JPS58139595U

JPS58139595U - Variable discharge volume vane pump

Info

Publication number: JPS58139595U
Application number: JP3587882U
Authority: JP
Inventors: 松本　奉昭; 広川　昇; 富男大后
Original assignee: 株式会社不二越
Priority date: 1982-03-16
Filing date: 1982-03-16
Publication date: 1983-09-20

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１ａ図は従来の可変吐出量ベーンポンプの縦断面図、
第１ｂ図は第１ａ図とは異る従来の可変吐出量ベーンポ
ンプの要部断面図、第２図と第３図とは本考案のそれぞ
れ異る実施例を示す断面図、第３ａ図は第３図の３ａ−
３ａ線からみた側板の平面図、第４図乃至第６図は第２
図および第３図とはさらにそれぞれ別異の本考案の実施
例を示す要部断面図である。１・・・・・・ベーン、２・・・・・・ロータ、３・・
・・・・リング、４．５・・・・・・側板、６・・・・
・・ヘッド側軸受、７・・・・・・シャフト側軸受、８
・・・・・・シャフト、１０・・・・・・ドレン出口、
１１・・・・・・連通孔、１５・・・・・・放射方向油
路、Ｃ・・・・・・唯一のドレン通路。FIG. 1a is a longitudinal sectional view of a conventional variable discharge amount vane pump;
Figure 1b is a cross-sectional view of the main parts of a conventional variable discharge vane pump that is different from Figure 1a, Figures 2 and 3 are cross-sectional views showing different embodiments of the present invention, and Figure 3a is a cross-sectional view of a conventional variable discharge vane pump. 3a- in Figure 3
The plan view of the side plate seen from line 3a, Figures 4 to 6 are
FIG. 3 is a cross-sectional view of a main part showing an embodiment of the present invention, which is different from FIG. 3 and FIG. 1... Vane, 2... Rotor, 3...
...Ring, 4.5...Side plate, 6...
...Head side bearing, 7...Shaft side bearing, 8
...Shaft, 10...Drain outlet,
11...Communication hole, 15...Radial oil passage, C...Only drain passage.

Claims

[Scope of utility model registration request]

(1) A rotor having a shaft into which a plurality of vanes are inserted so as to be freely removable in the radial direction and supported by a head-side bearing and a shaft-side bearing, a ring surrounding the rotor, two side plates, and a shaft directed toward the center of the rotor. In a variable discharge volume pump that includes a device that changes the pump discharge volume by moving a ring, the shaft is provided with a communication path that communicates from the head side end of the shaft to the vicinity of the inner end of the shaft side bearing. A radial oil passage is provided on the back side of the head-side side plate, and a drain passage leading to the outside of the pump is designed so that the drain passage that communicates the vicinity of the outer end of the shaft-side bearing with the drain outlet passes most of the drain. A variable discharge amount vane pump characterized by being provided in.

(2) The variable discharge amount vane pump according to claim 1, wherein the shaft is hydraulically or mechanically pressed in the axial direction toward the shaft side bearing.