JPH0457687U

JPH0457687U -

Info

Publication number: JPH0457687U
Application number: JP10035790U
Authority: JP
Priority date: 1990-09-25
Filing date: 1990-09-25
Publication date: 1992-05-18

Description

[Brief explanation of the drawing]

第１図および第２図は本考案の一実施例を示し
、第１図はフロントハウジングを取去つた状態で
のポンプ正面図、第２図はロータを取去つた状態
での第１図の−線断面図、第３図は従来例を
示すフロントハウジングとロータを取去つた状態
でのポンプ概略正面図、第４図および第５図は他
の従来例を示し、第４図はフロントハウジングを
取去つた状態でのポンプ正面図、第５図は第４図
の−線断面図である。１……ロータ、２……ベーン、３……カムリン
グ、３１……凹所、４……サイドプレート（ハウ
ジング壁）、４１……吸入ポート、４２……吐出
ポート、５……ポンプハウジング、５ａ……内壁
、５１……流体供給路、５２……流体供給口、６
……回転軸、Ｐ……ポンプ室。 Figures 1 and 2 show an embodiment of the present invention; Figure 1 is a front view of the pump with the front housing removed, and Figure 2 is the same view of Figure 1 with the rotor removed. - Line sectional view, Figure 3 is a schematic front view of the pump with the front housing and rotor removed, showing a conventional example, Figures 4 and 5 show other conventional examples, and Figure 4 is the front housing. FIG. 5 is a front view of the pump with the pump removed, and FIG. 5 is a sectional view taken along the line -- in FIG. 4. 1... Rotor, 2... Vane, 3... Cam ring, 31... Recess, 4... Side plate (housing wall), 41... Suction port, 42... Discharge port, 5... Pump housing, 5a ...Inner wall, 51...Fluid supply path, 52...Fluid supply port, 6
... Rotating shaft, P ... Pump room.

Claims

[Scope of utility model registration request]

A plurality of vanes are provided on the outer periphery of the rotating rotor, and each vane divides the inner space of the cam ring into a plurality of pump chambers.Fluid is sucked into each pump chamber from the suction port, and the sucked fluid is transferred from each pump chamber. In a vane pump that compresses and discharges to a discharge port, the cam ring is provided with a rotation preventing means for the pump housing, the inner wall of the pump housing is molded into a shape that is in constant contact with the outer periphery of the cam ring, and the inner wall that is in contact with the outer periphery of the cam ring is circumferentially A vane pump characterized in that a groove extending to the vane is formed to serve as a fluid supply passage, and the fluid supply passage is communicated with the suction port formed in the housing wall in contact with the side end surface of each of the vanes.