JPS6314829U

JPS6314829U -

Info

Publication number: JPS6314829U
Application number: JP10669486U
Authority: JP
Priority date: 1986-07-14
Filing date: 1986-07-14
Publication date: 1988-01-30

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例の平面図、第２図
は第１図のＸ―Ｘ線断面図、第３図は各吸気弁の
動作時期及びリフトと、燃料噴射弁の噴射時期を
示す線図、第４図は本考案の第２実施例の平面図
、第５図は第４図のＹ―Ｙ線断面図である。１……第１吸気ポート、２……第１吸気弁、３
……燃焼室、４……第２吸気ポート、５……第２
吸気弁、６……第１吸気制御弁、７……第３吸気
ポート、８……第３吸気弁、９……燃料噴射弁、
１１……点火栓、１５……隔壁、１６……第４吸
気ポート、１７……連通路、１８……第２吸気制
御弁、１９，２１……共通吸気通路、２０……隔
壁、２２……吸気制御弁。 Fig. 1 is a plan view of the first embodiment of the present invention, Fig. 2 is a sectional view taken along the line X--X of Fig. 1, and Fig. 3 shows the operating timing and lift of each intake valve and the injection timing of the fuel injection valve. FIG. 4 is a plan view of the second embodiment of the present invention, and FIG. 5 is a sectional view taken along the line Y--Y in FIG. 4. 1...First intake port, 2...First intake valve, 3
...Combustion chamber, 4...Second intake port, 5...Second
Intake valve, 6...First intake control valve, 7...Third intake port, 8...Third intake valve, 9...Fuel injection valve,
DESCRIPTION OF SYMBOLS 11... Spark plug, 15... Partition wall, 16... Fourth intake port, 17... Communication passage, 18... Second intake control valve, 19, 21... Common intake passage, 20... Partition wall, 22... ...Intake control valve.

Claims

[Claims for Utility Model Registration] 1. A first intake port that is always open to generate a swirl in the intake air supplied into the combustion chamber, and an intake control valve that is opened only in the high-load, high-speed operating range of the engine; A second intake port that supplies straight intake air into the room, and a third intake port provided with a fuel injection valve, and the third intake port is located between the first and second intake ports. the first, second, and third intake ports are connected to the combustion chamber via the first, second, and third intake valves, and the opening timing of the third intake valve is set as described above. In a dual intake valve engine in which the opening timing of the first intake valve is delayed, the first intake port is partitioned by a partition wall that hangs down from the upper wall of the first intake port halfway in the height direction of the intake port, and the lower part thereof is A fourth intake port that communicates with the first intake port and supplies straight intake air to the combustion chamber is provided adjacent to the third intake port, and the third and fourth intake ports are connected to the engine. An intake control valve that opens only in a high-load, high-speed range is provided, and the fuel injection valve is located downstream of the intake control valve, so that fuel is supplied from the fuel injection valve to both the third and fourth intake ports. A dual intake valve engine characterized by the fact that 2. The dual intake valve engine according to claim 1, wherein the second intake port and the third and fourth intake ports are opened and closed by one common intake control valve. 3. The fuel injection valve is configured such that the fuel injection direction is the third direction.
A dual intake valve engine according to claim 1 or 2, which is a two-way fuel injection valve that is divided into two directions: an intake port and a fourth intake port.