公开(公告)号：US5716191A

公开(公告)日：1998-02-10

申请号：US597569

申请日：1996-02-02

申请人： Motoya Ito ,  Takahiko Kato ,  Minoru Yasuda

发明人： Motoya Ito ,  Takahiko Kato ,  Minoru Yasuda

IPC分类号： F04D5/00 ,  F04D29/66

CPC分类号： F04D5/002 ,  F04D29/669 ,  F04D5/007 ,  F05B2250/503 ,  F05B2260/96

摘要： In order to reduce noise generated in a westco pump when fluid hits a finishing end of a pump channel, finishing ends of grooves formed in a side wall of a casing body and a casing cover to form a pump channel are shifted by an amount equal to 1/2 of the pitch of blade elements in relation to the rotating direction of an impeller. As a result, the timings the fluid under high pressure hits the finishing ends of the grooves are staggered, thus decreasing the collision sound.

摘要翻译： 为了减少当液体撞击泵通道的最终端时在西科泵产生的噪音，形成在壳体主体的侧壁上的槽的末端和壳体盖形成泵通道的位移量等于 + E，fra 1/2 + EE相对于叶轮的旋转方向的叶片元件的间距。 结果，在高压下流体的定时碰撞槽的末端交错，从而减少碰撞声。

公开(公告)号：US5340293A

公开(公告)日：1994-08-23

申请号：US968499

申请日：1992-10-29

申请人： Minoru Yasuda ,  Takahiko Kato ,  Motoya Ito

发明人： Minoru Yasuda ,  Takahiko Kato ,  Motoya Ito

IPC分类号： F02M37/08 ,  F04C2/10 ,  F01C1/10

CPC分类号： F04C2/102 ,  F04C2240/56

摘要： There is disclosed a trochoid pump in which a friction between a rotor and its support portion is reduced, thereby reducing a drive torque and wear of these parts. An inner rotor of the trochoid-type fuel pump is rotatably supported by a bushing through a bearing. An outer rotor is rotatably received in an inner periphery of a spacer. A first groove is formed in a portion of the outer periphery of the bushing disposed close to a discharge port, and a discharge fuel is introduced into this groove. A second groove is formed in a portion of the inner periphery of the spacer disposed close to the discharge port, and the discharge fuel is introduced into this groove. Although the inner rotor is urged toward the bushing by the fuel pressure of the discharge port, the urging force to urge the inner rotor toward the bushing is weakened by the discharge fuel introduced into the first groove, thereby reducing a friction. Although the outer rotor is urged against the spacer, the urging force to urge the outer rotor against the spacer is weakened by the discharge fuel introduced into the second groove, thereby reducing a friction.

摘要翻译： 公开了一种摆动泵，其中转子和其支撑部分之间的摩擦力减小，从而减少这些部件的驱动扭矩和磨损。 次摆线型燃料泵的内转子通过轴承由衬套可旋转地支撑。 外转子可旋转地容纳在间隔件的内周。 第一槽形成在靠近排出口设置的衬套的外周的一部分中，并且排出燃料被引入到该槽中。 第二凹槽形成在靠近排出口设置的间隔件的内周的一部分中，并且排出燃料被引入该凹槽中。 虽然通过排出口的燃料压力将内转子推向衬套，但是通过引入第一槽的排出燃料减弱了将内转子推向衬套的推动力，从而减小了摩擦。 尽管外转子被推靠在间隔件上，但通过引入到第二槽中的排出燃料来减弱推动外转子抵靠间隔件的推动力，从而减小了摩擦。

