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公开(公告)号：US09206690B2
公开(公告)日：2015-12-08
申请号：US13444428
申请日：2012-04-11
申请人： Dai Niwata , Koji Saga
发明人： Dai Niwata , Koji Saga
CPC分类号： F01C21/108 , F01C21/0845 , F04C2/3442 , F04C14/226
摘要： A variable displacement pump includes: side walls provided on both sides of the cam ring in an axial direction; and an introduction passage which is formed on one of the separation walls across which the hydraulic chambers pass when the hydraulic chambers are moved from the suction portion to the discharge portion, which is arranged to shut off a connection between one of the hydraulic chambers and the control hydraulic chamber by an axial end surface of the cam ring when the cam ring is in a maximum eccentric state, and which is arranged to connect the one of the hydraulic chambers and the control hydraulic chamber by a movement of the cam ring in the direction to decrease the eccentric amount of the cam ring, and thereby to introduce the discharge pressure within the control hydraulic chamber to the one of the hydraulic chambers.
摘要翻译： 可变排量泵包括：在轴向方向上设置在凸轮环的两侧的侧壁; 以及引导通道，其形成在所述液压室当从所述抽吸部分移动到所述排放部分时所述液压室通过的一个隔离壁上，所述引导通道设置成切断所述液压室中的一个与所述液压室之间的连接， 当所述凸轮环处于最大偏心状态时，由所述凸轮环的轴向端面控制液压室，并且所述液压室被设置成通过所述凸轮环沿所述方向的运动来连接所述液压室和所述控制液压室中的一个 以减小凸轮环的偏心量，从而将控制液压室内的排出压力引导到液压室中的一个。
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公开(公告)号：US07410346B2
公开(公告)日：2008-08-12
申请号：US10974843
申请日：2004-10-28
申请人： Dai Niwata
发明人： Dai Niwata
CPC分类号： F04C15/066 , F04C2/102 , F04C15/0049
摘要： An oil pump includes a partition for dividing an outlet port into a first passage section on the upstream side and a second passage section on the downstream side, wherein a discharge passage fluidly communicates with the first passage section, and a relief valve is disposed in the second passage section.
摘要翻译： 油泵包括用于将出口分成上游侧的第一通道部分和下游侧的第二通道部分的分隔壁，其中排出通道与第一通道部分流体连通，并且安全阀设置在 第二通道段。
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公开(公告)号：US20050095148A1
公开(公告)日：2005-05-05
申请号：US10974843
申请日：2004-10-28
申请人： Dai Niwata
发明人： Dai Niwata
CPC分类号： F04C15/066 , F04C2/102 , F04C15/0049
摘要： An oil pump includes a partition for dividing an outlet port into a first passage section on the upstream side and a second passage section on the downstream side, wherein a discharge passage fluidly communicates with the first passage section, and a relief valve is disposed in the second passage section.
摘要翻译： 油泵包括用于将出口分成上游侧的第一通道部分和下游侧的第二通道部分的分隔壁，其中排出通道与第一通道部分流体连通，并且安全阀设置在 第二通道段。
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