JPS62132219U - - Google Patents
Info
- Publication number
- JPS62132219U JPS62132219U JP2001386U JP2001386U JPS62132219U JP S62132219 U JPS62132219 U JP S62132219U JP 2001386 U JP2001386 U JP 2001386U JP 2001386 U JP2001386 U JP 2001386U JP S62132219 U JPS62132219 U JP S62132219U
- Authority
- JP
- Japan
- Prior art keywords
- air bleed
- fuel supply
- air
- valve
- fuel
- 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 8
- 241000234435 Lilium Species 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の一実施例を縦断面図で示す全
体構成図、第２図Ａ，Ｂおよび第３図Ａ，Ｂはそ
の吸気弁に関連して設けられた開閉弁の構成を示
す縦断面図、第４図は吸気弁の開弁期間と開閉弁
の開いている期間との関係を示すグラフ、第５図
はコントロールユニツトが実行するフローチヤー
ト、第６図は第２エアブリードの開度のデユーテ
イ制御態様を示すグラフである。
１…気化器、２…ベンチユリ、３…スロツトル
弁、６…燃料溜め、７…主燃料通路、８…吸気通
路、９…主ノズル、１０…主空気ジエツト、１５
…補助燃料通路、１７…第１エアブリード、１８
，２３…エアブリードコントロールバルブ、１９
…シリンダヘツド、２０…吸気弁、２０ａ…吸気
弁ステム、２０ｂ…吸気弁傘部、２１…第２エア
ブリード、２４…コントロールユニツト、３０…
吸気ポート、３１…弁ステムガイド、３２…室、
３４，３６…溝、３５…燃焼室。
Fig. 1 is an overall configuration diagram showing an embodiment of the present invention in a vertical sectional view, and Figs. 2 A and B and Figs. 3 A and B show the structure of an on-off valve provided in connection with the intake valve. 4 is a graph showing the relationship between the opening period of the intake valve and the opening period of the on-off valve, FIG. 5 is a flowchart executed by the control unit, and FIG. 6 is a graph of the second air bleed. It is a graph which shows the duty control aspect of opening degree. DESCRIPTION OF SYMBOLS 1... Carburetor, 2... Bench lily, 3... Throttle valve, 6... Fuel reservoir, 7... Main fuel passage, 8... Intake passage, 9... Main nozzle, 10... Main air jet, 15
...Auxiliary fuel passage, 17...First air bleed, 18
, 23...Air bleed control valve, 19
...Cylinder head, 20...Intake valve, 20a...Intake valve stem, 20b...Intake valve umbrella, 21...Second air bleed, 24...Control unit, 30...
Intake port, 31...valve stem guide, 32...chamber,
34, 36...Groove, 35...Combustion chamber.
Claims (1)
弁の開作動により吸気弁ステムと弁ステムガイド
との間で開作動する開閉弁に連通する燃料供給通
路と、 この燃料供給通路に空気をそれぞれ供給する第
１エアブリードおよびこの第１エアブリードより
も開口面積の小さい第２エアブリードと、 減速時には前記第１エアブリードを開き、通常
運転時には前記第１エアブリードを閉じかつ前記
第２エアブリードの開度を吸気負圧に応じて制御
することにより前記燃料供給通路による燃料供給
量を制御する制御手段とを備えていることを特徴
とするエンジンの燃料供給装置。[Scope of Claim for Utility Model Registration] A fuel supply passageway with one end communicating with the fuel reservoir of the carburetor and the other end communicating with an on-off valve that opens between the intake valve stem and the valve stem guide when the intake valve opens. a first air bleed that supplies air to the fuel supply passage, and a second air bleed that has a smaller opening area than the first air bleed; the first air bleed is opened during deceleration, and the first air bleed is opened during normal operation; and control means for controlling the amount of fuel supplied by the fuel supply passage by closing an air bleed and controlling the opening degree of the second air bleed according to the intake negative pressure. Feeding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001386U JPH0528330Y2 (en) | 1986-02-17 | 1986-02-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001386U JPH0528330Y2 (en) | 1986-02-17 | 1986-02-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62132219U true JPS62132219U (en) | 1987-08-20 |
| JPH0528330Y2 JPH0528330Y2 (en) | 1993-07-21 |
Family
ID=30815128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001386U Expired - Lifetime JPH0528330Y2 (en) | 1986-02-17 | 1986-02-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0528330Y2 (en) |
-
1986
- 1986-02-17 JP JP2001386U patent/JPH0528330Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0528330Y2 (en) | 1993-07-21 |