公开(公告)号：US09175680B2

公开(公告)日：2015-11-03

申请号：US13751374

申请日：2013-01-28

申请人： JTEKT CORPORATION

发明人： Junichi Miyaki ,  Katsutoshi Nisizaki ,  Yoshihiro Oono ,  Naotake Kanda

IPC分类号： F04C11/00 ,  F01C21/10 ,  F04C15/00 ,  F04C2/10

CPC分类号： F04C11/008 ,  F01C21/10 ,  F04C2/102 ,  F04C15/008 ,  F04C2240/40 ,  F04C2240/805

摘要： A stator is fixedly fastened at its outer periphery by a cylindrical and thin metal collar. One end of the collar is engaged with a pump housing. Multiple metal nuts are embedded in insulators fitted to stator cores through insert molding. The stator of a brushless motor is fixed by screwing bolts passed through the pump housing from a pump plate, to nuts embedded in the insulators.

摘要翻译： 定子通过圆柱形和薄金属环固定在其外周。 衣领的一端与泵壳接合。 多个金属螺母嵌入到通过嵌件成型安装在定子芯上的绝缘体中。 无刷电动机的定子通过螺旋穿过泵壳体的螺栓从泵板固定到嵌入在绝缘体中的螺母。

公开(公告)号：US08851869B2

公开(公告)日：2014-10-07

申请号：US13705596

申请日：2012-12-05

申请人： JTEKT Corporation

发明人： Yoshihiro Oono ,  Motoyasu Yamamori ,  Daichi Kanda ,  Kenichi Takagi

IPC分类号： F01C1/02 ,  F03C2/08 ,  F04C2/10 ,  F04C2/08

CPC分类号： F04C2/103 ,  F04C2/084 ,  F04C2/102 ,  F04C2250/20

摘要： In an internal gear pump that includes an inner gear having outer teeth and an outer gear having inner teeth, either the inner or outer teeth have a shape based on a tooth shape that is respectively formed by a generating curve of the outer or inner teeth. The inner teeth are arc-shaped, the outer teeth are curved-shaped, and both end sections of the curved shape are arc-shaped. If a radius of the arc shape of the inner teeth is set as ro, a radius of the arc shape of each of the corner sections is set as ri, a diameter of a pitch circle of the inner teeth is set as dp, and the number of the inner teeth is set as z, the inner gear and the outer gear each has a shape that satisfies a relationship established by following equations: 1.6>ro/(dp/z)>1.0; and ro/(dp/z)>ri/(dp/z)≧0.13. Each of the inner teeth is provided so that an intersecting point between one of arcs that follow the first arc shapes of the adjacent inner teeth and the pitch circle of the inner teeth and in proximity to the other arc is located outside of the other arc.

摘要翻译： 在包括具有外齿的内齿轮和具有内齿的外齿轮的内齿轮泵中，内齿或外齿都具有基于由外齿或内齿的产生曲线分别形成的齿形的形状。 内齿是弧形的，外齿是弧形的，弯曲形状的两个端部都是弧形的。 如果将内齿的圆弧的半径设为ro，则将各角部的圆弧形状的半径设为ri，将内齿的节圆的直径设定为dp， 内齿数被设定为z，内齿轮和外齿轮各自具有满足以下等式建立的关系的形状：1.6> ro /（dp / z）> 1.0; （dp / z）> ri /（dp / z）≥0.13。 每个内齿被设置成使得跟随相邻内齿的第一弧形的弧之一和内齿的节圆之间并且接近另一个弧的弧之间的交叉点位于另一弧的外侧。

公开(公告)号：US09422939B2

公开(公告)日：2016-08-23

申请号：US13679398

申请日：2012-11-16

申请人： JTEKT CORPORATION

发明人： Naotake Kanda ,  Yoshihiro Oono

IPC分类号： H02K5/04 ,  F04D13/06 ,  H02K1/18 ,  H02K5/173 ,  H02K7/14 ,  H02K15/16 ,  H02K5/15 ,  H02K7/116

CPC分类号： F04D13/06 ,  F04C2240/805 ,  H02K1/185 ,  H02K5/15 ,  H02K5/1732 ,  H02K7/1166 ,  H02K7/14 ,  H02K15/16

摘要： A pump housing, a fixing member and a holding member are assembled in the axis direction of an oil pump to fix a stator and a rotor of a brushless motor. The holding member is made of metal material and has a cylindrical shape that extends from its bottom portion toward one side in the axial direction. The fixing member is a cylindrical metal member. Stepped portions, extending in the circumferential direction, are formed in the outer periphery of the holding member and the inner periphery of the fixing member, and contact each other. The outer periphery of the holding member engages with the inner periphery of the fixing member. The outer periphery of the other end portion of the fixing member is fitted to the inner periphery of a flange portion projecting from the end face of the pump housing, which is adjacent to the brushless motor.

摘要翻译： 在油泵的轴线方向上组装泵壳体，固定部件和保持部件，以固定无刷电动机的定子和转子。 保持构件由金属材料制成，并且具有从其底部向轴向一侧延伸的圆筒形状。 固定构件是圆柱形金属构件。 在保持部件的外周和固定部件的内周面上形成有沿圆周方向延伸的台阶部，并且彼此接触。 保持构件的外周与固定构件的内周接合。 固定部件的另一端部的外周嵌合在与无刷电动机相邻的泵壳体的端面突出的凸缘部的内周。