JPS59116550U

JPS59116550U - Idle speed control device

Info

Publication number: JPS59116550U
Application number: JP1057483U
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
Also published as: JPS6233973Y2

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■−ｍ線断面図、第４図
はＩＶ−ＩＶ線からストッパを見た拡大図、第５図はコ
イルとマグネットの作動を説明する概略図、第６図はコ
イル電流と弁体回転角との関係を示すグラフ、第７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８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９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１０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１１図はエンジン停止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１２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、８５・・・冷却媒体室、８８
・・・断熱材。イ　　’Ｃｔ＜　　９０＋ハメバ１メγル；五ＪＬ　Ｌ　ＬＪ　　　　　　　　　　　
　　　　　　　、１″イ／タル呼１争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 taken along the line ■-m. Fig. 4 is an enlarged view of the stopper viewed from line IV-IV, Fig. 5 is a schematic diagram explaining the operation of the coil and magnet, Fig. 6 is a graph showing the relationship between coil current and valve body rotation angle, and Fig. 6 is a graph showing the relationship between coil current and valve body rotation angle. Figure 7 is a graph showing the relationship between bimetal temperature and bimetal rotation angle, Figure 8 is a graph showing the relationship between bimetal temperature and valve opening, and Figure 9 is a graph showing the relationship between engine water temperature and target idle speed. Graphs, Figure 10 is a diagram showing changes in engine water temperature and bimetal temperature when the vehicle is running and warmed up, Figure 11 is a diagram showing the decreasing characteristics of engine water temperature and bimetal temperature after the engine is stopped, and Figure 12 is a graph showing the change in engine water temperature and bimetal temperature when the vehicle is running and warmed up. 1 is a configuration diagram showing a portion of an engine equipped with an idle speed control device of the invention; FIG. 58... Rotary solenoid, 74... Temperature-sensitive regulation means, 82... Bimetal, 85... Cooling medium chamber, 88
...Insulation material. I'Ct< 90+ Hamebar 1 Megamma; 5 JL L LJ
, 1″I/Tal call 1 battle

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 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 coolant chamber provided adjacent to the temperature-sensing section and into which a coolant for cooling a predetermined part of the engine is guided; and a heat insulator surrounding the coolant chamber. An idle rotation speed control device comprising: