JPH0365867U - - Google Patents
Info
- Publication number
- JPH0365867U JPH0365867U JP12605089U JP12605089U JPH0365867U JP H0365867 U JPH0365867 U JP H0365867U JP 12605089 U JP12605089 U JP 12605089U JP 12605089 U JP12605089 U JP 12605089U JP H0365867 U JPH0365867 U JP H0365867U
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- pressure
- intake
- passage
- ignition timing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000013459 approach Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 description 1
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
Description
図面は本考案の実施例を示し、第１図は全体を
示す図、第２図は進角機構の拡大断面図、第３図
は他の実施例を示す図である。
１……吸気マニホールド、２……スロツトルボ
デー、３……スロツトル弁、４……エアクリーナ
、５……デイストリビユータ、７……ブレーカプ
レート、８……メイン進角機構、９……サブ進角
機構、１６……メイン進角機構における圧力室、
１９……サブ進角機構における圧力室、２３……
アドバンスポート、２４……第１負圧伝達通路、
２５……負圧取出ポート、２６……第２負圧伝達
通路、２７……大気導入通路、２８……制御回路
、２９……制御弁、３０，３１……圧力センサー
。
The drawings show an embodiment of the present invention, with FIG. 1 showing the whole, FIG. 2 an enlarged sectional view of the advance angle mechanism, and FIG. 3 showing another embodiment. 1... Intake manifold, 2... Throttle body, 3... Throttle valve, 4... Air cleaner, 5... Distributor, 7... Breaker plate, 8... Main advance angle mechanism, 9... Sub advance angle mechanism , 16...pressure chamber in the main advance mechanism,
19... Pressure chamber in sub-advance mechanism, 23...
Advance port, 24...first negative pressure transmission passage,
25... Negative pressure extraction port, 26... Second negative pressure transmission passage, 27... Atmospheric introduction passage, 28... Control circuit, 29... Control valve, 30, 31... Pressure sensor.
Claims (1)
室に負圧が作用すると点火時期を進角するように
した負圧作動式の進角機構を設けて、この進角機
構における圧力室に、スロツトル弁の閉位置より
やや上流側の部位に設けたアドバンスポート等の
吸気系からの負圧伝達通路を接続して成る点火時
期の制御装置において、前記スロツトル弁より下
流側における吸気系に、その吸気負圧を検出する
圧力センサーを設ける一方、前記進角機構におけ
る圧力室又は前記負圧伝達通路に大気導入通路を
接続し、該大気導入通路に、前記圧力センサーで
検出した吸気負圧が大気圧に近付くように変化す
るときの圧力変化が大きいとき開くようにした制
御弁を設けたことを特徴とする内燃機関における
点火時期の制御装置。 The distributor of an internal combustion engine is equipped with a negative pressure-operated advance mechanism that advances the ignition timing when negative pressure acts on the pressure chamber. In an ignition timing control device that connects a negative pressure transmission passage from an intake system such as an advance port located slightly upstream of the throttle valve, the intake negative pressure is transmitted to the intake system downstream of the throttle valve. A pressure sensor for detection is provided, and an atmosphere introduction passage is connected to the pressure chamber in the advance mechanism or the negative pressure transmission passage, and the air intake passage is connected to the atmosphere introduction passage so that the intake negative pressure detected by the pressure sensor approaches atmospheric pressure. 1. An ignition timing control device for an internal combustion engine, comprising a control valve that opens when a large pressure change occurs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12605089U JPH0365867U (en) | 1989-10-27 | 1989-10-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12605089U JPH0365867U (en) | 1989-10-27 | 1989-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0365867U true JPH0365867U (en) | 1991-06-26 |
Family
ID=31673889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12605089U Pending JPH0365867U (en) | 1989-10-27 | 1989-10-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0365867U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62251470A (en) * | 1986-04-23 | 1987-11-02 | Mazda Motor Corp | Ignition timing controller for engine |
-
1989
- 1989-10-27 JP JP12605089U patent/JPH0365867U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62251470A (en) * | 1986-04-23 | 1987-11-02 | Mazda Motor Corp | Ignition timing controller for engine |
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