JPS6167026U

JPS6167026U -

Info

Publication number: JPS6167026U
Application number: JP12845685U
Authority: JP
Priority date: 1985-08-23
Filing date: 1985-08-23
Publication date: 1986-05-08
Also published as: JPH0311054Y2

Description

[Brief explanation of drawings]

図面は本考案装置の縦断側面図である。Ｃ…コツク、ｃ_１，ｃ_２…上、下部ブリーザチ
ヤンバ、Ｒ…リリーフ弁、ａ…空気層、１…燃料
タンク、１ａ…上壁、１ｂ…下壁、４…注入口、
５…キヤツプ、７…ブリーザタンク、８…区画板
、９…ブリーザ口、１１_１，１１_２…上、下部小
孔、１２…連通孔、１３…ブリーザパイプ、１８
…排出口、２５…燃料供給装置。 The drawing is a longitudinal sectional side view of the device of the present invention. C...Kottoku, _c1 , _c2 ...Upper, lower breather chamber, R...Relief valve, a...Air layer, 1...Fuel tank, 1a...Upper wall, 1b...Lower wall, 4...Inlet,
5... Cap, 7... Breather tank, 8... Division plate, 9... Breather port, 11 ₁ , 11 ₂ ... Upper and lower small holes, 12... Communication hole, 13... Breather pipe, 18
...Discharge port, 25...Fuel supply device.

Claims

[Scope of utility model registration request]

An inlet 4, which is opened and closed by a cap 5, is provided on the upper wall 1a of the sealed fuel tank 1, and an inlet 4 is provided on the lower wall 1b of the sealed fuel tank 1.
An exhaust port 1 connected to a fuel supply device 25 such as a carburetor
8 are opened respectively, and a breather port 9 is opened in the upper wall 1a to communicate with the air layer a formed in the upper part of the fuel tank 1, and a breather pipe is connected to the breather port 9 to communicate with the atmosphere. 13, and a relief valve R is interposed in the middle of the breather pipe 13, which opens when the pressure in the fuel tank 1 exceeds a predetermined value and allows the evaporated fuel in the tank 1 to be released, A breather tank 7 accommodated in the air layer a is supported on the inner surface of the fuel tank 1, and an upper breather chamber _c1 communicating with the breather port 9 is disposed inside the breather tank 7. A partition plate 8 is provided to divide the upper breather chamber _c1 into a lower breather chamber _c2 located below the upper breather chamber _c1. communicates with the air layer a through an upper small hole ₁₁₁ formed in the upper wall thereof, and through a lower small hole ₁₁₂ formed in the lower wall of the lower breather chamber _C2 , respectively; Further, the upper and lower breather chambers c ₁ and c ₂ are arranged on the partition plate 8 so that the upper and lower breather chambers c ₁ and c ₂ form a labyrinth that communicates between the lower small hole 11 ₂ and the breather port 9. A breather device for a fuel tank, in which a communication hole 12 is formed to be spaced apart from the lower small hole ₁₁₂ and the breather port 9.