JPS631977U

JPS631977U -

Info

Publication number: JPS631977U
Application number: JP9571486U
Authority: JP
Priority date: 1986-06-23
Filing date: 1986-06-23
Publication date: 1988-01-08

Description

[Brief explanation of drawings]

第１図および第２図は本考案に係る流量制御弁
の一実施例を示すものであり、第１図は縦断面図
、第２図はデユーテイ比と流量の関係を示すグラ
フ図、第３図は本考案に係る流量制御弁における
排出ガスの圧力の経時変化を示すグラフ図、第４
図は本考案に係る流量制御弁における電磁コイル
部の温度変化を示すグラフ図、第５図は従来の制
御弁を示す縦断面図、第６図は他の従来の制御弁
を示す縦断面図、第７図は従来の制御弁の電磁コ
イル部の温度と流量の関係を示すグラフ図、第８
図は従来の制御弁に通電する電流の波形図である
。符号の説明、１…弁本体、２…流入路、３…流
出路、４…弁座、５…バイパス通路、６…ベース
プレート、７…流入口、８…流出口、９…ソレノ
イドカバー、９ａ…ネジ部、１０…チヤンバ室、
１１…固定鉄心、１１ａ…ネジ部、１２…ナツト
、１３…可動プランジヤ、１３ａ…弁部、１４…
軸受、１５…ヨーク、Ｓ…スプリング、Ｇ…間隙
。 1 and 2 show an embodiment of the flow control valve according to the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a graph showing the relationship between duty ratio and flow rate, and FIG. 3 is a graph showing the relationship between duty ratio and flow rate. Figure 4 is a graph showing the change in exhaust gas pressure over time in the flow control valve according to the present invention.
The figure is a graph showing the temperature change of the electromagnetic coil part in the flow control valve according to the present invention, FIG. 5 is a longitudinal sectional view showing a conventional control valve, and FIG. 6 is a longitudinal sectional view showing another conventional control valve. , Figure 7 is a graph showing the relationship between the temperature and flow rate of the electromagnetic coil section of a conventional control valve.
The figure is a waveform diagram of a current flowing through a conventional control valve. Explanation of symbols: 1...Valve body, 2...Inflow path, 3...Outflow path, 4...Valve seat, 5...Bypass passage, 6...Base plate, 7...Inflow port, 8...Outflow port, 9...Solenoid cover, 9a... Screw part, 10...chamber chamber,
DESCRIPTION OF SYMBOLS 11... Fixed iron core, 11a... Thread part, 12... Nut, 13... Movable plunger, 13a... Valve part, 14...
Bearing, 15...Yoke, S...Spring, G...Gap.

Claims

[Scope of utility model registration request]

A fixed iron core and a movable plunger are arranged coaxially with a slight gap therebetween, and an elastic body is attached to the movable plunger to elastically press the free end of the movable plunger against the valve seat surface, and An electromagnetic coil portion is disposed in contact with the outer periphery of the iron core to form a duty solenoid, and a solenoid cover that keeps the duty solenoid airtight from the outside is separated from the outer periphery of the electromagnetic coil portion. A chamber chamber for forming a flow path is formed between the solenoid cover and the electromagnetic coil portion, and a bypass passage is provided in the valve body to communicate the inflow path on the upstream side of the valve seat with the chamber chamber. A flow control valve characterized by: