公开(公告)号：US06570288B1

公开(公告)日：2003-05-27

申请号：US09878907

申请日：2001-06-13

申请人： Masaaki Kaizuka ,  Kazuma Okuda ,  Kazunari Takahashi ,  Masaharu Hosoda

发明人： Masaaki Kaizuka ,  Kazuma Okuda ,  Kazunari Takahashi ,  Masaharu Hosoda

IPC分类号： H02K2122

CPC分类号： H02K1/2786 ,  H02K21/22

摘要： An outer rotor type brushless direct current motor has an outer rotor including a plurality of permanent magnets attached along the inner circumference of an annular yoke such that the magnetic poles face the S magnetic poles. Thin sections are formed by chamfering the radially outer periphery of the two end sections in the circumferential direction of each of the permanent magnets. Magnetic flux passage sections of the yoke providing connection between the thin sections of adjacent permanent magnets are expanded radially inwards. In accordance with the above-mentioned arrangement, the cross section of the magnetic path in the magnetic flux passage sections is increased, thereby suppressing the occurrence of magnetic saturation and preventing the maximum torque of the permanent magnets from decreasing while reducing their size. Moreover, because the magnetic flux passage sections of the yoke are expanded radially inwards, the external dimensions of the yoke do not increase.

摘要翻译： 外转子式无刷直流电动机具有外转子，该外转子包括沿着环形磁轭的内周安装的多个永久磁铁，使得磁极面对S磁极。 通过在每个永磁体的圆周方向上倒角两个端部的径向外周而形成薄壁部。 提供相邻永磁体的薄部之间的连接的磁轭的磁通通道部分径向向内扩展。 根据上述结构，磁通通路部分的磁路的横截面增大，从而抑制磁饱和的发生，并防止永磁体的最大转矩减小，同时减小其大小。 此外，由于磁轭的磁通通路部分径向向内扩张，所以磁轭的外部尺寸不增加。

公开(公告)号：US06899650B2

公开(公告)日：2005-05-31

申请号：US10383516

申请日：2003-03-10

申请人： Kazuma Okuda ,  Katsuya Minami ,  Shigeru Aoki ,  Tadashi Fujiwara ,  Shogo Yonemoto

发明人： Kazuma Okuda ,  Katsuya Minami ,  Shigeru Aoki ,  Tadashi Fujiwara ,  Shogo Yonemoto

IPC分类号： F02B67/06 ,  F16H7/08 ,  F16H7/12 ,  F16H7/22

CPC分类号： F16H7/129 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0859

摘要： A hydraulic automatic tensioner for adjusting the tension of a bell includes a first member with a piston formed integrally, a second member combined with the first member and axially movable relative to the first member, a cylinder formed integrally with the second member, together defining a fluid-reservoir chamber for hydraulic fluid, axially slidably receiving the piston, and a spring pushing the members apart. The piston and cylinder form a pressure chamber filled with hydraulic fluid. The second member has a leak passage through which fluid flows from the pressure chamber into the fluid-reservoir chamber. A control valve is placed in the leak passage, inhibiting flow of fluid from the pressure chamber into the fluid-reservoir chamber. A control device moves the control valve to close the leak passage when activated and makes it ineffective when deactivated so that the pressure chamber communicates with the fluid-reservoir chamber via the leak passage.

摘要翻译： 一种用于调节喇叭张力的液压自动张紧装置，包括具有一体形成的活塞的第一构件，与该第一构件组合并与该第一构件可轴向移动的第二构件，与该第二构件一体形成的圆筒， 用于液压流体的流体储存室，轴向可滑动地接收活塞，以及弹簧推动构件分开。 活塞和气缸形成一个充满液压油的压力室。 第二构件具有泄漏通道，液体通过该通道流体从压力室流入流体储存室。 控制阀被放置在泄漏通道中，从而抑制流体从压力室流入流体储存室。 控制装置在启动时移动控制阀以关闭泄漏通道，并且在停用时使其无效，使得压力室经由泄漏通道与流体储存室连通。

公开(公告)号：US06561770B2

公开(公告)日：2003-05-13

申请号：US09866871

申请日：2001-05-30

申请人： Kazuma Okuda

发明人： Kazuma Okuda

IPC分类号： F04B4900

CPC分类号： F04D15/0066 ,  F01P5/12 ,  F02B63/06 ,  F02B67/06

摘要： A fluid coupling is provided between a pump shaft of a water pump and a water pump pulley and includes a liquid chamber formed inside housings and filled with a fluid, and a rotor fixed to the pump shaft and housed in the liquid chamber. When the housings connected to a crank pulley via an endless belt rotate, the rotor is dragged by the viscosity of the fluid and the pump shaft rotates. Since the fluid coupling has the property of decreasing the rate of increase in the output rotational speed of the fluid coupling as the input rotational speed increases, the required rotational speed of the water pump can be guaranteed when the rotational speed of the engine is low, and the water pump can be prevented from rotating excessively when the rotational speed of the engine is high.

