JPS6314833U

JPS6314833U -

Info

Publication number: JPS6314833U
Application number: JP10669986U
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、２０……共通吸気通路、２１……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, 20... Common intake passage, 21... 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; It is equipped with a second intake port that supplies straight intake air into the room, and a third intake port that is provided with a fuel injection valve.
and a third intake port respectively to the first, second and third intake ports.
In a dual intake valve engine in which the third intake valve is connected to the combustion chamber through the intake valves thereof, and the opening timing of the third intake valve is delayed from the opening timing of the first intake valve, the intake valve is connected to the combustion chamber through the intake valve of the first intake port. A fourth partition wall that is defined by a partition wall that hangs down halfway in the height direction of the intake port from the wall, and whose lower portion communicates with the first intake port and supplies straight intake air into the combustion chamber.
A dual intake valve engine, characterized in that the fourth intake port is provided with an intake control valve that opens only in a high load, high rotation range of the engine. 2. The second intake port is arranged adjacent to the fourth intake port, and the second intake port and the fourth intake port are simultaneously controlled to open and close by one common intake control valve. A dual intake valve engine according to claim 1 of the claimed utility model registration.