公开(公告)号：US20160138599A1

公开(公告)日：2016-05-19

申请号：US14830960

申请日：2015-08-20

Applicant: DENSO CORPORATION

Inventor： Kunio NANBA ,  Yuta HASEBE

IPC: F04D17/10

CPC classification number: F04D17/10 ,  F04D29/2255 ,  F04D29/242 ,  F04D29/30

Abstract: A centrifugal pump for pressurizing fluid by using centrifugal force has an impeller and a casing. The impeller is operated rotatably by an actuator. The casing houses the impeller. The impeller has blades arranged one after another in a circumferential direction of the impeller, and a passage is defined between the blades adjacent to each other in the circumferential direction. The passage has a linear portion and a curved portion. The linear portion extends linearly and has a uniform cross section. The curved portion is connected to an end of the linear portion, extends as being curved to a radial-outer side of the impeller, and decreases in cross section toward the radial-outer side.

Abstract translation: 用离心力加压流体的离心泵具有叶轮和壳体。 叶轮由致动器可旋转地操作。 外壳容纳叶轮。 叶轮具有在叶轮的圆周方向上一个接一个地布置的叶片，并且在圆周方向上彼此相邻的叶片之间限定通道。 通道具有直线部分和弯曲部分。 直线部分线性延伸并且具有均匀的横截面。 弯曲部分连接到直线部分的端部，并且弯曲到叶轮的径向外侧，并且朝向径向外侧的横截面减小。