JPH0414747U

JPH0414747U -

Info

Publication number: JPH0414747U
Application number: JP5383190U
Authority: JP
Priority date: 1990-05-23
Filing date: 1990-05-23
Publication date: 1992-02-06
Anticipated expiration: 2005-05-23
Also published as: JP2537388Y2

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示すもので、第１図
は内燃機関の要部縦断面図であつて第２図のＩ−
Ｉ線断面図、第２図は第１図の−線断面図、
第３図は第２図の−線断面図、第４図は第１
図の−線矢視図、第５図は第１図のＶ−Ｖ線
拡大断面図である。２……シリンダヘツド、６_１，６_２……吸気弁
口、７_１，７_２……排気弁口、９……排気開口端
、９_１，９_２……排気ポート、５……燃焼室、１
６……カムシヤフト、６４……点火プラグ、ＭＥ
，……排気側動弁手段、ＭＩ……吸気側動弁手段
、ＶＥ_１，ＶＥ_２、……排気弁、ＶＩ_１，ＶＩ_２、……吸気弁。 The drawings show one embodiment of the present invention, and FIG. 1 is a vertical cross-sectional view of the main part of an internal combustion engine, taken along I--I in FIG.
I line sectional view, Figure 2 is a - line sectional view of Figure 1,
Figure 3 is a - line sectional view of Figure 2, Figure 4 is a cross-sectional view of Figure 1.
FIG. 5 is an enlarged sectional view taken along the line V-V in FIG. 1. 2...Cylinder head, ₆₁ , ₆₂ ...Intake valve port, _71,72 ...Exhaust valve port, ₉ ...Exhaust opening end, _91,92 _... Exhaust port, 5...Combustion chamber ,1
6...Camshaft, 64...Spark plug, ME
, ...exhaust side valve operating means, MI...intake side valve operating means, VE ₁ , VE ₂ , ...exhaust valve, VI ₁ , VI ₂ ,...Intake valve.

Claims

[Scope of utility model registration request]

A pair of intake valve ports 6 ₁ that open facing the combustion chamber 5 , 6 ₂ and a pair of exhaust valve ports 7 ₁ , 7 ₂ which can be opened and closed, respectively, and a pair of intake valves VI ₁ , VI ₂ and a pair of exhaust valves VE ₁ , VE ₂ , and a single camshaft 16 . An intake side valve operating means MI and an exhaust side valve operating means ME are respectively provided, and the combustion chamber 5
In an SOHC type internal combustion engine, a spark plug 64 facing approximately the center of the ceiling surface is disposed in the cylinder head 2 between the exhaust valves VE ₁ and VE ₂ , and the spark plug 64 is located between the exhaust valve ports 7 ₁ and 7 ₂ and the cylinder head. The SOHC type is characterized in that a pair of exhaust ports 9 ₁ and 9 ₂ provided in the cylinder head 2 by connecting an exhaust opening end 9 opened on the side surface of the cylinder head 2 are curved and bulged toward each other. Internal combustion engine.