JPS6034585U

JPS6034585U - pump equipment

Info

Publication number: JPS6034585U
Application number: JP12717283U
Authority: JP
Inventors: 黒田　朝治; 前田　秀紀
Original assignee: 自動車機器株式会社
Priority date: 1983-08-17
Filing date: 1983-08-17
Publication date: 1985-03-09

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]

図は本考案に係るオイルポンプの一実施例を示すもので
あって、第１図は全体の概略構成を示す縦断面図、第２
図は第１図の■−■線断面図、第３図はりャボデイ側か
ら見た側面図、第４図は吐出側圧力室゛と各バルブ孔と
の関係を余す断面図、第５図は第２図の■−ｖ線断面図
、第６図ないし第９図は回転数・圧力雨感知式制御部の
概略構成を示し、その作動状態を説明するための図、第
１０図ないし第１２図は流量特性とポンプ回転数、消費
馬力とポンプ回転数、消費馬力とポンプ吐出圧力の関係
を示す特性図である。１・・・・・・フロントボディ、２・・・・・・リャホ
ディ、３・・・・・・第１のポンプ、４・・間第２のポ
ンプ、５・・間第１のスプールバルブ（流路切換バルブ
）、６・・・・・・第２のスプールバルブ、７・曲・駆
動軸、８・・曲ポンプ収納空間、１２・・・・・田−タ
、１２ａ・・・・・・ベーン、１３・・・・・・カムリ
ング、１４，１５・・・・・・第１および第２のポンプ
カートリッジ、１６・・曲サイドプレート、１７・・・
・・・第１のポンプ吐出側圧力室、１８・・・・・・プ
レッシャプレート、２ｏ・・曲メイン通路、２１・・・
・・・吐出口、２２・・・・・・サブ通路、２３・・・
・・・吸込口、２５・・・・・・ポンプ吸込側圧力室、
３１．３２・・・・・・バルブ孔、３３・・・・・・通
路孔、３５・・・・・・通路孔、３７・・・・・・バル
ブ孔、３８・・・・・・逆止弁、３９・・・・・・通路
、４０．４１・・・・・・通路溝、４２・・・・・・ダ
ンパオリフィス（小径通路孔）、４３・・曲戻り通路溝
、４５・・・・・・オリフィス、４６．４７・曲・通路
孔、５１．５２・・・・・・スプール、５４・・・・・
・高圧室、５５・・・・・・低圧室。The figures show an embodiment of the oil pump according to the present invention, in which Fig. 1 is a vertical cross-sectional view showing the overall schematic structure, and Fig. 2
The figures are a sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is a side view seen from the cylinder body side, Fig. 4 is a sectional view showing the relationship between the discharge side pressure chamber and each valve hole, and Fig. 5 is a sectional view showing the relationship between the discharge side pressure chamber and each valve hole. A sectional view taken along the line ■-v in FIG. 2, and FIGS. 6 to 9 show the schematic structure of the rotational speed/pressure rain sensing type control unit, and diagrams for explaining its operating state, and FIGS. 10 to 12 The figure is a characteristic diagram showing the relationship between flow rate characteristics and pump rotation speed, horsepower consumption and pump rotation speed, and consumption horsepower and pump discharge pressure. 1...front body, 2...liar body, 3...first pump, 4...second pump, 5...first spool valve ( flow path switching valve), 6... second spool valve, 7... curved drive shaft, 8... curved pump storage space, 12... data, 12a...・Vane, 13...Cam ring, 14, 15...First and second pump cartridges, 16...Curved side plate, 17...
...First pump discharge side pressure chamber, 18...Pressure plate, 2o...Curved main passage, 21...
...Discharge port, 22...Sub passage, 23...
... Suction port, 25 ... Pump suction side pressure chamber,
31.32... Valve hole, 33... Passage hole, 35... Passage hole, 37... Valve hole, 38... Reverse Stop valve, 39... Passage, 40. 41... Passage groove, 42... Damper orifice (small diameter passage hole), 43... Curved return passage groove, 45... ... Orifice, 46.47, curve, passage hole, 51.52 ... Spool, 54 ...
・High pressure chamber, 55...Low pressure chamber.

Claims

[Scope of utility model registration request]

A system that integrates two sets of pumps that discharge pressure fluid separately, and a flow path switching valve that selectively connects one pump to the main passage connecting the discharge port and the other pump via a sub passage. In a pump device equipped with a pump body built into a pump body, the high-pressure chamber side of the flow path switching valve is connected to the main path via a damper orifice, and only when the flow path switching valve is activated, the high pressure chamber side of the flow path switching valve is connected to the main path. A pump device comprising: a check valve that causes the pressure fluid to merge into the main passage; provided in a pump body located between the sub passage and the main passage.