公开(公告)号：US20170058893A1

公开(公告)日：2017-03-02

申请号：US15241373

申请日：2016-08-19

申请人： MAHLE FILTER SYSTEMS JAPAN CORPORATION

发明人： Toru SHINOHARA ,  Kentaro HARADA

IPC分类号： F04C14/22 ,  F04C14/24 ,  F04C2/352

CPC分类号： F04C14/226 ,  F04C2/332 ,  F04C2/352 ,  F04C14/223 ,  F04C14/24 ,  F04C2240/30 ,  F04C2270/18 ,  F04C2270/185 ,  F04C2270/70

摘要： A variable displacement pump includes: a first pressure control chamber; a second pressure control chamber; a spring arranged to urge the cam ring in a second swing direction; a hydraulic pressure supply valve arranged to be opened by a predetermined hydraulic pressure, and thereby to introduce a control hydraulic pressure to the first control chamber; a connection passage formed in the housing or the cam ring, and arranged to connect the first pressure control chamber and the second pressure control chamber; and a relief circuit arranged to connect the second pressure control chamber and a low pressure side, to be opened or closed in accordance with a swing position of the cam ring, and to be closed when the cam ring is swung by a predetermined amount in the first direction.

摘要翻译： 可变排量泵包括：第一压力控制室; 第二压力控制室; 布置成沿第二摆动方向推动所述凸轮环的弹簧; 液压供给阀，其以规定的液压打开，由此向第一控制室引入控制液压; 形成在壳体或凸轮环中并连接第一压力控制室和第二压力控制室的连接通道; 以及安排用于根据所述凸轮环的摆动位置将所述第二压力控制室和低压侧连接成打开或关闭的释放电路，并且当所述凸轮环在所述凸轮环中摆动预定量时被关闭 第一个方向

公开(公告)号：US20160186751A1

公开(公告)日：2016-06-30

申请号：US14974308

申请日：2015-12-18

申请人： MAHLE FILTER SYSTEMS JAPAN CORPORATION

发明人： Toru SHINOHARA

IPC分类号： F04C14/22 ,  F04C15/06 ,  F04C28/22 ,  F04C29/12 ,  F04C2/352 ,  F04C18/352

CPC分类号： F04C14/22 ,  F04C2/332 ,  F04C2/348 ,  F04C2/352 ,  F04C14/226 ,  F04C15/06 ,  F04C18/352 ,  F04C28/22 ,  F04C29/12 ,  F04C2240/54

摘要： A variable displacement pump includes a housing having a pair of end wall surfaces; an annular outer rotor guide swingably disposed between the pair of end wall surfaces; a cylindrical outer rotor; an inner rotor provided radially inward of the outer rotor and configured to rotate integrally with a drive shaft at a location eccentric relative to the outer rotor; and a plurality of coupling plates coupling the inner rotor and the outer rotor. The outer rotor is rotatably fitted into an outer rotor supporting surface of the outer rotor guide. A space between the inner rotor and the outer rotor is partitioned into a plurality of chambers by the plurality of coupling plates. A concave portion is formed in the outer rotor supporting surface such that the concave portion exists over an entire axial range between the both end surfaces of the outer rotor guide.

摘要翻译： 可变排量泵包括具有一对端壁表面的壳体; 可摆动地设置在所述一对端壁表面之间的环形外转子引导件; 圆柱形外转子; 内转子设置在所述外转子的径向内侧，并且构造成在与所述外转子偏心的位置处与驱动轴一体地旋转; 以及联接内转子和外转子的多个联接板。 外转子可旋转地配合在外转子导向件的外转子支承面上。 内转子和外转子之间的空间由多个联接板分隔成多个室。 在外转子支承面上形成有凹部，使得凹部在外转子导向件的两端面之间的整个轴向范围内存在。