JPS59175662U - Fuel evaporative gas emission control device - Google Patents
Fuel evaporative gas emission control deviceInfo
- Publication number
- JPS59175662U JPS59175662U JP7105383U JP7105383U JPS59175662U JP S59175662 U JPS59175662 U JP S59175662U JP 7105383 U JP7105383 U JP 7105383U JP 7105383 U JP7105383 U JP 7105383U JP S59175662 U JPS59175662 U JP S59175662U
- Authority
- JP
- Japan
- Prior art keywords
- purge
- gas emission
- evaporative gas
- negative pressure
- restriction
- 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
Landscapes
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案による装置の一実施例を示す構成図、第
２図ａ、 ｂ、 ｃは動作特性の線図である。
１・・・気化器、２・・・吸気マニホールド、３・・・
エンジン本体、４・・・フロート室、５・・・燃料タン
ク、６゜７・・・ペイパライン、８・・・キャニスタ、
９・・・スロットル弁、１０・・・ポート、１２・・・
パージ制御弁、１６．１７・・・絞り、１８．１９・・
・パージライン、２０・・・負圧弁。FIG. 1 is a block diagram showing an embodiment of the device according to the present invention, and FIGS. 2a, b, and c are diagrams of operating characteristics. 1... Carburetor, 2... Intake manifold, 3...
Engine body, 4... Float chamber, 5... Fuel tank, 6°7... Paypal line, 8... Canister,
9... Throttle valve, 10... Port, 12...
Purge control valve, 16.17... Throttle, 18.19...
・Purge line, 20...Negative pressure valve.
Claims (1)
発した燃料蒸気をキャニスタに吸着して貯え、エンジン
運転後スロットル弁のポート負圧で上記キャニスタのパ
ージ制御弁を開いてパージするものにおいて、上記パー
ジ制御弁から吸気系に絞りを有する第１のパージライン
を連設し、該第１のパージラインの絞りに対して他の絞
りを有する第２のパージラインをバイパスして連設し、
該第２のパージラインには吸入管負圧に応じて開閉する
負圧弁を設けたことを特徴とする燃料蒸発ガス排出抑止
装置。The fuel vapor evaporated in the carburetor float chamber and fuel tank is adsorbed and stored in a canister while the engine is stopped, and after the engine is started, the purge control valve of the canister is opened using negative pressure at the port of the throttle valve to purge the purge. A first purge line having a restriction is connected from the control valve to the intake system, and a second purge line having another restriction is connected to the restriction of the first purge line in a bypass manner,
A fuel evaporative gas emission suppressing device characterized in that the second purge line is provided with a negative pressure valve that opens and closes in response to suction pipe negative pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7105383U JPS59175662U (en) | 1983-05-12 | 1983-05-12 | Fuel evaporative gas emission control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7105383U JPS59175662U (en) | 1983-05-12 | 1983-05-12 | Fuel evaporative gas emission control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59175662U true JPS59175662U (en) | 1984-11-24 |
Family
ID=30201206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7105383U Pending JPS59175662U (en) | 1983-05-12 | 1983-05-12 | Fuel evaporative gas emission control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59175662U (en) |
-
1983
- 1983-05-12 JP JP7105383U patent/JPS59175662U/en active Pending
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