JPS6084785U

JPS6084785U - Vane pump for power steering equipment

Info

Publication number: JPS6084785U
Application number: JP17596483U
Authority: JP
Inventors: 二葉　武四; 島村　剛毅; 西田　公洋
Original assignee: 光洋精工株式会社
Priority date: 1983-11-16
Filing date: 1983-11-16
Publication date: 1985-06-11

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図は本考案の第１実施例正断面図、第２図は第１図
の右側サイドプレート左側面図、第３図は第１図のカム
リング部側断面図、第４図は第１図の左側サイドプレー
ト右側面図、第５図は第１図のカムリフト変化量と吸入
ポート、吐出ポートの位置関係を示すグラフ、第６図は
ベーン張出し溝の他の実施例の第２図相当図、第７図、
第８図はベーン張出し溝の更に他の実施例の第２図、第
４図相当図、第９図は本考案の第２実施例正断面図、第
１０図は第９図の右側サイドプレートの左側面図、第１
１図は第９図のカムリング部側断面図、第１２図は第９
図の左側サイドプレートの右側面図、第１３図、第１４
図はベーン張出し溝の他の実施例の第１０図、第１２図
相当図、第１５図はベーン張出し溝の更に他の実施例の
第１０図相当図である。　　　− １，３１・・・・・・ハウジング、２，３２・・・・・
・シャフト、３ｔ　　３３・・・・・・ロータ、４・・
・・・・ベーン、５・・・・・・カムリング、６，７，
３４，４５・・・・・・サイドプレでト、８ａｔ　　８
ｂｔ　　１０ａｔ　　１０ｂｔ　　４３ａｔ　　４３　
ｂｙ　　４４　ａ、　　４４　ｂ−−−−−−吸入ポー
ト、９ａ、９ｂ、１１ａ、１１ｂｔ　　３５ａｔ　　３
５ｂ、３６ａ。３６ｂ・・・・・・吐出ポート、１９，４１・・・・・
・パワステギヤ、２０．４２・・・・・・油圧反力室、
２１ａ、２１ｂ、２２ａ、＝２２ｂ、２３ａｔ　　２３
ｂ、４６ａ。４６ｂ、４７ａ、４７ｂ、４８ａ、４８ｂ、５２ａ、５
２ｂ、５４ａ、５４ｂ、５５ａ、５５ｂ・・・・・・ベ
ーン張出し溝。第７図　　　　　第８図２２ｂＩ１ｇ２３ｂ「−ｍ−−１山Fig. 1 is a front sectional view of the first embodiment of the present invention, Fig. 2 is a left side view of the right side plate of Fig. 1, Fig. 3 is a side sectional view of the cam ring part of Fig. The right side view of the left side plate in the figure, Figure 5 is a graph showing the cam lift change amount and the positional relationship of the suction port and discharge port in Figure 1, and Figure 6 corresponds to Figure 2 of another example of the vane extending groove. Figure 7,
Fig. 8 is a view corresponding to Fig. 2 and Fig. 4 of still another embodiment of the vane overhang groove, Fig. 9 is a front sectional view of the second embodiment of the present invention, and Fig. 10 is a right side plate of Fig. 9. Left side view, 1st
Figure 1 is a side sectional view of the cam ring in Figure 9, and Figure 12 is a side sectional view of the cam ring in Figure 9.
Right side view of the left side plate in the figure, Figures 13 and 14
The figures are views corresponding to FIG. 10 and FIG. 12 of another embodiment of the vane overhanging groove, and FIG. 15 is a view equivalent to FIG. 10 of still another embodiment of the vane overhanging groove. - 1, 31... Housing, 2, 32...
・Shaft, 3t 33... Rotor, 4...
...Vane, 5...Cam ring, 6,7,
34,45...Side play, 8at 8
bt 10at 10bt 43at 43
by 44 a, 44 b---- Intake port, 9a, 9b, 11a, 11bt 35at 3
5b, 36a. 36b...Discharge port, 19,41...
・Power steering gear, 20.42...Hydraulic reaction chamber,
21a, 21b, 22a, = 22b, 23at 23
b, 46a. 46b, 47a, 47b, 48a, 48b, 52a, 5
2b, 54a, 54b, 55a, 55b... Vane extension groove. Figure 7 Figure 8 22bI1g23b "-m--1 Mountain

Claims

[Scope of utility model registration request]

(1) In a vane pump, a rotor is attached to a shaft rotatably mounted in a housing, and a vane is fitted into the rotor so that it can slide along the inner surface of a cam ring. A vane pump for a power steering device, in which two pairs of discharge ports are provided, and pressure oil from each pair of discharge ports is combined and guided to a power steering gear and a hydraulic reaction chamber.

(2) The pump device according to claim 1, which is a registered utility model, wherein the same pressure oil as that at the discharge port portion is guided to the vane extending groove at the discharge position.