JPS601964U

JPS601964U - Engine ignition timing control device

Info

Publication number: JPS601964U
Application number: JP9210483U
Authority: JP
Inventors: 太田　明秀; 戸恒　厚志; 櫛田　孝隆
Original assignee: 本田技研工業株式会社
Priority date: 1983-06-17
Filing date: 1983-06-17
Publication date: 1985-01-09

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図は従来例の説明線図、第２図はその制御特性線図
、第３図はノッキング限界の説明線図、第４図は本案装
置の１例の説明線図、第５図はその制御特性の線図であ
る。１・・・第１負圧室、２・・・第２負圧室、３・・・負
圧アクチュエータ、４・・・吸気通路、５・・・絞り弁
、６・・・第１負圧通路、７・・・第２負圧通路、８・
・・感温弁、９・・・大気導入口、１０・・・側路、１
１・・・制御弁。Fig. 1 is an explanatory diagram of the conventional example, Fig. 2 is its control characteristic diagram, Fig. 3 is an explanatory diagram of the knocking limit, Fig. 4 is an explanatory diagram of an example of the proposed device, and Fig. 5 is an explanatory diagram of the conventional example. It is a diagram of its control characteristics. DESCRIPTION OF SYMBOLS 1... First negative pressure chamber, 2... Second negative pressure chamber, 3... Negative pressure actuator, 4... Intake passage, 5... Throttle valve, 6... First negative pressure Passage, 7... Second negative pressure passage, 8.
...Temperature-sensitive valve, 9...Air inlet, 10...Side passage, 1
1... Control valve.

Claims

[Claims for Utility Model Registration] 1. A negative pressure actuator 3 for ignition timing control having a first negative pressure chamber 1 and a second negative pressure chamber 2, the first negative pressure chamber 1 and the second negative pressure chamber A first negative pressure passage 6 and a second negative pressure passage 7 are provided which communicate with the intake air of the engine and the downstream side of the throttle valve 5 of the passage 4. In a type that branches an atmospheric pressure inlet 9 having a temperature-sensitive valve 8 that closes, a side passage 10 for introducing negative pressure connects the first negative pressure passage 6 with an upstream side and a downstream side of the inlet 9. and a control valve 1 that opens when the engine is in a cruise state.
An engine ignition timing control device comprising: 2. The control valve 11 opens when the vehicle speed of the vehicle driven by the engine exceeds a predetermined value, or when both the intake negative pressure and rotational speed of the engine exceed the predetermined value (Claim No. 1 of Claims for Utility Model Registration) 3. The ignition timing control device for an engine as set forth in paragraph 1 of the Utility Model Registration Claim, in which each throttle 9a. .