 它们与定子和转子的磁性部分电绝缘。 导体通过触点电连接在一起，提供不包含磁性构件的导电环路。 来自导电回路的引线可以连接到外部电路。 在一个实施例中的电导体是实心圆柱形的，并且在其它实施例中，如在鼠笼中那样由间隔开的条形成。 当使用间隔的杆时，一个构件上的杆被轴向定向，并且另一个构件上的杆被布置成两组，其相同地但相对于机器轴线倾斜。 优选的结构具有两个截锥体形式的间隙空间，其小直径端在装置的纵向中心相交。 该空间的纵向端部终止于用于导电液体金属的向内凹的部分。 启动过程中，整个间隙充满液态金属; 并且在操作期间，除了凹部之外，液体从间隙空间排出。
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