JPS5822482U

JPS5822482U - rotary pump

Info

Publication number: JPS5822482U
Application number: JP11634981U
Authority: JP
Inventors: 和田　一二三
Original assignee: 三菱電機株式会社
Priority date: 1981-08-03
Filing date: 1981-08-03
Publication date: 1983-02-12

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の羽根形回転ポンプを示す縦断面、第２図
は第１図の■−■線に沿って得た従来の回転ポンプの断
面図、第３図および第４図は第１図に示された従来の回
転ポンプにおいて偏心リング部とベーンとの関係を示す
部分的な断面図、第５図は本考案の＝実施例における回
転ポンプを示す縦断面図、第６図は第５図のＶＩ−ＶＩ
線に沿って得′た本考案の回転ポンプを示す断面図、第
７図および第８図は第５図に示された本考案における回
転ポンプの偏心リング部を拡大して示す部分的な断面図
である。２・・・ブラケット、４・・・ハウジング、５・・・ポ
ンプ室、６・・・駆動軸、７・・田−タ、８・・・ベー
ン、２゜・・・回転ポンプ、２１．２２・・・偏心リン
グ部、２１ａ、　２２ａ−・・摺動面即チテーハ面、２
１ｂ。２１ｂ・・・端面。なお、図中同一符号は同一部分又は
相当部分を示す。第５図 ′Ｘ］第６図２１３ノFig. 1 is a longitudinal section showing a conventional vane-type rotary pump, Fig. 2 is a sectional view of the conventional rotary pump taken along the line ■-■ in Fig. 1, and Figs. FIG. 5 is a vertical sectional view showing the relationship between the eccentric ring portion and the vane in the conventional rotary pump shown in the figure; FIG. 5 is a vertical sectional view showing the rotary pump in the embodiment of the present invention; FIG. VI-VI in Figure 5
7 and 8 are partial cross-sections showing an enlarged eccentric ring portion of the rotary pump of the present invention shown in FIG. 5. It is a diagram. 2...Bracket, 4...Housing, 5...Pump chamber, 6...Drive shaft, 7...Data, 8...Vane, 2°...Rotary pump, 21.22 ...Eccentric ring portion, 21a, 22a--Sliding surface, i.e., chiteha surface, 2
1b. 21b... end surface. Note that the same reference numerals in the figures indicate the same or equivalent parts. Figure 5'X] Figure 6 2 13

Claims

[Scope of utility model registration request]

In a vane-shaped rotary pump: - a rotor connected to a drive shaft and rotatable within a pump chamber; a plurality of radially slidable vanes attached to the rotor; and axially opposed inner walls of the pump chamber; an eccentric ring portion formed in a protruding manner, the outer circumferential surface of each of the eccentric ring portions being formed as an inclined surface forming an obtuse angle with the end surface thereof, and the eccentric ring portion of the vane being in contact with the inclined surface of the eccentric ring portion; A rotary pump characterized in that a bottom sliding surface of the vane is also formed as an obtuse inclined surface that is the same as the inclined surface of the eccentric ring.