JPH0195571U

JPH0195571U -

Info

Publication number: JPH0195571U
Application number: JP19096687U
Authority: JP
Priority date: 1987-12-16
Filing date: 1987-12-16
Publication date: 1989-06-23

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示すスロツトル全
閉状態の縦断側面図、第２図はスワールコントロ
ールバルブの正面図、第３図はスロツトル全開状
態の縦断側面図である。１…シリンダヘツド、２…燃焼室、３，３ａ…
吸気ポート、４，４ａ…吸気バルブ、５…吸気通
路、６，６ａ…分岐通路、７…インジエクタ、７
ａ…噴射口、８…スロツトルバルブ、９…スワー
ルコントロールバルブ、９ａ…スワール開口、１
０，１１…アクチユエータ、１０ａ，１１ａ…操
作桿、１０ｂ，１１ｂ…チヤンバ、１０ｃ，１１
ｃ…ダイヤフラム、１０ｄ，１１ｄ…スプリング
、１０ｅ…ストツパ壁、１０ｆ，１１ｆ…負圧室
、１２…負圧通路。 FIG. 1 is a longitudinal sectional side view showing an embodiment of the present invention with the throttle fully closed, FIG. 2 is a front view of the swirl control valve, and FIG. 3 is a longitudinal sectional side view with the throttle fully open. 1... Cylinder head, 2... Combustion chamber, 3, 3a...
Intake port, 4, 4a... Intake valve, 5... Intake passage, 6, 6a... Branch passage, 7... Injector, 7
a... Injection port, 8... Throttle valve, 9... Swirl control valve, 9a... Swirl opening, 1
0, 11...actuator, 10a, 11a...operation stick, 10b, 11b...chamber, 10c, 11
c...Diaphragm, 10d, 11d...Spring, 10e...Stopper wall, 10f, 11f...Negative pressure chamber, 12...Negative pressure passage.

Claims

[Claims for Utility Model Registration] An injector is provided in an intake passage branching and communicating with a cylinder having a plurality of intake valves, and a swirl control valve is provided between the injector and the throttle valve, wherein the injector is provided with a swirl control valve between the injector and the throttle valve. The intake passage is disposed at a central portion corresponding to the branch, immediately upstream of the branch, and is configured to direct the injection port toward the branch or one of the branch passages by a first actuator. Further, the swirl control valve has a swirl opening on the branch passage side toward which the injection port of the injector is directed, and is configured to be opened and closed by a second actuator, and both actuators are connected to a throttle valve. It is configured to be operated by the negative pressure downstream of the valve, and when the negative pressure is deep, the swirl control valve is closed and the injector injection port is directed to one of the branch passages, and when the negative pressure is shallow, the swirl control valve is closed. A fuel injection control device characterized in that a control valve is directed to the open side and an injection port of an injector is directed to a branching part of an intake passage.