JPS59174385U

JPS59174385U - vane pump

Info

Publication number: JPS59174385U
Application number: JP6757283U
Authority: JP
Inventors: 森永　明; 塩原　英康
Original assignee: 厚木自動車部品株式会社
Priority date: 1983-05-06
Filing date: 1983-05-06
Publication date: 1984-11-21

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図は従来のベーンポンプを示す縦断面図、第２図は
第１図における■−■線断面図、第３図は第２図におけ
る■−■線断面図、第４図は本考案に係るベーンポンプ
の一実施例を示す縦断面図、第５図は第４図における■
−■線断面図、第６図は第５図におけるＶｌ−ＶＩ線断
面図、第７図はカムリング固定部をカムリング側に設け
た場合の実施例を示す断面図である。１・・・・・・ベーンポンプ、２・・・・・・回転軸、
３・・・・・田−タ、３ａ・・・・・・外周面、４・・
・・・・ベーン、５・・・・・・カムリング、５ａ・・
・・・・外周面、５ａ１・・・・・・外周面一端縁、５
ｂ・・・・・・一端面、５ｃ・・・・・・他端面、５ｄ
・・・・・・内周カム面、６・・・・・・ケーシング、
６ａ・・・・・・内側壁部、６ｂ・・・・・・内周面、
６ｃ・・・・・・凹部、９・・・・・・サイドプレート
、９ａ・・・・・・−側壁部、１０・・・・・・吸入室
、１１．１２−−−−−−ポツプ室、１３ａ、１３ｂ、
１４ａ。１４ｂ・・・・・・フロント側及びリヤ側の各吸入ボー
ト、１５・・・・・・吸入通路、１９・・・・・・環状
空隙部、２０゜２０Ａ・・・・・・カムリング固定部。Figure 1 is a longitudinal cross-sectional view showing a conventional vane pump, Figure 2 is a cross-sectional view taken along the line ■-■ in Figure 1, Figure 3 is a cross-sectional view taken along the line ■-■ in Figure 2, and Figure 4 is a cross-sectional view taken along the line ■-■ in Figure 2. FIG. 5 is a vertical sectional view showing one embodiment of such a vane pump, and FIG.
6 is a sectional view taken along the line Vl-VI in FIG. 5, and FIG. 7 is a sectional view showing an embodiment in which a cam ring fixing portion is provided on the cam ring side. 1... Vane pump, 2... Rotating shaft,
3...Data, 3a...Outer surface, 4...
...Vane, 5...Cam ring, 5a...
...Outer peripheral surface, 5a1...One end edge of outer peripheral surface, 5
b...One end surface, 5c...Other end surface, 5d
...Inner cam surface, 6...Casing,
6a...Inner wall part, 6b...Inner peripheral surface,
6c... Recess, 9... Side plate, 9a... Side wall, 10... Suction chamber, 11.12... Pop Chamber, 13a, 13b,
14a. 14b... Front side and rear side suction boats, 15... Suction passage, 19... Annular cavity, 20° 20A... Cam ring fixing part .

Claims

[Scope of utility model registration request]

(1) A casing having a recess formed at one end, a cam ring housed in the recess of the casing with one end surface touching the inner wall of the recess, and a plurality of vanes housed inside the cam ring. , a rotor mounted so as to be retractable in a substantially radial direction, and a side plate whose side wall portion is in contact with the other end surface of the cam ring, and provided at a predetermined portion of the inner wall portion of the casing and one side wall portion of the side plate. At each of the front and rear suction ports, a suction chamber is provided between the outer circumferential surface of the cam ring and the inner circumferential surface of the casing for sucking the working fluid led from the suction passage; In a vane pump that communicates with a pair of pump chambers surrounded by a circumferential cam surface, an outer circumferential surface of the rotor, an inner wall of the casing, and one side wall of the side plate, the vane pump is configured to communicate with one end edge of the outer circumferential surface of the cam ring. forming an annular void continuous from the suction chamber across the inner circumferential surface and inner wall of the casing;
The vane pump is further characterized in that the cam ring is fixed to the casing by a cowling fixing portion formed between the outer circumferential surface of the cam ring and the inner circumferential surface of the casing.

(2) The cam ring fixing portion is provided in at least three positions on the inner circumferential surface of the casing in the circumferential direction so as to come into contact with the outer circumferential surface of the cam ring. Vane pump as described in section.

(3) The cam ring fixing portion is provided in at least three positions on the outer circumferential surface of the cam ring in the circumferential direction so as to come into contact with the inner circumferential surface of the casing. Vane pump as described in section.