JPS613970U - Internal combustion engine ignition timing control device - Google Patents

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの考案の第１実施例の全体図で冷間時低負荷
状態図、第２図は同じく冷間時高負荷状態図、第３図は
負圧及び距離特性図、第４図は進角特性爾、第５図は第
１実施例のサーモブルブの温間状態図、第６図は第２実
施例の全体図で冷間状態図、第７図は同じく温間状態図
、第８図４１第３実施例の全体図、第９図は第４実施例
の全体図、第１０図は第５実施例の全体図で極く冷間状
態図、第１１図は同じく冷間状態図、第１２図は同じく
暖機後の状態図、第１３図は同じく進角特性図、第１４
図は第６実施例の全体図、第１５図は第７実施例の全体
図、第１６図は第８実施徊の全体図、第１７図は同じく
進角特性図である。 図面に表わした符号の説明、１・・・プレー力プレート
、４，２４，３４，４４，５４・・・真空進角装置、６
・・・第１ダイヤフラム、７・・・第２ダイヤフラム、
９，２７・・・第３ダイヤフラム、８，３５・・・スト
ツパ、１０・・・第１負圧室、１１・・・第２負圧室、
１２・・・第３負圧室、１５・・・スプリング、１６・
・・第２ストツパ、２０，２９，３６，３９，４５，４
７， ４９， ５１・・・サーモバルブ（制御装置
）。Figure 1 is an overall view of the first embodiment of this invention, showing a low load state when cold, Figure 2 a diagram showing a high load state when cold, Figure 3 a negative pressure and distance characteristic diagram, and Figure 4. is the advance angle characteristic, FIG. 5 is a warm state diagram of the thermobulb of the first embodiment, FIG. 6 is an overall view of the second embodiment and is a cold state diagram, and FIG. 7 is also a warm state diagram. 8 Figure 41 is an overall view of the third embodiment, Figure 9 is an overall view of the fourth embodiment, Figure 10 is an overall view of the fifth embodiment in an extremely cold state, and Figure 11 is also in a cold state. Figure 12 is a state diagram after warm-up, Figure 13 is an advance angle characteristic diagram, and Figure 14 is a diagram of the advance angle characteristic.
15 is an overall view of the seventh embodiment, FIG. 16 is an overall view of the eighth embodiment, and FIG. 17 is a lead angle characteristic diagram. Explanation of symbols shown in the drawings: 1... Play force plate, 4, 24, 34, 44, 54... Vacuum advance angle device, 6
...first diaphragm, 7...second diaphragm,
9, 27... Third diaphragm, 8, 35... Stopper, 10... First negative pressure chamber, 11... Second negative pressure chamber,
12... Third negative pressure chamber, 15... Spring, 16...
...Second stopper, 20, 29, 36, 39, 45, 4
7, 49, 51...Thermo valve (control device).

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 真空進角装置のケース内に第１ダイヤフラムと第２ダイ
ヤフララと第３ダイヤフラムを設けて第１負圧室と第２
負圧室と第３負圧室を形成し、第１ダイヤフラムと第２
ダイヤフラム間にスプリングを設置し、第２ダイヤフラ
ムと第３ダイヤフラムとを離間するストツパを設け、少
くとも第２負圧室の圧力を機関運転条件に応じて変える
制御装置を設け、第１ダイヤフラムをブレー男プレート
に連結してなる内燃機関の点火時期制御装置。A first diaphragm, a second diaphragm, and a third diaphragm are provided in the case of the vacuum advance device, and a first negative pressure chamber and a second diaphragm are provided.
A negative pressure chamber and a third negative pressure chamber are formed, and the first diaphragm and the second
A spring is installed between the diaphragms, a stopper is provided to separate the second diaphragm and the third diaphragm, a control device is provided to change the pressure in at least the second negative pressure chamber according to engine operating conditions, and the first diaphragm is controlled by a brake. An ignition timing control device for an internal combustion engine connected to a male plate.