JPS6328862U

JPS6328862U -

Info

Publication number: JPS6328862U
Application number: JP12322786U
Authority: JP
Priority date: 1986-08-11
Filing date: 1986-08-11
Publication date: 1988-02-25

Description

[Brief explanation of the drawing]

第１図ないし第５図は本考案の自動車エンジン
における制御弁の開度検出装置の実施例を示し、
第１図はその一実施例の開度検出装置を含む制御
弁の全体概略図、第２図は開度検出装置の縦断面
図、第３図は第２図の―線断面図、第４図は
抵抗基板の正面図、第５図は本開度検出装置の検
出軸の作動模式図である。第６図は従来の開度検
出装置における検出軸の構造を示す。１……制御弁、４……開度検出装置、５……弁
棒、６……弁体、２０……検出軸、２２……ロツ
ドカラー、２２ｂ……下端外側部、２２ｃ……中
空部底面、２３……センサーロツド、２３ａ……
下端部、３０……ホルダ、３１，３２……ブラシ
。 1 to 5 show an embodiment of the control valve opening detection device for an automobile engine according to the present invention,
Fig. 1 is an overall schematic diagram of a control valve including an opening detection device according to one embodiment, Fig. 2 is a longitudinal sectional view of the opening detection device, Fig. 3 is a sectional view taken along the line - The figure is a front view of the resistance board, and FIG. 5 is a schematic diagram of the operation of the detection shaft of the present opening degree detection device. FIG. 6 shows the structure of a detection shaft in a conventional opening detection device. DESCRIPTION OF SYMBOLS 1... Control valve, 4... Opening degree detection device, 5... Valve stem, 6... Valve body, 20... Detection shaft, 22... Rod collar, 22b... Lower end outer part, 22c... Hollow part bottom surface , 23...sensor rod, 23a...
Lower end, 30... holder, 31, 32... brush.

Claims

[Claims for Utility Model Registration] A detection shaft that is interlocked with a valve stem of a valve body of a control valve that is opened and closed to control the operating state of an automobile engine and that is disposed on the same axis as the valve stem. When the detection shaft is displaced by the valve stem, an electric signal corresponding to the opening degree of the valve body is generated by the contact electric resistance of the brush held in a holder attached to the upper end of the detection shaft. In the opening detection device for a control valve in an automobile engine, the detection shaft is composed of a bottomed cylindrical rod collar and a sensor rod loosely inserted into the hollow part of the rod collar, and the outer lower end of the rod collar is An opening detection device for a control valve, characterized in that the sensor rod is formed into a curved surface, the upper end of the sensor rod is fixed to the holder, and the lower end is in point contact with the bottom surface of the hollow part of the rod collar with a curvature.