公开(公告)号：US5372475A

公开(公告)日：1994-12-13

申请号：US42267

申请日：1993-04-02

申请人： Takahiko Kato ,  Motoya Ito

发明人： Takahiko Kato ,  Motoya Ito

IPC分类号： F02M37/04 ,  F04D5/00 ,  F04D29/18 ,  F04D17/06

CPC分类号： F04D29/188 ,  F02M37/048 ,  F04D5/002

摘要： A Westco type fuel pump includes an impeller (32) which has a plurality of vane grooves (322) and a plurality of vane plates (323) provided alternately along its outer periphery. Each vane groove (322) is constituted by groove portions (322a, 322b) formed in both sides of the impeller (32), respectively, with a partition wall (321) provided between the groove portions (322a, 322b). The partition wall has an outer peripheral surface (3210) located radially inside an outer peripheral surface (3230) of each vane plate (323) and has a predetermined thickness in an axial direction of the impeller. As the impeller (32) rotates, two vortex flows of fuel are generated along bottom surfaces (3221, 3222) of the groove portions (322a, 322b) and then smoothly merge together at a position outside the outer peripheral surface (3210) of the partition wall, thereby reducing a flow dead zone (96) in a pump flow passage (33). When the impeller (32) is molded by using molds, deformation of the molded impeller is prevented due to the thickness of the outer peripheral surface (3210). Of the surfaces of the impeller (32), therefore, the surfaces of each vane groove remain as they are after the molding, while both sides of the impeller (32) and the outer peripheral surfaces (3230) of the vane plates (323) are ground. Thus, the impeller (32) able to surely achieve a high level of pump performance can be easily provided by resin molding.

摘要翻译： 一种Westco型燃料泵包括具有沿其外周交替设置的多个叶片槽322和多个叶片板323的叶轮32。 每个叶片槽322由形成在叶轮32的两侧的槽部322a，322b构成，分隔壁321设置在槽部322a，322b之间）。 隔壁具有位于各叶片板323的外周面3230的径向内侧的外周面3210，并且在叶轮的轴向上具有规定的厚度。 当叶轮（32）旋转时，沿凹槽部分（322a，322b）的底表面（3221,3222）产生两个燃料涡流，然后在外部周边表面（3210）外侧的位置处平滑地合并在一起 从而减少泵流道（33）中的流动死区（96）。 当通过模具模制叶轮（32）时，由于外周面（3210）的厚度，防止了模制叶轮的变形。 因此，在叶轮（32）的表面中，每个叶片槽的表面在模制之后保持原样，而叶轮（32）的两侧和叶片板（323）的外周面（3230） 是地面的 因此，可以容易地通过树脂成型提供能够确实获得高水平的泵性能的叶轮（32）。

公开(公告)号：US5263818A

公开(公告)日：1993-11-23

申请号：US970384

申请日：1992-11-02

申请人： Motoya Ito ,  Minoru Yasuda

发明人： Motoya Ito ,  Minoru Yasuda

IPC分类号： F02M37/20 ,  F02M37/08 ,  F04C2/10 ,  F04C15/00 ,  F04D5/00 ,  F04D9/00 ,  F04C15/02

CPC分类号： F02M37/08 ,  F04C15/0049 ,  F04C15/0053 ,  F04D5/002 ,  F04D9/002 ,  F04C2/102

摘要： A pump comprises an outer rotor and an inner rotor. A plurality of pressure chambers are defined between the outer rotor and the inner rotor to cause fluid to be sucked from a suction port and discharged to a discharge port by the movement of these pressure chambers with changing their volumes. A pressure relief passage is opened between the discharge port and the suction port and communicated directly with a fuel tank provided outside the pump. This causes the pressure in the pressure chamber to be reduced before the pressure chamber is communicated with the suction port. In consequence, it is possible to prevent the fuel of discharge pressure in the pressure chamber from being brought in the suction port, thereby preventing the generation of vapor caused due to vacuum boiling and the reduction of discharge rate.

摘要翻译： 泵包括外转子和内转子。 在外转子和内转子之间限定多个压力室，以使流体从吸入口吸入，并通过这些压力室的体积变化而被排出到排出口。 压力释放通道在排出口和吸入口之间打开，并与设在泵外部的燃料箱直接连通。 这导致在压力室与吸入口连通之前压力室中的压力降低。 因此，可以防止压力室中的排出压力的燃料进入吸入口，从而防止由真空沸腾引起的蒸气的产生和排出速率的降低。

公开(公告)号：US5607283A

公开(公告)日：1997-03-04

申请号：US525116

申请日：1995-09-08

申请人： Takahiko Kato ,  Motoya Ito

发明人： Takahiko Kato ,  Motoya Ito

IPC分类号： F02M37/08 ,  F04D5/00 ,  F04D29/18

CPC分类号： F04D5/002 ,  F04D29/188 ,  F05B2260/305

摘要： A disk-shaped impeller having on its periphery a multiple radial vanes and a multiple radial impeller grooves is rotatably disposed in a pump housing. On each end surfaces of the impeller there are formed a plurality of C-shaped grooves. As the impeller is rotated at a higher speed, the fluid in the C-shaped grooves in the impeller acquires a velocity component in an impeller's axial direction to generate a force sufficient to push a pump cover and a pump casing in the axial direction. Accordingly, since it is avoided for the impeller to adhere either the pump cover or the pump casing, the space between the impeller and the housing inner wall is reduced while the possible leakage of the fluid is reduced.

