JPS5930554U

JPS5930554U - automatic drain fuel filter device

Info

Publication number: JPS5930554U
Application number: JP12453182U
Authority: JP
Inventors: 堀井　彰
Original assignee: 株式会社土屋製作所
Priority date: 1982-08-19
Filing date: 1982-08-19
Publication date: 1984-02-25

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）第３図・・・従来知られている自動排水燃料フ
ィルタ装置の排水電磁弁制御回路の配線図、第４図・・
・この考案の実施例である自動排水燃料フィルタ装置の
縦断面図、第５図・・・その排水電磁弁制御回路の配線
図。１・・・自動排水燃料フィルタ装置、２・・・燃料フィ
ルタ、３・・・水位検出プラグ、４・・・排水電磁弁、
３２・・・マグネット、３３・・・フロート、４５・・
・励磁コイル、ＰｌおよびＰ２・・・Ｎゲートサイリス
タ、ｓｗｌ・・・低位置水位検出リードスイッチ、ｓｗ
２・・・高位置水位検出リードスイッチ。Fig. 1) Fig. 3... Wiring diagram of the drain solenoid valve control circuit of the conventionally known automatic drain fuel filter device, Fig. 4...
・A vertical cross-sectional view of an automatic drainage fuel filter device which is an embodiment of this invention, FIG. 5 . . . A wiring diagram of the drainage solenoid valve control circuit. 1... Automatic drain fuel filter device, 2... Fuel filter, 3... Water level detection plug, 4... Drain solenoid valve,
32...Magnet, 33...Float, 45...
・Exciting coil, Pl and P2...N gate thyristor, swl...Low position water level detection reed switch, sw
2...High position water level detection reed switch.

Claims

[Scope of utility model registration request]

Fuel inlet and outlet, filter body, drain solenoid valve, drain solenoid valve control circuit, one upper and lower reed switch installed in the part that collects water separated by the filter body, and a magnet that opens and closes the reed switch. The reed switch is connected in series to the ground terminals of two sets of voltage dividing resistors provided in the drain solenoid valve control circuit, each equipped with a built-in float, etc., and the switching transistor connected in series to the excitation coil of the drain solenoid valve is turned on. An automatic drainage fuel filter device characterized in that the connection points of the voltage dividing resistors are respectively connected to the gates of two N-gate thyristors to be controlled.