JPH01170024U

JPH01170024U -

Info

Publication number: JPH01170024U
Application number: JP6200988U
Authority: JP
Priority date: 1988-05-11
Filing date: 1988-05-11
Publication date: 1989-11-30

Description

[Brief explanation of the drawing]

第１〜４図は本考案の実施例を示し、第１図は
燃料タンクＡの縦断面図、第２図は樹脂製タンク
本体１と外皮４のブロー手段によるインサート成
形を示した縦断面図、第３図はインサート成形完
了状態を示した縦断面図、第４図は外皮４の切断
断面図である。第５図は従来装置の切断面図であ
る。Ａ…樹脂製燃料タンク、１…タンク本体、２…
空隙、３…活性炭、４…外皮、５…捕集パイプ、
２３…ベーパ排出管、２４…リリーフバルブ。 1 to 4 show an embodiment of the present invention, FIG. 1 is a longitudinal sectional view of a fuel tank A, and FIG. 2 is a longitudinal sectional view showing insert molding of the resin tank body 1 and outer skin 4 by blowing means. , FIG. 3 is a longitudinal sectional view showing a state in which insert molding is completed, and FIG. 4 is a cutaway sectional view of the outer skin 4. FIG. 5 is a sectional view of a conventional device. A... Resin fuel tank, 1... Tank body, 2...
void, 3... activated carbon, 4... outer skin, 5... collection pipe,
23...Vapor discharge pipe, 24...Relief valve.

Claims

[Scope of Claim for Utility Model Registration] (1) An outer skin forming a void filled with a layer of activated carbon that adsorbs HC that permeates from the tank body is integrally provided on the outer surface of a resin tank body, and the activated carbon filling is A resin canister enclosing fuel tank characterized in that a collection pipe is provided in communication with one or several locations of the gap. (2) On the outer surface of the resin tank body, an outer skin is integrally provided to form voids filled with a layer of activated carbon that adsorbs HC that permeates from the tank body, and HC is trapped in one or several of the voids filled with the activated carbon. In addition to connecting the collection pipe, one end of the vapor discharge pipe, which is equipped with a relief valve that opens at a certain fuel vapor pressure, is inserted into the upper part of the interior of the tank body, and the other end of the vapor discharge pipe is filled with the activated carbon. A fuel tank surrounding a resin canister, characterized in that the fuel tank communicates with a void in the canister.