JPH0424665U - - Google Patents
Info
- Publication number
- JPH0424665U JPH0424665U JP6456790U JP6456790U JPH0424665U JP H0424665 U JPH0424665 U JP H0424665U JP 6456790 U JP6456790 U JP 6456790U JP 6456790 U JP6456790 U JP 6456790U JP H0424665 U JPH0424665 U JP H0424665U
- Authority
- JP
- Japan
- Prior art keywords
- fuel pressure
- chamber
- pressure regulator
- opening area
- fuel
- 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
- 239000000446 fuel Substances 0.000 claims description 20
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案による燃料噴射装置の一実施例
を示す要部断面図、第２図は第一燃圧レギユレー
タにおけるインテークマニホールド圧力と燃圧Ｐ
１の関係を示す図、第３図は第一固定ジエツトに
おける前後差圧Ｐ１−Ｐ３と燃料流量Ｑ１の関係
を示す図、第４図はインテークマニホールド圧力
とエンジン回転数に応じた燃料流量Ｑ４の変化を
示す図、第５図はインテークマニホールド圧力と
エンジン回転数に応じた燃料流量Ｑ４，Ｑ５及び
Ｑｏｕｔの関係を示す図である。
２……第一燃圧レギユレータ、６……第二燃圧
レギユレータ、１１……燃料噴射弁、１２……第
一室、１３……第二室、１４……ダイアフラム、
１５……バルブ、２０……第一固定ジエツト、２
１……第一ソレノイドバルブ、２７……第二固定
ジエツト、２８……第二ソレノイドバルブ。
Fig. 1 is a sectional view of essential parts showing an embodiment of the fuel injection device according to the present invention, and Fig. 2 shows intake manifold pressure and fuel pressure P in the first fuel pressure regulator.
Figure 3 is a diagram showing the relationship between front and rear differential pressure P 1 - P 3 and fuel flow rate Q 1 at the first fixed jet, Figure 4 is a diagram showing the relationship between intake manifold pressure and engine speed A diagram showing changes in the flow rate Q 4 , and FIG. 5 is a diagram showing the relationship between the fuel flow rates Q 4 , Q 5 , and Q out according to the intake manifold pressure and the engine speed. 2...First fuel pressure regulator, 6...Second fuel pressure regulator, 11...Fuel injection valve, 12...First chamber, 13...Second chamber, 14...Diaphragm,
15... Valve, 20... First fixed jet, 2
1...First solenoid valve, 27...Second fixed jet, 28...Second solenoid valve.
Claims (1)
定する第一燃圧レギユレータと、該燃圧より低い
一定燃圧に制御する第二燃圧レギユレータと、該
第二燃圧レギユレータの燃圧が印加される第一室
と吐出口を有する第二室とが該吐出口を開閉する
バルブを連動せしめるダイアフラムにより仕切ら
れ且つ両室の差圧が一定に制御される燃料噴射弁
と、前記第一燃圧レギユレータと第二室を夫々連
通せしめる第一固定ジエツト及びエンジン回転数
に応じて開口面積を制御する第一電磁的開口面積
調整手段と、前記第二室と第二燃圧レギユレータ
を夫々連通せしめる第二固定ジエツト及びエンジ
ン回転数に応じて開口面積を制御する第二電磁的
開口面積調整手段とを備えた燃料噴射装置。 It has a first fuel pressure regulator that sets the fuel pressure according to the intake manifold pressure, a second fuel pressure regulator that controls the fuel pressure to a constant fuel pressure lower than the fuel pressure, a first chamber to which the fuel pressure of the second fuel pressure regulator is applied, and a discharge port. A fuel injection valve whose second chamber is partitioned by a diaphragm that interlocks a valve that opens and closes the discharge port and whose differential pressure between both chambers is controlled to be constant, and a fuel injection valve which communicates the first fuel pressure regulator with the second chamber, respectively A first electromagnetic opening area adjusting means for controlling the opening area according to the fixed jet and the engine rotation speed; and a second fixed jet for communicating the second chamber and the second fuel pressure regulator, respectively, for controlling the opening area according to the engine rotation speed. a second electromagnetic opening area adjustment means for controlling the area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6456790U JPH0424665U (en) | 1990-06-19 | 1990-06-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6456790U JPH0424665U (en) | 1990-06-19 | 1990-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0424665U true JPH0424665U (en) | 1992-02-27 |
Family
ID=31595629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6456790U Pending JPH0424665U (en) | 1990-06-19 | 1990-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0424665U (en) |
-
1990
- 1990-06-19 JP JP6456790U patent/JPH0424665U/ja active Pending
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