JPS5820388U

JPS5820388U - rotary pump

Info

Publication number: JPS5820388U
Application number: JP11634781U
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: 1983-02-08

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 drawings]

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図は本考案の一実施例における回
転ポンプを示す縦断面図、第６図は第５図の■−■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（
ま第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、？・・・ロータ、８・・・ベ
ーン、２０・・・回転ポンプ、２１・・・偏心リング部
、２１ａ・・・摺動面即ちテーパ面、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。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 longitudinal 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 longitudinal sectional view showing the rotary pump in an embodiment of the present invention; A sectional view showing the rotary pump of the present invention taken along the line ■-■ in Figure 5, Figure 7 (
FIG. 6 is an enlarged partial cross-sectional view of the eccentric ring portion of the rotary pump according to the present invention shown in FIG. 5; 2... Bracket, 4... Housing, 5... Pump chamber, 6... Drive shaft, ? . . . Rotor, 8 . . . Vane, 20 . Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A vane-shaped rotary pump includes a rotor rotatable by being connected to a drive shaft within a pump chamber, a plurality of vanes attached to the rotor and slidable in a radial direction, and a plurality of vanes protruding from an inner wall of the pump chamber on the drive body side. an eccentric ring portion formed therein, an outer circumferential surface of the eccentric ring portion forming an obtuse angle with an end surface thereof, and a lower end that contacts the inclined surface of the eccentric ring at one end of the vane; The edge is formed on an inclined surface having the same inclination angle as the inclined surface, and the lower edge of the inclined surface of the eccentric ring portion is located at the bottom of the vane by the dimension on the garment of the maximum dimension and minimum dimension from the drive shaft. A rotary pump characterized by being located in a position that is downwardly radially inward.