JPH0424661U - - Google Patents
Info
- Publication number
- JPH0424661U JPH0424661U JP6672490U JP6672490U JPH0424661U JP H0424661 U JPH0424661 U JP H0424661U JP 6672490 U JP6672490 U JP 6672490U JP 6672490 U JP6672490 U JP 6672490U JP H0424661 U JPH0424661 U JP H0424661U
- Authority
- JP
- Japan
- Prior art keywords
- bleed air
- flow rate
- discharge port
- rate regulating
- 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 11
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 1
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。
２３……燃料噴射弁、２６ａ……吐出口、３４
……ブリードエア通路、３７……流量規制絞り、
３８……アクセルブリードエアポンプ、３９……
圧力室、４０……空気室、４２……ダイアフラム
。
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 according to the engine rotation speed, Figure 5 is a diagram showing the intake manifold pressure and the adjusted fuel pressure P4 according to the engine rotation speed, and Figure 6 is a diagram showing the relationship between the intake manifold pressure and the engine rotation 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. 23...Fuel injection valve, 26a...Discharge port, 34
... Bleed air passage, 37 ... Flow rate regulating throttle,
38...Accelerator bleed air pump, 39...
Pressure chamber, 40... air chamber, 42... diaphragm.
Claims (1)
側開口を、燃料噴射弁の吐出口近傍に配置し、該
吐出口からの噴射燃料にブリードエアを吸引混入
させるようにした燃料噴射装置において、 インテークマニホールド圧力が大気圧に近くな
ると空気を前記流量規制絞り下流側のブリードエ
ア通路へ押し出すアクセルブリードエアポンプを
備えたことを特徴とするブリードエア供給機構。[Scope of Claim for Utility Model Registration] The downstream opening of the flow rate regulating throttle in the bleed air passage is arranged near the discharge port of the fuel injection valve, and the bleed air is sucked and mixed into the fuel injected from the discharge port. A bleed air supply mechanism in an injection device, comprising an accelerator bleed air pump that pushes air into a bleed air passage downstream of the flow rate regulating throttle when intake manifold pressure approaches atmospheric pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6672490U JPH0424661U (en) | 1990-06-22 | 1990-06-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6672490U JPH0424661U (en) | 1990-06-22 | 1990-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0424661U true JPH0424661U (en) | 1992-02-27 |
Family
ID=31599675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6672490U Pending JPH0424661U (en) | 1990-06-22 | 1990-06-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0424661U (en) |
-
1990
- 1990-06-22 JP JP6672490U patent/JPH0424661U/ja active Pending
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