JPH0427192U

JPH0427192U -

Info

Publication number: JPH0427192U
Application number: JP7014290U
Authority: JP
Priority date: 1990-06-29
Filing date: 1990-06-29
Publication date: 1992-03-04

Description

[Brief explanation of the drawing]

第１図ないし第４図は本考案の一実施例を示し
、第１図はカムリングの正面図、第２図はその側
面図、第３図はベーンポンプの全体縦断面図、第
４図はその横断面図、第５図および第６図は本考
案の他の例を示すそれぞれカムリングの正面図と
側面図、第７図ないし第１１図は従来例を示し、
第７図はベーンポンプの全体縦断面図、第８図は
その横断面図、第９図はカムリングの正面図、第
１０図は第９図のＸ−Ｘ線断面図、第１１図はカ
ムリングの側面図である。１……ロータ、２……ベーン、３……カムリン
グ、３１……ガイド壁、４……ポンプハウジング
、４ａ……空間、４３……流体供給口、４２２…
…吐出ポート、５……サイドプレート、５１……
吐出ポート、５２……吸入ポート。 Figures 1 to 4 show an embodiment of the present invention, with Figure 1 being a front view of the cam ring, Figure 2 being a side view thereof, Figure 3 being a vertical cross-sectional view of the vane pump as a whole, and Figure 4 being the front view of the cam ring. A cross-sectional view, FIGS. 5 and 6 are front and side views of a cam ring showing other examples of the present invention, and FIGS. 7 to 11 show a conventional example,
Fig. 7 is an overall vertical sectional view of the vane pump, Fig. 8 is a cross-sectional view thereof, Fig. 9 is a front view of the cam ring, Fig. 10 is a sectional view taken along the line X-X of Fig. 9, and Fig. 11 is a cross-sectional view of the cam ring. FIG. DESCRIPTION OF SYMBOLS 1... Rotor, 2... Vane, 3... Cam ring, 31... Guide wall, 4... Pump housing, 4a... Space, 43... Fluid supply port, 422...
...Discharge port, 5...Side plate, 51...
Discharge port, 52... Suction port.

Claims

[Scope of utility model registration request]

Vanes protruding outward are provided at equal intervals on the outer periphery of the rotating rotor, and the tips of these vanes are brought into contact with the inner peripheral cam surface of a cam ring provided outside the rotor, and the housing is brought into contact with both end surfaces of the rotor and the vanes. A wall forms a sealed pump chamber between each vane,
A vane pump that sequentially sucks fluid into each pump chamber from a suction port formed in the housing wall, and compresses and discharges fluid sequentially from each pump chamber to a discharge port formed in the housing, the fluid supply provided in the housing. A vane pump that supplies fluid from the mouth to the suction port through the housing inner space along the outer periphery of the cam ring,
A vane pump characterized in that a guide wall is provided on the outer periphery of the cam ring to project the supply fluid flowing in the circumferential direction to gradually divert the supply fluid laterally and guide it to the suction port.