公开(公告)号：US4025960A

公开(公告)日：1977-05-24

申请号：US692046

申请日：1976-06-02

申请人： Alden J. Gray ,  Ian S. Sanderson ,  John C. Hardy

发明人： Alden J. Gray ,  Ian S. Sanderson ,  John C. Hardy

IPC分类号： H02K19/20

CPC分类号： H02K19/20

摘要： A variable reluctance electrical generator is disclosed having a unique structure which, for any given design parameters, tends to maximize air gap areas and thus minimize mmf drops thereacross. The mean magnetic flux paths all generally include a constant reluctance parasitic air gap and a variable reluctance active air gap. The portion of the magnetic circuit defining the active air gap is adapted to magnetically saturate before the portion of the magnetic circuit defining the parasitic air gap areas thus eliminating the parasitic air gap as a design limitation. In the exemplary embodiment the parasitic air gap is located radially outwardly of the active air gap areas such that the parasitic gap reluctance is much less than the minimum active gap reluctance. The design of the alternator is also such as to simplify its assembly during fabrication and to thereafter permit ready disassembly of its major components from one another for repair or other purposes.

摘要翻译： 公开了一种可变磁阻发电机，其具有独特的结构，对于任何给定的设计参数，趋向于使气隙区域最大化，从而使跨越的mmf最小化。 平均磁通路径通常包括恒定磁阻寄生气隙和可变磁阻主动气隙。 限定有源气隙的磁路的部分适于在限定寄生空气间隙区域的磁路的部分之前磁饱和，从而消除作为设计限制的寄生空气间隙。 在示例性实施例中，寄生气隙位于主动气隙区域的径向外侧，使得寄生间隙磁阻远小于最小有效间隙磁阻。 交流发电机的设计也可以简化其在制造过程中的组装，然后允许其主要组件彼此容易地拆卸以进行修理或其它目的。

公开(公告)号：US4096624A

公开(公告)日：1978-06-27

申请号：US797344

申请日：1977-05-16

申请人： Alden J. Gray ,  Ian S. Sanderson ,  John C. Hardy

发明人： Alden J. Gray ,  Ian S. Sanderson ,  John C. Hardy

IPC分类号： H02K19/20 ,  H02K15/14

CPC分类号： H02K19/20 ,  Y10T29/49009 ,  Y10T29/49073

摘要： A variable reluctance electrical generator is disclosed having a unique structure which, for any given design parameters, tends to maximize air gap areas and thus minimize mmf drops thereacross. The mean magnetic flux paths all generally include a constant reluctance parasitic air gap and a variable reluctance active air gap. The portion of the magnetic circuit defining the active air gap is adapted to magnetically saturate before the portion of the magnetic circuit defining the parasitic air gap areas thus eliminating the parasitic air gap as a design limitation. In the exemplary embodiment the parasitic air gap is located radially outwardly of the active air gap areas such that the parasitic gap reluctance is much less than the minimum active gap reluctance. The design of the alternator is also such as to simplify its assembly during fabrication and to thereafter permit ready disassembly of its major components from one another for repair or other purposes.

摘要翻译： 公开了一种可变磁阻发电机，其具有独特的结构，对于任何给定的设计参数，趋向于使气隙区域最大化，从而使跨越的mmf最小化。 平均磁通路径通常包括恒定磁阻寄生气隙和可变磁阻主动气隙。 限定有源气隙的磁路的部分适于在限定寄生空气间隙区域的磁路的部分之前磁饱和，从而消除作为设计限制的寄生空气间隙。 在示例性实施例中，寄生气隙位于主动气隙区域的径向外侧，使得寄生间隙磁阻远小于最小有效间隙磁阻。 交流发电机的设计也可以简化其在制造过程中的组装，然后允许其主要组件彼此容易地拆卸以进行修理或其它目的。

公开(公告)号：US4045718A

公开(公告)日：1977-08-30

申请号：US564638

申请日：1975-04-02

申请人： Alden J. Gray

发明人： Alden J. Gray

IPC分类号： H02J7/14 ,  H02K19/34 ,  H02M7/00

CPC分类号： H02J7/1423 ,  H02K19/34 ,  Y10T307/289

摘要： A multiple voltage electrical supply system continuously connected for individually charging a plurality of battery supplies continuously connected in series with one another to supply a plurality of load circuits having differing d.c. input voltage requirements and, typically, also having differing expected electrical power consumption rates. The system includes an alternator having electrically isolated generating windings disposed so as to insure that the magnetic flux linking each of the generating windings bears a substantially constant ratio to that linking the other of the generating windings. The exemplary embodiment has generating windings of different characteristic resistance per unit length such that there is an increased internal voltage drop in the winding intended to supply the lighter electrical load. The resultant voltage regulation characteristics are such that a single voltage regulator is sufficient to maintain both of the output voltages at a substantially constant predetermined ratio.

公开(公告)号：US5027108A

公开(公告)日：1991-06-25

申请号：US487830

申请日：1990-03-05

申请人： Alden J. Gray

发明人： Alden J. Gray

IPC分类号： G01R31/02

CPC分类号： G01R31/025

摘要： A method and a device for use with horizontal boring equipment or excavating equipment while making an underground tunnel or digging near known or unknown electric power lines. The device indicates contact with the electrical conductors, whether the contact is momentary or continuous, by monitoring voltage gradients in the earth and activating an alarm if voltage is sensed.

摘要翻译： 一种用于水平钻孔设备或挖掘设备的方法和装置，同时在已知或未知的电力线附近进行地下隧道或挖掘。 该装置通过监测地球中的电压梯度，并且如果感测到电压，则启动报警，指示与导体的接触，触点是瞬时的还是连续的。

公开(公告)号：US4905743A

公开(公告)日：1990-03-06

申请号：US271212

申请日：1988-11-14

申请人： Alden J. Gray

发明人： Alden J. Gray

IPC分类号： B67D1/12 ,  B67D3/04

CPC分类号： B67D1/1238 ,  B67D3/043

摘要： A valve and coacting control circuitry for filling variously sized and shaped receptacles to an exact settable level with a relatively high impedance fluid such as maple syrup. Errors caused by bubbles are avoided by controlling the flow rate through a shaped orifice for essentially laminar flow. Dripping is eliminated by shaping the exit orifice to prevent gravitational emptying of the faucet cavity when the valve is closed. Sensing of the fluid is accomplished with a flexible wire probe, not sensitive to the receptacle shape but may be adjusted to a desired height, connected to a sensitive electronic circuit with a very high input impedance which allows sensing a voltage through the high impedance fluid. Once started, the filling process need not be monitored by an operator who is then free to do other tasks.

摘要翻译： 阀和共同控制电路，用于用相对高阻抗的流体（例如枫糖浆）将各种尺寸和形状的容器填充到具有可精确设置的水平。 通过控制通过成形孔的流速基本上层流来避免由气泡引起的错误。 通过成形出口孔来消除滴落，以防止阀关闭时龙头腔的重力排空。 流体的感测是通过对容器形状不敏感的柔性线探头实现的，但是可以将其调节到期望的高度，连接到具有非常高的输入阻抗的敏感电子电路，其允许感测通过高阻抗流体的电压。 一旦开始，填充过程不需要由随后可以执行其他任务的操作者来监视。