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公开(公告)号：US4665350A
公开(公告)日：1987-05-12
申请号：US825607
申请日：1986-01-31
摘要： The speed command for an open-loop brushless motor speed control system is overridden whenever the speed of the motor is less than a relatively low reference speed in order to quickly accelerate the motor to a running speed, despite a relatively low speed command. In the event of a motor overcurrent condition, the override is itself overridden to protect the controller.
摘要翻译： 只要电机的速度小于相对较低的基准速度，开环无刷电动机速度控制系统的速度指令就被覆盖，以便尽管速度相对较低，但也可以将电动机快速加速至运行速度。 在电机过电流情况下，超驰本身被覆盖以保护控制器。
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公开(公告)号：US4678972A
公开(公告)日：1987-07-07
申请号：US908730
申请日：1986-09-18
CPC分类号： H02P6/26
摘要： The stator winding of a single-phase brushless DC motor with symmetrical rotor and stator air gap geometry is comprised of two serially connected relatively displaced sections energized with a source of direct current in accordance with the rotary position of the motor rotor. In the run mode, the full winding is energized; in the start mode, one of the sections is momentarily short-circuited if the initial winding energization fails to produce sufficient torque for starting.
摘要翻译： 具有对称转子和定子气隙几何形状的单相无刷直流电动机的定子绕组包括根据电动机转子的旋转位置用直流电源供电的两个串联连接的相对位移部分。 在运行模式下，全绕组通电; 在启动模式下，如果初始绕组通电不能产生足够的启动转矩，则其中一个部分短暂地短路。
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公开(公告)号：US5000524A
公开(公告)日：1991-03-19
申请号：US518623
申请日：1990-05-03
申请人： Jack W. Savage
发明人： Jack W. Savage
CPC分类号： B60T8/4266 , H02K23/02
摘要： An electric motor-driven brake pressure modulator has an auxiliary field winding connected in series-parallel relationship with a permanent magnet field DC motor to produce different speed/torque performance characteristics depending on the direction of motor rotation. In forward motor rotation when the brake pressure is to be increased, the mmf of the auxiliary field winding aids the mmf of the field magnets to produce a higher flux density in the working air gap of the motor. This maximizes the torque characteristic of the motor for the development of adequate brake pressure. In the reverse direction of motor rotation when the brake pressure is to be decreased, the mmf of the auxiliary field winding opposes the mmf of the field magnets to lower the flux density in the working air gap of the motor. This maximizes the speed characteristic of the motor to quickly reduce the brake pressure.
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4.发明授权
公开(公告)号：US4761576A
公开(公告)日：1988-08-02
申请号：US943342
申请日：1986-12-19
申请人： Jack W. Savage
发明人： Jack W. Savage
CPC分类号： F04D25/06 , H02K1/16 , H02K1/26 , H02K29/08 , H02K2201/06
摘要： A motor driven air moving apparatus adapted to high speed, constant duty operation has a DC permanent magnet motor with a stator and rotor, one having a wound core with an even number of identically sized, evenly spaced teeth and the other having an even number of identically sized, permanent magnet poles. One of the rotor and stator has a skew at an angle from the axial, the maximum achievable skew being less than one tooth pitch due to short axial core width. A groove is provided along the midline of each of the teeth of the core which is parallel to and shallower than the tooth separating slots and contains no winding. The groove is effective to divide the tooth magnetically in half and thus decrease the effective tooth pitch, whereby, simultaneously, the magnetically induced pulsating angular velocity of the rotor and resultant audible noise are reduced and the system efficiency of the motor and air moving apparatus combination at high speeds in constant duty operation is increased.
