JPS613968U

JPS613968U - Internal combustion engine ignition timing control device

Info

Publication number: JPS613968U
Application number: JP8807684U
Authority: JP
Inventors: 淳一横山
Original assignee: 日産自動車株式会社
Priority date: 1984-06-15
Filing date: 1984-06-15
Publication date: 1986-01-11

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 drawings]

第１図にこの考案の第１実施例の全体図で始動前の状態
図、第２図は同じくアイドル状態図、第３図は同じく絞
弁全開の状態図、第４図は主として第１実施例の進角特
性を示す図、第５図は第２実施例の全体図、第６図は第
３実施例の釡体図、第７図は第４実施例の全体図、第８
図は第５実施例の全体図、第９図は第６図実施例の真空
進角装置を示す部分図である。図面に現わした符号の説明、１・・・デイストリビー
ユータ、２・・・プレー力プレート、４・・・ケース、
，２Ｌ３０，５０・・・真空進角装置、８，５１・・
・弁体、１０・・・第１ダイヤフラム、１１・・・弁−
座、１２・・・第２ダイヤフラム、１３・・・第１負圧
室、１４・・・第２負圧室、１５・・・隔壁、１６・・
・スプリングζ１７・・・ストツパ、１８・・・絞弁、
１９・・・第１負圧ポート、２０・・・第２負圧ポート
、２２，５２・・・補助スプリング、２４，４１・・・
サーモバルブミ３５・・・デイレイバルブ。Fig. 1 shows the overall state of the first embodiment of this invention before starting, Fig. 2 shows the idle state, Fig. 3 shows the throttle valve fully open, and Fig. 4 mainly shows the state of the first embodiment. Figure 5 is an overall view of the second embodiment, Figure 6 is a frame diagram of the third embodiment, Figure 7 is an overall diagram of the fourth embodiment, and Figure 8 is a diagram showing the advance angle characteristics of the example.
This figure is an overall view of the fifth embodiment, and FIG. 9 is a partial view showing the vacuum advance angle device of the embodiment shown in FIG. Explanation of symbols appearing in the drawings, 1...Daistribee
User, 2... Playing force plate, 4... Case,
, 2L 30, 50... Vacuum advance angle device, 8, 51...
・Valve body, 10...first diaphragm, 11...valve-
Seat, 12... Second diaphragm, 13... First negative pressure chamber, 14... Second negative pressure chamber, 15... Partition wall, 16...
・Spring ζ17...stopper, 18...throttle valve,
19... First negative pressure port, 20... Second negative pressure port, 22, 52... Auxiliary spring, 24, 41...
Thermo Valve Mi 35...Delay Valve.

Claims

[Scope of utility model registration request]

A first diaphragm 1 and a second diaphragm are provided in the case of the vacuum advance device to form a first negative pressure chamber and a second negative pressure chamber between the two diaphragms and between the case and the second diaphragm. A partition is provided between the first diaphragm and the second diaphragm, a spring is disposed between the partition and the first diaphragm, the first diaphragm is connected to the play force plate, and at least the pressure difference between the two negative pressure chambers is maintained. An ignition timing control device for an internal combustion engine configured such that both diaphragms are integrated with respect to movement of the second diaphragm in one direction.