JPS615385U

JPS615385U - vane pump

Info

Publication number: JPS615385U
Application number: JP8987384U
Authority: JP
Inventors: 常雄田中; 俊文酒井
Original assignee: 豊田工機株式会社
Priority date: 1984-06-15
Filing date: 1984-06-15
Publication date: 1986-01-13

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図は本考案ベーンポンプの一実施例の縦断面図、第
２図は第１図の■一■線矢視断面図、第３図は第２図の
ベーン２１、ロータ２２の部分の展開断面図、第４図は
第３図の作動状況を示す展開断面図、第５図は本考案の
実施例に基づく実験結果のグラフ図、第６図は従来装置
を示す第３図に対応した展開断面図、第７図は第６図の
作動状況を示す展開断面図である。１０・・・・・・ポンプハウシング、１４・・・・・・
カムリング、１５，１６・・・・・・サイドプレート、
２０・・・・・・カム面、２ｉ−−−−−−ベーン、２
２・・・・・・ロータ、２５，２６・・・・・・吸入ポ
ート、２７，２８・・・・・・吐出ポート、３７，３８
・・・・・・ベーン背圧みそ。Fig. 1 is a longitudinal cross-sectional view of one embodiment of the vane pump of the present invention, Fig. 2 is a cross-sectional view taken along the line ■--■ in Fig. 1, and Fig. 3 is an exploded view of the vane 21 and rotor 22 portions of Fig. 2. 4 is a developed sectional view showing the operating status of FIG. 3, FIG. 5 is a graph of experimental results based on the embodiment of the present invention, and FIG. 6 corresponds to FIG. 3 showing the conventional device. FIG. 7 is a developed sectional view showing the operating condition of FIG. 6. 10...Pump housing, 14...
Cam ring, 15, 16... side plate,
20...Cam surface, 2i---Vane, 2
2... Rotor, 25, 26... Suction port, 27, 28... Discharge port, 37, 38
・・・・・・Vane back pressure miso.

Claims

[Scope of Claim for Utility Model Registration] A pump housing and a product housed in the pump housing. a rotatable rotor that holds a plurality of vanes that are in sliding contact with the cam surface; A suction port, a discharge boat, and a side plate in which a vane back pressure groove communicating with the discharge port is formed, and the side plate has a section corresponding to the preloading process from the discharge boat starting end to the suction port ending end. In a vane pump having a sinker that extends towards the vane, the length of the sinker is set to be smaller than the dimension obtained by subtracting the vane pitch from the angular width formed by the end end of the suction port and the start end of the discharge port plus the thickness of the vane. A vane pump that is characterized by: