JPS6439427U

JPS6439427U -

Info

Publication number: JPS6439427U
Application number: JP10462688U
Authority: JP
Priority date: 1988-08-08
Filing date: 1988-08-08
Publication date: 1989-03-09

Description

[Brief explanation of the drawing]

第１図は本考案の実施例の要部水平断面図、第
２図は機関全体の概略図、第３図は本考案の実施
例を示す断面図、第４図は２次空気制御弁の他の
実施例を示す断面図である。１……エンジン、２……インテークマニホルド
、３……燃料供給装置、４……２次空気制御装置
、５……２次空気供給装置、６……インテークバ
ルブ、７……ＥＣＵ、８……センサ、９……三方
電磁弁、１０……制御通路、１１……負圧通路、
１２……大気通路、１３……ダイアフラム、１６
……制御弁、１７……制御弁シート、１９……バ
イパススロツトルバルブ、２０……調圧室、２１
……主スロツトルバルブ、２２……リンク、２３
……混合気吸入通路、２４……２次空気吐出口、
２５……プランジヤ、２６……通路、２７……シ
リンダ、２９……コイル、３１……ステータ。 Fig. 1 is a horizontal sectional view of the main part of an embodiment of the present invention, Fig. 2 is a schematic diagram of the entire engine, Fig. 3 is a sectional view showing an embodiment of the invention, and Fig. 4 is a secondary air control valve. FIG. 7 is a sectional view showing another embodiment. DESCRIPTION OF SYMBOLS 1...Engine, 2...Intake manifold, 3...Fuel supply device, 4...Secondary air control device, 5...Secondary air supply device, 6...Intake valve, 7...ECU, 8... Sensor, 9... Three-way solenoid valve, 10... Control passage, 11... Negative pressure passage,
12...Atmospheric passage, 13...Diaphragm, 16
... Control valve, 17 ... Control valve seat, 19 ... Bypass throttle valve, 20 ... Pressure regulation chamber, 21
...Main throttle valve, 22...Link, 23
...Mixture intake passage, 24...Secondary air discharge port,
25... Plunger, 26... Passage, 27... Cylinder, 29... Coil, 31... Stator.

Claims

[Scope of utility model registration request]

In a secondary air supply device in which a discharge port of a secondary air supply passage equipped with a secondary air control valve is located in the air-fuel mixture intake passage for each cylinder immediately before that cylinder, the secondary air supply passage 5 is The secondary air is characterized by having a tip protruding into the mixture suction passage 23, and a secondary air discharge port 24 opening along the inner peripheral surface of the mixture suction passage 23 on the side thereof. Feeding device.