摘要翻译： 适用于高速，恒功率运行的电动机驱动的空气移动装置具有带有定子和转子的直流永磁电动机，一个具有偶数个相同尺寸的均匀间隔的齿的缠绕芯，另一个具有偶数个 相同尺寸的永久磁极。 转子和定子中的一个具有与轴向成一角度的偏斜，由于较短的轴向芯宽度，最大可实现的偏斜小于一个齿距。 沿着芯的每个齿的中线设置凹槽，其平行于并且比齿分离槽更浅，并且不包含绕组。 凹槽有效地将磁齿分成两半，从而降低有效齿距，从而同时减小了转子的磁感应脉动角速度和合成的可闻噪声，并且电机和空气移动装置组合的系统效率 在高负载运行时的高速度增加。
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公开(公告)号：US4105371A
公开(公告)日：1978-08-08
申请号：US732927
申请日：1976-10-15
申请人： Jack W. Savage , Thomas J. Savage
发明人： Jack W. Savage , Thomas J. Savage
IPC分类号： F04B27/04 , F04B27/053 , F04B19/00 , F04B1/14
CPC分类号： F04B27/0423 , F04B27/0409 , F04B27/0414 , F04B27/053
摘要： A refrigerant compressor constructed for the addition of one or more pumping cylinders for the change of capacity. Improved mechanical efficiency is attained by means of a motor-driven eccentric cam imparting linear motion through one or more of the compressor pistons to the compression stroke and wherein the work to reciprocate each piston is assisted by dual out-of-phase compression springs. The cam is configured for producing a predetermined dwell-period when each piston reaches its bottom-dead-center position wherein a maximum gas charge will be inducted into the cylinder bore by the ram velocity effect of the inward moving gas stream. In a like manner the cam design provides piston dwell time at its top-dead-center position wherein an increased gas charge will be expelled per cycle resulting in increased volumetric efficiency.
摘要翻译： 一种制冷剂压缩机，其构造用于增加一个或多个泵送缸以改变容量。 借助于通过一个或多个压缩机活塞到压缩行程的线性运动的马达驱动的偏心凸轮来实现提高的机械效率，并且其中每个活塞往复运动的工作由双相异步压缩弹簧辅助。 凸轮构造成在每个活塞达到其下死点位置时产生预定的停留时间，其中通过向内移动的气流的冲击速度效应将最大气体进料量引入气缸孔中。 以类似的方式，凸轮设计在其上死点位置提供活塞停留时间，其中每循环将排出增加的气体进料量，从而提高体积效率。
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公开(公告)号：US4838762A
公开(公告)日：1989-06-13
申请号：US179691
申请日：1988-04-11
申请人： Jack W. Savage , Lloyd L. Kuck
发明人： Jack W. Savage , Lloyd L. Kuck
IPC分类号： F04D29/26
CPC分类号： F04D29/263
摘要： This fan cage is formed from a plastics material and locking, locator and drive devices integral with the cage and extend from one edge thereof into a "snap fit" connection with a motor driven rotor plate. With this construction, the fan cage can be readily removed from the rotor plate for inspection and replacement as required.
摘要翻译： 该风扇保持架由塑料材料和与保持架一体形成的锁定，定位器和驱动装置形成，并且从其一个边缘延伸到与马达驱动转子板的“卡扣配合”连接。 利用这种结构，可以根据需要容易地从转子板上移除风扇架进行检查和更换。
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公开(公告)号：US4694210A
公开(公告)日：1987-09-15
申请号：US891108
申请日：1986-07-31
申请人： James O. Elliott , Jack W. Savage
发明人： James O. Elliott , Jack W. Savage
CPC分类号： H02K1/2786 , H02K29/12 , H02K7/118 , H02P6/182 , H02P6/20
摘要： A resilient coupling between the rotor and output shaft of a brushless DC motor cooperates with a sensorless drive arrangement that obtains rotor position information from the voltage induced in the stator windings of the motor to reduce the effective inertia of the load and aid in starting of the motor.
