JPH0417156U - - Google Patents
Info
- Publication number
- JPH0417156U JPH0417156U JP5689290U JP5689290U JPH0417156U JP H0417156 U JPH0417156 U JP H0417156U JP 5689290 U JP5689290 U JP 5689290U JP 5689290 U JP5689290 U JP 5689290U JP H0417156 U JPH0417156 U JP H0417156U
- Authority
- JP
- Japan
- Prior art keywords
- canister
- fuel tank
- fuel
- opens
- operation area
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims description 6
- 239000002828 fuel tank Substances 0.000 claims description 5
- 238000010926 purge Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 1
Description
第１図は本考案の一実施例の蒸発燃料供給装置
を備えたエンジンの全体構成図、第２図はコント
ローラの処理を説明するためのフローチヤート図
、第３図は本考案による燃料タンクの内圧変化例
を比較例と共に示す特性図である。
１……エンジン本体、２……吸気通路、１１…
…燃料タンク、１５……蒸発燃料通路、１６……
圧力バルブ、１７……キヤニスタ、２１……バイ
パス通路、２２……バイパスバルブ、２３……オ
リフイス、２４……開閉手段、２５……パージ通
路、２６……パージバルブ、２８……コントロー
ラ。
Fig. 1 is an overall configuration diagram of an engine equipped with an evaporative fuel supply system according to an embodiment of the present invention, Fig. 2 is a flowchart for explaining the processing of a controller, and Fig. 3 is a diagram of a fuel tank according to the present invention. It is a characteristic diagram showing an example of internal pressure change together with a comparative example. 1...Engine body, 2...Intake passage, 11...
...Fuel tank, 15...Evaporative fuel passage, 16...
Pressure valve, 17...canister, 21...bypass passage, 22...bypass valve, 23...orifice, 24...opening/closing means, 25...purge passage, 26...purge valve, 28...controller.
Claims (1)
る蒸発燃料通路に、燃料タンク側圧力がキヤニス
タ側圧力より所定値以上高くなつたとき開く圧力
バルブを備える一方、キヤニスタに保持した蒸発
燃料を所定のパージ運転領域で吸気通路にパージ
するエンジンの蒸発燃料供給装置において、前記
圧力バルブをバイパスして燃料タンクとキヤニス
タ間を連通するバイパス通路を設け、該バイパス
通路に前記パージ運転領域で開く開閉手段を設け
たことを特徴とするエンジンの蒸発燃料供給装置
。 The evaporated fuel passageway that introduces the evaporated fuel in the fuel tank into the canister is equipped with a pressure valve that opens when the fuel tank side pressure becomes higher than the canister side pressure by a predetermined value. In the evaporative fuel supply system for an engine that purges the intake passage in the purge operation area, a bypass passage is provided that bypasses the pressure valve and communicates between the fuel tank and the canister, and the bypass passage is provided with an opening/closing means that opens in the purge operation area. An evaporative fuel supply device for an engine characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5689290U JPH0417156U (en) | 1990-05-30 | 1990-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5689290U JPH0417156U (en) | 1990-05-30 | 1990-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0417156U true JPH0417156U (en) | 1992-02-13 |
Family
ID=31581122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5689290U Pending JPH0417156U (en) | 1990-05-30 | 1990-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417156U (en) |
-
1990
- 1990-05-30 JP JP5689290U patent/JPH0417156U/ja active Pending
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