JPS6139434U

JPS6139434U - engine structure

Info

Publication number: JPS6139434U
Application number: JP12414384U
Authority: JP
Inventors: 泰三嶋田
Original assignee: 三菱自動車工業株式会社
Priority date: 1984-08-14
Filing date: 1984-08-14
Publication date: 1986-03-12

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 drawings]

図面はこの考案の一実施例を示すもので、第１図はエン
ジン要部の斜視図、第２図Ａは吸気装置の横断平面図、
同図Ｂは同図ＡのＢ−Ｂ線に沿う縦断面図、同区Ｃは中
子の斜視図、第３図はバタフライ弁の取付状態を示す斜
視図、第４図は制御部を示す概略構成区、第５図は最適
スワールマップを示す特性図、第６図はピストン上部を
示す斜視図、第７図は同縦断面図、第８図はバタフライ
弁とスワール比との関係を示す特性図、第９図Ａは高ス
ワール状態でのスワール成分を説明する図、同［１ｆｆ
ｌＢは同状態におけるスワール方向モーメントを説明す
る図、第１０図Ａは低スワール状態でのスワール成分を
説明する図、同図Ｂは同状態におけるスワール方向モー
メントを説明する図、第１１図Ａは低スワール状態を説
明する斜視図、〆．同図Ｂは同じくスワール状
態を説明する斜視図、同図Ｃはその噴霧状態を説明する
図、第１２図は吸気状態を説明する斜視図、第１３図は
吸気ポートの展開図、第１４図は吸気ポートの斜視図、
第１５図は開口部位置を選択するための平面図、第１６
図は各開口部でのスワール比と流量係数との特性図、第
１７図Ａは第１６図のデータを説明する吸気装置の平面
図、同図Ｂはその断面図、第１８図Ａは同じく第１６図
のデータを説明する吸気装置の平面図、同図Ｂはその断
面図、第１９図は同じくエンジン要部の斜視図である。８・・・スワール制御通路（スワール制御機構）、９・
・・バタフライ弁（スワール制御機構）、１ｏ・・・制
御部（スワール制御機構）、２１・・・ピストン本体、
２２・・・断熱形燃焼室。The drawings show one embodiment of this invention; FIG. 1 is a perspective view of the main parts of the engine, FIG. 2A is a cross-sectional plan view of the intake system,
Figure B is a vertical sectional view taken along the line B-B in Figure A, Section C is a perspective view of the core, Figure 3 is a perspective view showing the butterfly valve installed, and Figure 4 shows the control unit. Schematic configuration area, Figure 5 is a characteristic diagram showing the optimum swirl map, Figure 6 is a perspective view showing the upper part of the piston, Figure 7 is a longitudinal sectional view of the same, Figure 8 shows the relationship between the butterfly valve and the swirl ratio. The characteristic diagram, Figure 9A, is a diagram explaining the swirl component in a high swirl state.
1B is a diagram explaining the swirl direction moment in the same state, FIG. 10A is a diagram explaining the swirl component in a low swirl state, FIG. 1B is a diagram explaining the swirl direction moment in the same state, and FIG. A perspective view explaining the low swirl state, 〆. Figure B is a perspective view explaining the swirl state, Figure C is a diagram explaining the spray state, Figure 12 is a perspective view explaining the intake state, Figure 13 is a developed view of the intake port, and Figure 14. is a perspective view of the intake port,
Figure 15 is a plan view for selecting the opening position;
The figure is a characteristic diagram of the swirl ratio and flow coefficient at each opening, Figure 17A is a plan view of the intake system explaining the data in Figure 16, Figure B is its cross-sectional view, and Figure 18A is the same. FIG. 16 is a plan view of the intake system for explaining the data shown in FIG. 16, FIG. 16 is a sectional view thereof, and FIG. 19 is a perspective view of the main parts of the engine. 8...Swirl control passage (swirl control mechanism), 9.
...Butterfly valve (swirl control mechanism), 1o...control section (swirl control mechanism), 21...piston body,
22...Insulated combustion chamber.

Claims

[Scope of utility model registration request]

The piston head is provided with an adiabatic combustion chamber that is insulated from the piston body, and a swirl control mechanism is installed to vary the strength of the swirl formed in the combustion air supplied to the adiabatic combustion chamber. An engine structure characterized by the following features: