JPH0261130U

JPH0261130U -

Info

Publication number: JPH0261130U
Application number: JP14176188U
Authority: JP
Priority date: 1988-10-27
Filing date: 1988-10-27
Publication date: 1990-05-07

Description

[Brief explanation of drawings]

図面は本考案の実施例を例示し、第１図は平面
図、第２図は正面図、第３図は側面図である。１…エンジン、１ａ，１ｂ…気筒、３…低負荷
用吸気通路、４…高負荷用吸気通路、８…第１連
通路、９…第２連通路、１１…第１制御弁、１２
…第２制御弁、３０…湾曲部、３１…リブ。 The drawings illustrate an embodiment of the invention, with FIG. 1 being a plan view, FIG. 2 being a front view, and FIG. 3 being a side view. DESCRIPTION OF SYMBOLS 1...Engine, 1a, 1b...Cylinder, 3...Intake passage for low load, 4...Intake passage for high load, 8...First communication passage, 9...Second communication passage, 11...First control valve, 12
...Second control valve, 30...Curved portion, 31...Rib.

Claims

[Scope of utility model registration request]

For each cylinder, a low-load intake passage that supplies intake air during low loads and a high-load intake passage that supplies intake air during high loads are connected, respectively, and the low-load intake passages are connected to a first communication passage between the cylinders. Accordingly, the high-load intake passages are connected to each other by a second communication passage, control valves are provided in the first communication passage and the second communication passage, respectively, and the low-load intake passage is connected to the high-load intake passage so as to bypass the high-load intake passage. An intake manifold structure for an engine, characterized in that a passage is curved and a rib is provided inside the curved part to connect a low-load intake passage and a high-load intake passage.