JPS6012643U

JPS6012643U - Internal combustion engine idle speed control valve

Info

Publication number: JPS6012643U
Application number: JP10453083U
Authority: JP
Inventors: 柿崎　忠雄; 佐藤　久明
Original assignee: 日本電子機器株式会社
Priority date: 1983-07-07
Filing date: 1983-07-07
Publication date: 1985-01-28
Also published as: JPH0227185Y2

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図はアイドルスピード制御弁の従来例を示しＡは縦
断面図、Ｂは横断面図、第２図は同上の機関温度とリタ
ーンスプリングトルクとの関係を示すグラフ、第３図は
本考案にかかるアイドルスピード制御弁の流量とリター
ンスプリングトルクとの関係を示すグラフ、第４図は同
じく機関温度とリターンスプリングトルクとの関係を示
すグラフである。１・・・流体通路、３・・・弁座、３′・・・シール面
、４・・・弁体、４′・・・シール面、１０・・・アー
マチュア、１２．１３・・・永久磁石、１４・・・リタ
ーンスプリング。Fig. 1 shows a conventional example of an idle speed control valve, A is a longitudinal cross-sectional view, B is a cross-sectional view, Fig. 2 is a graph showing the relationship between engine temperature and return spring torque, and Fig. 3 is a graph of the present invention. FIG. 4 is a graph showing the relationship between the flow rate of the idle speed control valve and the return spring torque, and FIG. 4 is a graph showing the relationship between the engine temperature and the return spring torque. 1... Fluid passage, 3... Valve seat, 3'... Seal surface, 4... Valve body, 4'... Seal surface, 10... Armature, 12.13... Permanent Magnet, 14...Return spring.

Claims

[Scope of utility model registration request]

a fluid passageway opening into a valve seat having a part of the rotating surface as a sealing surface, a valve body having a sealing surface of a part of the rotating surface corresponding to the rotating surface, and a drive device for rotationally driving the valve body; A return spring is interposed between the valve body or a continuous portion thereof and the fixed body, and has a return spring that provides a predetermined valve opening degree when the biasing force in the rotation direction of the valve body becomes zero. An internal combustion engine that controls the flow rate of intake air passing through a bypass passage that communicates upstream and downstream of an intake throttle valve by changing the opening area of a fluid passage that opens to the valve seat as the body rotates, and has a fail-safe function. An idle speed control valve for an internal combustion engine, characterized in that the return spring is constructed of a thermally deformable material so that the predetermined valve opening changes in accordance with changes in ambient temperature.