JPS599191U

JPS599191U - vane pump

Info

Publication number: JPS599191U
Application number: JP10434382U
Authority: JP
Inventors: 杉山　三二
Original assignee: Mitsubishi Motors Corp
Current assignee: Mitsubishi Motors Corp
Priority date: 1982-07-12
Filing date: 1982-07-12
Publication date: 1984-01-20

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) [Abstract] 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と本考案の実施例に係るベ
ーンポンプの吐出油量Ｑ−回転数Ｎ特性を比較して示す
特性図、第２図は本考案の実施例を示す横断面図、第３
図はその縦断面図である。　　−図面中、１は筐体、２
はリング、３はロータ、８はポンプ室、１０は高圧側密
閉室、１１は低圧側密閉室、１２はスプリング機構、２
１は吐出口、２２は絞りである。Fig. 1 is a characteristic diagram showing a comparison of discharge oil amount Q vs. rotation speed N characteristics of a conventional vane pump and a vane pump according to an embodiment of the present invention; Fig. 2 is a cross-sectional view showing an embodiment of the present invention; 3
The figure is a longitudinal cross-sectional view. - In the drawings, 1 is the housing, 2
is a ring, 3 is a rotor, 8 is a pump chamber, 10 is a high pressure side sealed chamber, 11 is a low pressure side sealed chamber, 12 is a spring mechanism, 2
1 is a discharge port, and 22 is a diaphragm.

Claims

[Scope of utility model registration request]

By arranging the ring within the housing so as to be able to move freely in the left and right direction, sealed chambers surrounded by the ring and the housing are formed on both left and right sides of the ring, and
A pump chamber is formed by providing a rotor within the ring so that the center of rotation is not displaced, and a spring mechanism is further provided that biases the ring in a direction where the amount of oil delivered from the pump chamber is maximized; A restriction is formed in the discharge port communicating with the pump chamber, and hydraulic pressure is applied to the ring in a direction that increases the hydraulic pressure in the sealed chamber of the two sealed chambers, thereby decreasing the amount of oil delivered from the pump chamber. While communicating between one of the sealed chambers that acts and the space on the pump chamber side from the throttle, 1. A vane pump characterized in that the other sealed chamber communicates with a space located closer to the opening of the discharge port than the throttle.