JPH0430267U - - Google Patents
Info
- Publication number
- JPH0430267U JPH0430267U JP7082990U JP7082990U JPH0430267U JP H0430267 U JPH0430267 U JP H0430267U JP 7082990 U JP7082990 U JP 7082990U JP 7082990 U JP7082990 U JP 7082990U JP H0430267 U JPH0430267 U JP H0430267U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- fuel
- fuel pressure
- intake manifold
- chamber
- 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 24
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- 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
を示す概略断面図、第２図は先行技術による燃料
噴射装置の概略断面図、第３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Ｐ１との関係を示す図、第４図はエンジン回転
数に応じたパルス信号の周期を示す図、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
応じた調整燃圧Ｐ４を示す図、第６図は調整燃圧
Ｐ４と上流室の燃圧Ｐ５との関係を示す図、第７
図は差圧Ｐ１−Ｐ５と各燃料流量との関係を示す
図である。
２……エアクリーナ、３……スロツトルバルブ
、８……第一燃圧レギユレータ、１３……第二燃
圧レギユレータ、１５……大気圧室、１６……燃
料室、１７……ダイアフラム、２３……第三燃圧
レギユレータ、３０……燃料噴射弁、３１……計
量ジエツト、４３……通路。
FIG. 1 is a schematic sectional view showing an embodiment of a fuel injection device according to the present invention, FIG. 2 is a schematic sectional view of a fuel injection device according to the prior art, and FIG. 3 is a diagram showing the intake manifold pressure and fuel pressure P in the first fuel pressure regulator. Figure 4 is a diagram showing the period of the pulse signal depending on the engine speed, Figure 5 is a diagram showing the intake manifold pressure and the adjusted fuel pressure P4 depending on the engine speed, and Figure 6 is a diagram showing the relationship between the intake manifold pressure and the engine speed. The figure shows the relationship between the adjusted fuel pressure P4 and the fuel pressure P5 in the upstream chamber.
The figure is a diagram showing the relationship between the differential pressure P 1 -P 5 and each fuel flow rate. 2...Air cleaner, 3...Throttle valve, 8...First fuel pressure regulator, 13...Second fuel pressure regulator, 15...Atmospheric pressure chamber, 16...Fuel chamber, 17...Diaphragm, 23...No. Three fuel pressure regulators, 30... fuel injection valve, 31... metering jet, 43... passage.
Claims (1)
定する第一燃圧レギユレータと、大気圧が印加さ
れる大気圧室と一定の基準燃圧が設定される燃料
室とがダイアフラムによつて仕切られた第二燃圧
レギユレータを設けていて、前記インテークマニ
ホールド圧力に応じた燃圧と基準燃圧に基づいて
エンジン回転数のインテークマニホールド圧力に
応じた燃圧を設定して、燃料噴射弁の燃料噴射量
を制御するようにした燃料噴射装置において、 前記大気圧室をエアクリーナとスロツトバルブ
の間に連通せしめたことを特徴とする燃料噴射装
置。[Scope of Claim for Utility Model Registration] A first fuel pressure regulator that sets fuel pressure according to intake manifold pressure, an atmospheric pressure chamber to which atmospheric pressure is applied, and a fuel chamber to which a constant reference fuel pressure is set are connected by a diaphragm. A partitioned second fuel pressure regulator is provided, and the fuel pressure is set according to the intake manifold pressure of the engine speed based on the fuel pressure according to the intake manifold pressure and the reference fuel pressure, and the fuel injection amount of the fuel injection valve is controlled. 1. A fuel injection device characterized in that the atmospheric pressure chamber is communicated between an air cleaner and a slot valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7082990U JPH0430267U (en) | 1990-07-03 | 1990-07-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7082990U JPH0430267U (en) | 1990-07-03 | 1990-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0430267U true JPH0430267U (en) | 1992-03-11 |
Family
ID=31607323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7082990U Pending JPH0430267U (en) | 1990-07-03 | 1990-07-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0430267U (en) |
-
1990
- 1990-07-03 JP JP7082990U patent/JPH0430267U/ja active Pending