JPH0193385U

JPH0193385U -

Info

Publication number: JPH0193385U
Application number: JP18907987U
Authority: JP
Priority date: 1987-12-11
Filing date: 1987-12-11
Publication date: 1989-06-20

Description

[Brief explanation of the drawing]

添付図面は本考案の一実施例を示し、第１図乃
至第４図はポンプの作動を示す一部切欠平面図、
第５図は第１図のＡ―Ａ線断面図である。１：本体、５：キヤビテイ、１０：回転軸、１
２：ロータ、１７：転動体、１８：ライニング、
２０ａ：流入ポート、２１ａ：流出ポート、２６
：摺動孔、２７：仕切体、２７ａ：（仕切体の）
先端面、３０：圧縮コイルばね、Ｏ：（回転軸、
キヤビテイの）軸心、Ｐ：（ロータの偏心軸の）
軸心。 The accompanying drawings show an embodiment of the present invention, and FIGS. 1 to 4 are partially cutaway plan views showing the operation of the pump;
FIG. 5 is a sectional view taken along the line AA in FIG. 1. 1: Main body, 5: Cavity, 10: Rotating shaft, 1
2: Rotor, 17: Rolling element, 18: Lining,
20a: Inflow port, 21a: Outflow port, 26
: sliding hole, 27: partition, 27a: (of partition)
Tip surface, 30: Compression coil spring, O: (rotating shaft,
(of the cavity) axis, P: (of the eccentric shaft of the rotor)
Axial center.

Claims

[Scope of utility model registration request]

An inflow port and an outflow port communicating with the cavity are formed in a main body having a circular cavity spaced apart from each other in the circumferential direction of the cavity, and a rotating shaft is supported concentrically with the cavity and freely rotatable. and a circular rotor is provided on the rotary shaft so as to rotate integrally with the rotor centered on an axis eccentric to the axis of the rotary shaft, and is housed in the cavity, and is tightly fitted to the rotor and the cavity. A wide annular rolling element is rotatably fitted onto the outside, the outer periphery of the rolling element is brought into rollable contact with the inner circumferential surface of the cavity, and between the inlet port and the outlet port on the inner circumferential surface. A partition body urged in a direction protruding into the cavity is tightly and slidably fitted into a sliding hole formed over the entire width of the cavity, and the tip of the partition body is fitted into a sliding hole formed over the entire width of the cavity. The fluid pressure is brought into contact with the outer circumferential surface of the rolling element, and further, at least one of the inner circumferential surface of the cavity and the outer circumferential surface of the rolling element is made of an elastic material such as rubber or synthetic resin. A conversion device between energy and shaft rotational energy.