摘要翻译： 在水泵的泵轴和水泵皮带轮之间设置有流体联轴器，并且包括形成在壳体内并充满流体的液室，以及固定在泵轴上并容纳在液体室中的转子。 当通过环形带连接到曲柄皮带轮的壳体旋转时，转子被流体的粘度拖动并且泵轴旋转。 由于流体联轴器具有随着输入转速的增加而降低流体联轴器的输出转速的增加率的特性，所以当发动机的转速低时可以保证所需的水泵转速， 当发动机的转速高时，能够防止水泵过度旋转。

公开(公告)号：US06784575B2

公开(公告)日：2004-08-31

申请号：US09865514

申请日：2001-05-29

申请人： Kazuma Okuda

发明人： Kazuma Okuda

IPC分类号： H02K900

CPC分类号： F02N11/04 ,  H02K3/24 ,  H02K3/522 ,  H02K5/10 ,  H02K7/10 ,  H02K7/1815 ,  H02K9/06 ,  H02K11/048

摘要： A motor/generator housed in an annular space formed between an engine side wall and a crank pulley fixed to an end of a crank shaft includes a stator supported on the engine side wall and a rotor supported on the inner surface of a peripheral wall of the pulley. Air is introduced into the annular space via an air inlet passage by means of cooling fan blades formed on a side wall of the crank pulley, and coils are cooled by passing the air through air passages formed between adjacent coils. The entrance of an air gap between the stator and the rotor is shielded by means of shields provided on bobbins so as to prevent any foreign matter from entering the air gap.

摘要翻译： 容纳在形成在发动机侧壁和固定到曲轴的端部的曲柄轮之间的环形空间中的电动机/发电机包括支撑在发动机侧壁上的定子和支撑在发动机侧壁的周壁的内表面上的转子 滑轮。 通过形成在曲柄皮带轮的侧壁上的冷却风扇叶片，通过进气通道将空气引入到环形空间中，并且通过使空气通过形成在相邻线圈之间的空气通道来冷却线圈。 定子和转子之间的气隙的入口通过设置在线轴上的屏蔽屏蔽，以防止任何异物进入气隙。

公开(公告)号：US06752112B1

公开(公告)日：2004-06-22

申请号：US10019742

申请日：2001-12-28

申请人： Satoru Ohata ,  Kazuma Okuda ,  Shunichi Tsuzuki ,  Tadashi Fujiwara ,  Kazuyuki Kubo ,  Masaaki Kaizuka

发明人： Satoru Ohata ,  Kazuma Okuda ,  Shunichi Tsuzuki ,  Tadashi Fujiwara ,  Kazuyuki Kubo ,  Masaaki Kaizuka

IPC分类号： F02N1700

CPC分类号： F02N11/04 ,  F02N11/0814 ,  F02N2200/023 ,  F02N2200/061 ,  F02N2200/0801 ,  F02N2200/0802 ,  F02N2200/0806 ,  F02N2200/0807 ,  F02N2200/122 ,  H02K7/006 ,  H02K7/1016 ,  H02K7/1815 ,  Y02T10/48

摘要： In an engine-starting and stopping system in a vehicle, a crank pulley for driving auxiliary parts by an endless belt is mounted at an end of a crankshaft protruding from a cylinder block of an engine, and a starter motor for cranking the crankshaft is accommodated in an internal space in the crank pulley. The starter motor includes a rotor having a permanent magnet fixed to an inner peripheral surface of a peripheral wall of the crank pulley, and a stator having a coil fixed to an outer surface of a chain cover. Thus, the starter motor for automatically carrying out the restarting of the engine after stopping of the engine can be laid out compactly.

摘要翻译： 在车辆的发动机起动和停止系统中，用于通过环形带驱动辅助部件的曲柄皮带轮安装在从发动机的气缸体突出的曲轴的端部，并且容纳用于起动曲轴的起动电动机 在曲柄皮带轮的内部空间。 起动电动机包括具有固定在曲柄轮的周壁的内周面上的永磁体的转子和具有固定在链罩外表面的线圈的定子。 因此，可以紧凑地布置用于在发动机停止之后自动执行发动机重新起动的起动电动机。