JPH0261173U - - Google Patents
Info
- Publication number
- JPH0261173U JPH0261173U JP14137788U JP14137788U JPH0261173U JP H0261173 U JPH0261173 U JP H0261173U JP 14137788 U JP14137788 U JP 14137788U JP 14137788 U JP14137788 U JP 14137788U JP H0261173 U JPH0261173 U JP H0261173U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- communication passage
- passage
- solenoid valve
- communication
- 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 11
- 238000010926 purge Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Description
第１図は、本考案の第１実施例を示す蒸発燃料
処理装置を備えたエンジンのシステム構成図であ
る。第２図は、第１図に示す連通制御弁の縦断面
説明図である。第３図は、第２図に示す連通制御
弁の作動特性を示す図である。第４図は、本考案
の第２実施例を示す蒸発燃料処理装置のシステム
構成図である。
ＣＥ……エンジン、Ｆ……蒸発燃料処理装置、
１３……エアフローメータ、１４……スロツトル
弁、１５……サージタンク、１６……独立吸気通
路、１７……燃料噴射弁、１８……燃料タンク、
１９……蒸発燃料排出通路、２２……圧力コント
ロール弁、２３……キヤニスタ、２４……燃料パ
ージ用電磁弁、２５……連通制御弁、２６……連
通路、４０……連通制御弁（第２実施例）、４１
，４２，４３……第１、第２、第３連通路（第２
実施例）。
FIG. 1 is a system configuration diagram of an engine equipped with an evaporative fuel processing device showing a first embodiment of the present invention. FIG. 2 is an explanatory longitudinal cross-sectional view of the communication control valve shown in FIG. 1. FIG. 3 is a diagram showing the operating characteristics of the communication control valve shown in FIG. 2. FIG. 4 is a system configuration diagram of an evaporated fuel processing apparatus showing a second embodiment of the present invention. CE...Engine, F...Evaporative fuel processing device,
13... Air flow meter, 14... Throttle valve, 15... Surge tank, 16... Independent intake passage, 17... Fuel injection valve, 18... Fuel tank,
19...Evaporative fuel discharge passage, 22...Pressure control valve, 23...Canister, 24...Fuel purge solenoid valve, 25...Communication control valve, 26...Communication passage, 40...Communication control valve (No. 2 Examples), 41
, 42, 43...first, second, third communication passages (second
Example).
Claims (1)
けられるとともに、該連通路に、所定の運転領域
で開弁され上記連通路を通してキヤニスタ内の燃
料を吸気通路にパージする燃料パージ用電磁弁が
設けられたエンジンにおいて、 燃料パージ用電磁弁下流の連通路に、燃料パー
ジ用電磁弁が開弁さない運転領域では、吸気負圧
により閉弁されて連通路を閉止する連通制御弁が
設けられたことを特徴とするエンジンの蒸発燃料
処理装置。[Claims for Utility Model Registration] A communication passage is provided that communicates the intake passage with the canister, and the communication passage is opened in a predetermined operating range to purge fuel in the canister into the intake passage through the communication passage. In an engine equipped with a fuel purge solenoid valve, in the operating range where the fuel purge solenoid valve does not open, the valve is closed due to intake negative pressure in the communication passage downstream of the fuel purge solenoid valve, thereby closing the communication passage. An evaporative fuel processing device for an engine, characterized in that it is provided with a communication control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14137788U JPH0261173U (en) | 1988-10-28 | 1988-10-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14137788U JPH0261173U (en) | 1988-10-28 | 1988-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0261173U true JPH0261173U (en) | 1990-05-07 |
Family
ID=31406379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14137788U Pending JPH0261173U (en) | 1988-10-28 | 1988-10-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0261173U (en) |
-
1988
- 1988-10-28 JP JP14137788U patent/JPH0261173U/ja active Pending
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