JPS63191228U - - Google Patents
Info
- Publication number
- JPS63191228U JPS63191228U JP8103987U JP8103987U JPS63191228U JP S63191228 U JPS63191228 U JP S63191228U JP 8103987 U JP8103987 U JP 8103987U JP 8103987 U JP8103987 U JP 8103987U JP S63191228 U JPS63191228 U JP S63191228U
- Authority
- JP
- Japan
- Prior art keywords
- secondary air
- supplied
- main system
- engine
- operating region
- 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 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 238000007796 conventional method Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Description
第１図は本実施例の全体構成図、第２図は本実
施例に適用される気化器の構成図、第３図は開閉
弁の作動領域設定図、第４図は開閉弁が閉じられ
る運転状態を、燃料供給状態によつて示す図、第
５図はスロツトル開度とスロージツト前後の差圧
との関係を示す図、第６図は実施例の制御の一例
を示すフローチヤート、第７図は従来例の気化器
の構成図、第８図は従来の問題点を示す図である
。
２７：排気ポート、３３：スロツトルバルブ、
３４：気化器、３５：二次空気用ノズル、４１：
開閉弁、４２：コントロールユニツト、５１：メ
インジエツト、５３：メイン系、５６：スロー系
、５４：第１のスローエアブリード、６１：スロ
ージエツト、７０：開度センサ、７１：デストリ
ビユータ。
Fig. 1 is an overall configuration diagram of this embodiment, Fig. 2 is a configuration diagram of a carburetor applied to this embodiment, Fig. 3 is a diagram of setting the operating range of the on-off valve, and Fig. 4 is a diagram when the on-off valve is closed. FIG. 5 is a diagram showing the relationship between the throttle opening and the differential pressure before and after the throttle, FIG. 6 is a flowchart showing an example of control in the embodiment, and FIG. The figure is a block diagram of a conventional carburetor, and FIG. 8 is a diagram showing the problems of the conventional method. 27: Exhaust port, 33: Throttle valve,
34: Vaporizer, 35: Secondary air nozzle, 41:
On-off valve, 42: control unit, 51: main jet, 53: main system, 56: slow system, 54: first slow air bleed, 61: slow jet, 70: opening sensor, 71: distributor.
Claims (1)
から分岐して形成されてなるエンジンにおいて、 燃焼室に開口する排気ポートの開口端近傍に二
次空気を供給する二次空気供給手段と、 前記メイン系から燃料が供給される運転領域で
の減速状態を検出する運転状態検出手段と、 該運転状態検出手段からの信号を受け、前記メ
イン系から燃料が供給される運転領域での減速状
態にあるときには、前記二次空気の量を減量する
二次空気制御手段と、 を備えていることを特徴とするエンジンの二次空
気制御装置。[Scope of Utility Model Registration Claim] In an engine equipped with a carburetor, in which the slow system of the carburetor is formed by branching off from the main system, secondary air is supplied near the opening end of an exhaust port that opens into a combustion chamber. a secondary air supply means for detecting a deceleration state in an operating region where fuel is supplied from the main system; and an operating state detecting means for detecting a deceleration state in an operating region where fuel is supplied from the main system; 1. A secondary air control device for an engine, comprising: secondary air control means for reducing the amount of secondary air when the engine is in a deceleration state in an operating region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8103987U JPS63191228U (en) | 1987-05-29 | 1987-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8103987U JPS63191228U (en) | 1987-05-29 | 1987-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63191228U true JPS63191228U (en) | 1988-12-09 |
Family
ID=30932406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8103987U Pending JPS63191228U (en) | 1987-05-29 | 1987-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63191228U (en) |
-
1987
- 1987-05-29 JP JP8103987U patent/JPS63191228U/ja active Pending