JPH0469633U

JPH0469633U -

Info

Publication number: JPH0469633U
Application number: JP11258990U
Authority: JP
Priority date: 1990-10-26
Filing date: 1990-10-26
Publication date: 1992-06-19

Description

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

第１図はエンジンの縦断面図、第２図は第１図
の−線断面図、第３図は第１図の−線断
面図、第４図はシリンダヘツドの縦断面図、第５
図は点火プラグを省略した第４図の矢視図、第
６図は別実施例に係るシリンダヘツドの縦断面図
、第７図は点火プラグを省略した第６図の矢視
図、第８図は別実施例に係るエンジンの縦断面図
である。１０……吸気弁、１１……排気弁、２２，３０
，３１……連通路、２４……点火プラグ、２４ａ
……電極、Ｓ１……主燃焼室、Ｓ２……副燃焼室
。 Fig. 1 is a longitudinal sectional view of the engine, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 1, Fig. 4 is a longitudinal sectional view of the cylinder head, and Fig. 5 is a longitudinal sectional view of the cylinder head.
6 is a vertical sectional view of a cylinder head according to another embodiment; FIG. 7 is a view in the direction of FIG. 6 with the spark plug omitted; FIG. The figure is a longitudinal sectional view of an engine according to another embodiment. 10...Intake valve, 11...Exhaust valve, 22,30
, 31... Communication path, 24... Spark plug, 24a
... Electrode, S1 ... Main combustion chamber, S2 ... Sub-combustion chamber.

Claims

【実用新案登録請求の範囲】 (1) 吸気弁及び排気弁を有する主燃焼室内に点
火プラグを配置し、かつ弁機構を有さない副燃焼
室を持つ内燃機関において、前記主燃焼室と前記
副燃焼室とを連通し、その延長線上に前記点火プ
ラグの電極が臨まない通路を少なくとも１つは備
える副燃焼室付エンジン。 (2) 吸気通路を希薄混合気用の主吸気通路と濃
混合気用の副吸気通路に分割し、前記副吸気通路
の開口を前記点火プラグ近傍に配置したことを特
徴とする前記請求項(1)に記載の副燃焼室付エン
ジン。[Claims for Utility Model Registration] (1) In an internal combustion engine having a auxiliary combustion chamber in which a spark plug is disposed within a main combustion chamber having an intake valve and an exhaust valve, and having no valve mechanism, the main combustion chamber and the An engine with a sub-combustion chamber, which includes at least one passage that communicates with the sub-combustion chamber and does not face the electrode of the spark plug on an extension of the passage. (2) The intake passage is divided into a main intake passage for a lean mixture and a sub-intake passage for a rich mixture, and the opening of the sub-intake passage is disposed near the spark plug. Engine with auxiliary combustion chamber described in 1).