JPS60178363U

JPS60178363U - Internal combustion engine ignition timing control device

Info

Publication number: JPS60178363U
Application number: JP6647384U
Authority: JP
Inventors: 淳一横山
Original assignee: 日産自動車株式会社
Priority date: 1984-05-09
Filing date: 1984-05-09
Publication date: 1985-11-27

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図はこの考案の一実施例の全体図、第２図は第１図
の冷間時におけるリフト特性図、第３図は同じく温間時
におけるリフト特性図、第４図は冷間時及び温間時の進
角特性図、第５図は第１図にチェックバルブを付加した
実施例図、第６図は切換式サーモバルブ付の実施例図、
第７図は３段切換式サーモバルブ付の実施例図、第８図
はディレィバルブ付の実施例図、第９図は第８図の作動
状態図、第１０図は第８図のリフト特性図、第１１図は
同じく進角特性図、第１２図及び第１３図はル）ずれも
温度切換式のディレィバルブ付実施例図である。− 図面に現わした符号の説明、１・・・ディストリビュー
　夕、２・・・ブレーカプレート、４・・・真空進角装
置、５・・・第２負圧室、６・・・第２ダイヤフラム、
７・・・第１ダイヤフラム、訃・・第２スプリング、９
・・・第１スプリング、１０・・・ガイド、１２・・・
隔壁、１３・・・ロッド、１４・・・第１負圧室、１６
．２３．２Ｂ、３８．５０・・・サーモバルブ、２２・
・・チェックバルブ、３５・・・ディレィバルブ、４０
・・・ケース、４１・・・ロッド先端。Fig. 1 is an overall diagram of an embodiment of this invention, Fig. 2 is a lift characteristic diagram during cold conditions as shown in Fig. 1, Fig. 3 is a lift characteristic diagram during warm conditions, and Fig. 4 is a diagram of lift characteristics during cold conditions. and advance angle characteristic diagram during warm conditions, Figure 5 is an example diagram with a check valve added to Figure 1, Figure 6 is an example diagram with a switching thermo valve,
Figure 7 is an example diagram with a three-stage switching thermo valve, Figure 8 is an example diagram with a delay valve, Figure 9 is an operating state diagram of Figure 8, and Figure 10 is the lift characteristic of Figure 8. Figures 1 and 11 are advance angle characteristic diagrams, and Figures 12 and 13 are diagrams of embodiments with a temperature-switchable delay valve. - Explanation of the symbols shown in the drawings, 1...Distributor plate, 2...Breaker plate, 4...Vacuum advance device, 5...Second negative pressure chamber, 6...Second diaphragm ,
7...first diaphragm, butt...second spring, 9
...First spring, 10...Guide, 12...
Partition wall, 13... Rod, 14... First negative pressure chamber, 16
．． 23.2B, 38.50...Thermo valve, 22.
...Check valve, 35...Delay valve, 40
...Case, 41...Rod tip.

Claims

[Scope of utility model registration request]

A first diaphragm and a second diaphragm are provided in the case of the vacuum advance device, and a first negative pressure chamber and a second negative pressure chamber are formed between the first diaphragm and the case and between both diaphragms, and are fixed to the case. and a partition wall located between both diaphragms 5-A, the partition wall and the first Guyararam, and
A first spring and a second spring are installed between the two diaphragms, and the two diaphragms are engaged with each other so that relative displacement is possible.
An ignition timing control device for an internal combustion engine, comprising: a control device connected to the engine speed and controlling the difference in pressure on both sides of a first diaphragm.