JPS6069378U

JPS6069378U - vane pump

Info

Publication number: JPS6069378U
Application number: JP16156783U
Authority: JP
Inventors: 寛幸高橋; 安部　隆太郎; 正司山本
Original assignee: 豊田工機株式会社
Priority date: 1983-10-19
Filing date: 1983-10-19
Publication date: 1985-05-16

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]

図面は本考案の実施例を示すもので、第１図はベーンポ
ンプの断面図、第２図は第１図の■−■線に沿って矢視
したサイドプレートの背面図である。１０・・・・・・ポンプハウジング、１２・・・・・・
エンドカバー、１４・・・・・・カムリング、１５．１
６・・・・・・サイトフレート、２１・・・・・・ベー
ン、２２・・・・・・ロータ、２５．２６・・・・・・
吸入ポート、２７．２８・・・・・・吐出ポート、３７
．３８・・・・・・圧力溝、４１．４２・・・・・・リ
ング溝、４３・・・・・・ぬすみ、４５，４６・・・・
・・０リング、４７・・・・・・圧力作用室、４８・・
・・・・圧力導入孔、４９・・・・・・逃がし孔。 □１The drawings show an embodiment of the present invention, and FIG. 1 is a sectional view of a vane pump, and FIG. 2 is a rear view of the side plate taken along the line ■-■ in FIG. 10...Pump housing, 12...
End cover, 14...Cam ring, 15.1
6... Sight plate, 21... Vane, 22... Rotor, 25.26...
Suction port, 27.28...Discharge port, 37
．． 38... Pressure groove, 41.42... Ring groove, 43... Thread, 45, 46...
...0 ring, 47...pressure action chamber, 48...
...Pressure introduction hole, 49...Relief hole. □１

Claims

[Scope of utility model registration request]

A pump housing, a cam ring housed in the pump housing, a pair of side plates arranged on both sides of the cam ring and each having a suction port and a discharge port formed on the surfaces facing the cam ring, and a pair of side plates that slide on the cam surface of the cam ring. A rotor that holds a plurality of contacting vanes on its circumference, and an end cover that has a receiving surface that contacts the back surface of the one side plate and is fixed to one end of the pump housing, Two ring grooves are formed on the back surface of the side plate concentrically with the side plate, a certain amount of clearance is formed in the area surrounded by these two ring grooves, and an O-ring is inserted into each of the ring grooves. A pressure acting chamber with a limited acting area is formed between the side plate and the end cover, and a pressure introduction hole for introducing discharge fluid into the pressure acting chamber is formed in the side plate. A vane pump with a relief hole running through the center in the axial direction.