摘要翻译： 在其外周上具有多个径向叶片和多个径向叶轮槽的盘形叶轮可旋转地设置在泵壳体中。 在叶轮的每个端面上形成有多个C形槽。 当叶轮以更高的速度旋转时，叶轮中C形槽中的流体获得叶轮轴向的速度分量，以产生足以将泵壳和泵壳推向轴向的力。 因此，由于避免叶轮附着在泵盖或泵壳体上，所以叶轮和壳体内壁之间的空间减小，同时流体的泄漏可能降低。

公开(公告)号：US5498124A

公开(公告)日：1996-03-12

申请号：US190466

申请日：1994-02-02

申请人： Motoya Ito ,  Minoru Yasuda ,  Atsushige Kobayashi

发明人： Motoya Ito ,  Minoru Yasuda ,  Atsushige Kobayashi

IPC分类号： F02M37/08 ,  F04D5/00 ,  F04D29/66 ,  F04D17/06

CPC分类号： F04D5/002 ,  F04D29/669 ,  F04D5/007 ,  F05B2250/503

摘要： A regenerative pump includes a casing which a recessed fluid flow passage interconnecting a suction port and a discharge port is formed in an arcuate shape. An impeller is provided rotatably with respect to the casing and formed with a plurality of vane members which face the recessed fluid flow passage. A recessed damping portion is formed in a terminal end portion of the recessed fluid flow passage on a discharge port side thereof to begin at a position corresponding to the discharge port and extend along a rotating direction of the impeller. The recessed damping portion has a depth which is smaller than that of a main depth of the recessed fluid flow passage and substantially constant.

摘要翻译： 再生泵包括壳体，该壳体与吸入口和排出口相互连接的凹入流体流动通道形成为弓形。 叶轮相对于壳体可旋转地设置并且形成有面向凹入的流体流动通道的多个叶片构件。 在凹部流体流路的排出口侧的终端部形成凹陷阻尼部，开始于与排出口对应的位置，并沿着叶轮的旋转方向延伸。 凹陷阻尼部分的深度小于凹入流体流动通道的主深度的深度，并且基本上恒定。

公开(公告)号：US5723932A

公开(公告)日：1998-03-03

申请号：US665237

申请日：1996-06-17

申请人： Motoya Ito ,  Minoru Yasuda ,  Takeshi Matsuda

发明人： Motoya Ito ,  Minoru Yasuda ,  Takeshi Matsuda

IPC分类号： H01R39/10 ,  F02M37/08 ,  H01R39/18 ,  H01R39/38 ,  H02K5/132 ,  H02K7/14 ,  H02K13/00 ,  H02K13/10 ,  H02K23/00

CPC分类号： H01R39/18 ,  F02M37/08 ,  H01R39/381 ,  H02K13/10 ,  H02K5/132

摘要： A liquid pump has a DC motor and a pump in a cylindrical casing. A pair of brushes are slidably contacted with a commutator of an armature while being biased by springs. The specific resistance of the positive brush is lower than the specific resistance of the negative brush to enable the voltage drop at the brushes to be decreased and motor efficiency to be increased without increasing commutator wearing speed. The biasing force provided by the spring biasing the positive brush is lower than the biasing force provided by the spring biasing the negative brush.

摘要翻译： 液体泵具有直流电机和圆柱形壳体中的泵。 一对电刷与电枢的换向器可滑动接触，同时被弹簧偏压。 正刷的比电阻低于负电刷的电阻率，使电刷的电压降降低，电机效率提高而不增加换向器的磨损速度。 由弹簧偏压正电刷提供的偏置力低于由弹簧偏压负电刷提供的偏压力。

公开(公告)号：US08651832B2

公开(公告)日：2014-02-18

申请号：US12362676

申请日：2009-01-30

申请人： Motoya Ito

发明人： Motoya Ito

IPC分类号： F04B35/04

CPC分类号： F02M37/08

摘要： In a fuel pump, a case member and a discharge-side cover define a fuel passage. A holder is held between the case member and the discharge-side cover. Brush terminals are supported by the holder to conduct electricity between power receiving terminals and brushes. The power receiving terminals have connector portions that are connected with the brush terminals. A wall of the discharge-side cover and a wall of the holder clamp the connector portions therebetween. The wall of the discharge-side cover and the wall of the holder partition an installation space, which is isolated from the fuel passage and in which the connector portions are enclosed.

