JPS5894820U

JPS5894820U - Spark ignition stratified charge internal combustion engine

Info

Publication number: JPS5894820U
Application number: JP19023281U
Authority: JP
Inventors: 秋山　友二郎
Original assignee: Toyota Motor Corp
Current assignee: Toyota Motor Corp
Priority date: 1981-12-22
Filing date: 1981-12-22
Publication date: 1983-06-27

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

[Brief explanation of the drawing]

第１図は本考案の第１実施例の模式的部分的断面図、第
２図はシリンダヘッド下面図でへりカルポートの形状を
図解したもので、第３図はバルブタイミング図、第４図
は混合気の流入状態を示す説明図、第５図は失火限界を
示すグラフ、第６図は本考案の第２実施例の模式的部分
的断面図、第７図はその吸気弁のバルブタイミング図、
第８図および第９図は第２実施例における混合気の流入
状態を示す説明図である。１．１０１・・・シリンダブロック、２，１０２・・・
　　　　　゛ピストン、３，１０３・・・シリンダヘッ
ド、４゜１０４・・・燃焼室、５，１０５・・・主吸気
弁、６゜１０６・・・排気弁、−７，１０７・・・点火
プラグ、８゜１０８・・・カムシャフト、９，１０９・
・・主吸気弁のロッカーアーム、１０，１１０・・・排
気弁のロッカーアーム、ｌｉ、１１１・・・主吸気ポー
ト、１２゜１１２・・・副吸気ポート、１３，１１３・
・・副吸気弁のロッカーアーム、１４，１１４・・・副
吸気弁、１５．１１５・・・主導入路、１６，１１６・
・・副溝入路、１７，１１７・・・吸気マニホールド、
１８゜１１９・・・過濃混合気供給部、１９，１１８・
・・空気供給部、２０，１２０・・・気化器、２１．２
２・・・スロットル弁。ＢＤＣ第４図第６図Fig. 1 is a schematic partial sectional view of the first embodiment of the present invention, Fig. 2 is a bottom view of the cylinder head illustrating the shape of the lip calport, Fig. 3 is a valve timing diagram, and Fig. 4 is a diagram showing the shape of the lip calport. An explanatory diagram showing the inflow state of the air-fuel mixture, FIG. 5 is a graph showing the misfire limit, FIG. 6 is a schematic partial cross-sectional view of the second embodiment of the present invention, and FIG. 7 is a valve timing diagram of the intake valve. ,
FIG. 8 and FIG. 9 are explanatory diagrams showing the inflow state of the air-fuel mixture in the second embodiment. 1.101... cylinder block, 2,102...
゛Piston, 3,103...Cylinder head, 4゜104...Combustion chamber, 5,105...Main intake valve, 6゜106...Exhaust valve, -7,107...Spark plug, 8゜108...camshaft, 9,109・
...Rocker arm of the main intake valve, 10,110...Rocker arm of the exhaust valve, li, 111...Main intake port, 12°112...Sub-intake port, 13,113...
...Sub-intake valve rocker arm, 14,114...Sub-intake valve, 15.115...Main introduction path, 16,116-
... Sub-groove entry, 17,117... Intake manifold,
18゜119... Rich mixture supply section, 19,118・
...Air supply section, 20,120...Carburizer, 21.2
2...Throttle valve. BDC Figure 4 Figure 6

Claims

[Scope of utility model registration request]

A main intake passage is provided with a main intake valve and is formed in a shape that generates a swirl, and the main intake passage opens later than the main intake valve and closes approximately in synchronization with the main intake valve, or opens approximately in synchronization with the main intake valve. a sub-intake valve that opens in the middle of the main intake passage, and a spark plug disposed in the upper part of the combustion chamber; A rich mixture is supplied to the combustion chamber from the intake passage whose intake valve opens later or opens later than the other intake valve, and a lean mixture or air is supplied from the other intake passage. A spark ignition stratified charge internal combustion engine characterized by being configured to.