JPS59116548U

JPS59116548U - Idle speed control device

Info

Publication number: JPS59116548U
Application number: JP1057283U
Authority: JP
Inventors: 大橋　通宏; 清晴中川
Original assignee: トヨタ自動車株式会社
Priority date: 1983-01-27
Filing date: 1983-01-27
Publication date: 1984-08-06

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 drawings]

第１図は従来のアイドル回転数制御装置の一例を示す構
成図、第２図は本考案のアイドル回転数制御装置の一例
を示す縦断面図、第３図はその■−■線断面図、第４図
はＩＶ−ＩＶ線から見たストッパの拡大図、第５図Ａは
第２図の伝熱フィンの平面図、第５図Ｂは同じく正面図
、第６図はコイルとマグネットの作動を説明する概略図
、第７図はコイル電流と弁体回転角との関係を示すグラ
フ、第８図はバイメタル温度とバイメタル回転角度との
関係を示すグラフ、第９図はバイメタル温度と弁体開度
との関係を示すグラフ、第１０図はエンジン水温と目標
アイドル回転数との関係を示すグラフ、第１１図は車両
走行時、暖機時におけるエンジン水温とバイメタル温度
の変化を示す図、第１２図はエンジン停心後のエンジン
水温とバイメタル温度の下降特性を示す図、第１３図は
本考案のアイドル回転数制御装置を搭載したエンジンの
一部分を示す構成図である。５８・・・回転型ソレノイド、７４・・・感温規制手段
、８２・・・バイメタル、８８・・・冷却媒体室、９０
・・・伝熱フィン。コイルｔ；丸（Ａ）？・・［第８図　　− ）でイメクル号Ｕ！　　（Ｔｈ）FIG. 1 is a configuration diagram showing an example of a conventional idle speed control device, FIG. 2 is a longitudinal cross-sectional view showing an example of the idle speed control device of the present invention, and FIG. 3 is a cross-sectional view along the line ■-■. Figure 4 is an enlarged view of the stopper seen from the IV-IV line, Figure 5A is a plan view of the heat transfer fin in Figure 2, Figure 5B is a front view, and Figure 6 is the operation of the coil and magnet. Fig. 7 is a graph showing the relationship between coil current and valve body rotation angle, Fig. 8 is a graph showing the relationship between bimetal temperature and bimetal rotation angle, and Fig. 9 is a graph showing the relationship between bimetal temperature and valve body rotation angle. A graph showing the relationship with the opening degree, FIG. 10 a graph showing the relationship between engine water temperature and target idle rotation speed, and FIG. 11 a graph showing changes in engine water temperature and bimetal temperature when the vehicle is running and warmed up. FIG. 12 is a diagram showing the decreasing characteristics of the engine water temperature and bimetal temperature after the engine stops, and FIG. 13 is a block diagram showing a part of the engine equipped with the idle speed control device of the present invention. 58... Rotary solenoid, 74... Temperature-sensitive regulation means, 82... Bimetal, 88... Cooling medium chamber, 90
...heat transfer fins. Coil t; circle (A)? ...Imekuru U at [Figure 8-)! (Th)

Claims

[Scope of utility model registration request]

A valve body that controls the amount of air passing through the bypass intake passage that connects the upstream and downstream sides of the intake throttle valve, and a rotation that drives the valve body so that a target idle speed corresponding to the engine operating state is obtained. type electromagnetic drive device, and a temperature sensing part that operates according to the ambient temperature and the warm-up state of the engine, and the amount of operation of the valve body by the rotary type electromagnetic drive device is determined according to the amount of operation of the temperature sensing part. a temperature-sensitive regulating means for regulating within a predetermined area; a cooling medium chamber provided across a wall forming a chamber in which the temperature-sensing section is housed, into which a cooling medium for cooling a predetermined portion of the resin is guided; An idle rotation speed control device comprising: a heat transfer fin interposed between a bottom surface of the temperature sensing section and an inner bottom surface of the wall.