JPS60142371U

JPS60142371U - Closed loop pressure control device

Info

Publication number: JPS60142371U
Application number: JP2932584U
Authority: JP
Inventors: 藤次　豊; 伊藤　友雄; 内田　忠夫
Original assignee: 株式会社日立製作所; 日立オートモテイブエンジニアリング株式会社
Priority date: 1984-03-02
Filing date: 1984-03-02
Publication date: 1985-09-20

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第゛１図は従来方式に、よる圧力制御装置の縦断側面図
、第２図、第３図、第４図は第１図のＰ部拡大スプール
バルブ位置図、第５図は本考案の一実施例による縦断側
面図、第６図は本考案による圧力特性図、第７図及び第
８図は応用例における縦断側面図である。１・・・コイル、２・・・コア、３・・・プランジャ、
４・・・シャフト、５・・・スプリング、６・・・ボデ
ィ、７・・・スプールバルブ、８・・・アウトレットポ
ート、９・・・フィードバックポート、１０・ｉインレ
ットポート、１１・・・イブジ−ストポート。皐１図Fig. 1 is a vertical sectional side view of a pressure control device according to the conventional method, Figs. FIG. 6 is a pressure characteristic diagram according to the present invention, and FIGS. 7 and 8 are longitudinal side views of an applied example. 1... Coil, 2... Core, 3... Plunger,
4...Shaft, 5...Spring, 6...Body, 7...Spool valve, 8...Outlet port, 9...Feedback port, 10.i inlet port, 11...Ib. -Stoport. Figure 1

Claims

[Scope of utility model registration request]

A core is built into the inner periphery of the coil, and a plunger is provided on the side surface to be attracted to the core, and one end of the shaft press-fitted into the center of the plunger is provided with a spring to resist the attraction force. The end side of the spool valve is in contact with one end surface of the spool valve, which slides inside the body and has a diameter that is one step narrower at the center, and the other end surface of the spool valve has the above-mentioned A closed loop pressure control device that feeds back the pressure of an outlet port and controls the pressure by electromagnetic force, characterized in that a pressure damper is provided at a pressure port that is applied to the spool valve. .゛