摘要翻译： 无刷直流电动机的转子和输出轴之间的弹性耦合与无传感器驱动装置配合，该装置从电动机的定子绕组中感应出的电压获得转子位置信息，以减少负载的有效惯性并辅助起动 发动机。
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8.发明授权
公开(公告)号：US4659951A
公开(公告)日：1987-04-21
申请号：US829488
申请日：1986-02-14
CPC分类号： H02K9/06 , F04D29/584 , H02K29/08 , H02K7/14
摘要： The control circuitry of a brushless blower motor is mounted on the stator of the motor and is cooled during operation of the blower by a portion of the air moved by the blower. A rotor cup member which covers and protects the control circuitry has at least a pair of radially displaced openings formed therein, and air is conveyed through the openings due to an air pressure differential therebetween created by the movement of air by the blower.
摘要翻译： 无刷风扇马达的控制电路安装在电动机的定子上，并在由鼓风机移动的空气的一部分在鼓风机操作期间被冷却。 覆盖和保护控制电路的转子杯构件具有形成在其中的至少一对径向位移的开口，并且空气由于由鼓风机的空气运动而产生的空气压差而被输送通过开口。
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9.发明授权
公开(公告)号：US4997237A
公开(公告)日：1991-03-05
申请号：US410781
申请日：1989-09-22
CPC分类号： B60T13/745 , B60T13/686 , B60T8/4266 , H02P7/04 , Y02T10/7258
摘要： Differential performance characteristics are achieved in a motor-driven anti-lock braking system with a DC motor having a first brush which is employed for both forward and reverse motor rotation, a second brush which is employed in connection with the first brush when forward motor rotation is desired, and a third brush which is employed in connection with the first brush when reverse motor rotation is desired. The second and third brushes are displaced along the circumference of the motor commutator such that the first and second brushes encompass more turns of the rotor winding than the first and third brushes. As a result, more of the winding turns are active in the forward direction, and the motor torque is maximized for developing the required brake pressure. On the other hand, fewer of the winding turns are active in the reverse direction, and the motor speed is maximized to relatively quickly retract the armature within the valve bore to relieve the brake pressure.
摘要翻译： 在电机驱动的防抱死制动系统中实现了差动性能特征，其中DC电动机具有用于正向和反向电动机旋转的第一电刷，第二电刷与正向电动机转动时的第一电刷结合使用 需要与需要反向电动机旋转时与第一电刷连接使用的第三电刷。 第二和第三电刷沿着电动机换向器的圆周移位，使得第一和第二电刷包含比第一和第三电刷多的转子绕组匝数。 结果，更多的绕组匝在正向方向上是有效的，并且马达转矩最大化以产生所需的制动压力。 另一方面，较少的绕组匝在相反方向上有效，并且电动机速度最大化以相对快速地缩回阀孔内的电枢以减轻制动压力。
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10.发明授权
公开(公告)号：US4797600A
公开(公告)日：1989-01-10
申请号：US126025
申请日：1987-11-27
申请人： Jack W. Savage , John R. Savage
发明人： Jack W. Savage , John R. Savage
CPC分类号： F04D25/02 , F01P5/02 , F04D27/00 , H02P5/50 , Y10T464/30
摘要： A multiple cooling fan installation in which a master fan is driven by a brushless electric drive motor, and at least one slave fan having blades positioned adjacent the blades of the master fan is driven by magnetic coupling between such adjacent blades. Synchronism of rotation between the master and slave fans is ensured by generating a speed command N.sub.cmd for the master fan drive motor in relation to position feedback from the slave fan(s) so that the speed of the master fan is increased in relation to the ability of the slave fan(s) to follow in step with the master fan.
摘要翻译： 一种多重冷却风扇装置，其中主风扇由无刷电驱动电动机驱动，并且至少一个从动风扇具有位于主风扇叶片附近的叶片，由这些相邻叶片之间的磁耦合驱动。 通过针对主风扇驱动电动机相对于从属风扇的位置反馈产生速度指令Ncmd来确保主从风扇之间的旋转同步，使得主风扇的速度相对于能力增加 的主风扇跟随主风扇。
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