JPH0391229U

JPH0391229U -

Info

Publication number: JPH0391229U
Application number: JP15180589U
Authority: JP
Priority date: 1989-12-29
Filing date: 1989-12-29
Publication date: 1991-09-18

Description

[Brief explanation of drawings]

第１図から第４図は本考案に係る燃料タンク用
ベーパー排出装置の実施例を示し、第１図は第４
図の要部分解斜視図、第２図は第４図の要部拡大
断面図、第３図は燃料非給油時の状態を第２図に
対応して示した断面図、第４図は燃料タンクまわ
りの全体構造を示した断面図、第５図は他の実施
例を第２図に対応して示した断面図、第６図は従
来の燃料タンク用ベーパー排出装置を示すフユー
エルインレツトパイプまわりの断面図である。３０……燃料タンク、３２……フユーエルイン
レツトパイプ（燃料注入流路）、３４……燃料注
入ガン、３６……ブリーザパイプ（第１のベーパ
ー通路）、３８……キヤニスタ、４０……ベーパ
ー誘導管（第２のベーパー通路）、４２……弁体
、４６……引張コイルスプリング（弾性手段）、
５２……シールゴム（シール部材）、５４……凸
部（当接部）。 1 to 4 show an embodiment of the vapor discharge device for a fuel tank according to the present invention, and FIG.
Fig. 2 is an enlarged sectional view of the main part of Fig. 4, Fig. 3 is a sectional view corresponding to Fig. 2 when fuel is not refueled, Fig. 4 is a fuel FIG. 5 is a cross-sectional view showing the overall structure around the tank, FIG. 5 is a cross-sectional view showing another embodiment corresponding to FIG. 2, and FIG. 6 is a fuel inlet showing a conventional vapor discharge device for a fuel tank. It is a sectional view around a pipe. 30... Fuel tank, 32... Fuel inlet pipe (fuel injection channel), 34... Fuel injection gun, 36... Breather pipe (first vapor passage), 38... Canister, 40... Vapor Guide pipe (second vapor passage), 42... valve body, 46... tension coil spring (elastic means),
52... Seal rubber (sealing member), 54... Convex portion (contact portion).

Claims

[Scope of utility model registration request]

A fuel tank vapor discharge device that communicates an internal space of a fuel tank with a canister and discharges vapor inside the fuel tank through the canister during fuel refueling, the fuel injection flow path into which a fuel injection gun is inserted during fuel refueling; , a first vapor passage that is opened at the inlet of the fuel injection passage and communicates the inlet of the fuel injection passage with the upper space of the fuel tank; A second vapor passage is opened closer to the passage inlet than the opening of the first vapor passage and communicates the passage inlet of the fuel injection passage with the canister; A first vapor passage is provided to allow fuel to flow into the fuel injection channel from the injection gun and to be slidable in the insertion/extraction direction of the fuel injection gun at a first sliding position on the extraction side of the fuel injection gun. a valve body that isolates the first vapor passage from the second vapor passage and communicates the first vapor passage with the second vapor passage at a second sliding position on the insertion side of the fuel injection gun;
an elastic means for holding the valve body in the first sliding position by elastic force when the fuel injection gun is not inserted into the fuel injection passage; and an elastic means provided on the valve body to hold the fuel injection gun in the fuel injection passage When inserted, the valve body comes into contact with the fuel injection gun and applies a pushing force to the valve body in the insertion direction of the fuel injection gun, thereby positioning the valve body at the second sliding position with the fuel injection gun inserted into the fuel injection flow path. The abutting portion is interposed between the valve body and the fuel injection passage inner wall, and vapor is transferred from between the valve body and the fuel injection passage inner wall to the second vapor passage at the second sliding position of the valve body. A vapor discharge device for a fuel tank, comprising: a seal member for preventing discharge.