JPS58163636U

JPS58163636U - Internal combustion engine with supercharger

Info

Publication number: JPS58163636U
Application number: JP6104282U
Authority: JP
Inventors: 隆山本
Original assignee: 日産ディーゼル工業株式会社
Priority date: 1982-04-28
Filing date: 1982-04-28
Publication date: 1983-10-31

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]

第１図は本考案の１実施例を示す簡略構成図、第２図及
び第３図は同上実施例における各吸気通路のポ一部の断
面図を示し、第２図は第１吸気通路のポート部、第３図
は第２吸気通路のポート部をそれぞれ示しである。゛　１・・・気筒、２・・・第１吸気弁、３・・・第２
吸気弁、７・・・過給機、７Ａ・・・排気タービン、７
Ｂ・・・吸気コンプレッサ、８・・・吸気通路、８Ａ・
・・第１吸気通路、８Ｂ・・・第２吸気通路、８ａ、　
　８ｂ・・・ポート部、９・・・通路開閉弁。FIG. 1 is a simplified configuration diagram showing one embodiment of the present invention, FIGS. 2 and 3 are sectional views of a portion of each intake passage in the same embodiment, and FIG. 2 is a schematic diagram of a first intake passage. FIG. 3 shows the port portion of the second intake passage.゛ 1... Cylinder, 2... First intake valve, 3... Second
Intake valve, 7...supercharger, 7A...exhaust turbine, 7
B...Intake compressor, 8...Intake passage, 8A.
...First intake passage, 8B...Second intake passage, 8a,
8b...port section, 9...passage opening/closing valve.

Claims

[Scope of utility model registration request]

(1) An exhaust turbine rotationally driven by engine exhaust;
In an internal combustion engine equipped with a supercharger consisting of an intake compressor that rotates integrally with the exhaust turbine to supply supercharged air to the engine, two intake valves are provided for each cylinder of the engine, and the intake compressor is provided with two intake valves for each cylinder of the engine. a first intake passage communicating with the first intake valve via the intake compressor; and a second intake passage communicating with the second intake valve without passing through the intake compressor;
An internal combustion engine with a supercharger, characterized in that an intake passage is provided with a passage opening/closing valve that opens and closes the passage according to engine operating conditions.

(2) The port portion of the first intake passage is formed in a shape that provides optimum swirl when the engine is at high speed, and the port portion of the second intake passage is formed in a shape that provides optimum swirl when the engine is at low speed. An internal combustion engine with a supercharger according to claim 1 of the utility model registration claim, characterized in that: