公开(公告)号：US20170067462A1

公开(公告)日：2017-03-09

申请号：US15123029

申请日：2015-03-04

Applicant: KYB CORPORATION

Inventor： Masamichi SUGIHARA ,  Tomoyuki FUJITA ,  Tomoyuki NAKAGAWA ,  Tsutomu KOMIYA

IPC: F04C2/344 ,  F04C15/00

CPC classification number: F04C2/3448 ,  F01C21/0809 ,  F01C21/0854 ,  F01C21/0863 ,  F01C21/10 ,  F01C21/108 ,  F04C2/3446 ,  F04C15/00 ,  F04C2230/603 ,  F04C2240/10 ,  F04C2240/20

Abstract: A vane pump includes a rotor; a plurality of vanes; a cam ring; and a pump body having an accommodating concave portion accommodating the cam ring. The cam ring includes a ring fitting portions formed in a plurality of regions on an outer circumference and a ring small-diameter portions formed on the outer circumference so as to have an outer diameter smaller than those of the ring fitting portions. The accommodating concave portion has a body fitting portion to which the ring fitting portions is fitted and a body large-diameter portions formed on the inner circumference in a plurality of regions so as to have an inner diameter lager than that of the body fitting portions.

Abstract translation: 叶片泵包括转子; 多个叶片; 凸轮环 以及具有容纳所述凸轮环的容纳凹部的泵体。 凸轮环包括形成在外周上的多个区域中的环形装配部分和形成在外周上的环形小直径部分，以具有比环形装配部分的外径小的外径。 容纳凹部具有配合环状配合部的主体嵌合部和形成在多个区域的内周上的主体大径部，其内径比主体嵌合部的内径大。