JPS6282314U

JPS6282314U -

Info

Publication number: JPS6282314U
Application number: JP17299485U
Authority: JP
Priority date: 1985-11-12
Filing date: 1985-11-12
Publication date: 1987-05-26

Description

[Brief explanation of the drawing]

第１図は使用状態の系統説明図、第２図は作用
状態の特性説明線図、第３図及び第４図は他の実
施例の系統説明図、第５図は従来例の系統説明図
である。１……エアクリーナー、２……リードバルブ、
３……吸気通路、４……排気通路、５……電磁バ
ルブ、６……アクチユエータ、７……リンク、８
……バイパスボツクス、８_１……バイパス通路、
９……切換弁、９_１……仕切板。 Fig. 1 is an explanatory diagram of the system in the usage state, Fig. 2 is an explanatory diagram of the characteristics in the operating state, Figs. 3 and 4 are explanatory diagrams of the system of other embodiments, and Fig. 5 is an explanatory diagram of the system of the conventional example. It is. 1...Air cleaner, 2...Reed valve,
3... Intake passage, 4... Exhaust passage, 5... Solenoid valve, 6... Actuator, 7... Link, 8
...Bypass box, 8 ₁ ...Bypass passage,
9...Switching valve, 9 ₁ ...Partition plate.

Claims

[Claims for Utility Model Registration] 1. In a secondary air introduction device that opens into an exhaust passage of an internal combustion engine via an intake passage, the length of the intake passage can be varied according to changes in the rotation of the internal combustion engine. A second internal combustion engine characterized by comprising a bypass passage communicating with an intake passage and a switching valve for opening and closing the bypass passage, and the switching valve is connected to an operating mechanism controlled by rotation of the internal combustion engine. Next air introduction device. 2. A claim for registration of a utility model in which the bypass passage is comprised of a bypass box communicating with the intake passage, a fixed partition plate forming a bypass flow path within the box, and a movable partition plate capable of selecting two passages. A secondary air introduction device for an internal combustion engine according to item 1. 3. The scope of the utility model registration claim 1 or 2, wherein the switching valve is a movable partition plate that opens and closes a communication portion between the intake passage and the bypass passage, and is provided with a pivotable part so as to be freely pivotable. A secondary air introduction device for an internal combustion engine as described in . 4. The utility model registration claim wherein the switching valve is a partition plate that is reciprocatably inserted into the bypass passage and is connected to a stepping motor that is operated in accordance with the rotation of an internal combustion engine. Range 1
A secondary air introduction device for an internal combustion engine according to item 1 or 2. 5. The operating mechanism of the switching valve is comprised of a control mechanism that can be operated by a signal detected by a rotation sensor of an internal combustion engine, and an actuator that can be operated by negative intake pressure of the internal combustion engine. 3
A secondary air introduction device for an internal combustion engine as described in . 6. The internal combustion engine according to claim 4, wherein the switching valve is a T-shaped partition plate and is slidably fitted into a bypass box so as to be moved to an arbitrary position. Secondary air introduction device.