JPS6158655U - - Google Patents

Info

Publication number
JPS6158655U
JPS6158655U JP13879584U JP13879584U JPS6158655U JP S6158655 U JPS6158655 U JP S6158655U JP 13879584 U JP13879584 U JP 13879584U JP 13879584 U JP13879584 U JP 13879584U JP S6158655 U JPS6158655 U JP S6158655U
Authority
JP
Japan
Prior art keywords
air supply
intake
secondary air
supply passage
passage
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
Application number
JP13879584U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP13879584U priority Critical patent/JPS6158655U/ja
Publication of JPS6158655U publication Critical patent/JPS6158655U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本考案の実施例を示す構成図、第2図
は第1図の装置中の制御回路の具外的構成を示す
ブロツク図である。 主要部分の符号の説明、2……エアクリーナ、
3……気化器、5……絞り弁、6……ベンチユリ
、7……チヨーク弁、10……吸気マニホールド
、11ないし13……吸気2次空気供給通路、1
6……空気制御弁、17……圧力供給通路、18
,20……電磁開閉弁、19,21,25,27
……絞り、23……サージタンク、24……逆止
弁、26……大気圧供給通路、28……負圧応動
型開閉弁、29……負圧供給通路、37……排気
マニホールド、38……酸素濃度センサ、39…
…回転数スイツチ、46……三元触媒コンバータ
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing the external structure of a control circuit in the apparatus shown in FIG. Explanation of symbols of main parts, 2...Air cleaner,
3... Carburetor, 5... Throttle valve, 6... Bench lily, 7... Chiyoke valve, 10... Intake manifold, 11 to 13... Intake secondary air supply passage, 1
6... Air control valve, 17... Pressure supply passage, 18
, 20...Solenoid on-off valve, 19, 21, 25, 27
... Throttle, 23 ... Surge tank, 24 ... Check valve, 26 ... Atmospheric pressure supply passage, 28 ... Negative pressure responsive on-off valve, 29 ... Negative pressure supply passage, 37 ... Exhaust manifold, 38 ...Oxygen concentration sensor, 39...
...Rotational speed switch, 46...Three-way catalytic converter.

Claims (1)

【実用新案登録請求の範囲】 (1) 内燃エンジンの排気成分濃度から空燃比を
判定し該判定結果を表わす空熱比信号を発生する
判定手段と、気化器絞り弁下流の吸気通路に連通
する第1吸気2次空気供給通路と、前記空燃比信
号の内容に応じて前記第1吸気2次空気供給通路
を開閉しエンジンの所定運転状態時に前記空燃比
信号の内容に無関係に前記第1吸気2次空気供給
通路を閉塞する第1開閉手段と、前記吸気通路に
連通し前記第1吸気2次空気供給通路の流路断面
積より小なる流路断面積を有する第2吸気2次空
気供給通路と、前記所定運転状態時に前記空燃比
信号の内容に応じて前記第2吸気2次空気供給通
路を開閉し前記所定運転状態以外の時に前記空燃
比信号の内容に無関係に前記第2吸気2次空気供
給通路を閉塞する第2開閉手段とを含むことを特
徴とする吸気2次空気供給装置。 (2) 前記第1吸気供給通路にはその流路断面積
を定める第1絞りが設けられ、前記第2吸気2次
空気供給通路にはその流路断面積を定める第2絞
りが設けられていることを特徴とする実用新案登
録請求の範囲第1項記載の吸気2次空気供給装置
。 (3) 前記所定運転状態はエンジン低負荷状態で
あり、エンジン回転数から検出することを特徴と
する実用新案登録請求の範囲第1項記載の吸気2
次空気供給装置。
[Claims for Utility Model Registration] (1) Judgment means for determining the air-fuel ratio from the concentration of exhaust components of the internal combustion engine and generating an air-heat ratio signal representing the determination result, communicating with the intake passage downstream of the carburetor throttle valve. A first intake secondary air supply passage, and a first intake secondary air supply passage that opens and closes according to the contents of the air-fuel ratio signal, and the first intake secondary air supply passage opens and closes according to the contents of the air-fuel ratio signal, and the first intake secondary air supply passage opens and closes according to the contents of the air-fuel ratio signal. a first opening/closing means for closing the secondary air supply passage; and a second intake secondary air supply communicating with the intake passage and having a passage cross-sectional area smaller than the passage cross-sectional area of the first intake secondary air supply passage. and the second intake secondary air supply passage opens and closes according to the contents of the air-fuel ratio signal during the predetermined operating state, and the second intake secondary air supply passage opens and closes according to the content of the air-fuel ratio signal when the operating state is other than the predetermined operating state. and a second opening/closing means for closing a secondary air supply passage. (2) The first intake air supply passage is provided with a first restriction that determines a cross-sectional area of the passage, and the second intake secondary air supply passage is provided with a second restriction that determines the cross-sectional area of the passage. The intake secondary air supply device according to claim 1 of the utility model registration claim. (3) The intake air 2 according to claim 1 of the utility model registration claim, wherein the predetermined operating state is a low engine load state, which is detected from the engine rotation speed.
Next air supply device.
JP13879584U 1984-09-12 1984-09-12 Pending JPS6158655U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13879584U JPS6158655U (en) 1984-09-12 1984-09-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13879584U JPS6158655U (en) 1984-09-12 1984-09-12

Publications (1)

Publication Number Publication Date
JPS6158655U true JPS6158655U (en) 1986-04-19

Family

ID=30697189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13879584U Pending JPS6158655U (en) 1984-09-12 1984-09-12

Country Status (1)

Country Link
JP (1) JPS6158655U (en)

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