JPS61197216U

JPS61197216U -

Info

Publication number: JPS61197216U
Application number: JP8062985U
Authority: JP
Priority date: 1985-05-29
Filing date: 1985-05-29
Publication date: 1986-12-09

Description

[Brief explanation of the drawing]

第１図は、本考案の第１実施例による内燃機関
の吸気装置の概略図、第２図は、本考案の第２実
施例による内燃機関の吸気装置の概略図、第３図
は、本考案の第３実施例による内燃機関の吸気装
置の概略図、第４図は、本考案の第４実施例によ
る内燃機関の吸気装置の概略図である。８……タイミングベルトケース、９…サブ通路
、１０……メイン通路。 1 is a schematic diagram of an intake system for an internal combustion engine according to a first embodiment of the present invention, FIG. 2 is a schematic diagram of an intake system for an internal combustion engine according to a second embodiment of the present invention, and FIG. 3 is a schematic diagram of an intake system for an internal combustion engine according to a second embodiment of the present invention. FIG. 4 is a schematic diagram of an intake system for an internal combustion engine according to a fourth embodiment of the present invention. 8...Timing belt case, 9...Sub passage, 10...Main passage.

Claims

[Scope of utility model registration request]

In an internal combustion engine intake system that sucks air ventilated inside the internal combustion engine's timing belt case, the intake air introduction passage is divided into two systems: a sub passage that passes through the timing belt case, and a main passage that bypasses the timing belt case. An intake system for an internal combustion engine, characterized in that the air intake passage is divided into two parts, and when the temperature detected from the engine exceeds a predetermined value during idling operation, the intake air introduction passage is switched from the main passage to the sub passage.