JPH0361165U - - Google Patents
Info
- Publication number
- JPH0361165U JPH0361165U JP12288689U JP12288689U JPH0361165U JP H0361165 U JPH0361165 U JP H0361165U JP 12288689 U JP12288689 U JP 12288689U JP 12288689 U JP12288689 U JP 12288689U JP H0361165 U JPH0361165 U JP H0361165U
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- sub
- ignition timing
- passage
- throttle valve
- 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 7
- 238000002485 combustion reaction Methods 0.000 claims 2
- 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である。
１…吸気マニホールド、２…気化器、３…スロ
ツトル弁、４…デイストリビユータ、６…ブレー
カプレート、７…メイン進角機構、８…サブ進角
機構、１５…メイン進角機構における圧力室、１
８…サブ進角機構における圧力室、２２…アドバ
ンスポート、２３…第１負圧伝達通路、２４…負
圧取出ポート、２５…第２負圧伝達通路、２６…
連通通路、２７…開閉弁。
The drawings show an embodiment of the present invention, with FIG. 1 being an overall view and FIG. 2 being an enlarged sectional view of the advance angle mechanism. DESCRIPTION OF SYMBOLS 1... Intake manifold, 2... Carburizer, 3... Throttle valve, 4... Distributor, 6... Breaker plate, 7... Main advance angle mechanism, 8... Sub advance angle mechanism, 15... Pressure chamber in main advance angle mechanism, 1
8... Pressure chamber in sub-advance mechanism, 22... Advance port, 23... First negative pressure transmission passage, 24... Negative pressure extraction port, 25... Second negative pressure transmission passage, 26...
Communication passage, 27...opening/closing valve.
Claims (1)
力室に負圧が作用すると点火時期を進角するよう
にしたサブ進角機構と、圧力室に負圧が作用する
と前記サブ進角機構で進角した点火時期を更に進
角するようにしたメイン進角機構とを連結し、前
記サブ進角機構における圧力室に、スロツトル弁
より下流側における吸気通路からのサブ負圧伝達
通路を、前記メイン進角機構における圧力室に、
前記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からのメイン負圧伝達
通路を各々接続して成る点火時期制御装置におい
て、前記メイン負圧伝達通路とサブ負圧伝達通路
とを連通通路にて互いに接続して、この連通通路
中に、前記スロツトル弁の略全閉のとき閉で、ス
ロツトル弁を開くと開き作動するようにした開閉
弁を設ける一方、前記サブ負圧伝達通路のうち前
記連通通路と吸気通路との間の部位に、吸気通路
への方向にのみ開くようにした逆止弁を設けたこ
とを特徴とする自動車用内燃機関の点火時期制御
装置。 A distributor of an internal combustion engine for an automobile has a sub-advance mechanism that advances the ignition timing when negative pressure acts on the pressure chamber, and a sub-advance mechanism that advances the ignition timing when negative pressure acts on the pressure chamber. The ignition timing is connected to a main advance mechanism that further advances the ignition timing, and a sub negative pressure transmission passage from an intake passage downstream of the throttle valve is connected to the pressure chamber of the sub advance mechanism. In the pressure chamber in the mechanism,
In an ignition timing control device in which main negative pressure transmission passages from advance ports provided at a portion slightly upstream of the closed position of the throttle valve are connected to each other, the main negative pressure transmission passage and the sub negative pressure transmission passage are connected to each other. An on-off valve is provided in the communication passage, which is connected to each other through a communication passage, and is closed when the throttle valve is substantially fully closed, and opens when the throttle valve is opened, while the sub-negative pressure transmission passage An ignition timing control device for an internal combustion engine for an automobile, characterized in that a check valve that opens only toward the intake passage is provided between the communication passage and the intake passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12288689U JPH0361165U (en) | 1989-10-19 | 1989-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12288689U JPH0361165U (en) | 1989-10-19 | 1989-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0361165U true JPH0361165U (en) | 1991-06-14 |
Family
ID=31670882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12288689U Pending JPH0361165U (en) | 1989-10-19 | 1989-10-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0361165U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51136046A (en) * | 1975-05-17 | 1976-11-25 | Toyota Motor Corp | Double diaphragm distributor of internal combustion engine |
-
1989
- 1989-10-19 JP JP12288689U patent/JPH0361165U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51136046A (en) * | 1975-05-17 | 1976-11-25 | Toyota Motor Corp | Double diaphragm distributor of internal combustion engine |
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