JPS59116547U

JPS59116547U - Idle speed control device

Info

Publication number: JPS59116547U
Application number: JP1057183U
Authority: JP
Inventors: 和彦白谷
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■−ｍ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図はノ゛＜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１１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。５Ｂ・・・回転型ソレノイド、７４・・・感温規制手段
、８２・・・バイメタル、７５・・・覆い部材、７５ａ
・・・中空層。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 seen 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. A graph showing the relationship, Figure 10 is a diagram showing the decreasing characteristics of the engine water temperature and bimetal temperature after the engine is stopped,
FIG. 11 is a block diagram showing a portion of an engine equipped with the idle speed control device of the present invention. 5B...Rotary solenoid, 74...Temperature-sensitive regulation means, 82...Bimetal, 75...Covering member, 75a
...Hollow layer.

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 sensing regulating means for regulating temperature within a predetermined area; and a covering member surrounding the temperature sensing section, the covering member having a hollow layer formed between the temperature sensing section and the outside air. An idle speed control device featuring: