JPS6028237U - Intake system for spark-ignition internal combustion engines - Google Patents

Intake system for spark-ignition internal combustion engines

Info

Publication number
JPS6028237U
JPS6028237U JP11874083U JP11874083U JPS6028237U JP S6028237 U JPS6028237 U JP S6028237U JP 11874083 U JP11874083 U JP 11874083U JP 11874083 U JP11874083 U JP 11874083U JP S6028237 U JPS6028237 U JP S6028237U
Authority
JP
Japan
Prior art keywords
spark
internal combustion
intake
ignition internal
throttle valve
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
JP11874083U
Other languages
Japanese (ja)
Inventor
村中 重夫
永井 規
豊 又吉
Original Assignee
日産自動車株式会社
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 by 日産自動車株式会社 filed Critical 日産自動車株式会社
Priority to JP11874083U priority Critical patent/JPS6028237U/en
Publication of JPS6028237U publication Critical patent/JPS6028237U/en
Pending legal-status Critical Current

Links

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

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

゛ 第1図は従来の吸気装置を示す縦断面図、第2図は
シリンダヘッドから外した状態で下から見た底面図、第
3図は本考案の吸気装置を示す縦断面    −図、第
4図aはその底面図で、第4図すは、A−A部の断面図
1、第5図、第6図はそれぞれ他の実 、流側で、吸気
管を第2絞り弁の通し軸の中心線で断面した断面図であ
る。 1・・・気化器、2・・・絞り弁、4・・・第2絞り弁
、5・・・吸気通路、6・・・アクチュエータ、7・・
・主吸気通路、8・・・副吸気通路、9・・・シリンダ
ヘッド、1゜・・・吸気弁、17・・・副吸気口、18
・・・吸気口、19・・・燃焼室。
゛ Fig. 1 is a vertical cross-sectional view showing a conventional intake device, Fig. 2 is a bottom view seen from below when removed from the cylinder head, and Fig. 3 is a longitudinal cross-sectional view showing the intake device of the present invention. Figure 4a is a bottom view of the same, and Figure 4A is a cross-sectional view of the A-A section. FIG. 3 is a cross-sectional view taken along the center line of the shaft. DESCRIPTION OF SYMBOLS 1... Carburetor, 2... Throttle valve, 4... Second throttle valve, 5... Intake passage, 6... Actuator, 7...
・Main intake passage, 8... Sub-intake passage, 9... Cylinder head, 1°... Intake valve, 17... Sub-intake port, 18
...Intake port, 19...Combustion chamber.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 気化器の絞り弁の下流で主吸気通路より分岐し吸気口近
傍に燃焼室方向を指向して開口した副吸気口に通ずる副
吸気通路を有し、かつ該分岐点と吸気口の間の主吸気通
路に機関の負荷に応動する第2絞り弁を有する火花点火
式内燃機関において、第2絞り弁を最大に絞った場合で
も第2絞り弁と主吸気通路内壁との間に全周にわたり間
隙を形成したことを特徴とする火花点火式内燃機関の吸
気装置。
It has a sub-intake passage that branches from the main intake passage downstream of the throttle valve of the carburetor and leads to a sub-intake port that opens toward the combustion chamber near the intake port, and has a main intake passage between the branch point and the intake port. In a spark-ignition internal combustion engine that has a second throttle valve in the intake passage that responds to engine load, even when the second throttle valve is throttled to the maximum, there is a gap between the second throttle valve and the inner wall of the main intake passage over the entire circumference. An intake device for a spark-ignition internal combustion engine, characterized in that the intake device comprises:
JP11874083U 1983-07-30 1983-07-30 Intake system for spark-ignition internal combustion engines Pending JPS6028237U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11874083U JPS6028237U (en) 1983-07-30 1983-07-30 Intake system for spark-ignition internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11874083U JPS6028237U (en) 1983-07-30 1983-07-30 Intake system for spark-ignition internal combustion engines

Publications (1)

Publication Number Publication Date
JPS6028237U true JPS6028237U (en) 1985-02-26

Family

ID=30272798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11874083U Pending JPS6028237U (en) 1983-07-30 1983-07-30 Intake system for spark-ignition internal combustion engines

Country Status (1)

Country Link
JP (1) JPS6028237U (en)

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