JPH0333721U - - Google Patents
Info
- Publication number
- JPH0333721U JPH0333721U JP9199589U JP9199589U JPH0333721U JP H0333721 U JPH0333721 U JP H0333721U JP 9199589 U JP9199589 U JP 9199589U JP 9199589 U JP9199589 U JP 9199589U JP H0333721 U JPH0333721 U JP H0333721U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- refueling
- fuel tank
- pressure
- fuel vapor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 12
- 239000002828 fuel tank Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 3
- 230000037431 insertion Effects 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
第１図乃至第４図は本考案の一実施例を示すも
ので、第１図は本考案の燃料蒸発ガス排出規制装
置の構成を示すブロツク図、第２図はその要部を
示す拡大断面図、第３図はタンク内圧と、タンク
内の燃料蒸気量との関係を示す燃料蒸気量特性図
、第４図はキヤニスタ４を通過する空気量とそこ
で捕捉される燃料成分量との関係を示す燃料捕捉
量の特性図、第５図は従来の燃料蒸発ガス排出規
制装置の構成を示すブロツク図である。
１…フイラーパイプ、２…ヒユーエリングスイ
ツチ、３…ベントチユーブ、４…キヤニスタ、５
…燃料タンク、６…ヒユーエリングバルブ、７…
圧力制御弁。
Figures 1 to 4 show one embodiment of the present invention. Figure 1 is a block diagram showing the configuration of the fuel evaporative gas emission control device of the present invention, and Figure 2 is an enlarged cross-sectional view showing the main parts thereof. Figure 3 is a fuel vapor amount characteristic diagram showing the relationship between the internal pressure of the tank and the amount of fuel vapor in the tank, and Figure 4 is a graph showing the relationship between the amount of air passing through the canister 4 and the amount of fuel components captured therein. FIG. 5 is a block diagram showing the configuration of a conventional fuel evaporative gas emission control device. 1...Filler pipe, 2...Hueling switch, 3...Vent tube, 4...Canister, 5
...Fuel tank, 6...Hueling valve, 7...
Pressure control valve.
Claims (1)
ンの挿入を検知する検知手段を設け、上記燃料タ
ンク内の上方空間と燃料蒸気を吸着して大気への
散逸を防止する燃料蒸気補捉手段とを接続するベ
ントチユーブの途中に給油弁を配設し、給油の際
に、前記検知手段からの給油ガン挿入検知信号に
より前記給油弁を開弁させ、燃料増量に伴い圧力
上昇する上記燃料タンク内の燃料蒸気を含む空気
を上記ベントチユーブを介して上記燃料蒸気捕捉
手段へ流出させる燃料蒸気排出規制装置において
、上記燃料タンクと給油弁との間のベントチユー
ブに、上記燃料タンク内の上方空間の圧力を大気
圧より高い所定値に保持する圧力調節手段を設け
たことを特徴とする燃料タンクの燃料蒸気排出規
制装置。 A detection means for detecting the insertion of a refueling gun is provided in a filler pipe that is open only at the upper and lower ends, and the upper space in the fuel tank is connected to a fuel vapor capture means that adsorbs fuel vapor and prevents it from dissipating into the atmosphere. A refueling valve is disposed in the middle of the vent tube, and when refueling, the refueling valve is opened by a refueling gun insertion detection signal from the detection means, and the fuel in the fuel tank whose pressure increases as the amount of fuel increases. In a fuel vapor emission control device that causes air containing vapor to flow out to the fuel vapor capture means via the vent tube, the vent tube between the fuel tank and the refueling valve is provided with pressure in the upper space within the fuel tank. 1. A fuel vapor emission control device for a fuel tank, characterized in that a pressure regulating means is provided to maintain the pressure at a predetermined value higher than atmospheric pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989091995U JP2522651Y2 (en) | 1989-08-04 | 1989-08-04 | Fuel vapor emission control device for fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989091995U JP2522651Y2 (en) | 1989-08-04 | 1989-08-04 | Fuel vapor emission control device for fuel tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0333721U true JPH0333721U (en) | 1991-04-03 |
| JP2522651Y2 JP2522651Y2 (en) | 1997-01-16 |
Family
ID=31641445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989091995U Expired - Lifetime JP2522651Y2 (en) | 1989-08-04 | 1989-08-04 | Fuel vapor emission control device for fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2522651Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05193522A (en) * | 1992-01-18 | 1993-08-03 | Mazda Motor Corp | Lower part car body structure of automobile |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5430121U (en) * | 1977-07-30 | 1979-02-27 | ||
| JPS6416924U (en) * | 1987-07-16 | 1989-01-27 |
-
1989
- 1989-08-04 JP JP1989091995U patent/JP2522651Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5430121U (en) * | 1977-07-30 | 1979-02-27 | ||
| JPS6416924U (en) * | 1987-07-16 | 1989-01-27 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05193522A (en) * | 1992-01-18 | 1993-08-03 | Mazda Motor Corp | Lower part car body structure of automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2522651Y2 (en) | 1997-01-16 |
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