JPH0424662U - - Google Patents
Info
- Publication number
- JPH0424662U JPH0424662U JP6672590U JP6672590U JPH0424662U JP H0424662 U JPH0424662 U JP H0424662U JP 6672590 U JP6672590 U JP 6672590U JP 6672590 U JP6672590 U JP 6672590U JP H0424662 U JPH0424662 U JP H0424662U
- Authority
- JP
- Japan
- Prior art keywords
- bleed air
- flow rate
- fuel injection
- discharge port
- rate regulating
- 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 12
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000013459 approach Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
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、４１……ダイヤフラム
。
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, 41...diaphragm.
Claims (1)
下流側開口を燃料噴射弁の吐出口近傍に配設し、
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、 前記流量規制絞りの上流側のブリードエア通路
に、インテークマニホールド圧力が大気圧に近く
なると空気を下流側開口から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 bleed air passage in which the flow rate regulating throttle is arranged is arranged near the discharge port of the fuel injection valve,
In a fuel injection device that sucks and mixes bleed air into the fuel injected from the discharge port, when the intake manifold pressure approaches atmospheric pressure, air is drawn into the bleed air passage upstream of the flow rate regulating throttle from the downstream opening. A bleed air supply mechanism characterized by being equipped with an accelerator bleed air pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6672590U JPH0424662U (en) | 1990-06-22 | 1990-06-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6672590U JPH0424662U (en) | 1990-06-22 | 1990-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0424662U true JPH0424662U (en) | 1992-02-27 |
Family
ID=31599677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6672590U Pending JPH0424662U (en) | 1990-06-22 | 1990-06-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0424662U (en) |
-
1990
- 1990-06-22 JP JP6672590U patent/JPH0424662U/ja active Pending
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