JPS6193461U

JPS6193461U -

Info

Publication number: JPS6193461U
Application number: JP17874084U
Authority: JP
Priority date: 1984-11-27
Filing date: 1984-11-27
Publication date: 1986-06-17

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係るエアブリーザ
を燃料タンクに装着した状態を示す断面図、第２
図は第１図における−線断面図、第３図は同
エアブリーザの作動状態を示す断面図、第４図は
従来例に係るエアブリーザの装着および作動状態
を示す断面図である。１……タンク、２……キヤツプ、３……段部、
４……プレート、５……バルブ板、８……ベロー
ズ部、１０……連通孔、１１……第２の連通孔、
１２……シールリツプ、１４……連通切欠、１５
……連通溝、１６……上部室、１７……下部室、
１８……第３の室、１９……第１の空間、２０…
…第２の空間、２１……外側空間、ｏ……燃料。 Fig. 1 is a cross-sectional view showing a state in which an air breather according to an embodiment of the present invention is attached to a fuel tank;
1, FIG. 3 is a sectional view showing the operating state of the air breather, and FIG. 4 is a sectional view showing the mounting and operating state of the conventional air breather. 1...tank, 2...cap, 3...stepped section,
4... Plate, 5... Valve plate, 8... Bellows portion, 10... Communication hole, 11... Second communication hole,
12... Seal lip, 14... Communication notch, 15
...Communication groove, 16...Upper chamber, 17...Lower chamber,
18...Third chamber, 19...First space, 20...
...second space, 21...outer space, o...fuel.

Claims

[Scope of utility model registration request]

A plate is installed horizontally so as to divide the space inside the tank into an upper chamber that communicates with the atmosphere and a lower chamber that accommodates the liquid, a communication hole that communicates both the upper and lower chambers is formed in the plate, and a communication hole is formed in the upper side of the plate. A valve plate made of a flexible material that floats and sinks due to the pressure difference between the upper and lower chambers is mounted, and a third chamber formed between the valve plate and the plate is connected to the valve plate through a communication hole formed in the plate. A second communication hole is formed in the lower surface of the valve plate to communicate with the upper and lower chambers, and the valve plate contacts and separates from the upper surface of the plate by floating motion of the valve plate, and upon contact, the third chamber is connected to the lower surface of the valve plate. , a first space connected to the communication hole formed in the plate, and a second space connected to the second communication hole formed in the valve plate.
1. An air breather characterized in that the air breather is partitioned into a space, and is provided with a seal lip that allows fluid to flow from the second space to the first space and prevents fluid from flowing in the opposite direction.