JPS59177747U

JPS59177747U - Engine throttle valve control device

Info

Publication number: JPS59177747U
Application number: JP7228283U
Authority: JP
Inventors: 大内　清治; 牛島　賢児; 六車　卓
Original assignee: マツダ株式会社
Priority date: 1983-05-13
Filing date: 1983-05-13
Publication date: 1984-11-28

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 the drawing]

第１図は、自動車用エンジンにおける一次側絞弁の開度
とアクセル踏力の相関関係図、第２図は本考案実施例に
係る自動車用エンジンの絞弁制御装置の要部縦断面図、
第３図は第２図の絞弁制御装置の状態変化図である。１・・・二次側吸気通路、２・・・二次側吸気通路、３
・・・−次側絞弁、４・・・二次側絞弁、５・・・第１
回動レバー、６・・・Ｉｇ２回動レバー、２０・・・ア
クチュエータ、２１・・・第１ダイヤフラム装置、２２
・・・第２ダイヤフラム装置、３０・・・リターンスプ
リング、３１・・・第１負圧取出口、３２・・・第２負
圧取出口、３３・・・第１負圧管、３４・・・第２負圧
管、３７・・・操作杆、４３・・・アクセルペダル。 ↑　ｌ □ ニー！ツクオフ開度）　　　　゛　　全開ｅ−２１−開度　−すFIG. 1 is a diagram showing the correlation between the opening degree of the primary throttle valve and the accelerator pedal force in an automobile engine, and FIG. 2 is a longitudinal sectional view of the main part of the throttle valve control device for an automobile engine according to an embodiment of the present invention.
FIG. 3 is a state change diagram of the throttle valve control device of FIG. 2. 1...Secondary side intake passage, 2...Secondary side intake passage, 3
...-Outgoing throttle valve, 4...Secondary side throttle valve, 5...First
Rotating lever, 6... Ig2 rotating lever, 20... Actuator, 21... First diaphragm device, 22
...Second diaphragm device, 30...Return spring, 31...First negative pressure outlet, 32...Second negative pressure outlet, 33...First negative pressure pipe, 34... 2nd negative pressure pipe, 37... operating rod, 43... accelerator pedal. ↑ l □ Knee! Tsuk-off opening) ゛ Fully open e-21-opening -S

Claims

[Claims for Utility Model Registration] The intake passage of the engine is divided into a primary side intake passage and a secondary side intake passage, and the opening and closing of the secondary side intake passage is controlled by an external operating force in the entire operating range of the engine. The engine is equipped with a primary throttle valve which is connected to the primary throttle valve, and a secondary throttle valve in the secondary intake passage whose opening and closing are controlled by an appropriate actuator in relation to the opening of the downstream throttle valve. The throttle valve control device includes a first diaphragm device in which the actuator acts to increase the opening degree of the secondary throttle valve as the venturi negative pressure of the engine increases, and the opening degree of the secondary throttle valve. When the opening is below a predetermined opening degree, the secondary valve receives a relatively large intake negative pressure. When the side throttle valve is positioned at the fully open position, and when the opening degree of the downstream side throttle valve is equal to or higher than a predetermined opening degree, the secondary side throttle valve is opened by the first diaphragm device under negative intake pressure close to atmospheric pressure. 1. A throttle valve control device for an engine, comprising a second diaphragm device that operates to permit opening operation.