摘要翻译： 在燃料泵中，壳体部件和排出侧盖限定燃料通路。 保持器保持在壳体构件和排出侧盖之间。 刷子端子由支架支撑，以在受电端子和刷子之间进行电力传导。 电力接收端子具有与电刷端子连接的连接器部分。 排出侧盖的壁和保持件的壁将连接器部分夹在其间。 排出侧盖的壁和保持架的壁分隔设置空间，该安装空间与燃料通道隔离，并且连接器部分被封闭。

公开(公告)号：US20100287771A1

公开(公告)日：2010-11-18

申请号：US12805227

申请日：2010-07-20

申请人： Masatoshi Takagi ,  Motoya Ito

发明人： Masatoshi Takagi ,  Motoya Ito

IPC分类号： B23P17/00

CPC分类号： F04B17/03 ,  Y10T29/49236

摘要： A fuel pump includes a case member defining a fuel passage, an inlet, and an outlet. A pump portion is provided in the fuel passage for pumping fuel from the inlet to the outlet. A motor portion is provided in the case member for driving the pump portion. A positive electrode terminal and a negative electrode terminal are provided for conducting electricity to the motor portion. A holder being insulative is provided inside the case member. The holder is mounted with the positive electrode terminal and the negative electrode terminal. The positive electrode terminal and the negative electrode terminal are resin-molded.

摘要翻译： 燃料泵包括限定燃料通道，入口和出口的壳体构件。 在燃料通道中设置有泵部分，用于将燃料从入口泵送到出口。 电动机部分设置在用于驱动泵部的壳体部件中。 设置正电极端子和负极端子，用于向电动机部分传导电力。 在壳体内部设置绝缘保持器。 保持器安装有正极端子和负极端子。 正极端子和负极端子是树脂模制的。

公开(公告)号：US07692344B2

公开(公告)日：2010-04-06

申请号：US11634165

申请日：2006-12-06

申请人： Ryoso Masaki ,  Kazuhide Ebine ,  Yuji Enomoto ,  Motoya Ito

发明人： Ryoso Masaki ,  Kazuhide Ebine ,  Yuji Enomoto ,  Motoya Ito

IPC分类号： H02K11/00

CPC分类号： H02K3/04 ,  H02K3/525

摘要： In a motor having a pawl-shaped magnetic pole, if a coil is wound like a ring shape so as to be formed, one leader line can be generally drawn out to an external portion from a position close to an outer periphery of a stator, however, the other leader line is drawn out to the external portion from an inner periphery of the stator. Accordingly, the leader line occupies a part of the inner space formed by the stator core, so that there is generated a problem that a space factor of the coil is reduced. Accordingly, an object of the present invention is to improve the space factor of the coil. In order to achieve the object mentioned above, a space passing wirings of a plurality of coils therethrough is provided in a part of the pawl-shaped magnetic pole of the stator core of the stator having the pawl-shaped magnetic pole. Accordingly, one of leader lines of the coil is drawn out from an outer peripheral portion (or an opposite side to a side facing to the rotor) of the stator, and the other is drawn out in an axial direction from the space of the claw-shaped magnetic pole of the stator. Therefore, it is possible to do away with an influence by the leader line, it is possible to increase a winding number of the coil even in the same space, and it is possible to improve a downsizing of the motor.

摘要翻译： 在具有棘爪状磁极的电动机中，如果线圈被卷绕成环状形成，则可以将一条引线一般从靠近定子外周的位置抽出到外部， 然而，另一个引导线从定子的内周被拉出到外部。 因此，引导线占据由定子铁芯形成的内部空间的一部分，从而产生线圈的空间系数减小的问题。 因此，本发明的目的是提高线圈的空间系数。 为了实现上述目的，在具有棘爪状磁极的定子的定子铁心的棘爪状磁极的一部分上设置有多个线圈的配线的空间。 因此，线圈的引线之一从定子的外周部（或与转子相对的一侧的相反侧）拉出，另一方从爪的空间沿轴向拉出 定子的磁极。 因此，可以避免引线的影响，即使在相同的空间也可以增加线圈的绕组数，可以提高电动机的小型化。