JPS6155139U - - Google Patents
Info
- Publication number
- JPS6155139U JPS6155139U JP13860984U JP13860984U JPS6155139U JP S6155139 U JPS6155139 U JP S6155139U JP 13860984 U JP13860984 U JP 13860984U JP 13860984 U JP13860984 U JP 13860984U JP S6155139 U JPS6155139 U JP S6155139U
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- timer
- negative pressure
- injection timing
- engine
- 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
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000000446 fuel Substances 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
Description
第１図は本考案の一実施例に係るデイーゼルエ
ンジンの噴射時期制御装置の断面図、第２図は第
１図の装置のアクチユエータの連結状態を示す部
分断面図、第３図はエンジン温度と噴射タイミン
グ進角量との関係図、である。
１……タイマ、２……タイマハウジング、３…
…タイマピストン、４……タイマピストン高圧室
、７……タイマスプリング、１０……スプリング
受け、１１……調整ロツド、１２……タイマカバ
ー、１３……レバー、１４……アクチユエータ、
１５……ロツド、１６……ダイヤフラム、１７…
…第１の室、１８……第２の室、１９……第１の
負圧回路、２０……第２の負圧回路、２３……感
温弁、２５……バキユムームタンク、２６……バ
キユムームポンプ、２７……逆止弁、３０……絞
り。
FIG. 1 is a cross-sectional view of an injection timing control device for a diesel engine according to an embodiment of the present invention, FIG. 2 is a partial cross-sectional view showing the connected state of the actuator of the device in FIG. 1, and FIG. 3 is a diagram showing engine temperature and FIG. 3 is a relationship diagram with the injection timing advance amount. 1...Timer, 2...Timer housing, 3...
...Timer piston, 4...Timer piston high pressure chamber, 7...Timer spring, 10...Spring receiver, 11...Adjustment rod, 12...Timer cover, 13...Lever, 14...Actuator,
15...rod, 16...diaphragm, 17...
...First chamber, 18...Second chamber, 19...First negative pressure circuit, 20...Second negative pressure circuit, 23...Temperature sensing valve, 25...Vacuum tank, 26 ... Vacuum pump, 27 ... Check valve, 30 ... Throttle.
Claims (1)
マのタイマピストンを、燃料噴射ポンプのポンプ
室からタイマピストン高圧室に導いた燃料圧とタ
イマピストンを噴射遅れ方向に付勢するタイマス
プリングとによりバランスさせて位置を制御する
ようにしたデイーゼルエンジンの噴射時期制御装
置において、前記タイマに、タイマスプリングの
設定圧を変更可能で負圧によつて制御されるアク
チユエータを連結し、該アクチユエータを、ダイ
ヤフラムにより第１の室と第２の室とに隔成され
るダイヤフラム弁から構成し、前記第１の室には
、エンジンが所定温度以下のときにバキユームタ
ンクからの負圧を導入し所定温度以上のときに大
気に連通させる第１の負圧回路を接続するととも
に、前記第２の室には、エンジン運転時にバキユ
ムームポンプからの負圧を絞りを介して導入しエ
ンジン停止時に大気に連通させる第２の負圧回路
を接続したことを特徴とするデイーゼルエンジン
の噴射時期制御装置。 The timer piston of the timer that controls the fuel injection timing of the fuel injection pump is balanced by the fuel pressure led from the pump chamber of the fuel injection pump to the timer piston high pressure chamber and the timer spring that biases the timer piston in the injection delay direction. In the injection timing control device for a diesel engine, the timer is connected to an actuator that is capable of changing the setting pressure of a timer spring and is controlled by a negative pressure, and the actuator is connected to the first injection timing by a diaphragm. It is composed of a diaphragm valve separated into a chamber and a second chamber, and negative pressure from the vacuum tank is introduced into the first chamber when the engine temperature is below a predetermined temperature, and when the engine temperature is above a predetermined temperature. A first negative pressure circuit that communicates with the atmosphere is connected to the chamber, and a first negative pressure circuit that introduces negative pressure from the vacuum pump into the second chamber through a throttle when the engine is running and communicates with the atmosphere when the engine is stopped is connected to the second chamber. An injection timing control device for a diesel engine, characterized in that a negative pressure circuit of No. 2 is connected to the injection timing control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13860984U JPS6155139U (en) | 1984-09-14 | 1984-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13860984U JPS6155139U (en) | 1984-09-14 | 1984-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6155139U true JPS6155139U (en) | 1986-04-14 |
Family
ID=30696998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13860984U Pending JPS6155139U (en) | 1984-09-14 | 1984-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6155139U (en) |
-
1984
- 1984-09-14 JP JP13860984U patent/JPS6155139U/ja active Pending
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