JPS60110669U

JPS60110669U - Negative pressure automatic fuel tank using permanent magnets

Info

Publication number: JPS60110669U
Application number: JP20000683U
Authority: JP
Inventors: 児玉　清彦; 清野　正
Original assignee: 三國工業株式会社; 東北三國工業株式会社
Priority date: 1983-12-28
Filing date: 1983-12-28
Publication date: 1985-07-26

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図は負圧式自動燃料コックの既に提案されている先
行例を示す図、第２図及び第３図は永久磁石を使用した
本考案の負圧式自動燃料コックの縦断面で第２図はエン
ジン停止時の状態を、第３図はエンジン運転時の状態を
示し、第４図は開弁に伴なう閉弁力の関係を示す。符号の説明＝１・・・・・・上部筐体、２・・・・・・
ダイアフラム、３・・・・・・下部筐体、４・・・・・
・燃料室、５・・・・・・負圧室、６・・・・・・燃料
流入路、７・・・・・・フィルタ、８・・・・・・端面
、９・・・・・・環状突起、１０・・川・開閉弁、１１
゜・・・・・・燃料流出路、１２・・曲スプリング、１
３・・間磁性体部材、１４・・・・・・負圧通路、１５
・・・・・・逆止弁、１６・・・・・・永久磁石、１７
・・曲エアベント、１８・・・・・・燃料。Figure 1 is a diagram showing an already proposed prior example of a negative pressure type automatic fuel cock, and Figures 2 and 3 are longitudinal sections of the negative pressure type automatic fuel cock of the present invention using a permanent magnet. FIG. 3 shows the state when the engine is stopped, FIG. 3 shows the state when the engine is running, and FIG. 4 shows the relationship between the valve closing force associated with opening the valve. Explanation of symbols = 1...Top casing, 2...
Diaphragm, 3...Lower housing, 4...
・Fuel chamber, 5... Negative pressure chamber, 6... Fuel inflow path, 7... Filter, 8... End face, 9...・Annular protrusion, 10... River/opening/closing valve, 11
゜・・・Fuel outflow path, 12...Bent spring, 1
3...Interval magnetic material member, 14...Negative pressure passage, 15
...Check valve, 16...Permanent magnet, 17
...Curved air vent, 18...Fuel.

Claims

[Scope of utility model registration request]

(1) In a negative pressure automatic fuel cock that automatically opens and closes depending on the generation and disappearance of negative air pressure in the engine as the engine starts and stops, the diaphragm 2 to which the magnetic member 13 is attached is connected to the diaphragm 2. The diaphragm 2 and the upper housing 1 form a fuel chamber 4.
A negative pressure chamber 5 is defined by the diaphragm 2 and the lower housing 3, and a lower end surface 8 of a fuel inlet passage 6 that hangs down from the internal top surface of the upper housing 1 into the fuel chamber 4. is opposed to the diaphragm 2 and cooperates with the diaphragm 2 to form an on-off valve 10 for the fuel inflow passage 6, and a diaphragm 2 forming the on-off valve 10 is provided in the negative pressure chamber 5.
A spring 12 that biases the on-off valve 10 in the closing direction.
and a permanent magnet 16 that attracts and biases the on-off valve 10 in the opening direction.
A negative pressure type automatic fuel cock using a permanent magnet, and having a negative pressure passage 14 opening in the negative pressure chamber 5 for guiding intake negative pressure of the engine.

(2) A negative pressure automatic fuel cock using a permanent magnet according to claim (1), wherein the magnetic member 13 forms a spring receiver for the diaphragm 2.

(3) A check valve 15 is provided at the opening of the negative pressure passage 14 that guides the negative pressure in the negative pressure chamber 5 to the negative pressure side. A negative pressure automatic fuel cock using a permanent magnet according to claim (1) of the above-mentioned utility model registration.