JPS6238429U

JPS6238429U -

Info

Publication number: JPS6238429U
Application number: JP12882685U
Authority: JP
Priority date: 1985-08-26
Filing date: 1985-08-26
Publication date: 1987-03-07

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の概略構成図、第２
図はエンジンを平面に沿い断面とした実施例の概
略構成図、第３図はエンジンの一部の側断面図、
第４図ａは第２図のＢ部分を拡大して示す拡大図
、第４図ｂは第４図ａのＣ線矢視図、第５図ａは
通常の吸気装置の横断平面図、同図ｂはそのＡ―
Ａ線に沿う断面図、第６図ａ，ｂは従来の可変ス
ワールポートの平面概略図、第７図ａはその概略
斜視図、同図ｂは噴霧状態の説明図、同図ｃは吸
気状態の説明図である。図面中、１はエンジン、６は燃焼室、８は吸気
弁、９は主ポート、１０は副ポート、１１は吸気
マニホルド、１２は主空気通路、１３は副空気通
路、１４は弁体、１４ａは弁、１５はエアシリン
ダ、１５ａはピストンロツド、１６はレバー、１
９は圧力調整器、２０はコントロールユニツトで
ある。 Figure 1 is a schematic configuration diagram of one embodiment of the present invention;
The figure is a schematic configuration diagram of an embodiment in which the engine is sectioned along a plane, and FIG. 3 is a side sectional view of a part of the engine.
Fig. 4a is an enlarged view showing part B in Fig. 2, Fig. 4b is a view taken along the line C in Fig. 4a, and Fig. 5a is a cross-sectional plan view of a normal intake device. Figure b is that A-
A sectional view taken along line A, FIGS. 6a and 6b are plan schematic diagrams of a conventional variable swirl port, FIG. 7a is a schematic perspective view thereof, FIG. 7b is an explanatory diagram of a spray state, and FIG. FIG. In the drawing, 1 is an engine, 6 is a combustion chamber, 8 is an intake valve, 9 is a main port, 10 is a sub port, 11 is an intake manifold, 12 is a main air passage, 13 is a sub air passage, 14 is a valve body, 14a is a valve, 15 is an air cylinder, 15a is a piston rod, 16 is a lever, 1
9 is a pressure regulator, and 20 is a control unit.

Claims

[Scope of utility model registration request]

It has a variable swirl intake system consisting of a main port that is connected to the upstream side of the intake valve of the combustion chamber and makes the air flowing into the combustion chamber into a swirl flow, and a sub port that is connected at an angle near the terminal end of the main port. In the variable swirl mechanism, the variable swirl mechanism is arranged in a sub-air passage communicating with the sub-port in the variable swirl intake system and rotates about an axis perpendicular to the axial direction of the sub-air passage to change the amount of air flowing through the sub-port. a valve mechanism that changes the swirl ratio of the swirl flow in the combustion chamber, an air cylinder that changes the amount of protrusion of the piston rod depending on the pressure of compressed air supplied via a pressure regulator, and converts linear movement of the piston rod into rotational movement. The valve mechanism is equipped with a power transmission means that converts the power and rotates the valve mechanism, and a swirl ratio that is selected based on the engine load, rotation speed, etc., and a pressure regulator that is controlled to adjust the protrusion amount of the piston rod of the air cylinder. A variable swirl mechanism comprising: a control system for operating a variable swirl mechanism;