JPH0417171U - - Google Patents
Info
- Publication number
- JPH0417171U JPH0417171U JP5895490U JP5895490U JPH0417171U JP H0417171 U JPH0417171 U JP H0417171U JP 5895490 U JP5895490 U JP 5895490U JP 5895490 U JP5895490 U JP 5895490U JP H0417171 U JPH0417171 U JP H0417171U
- Authority
- JP
- Japan
- Prior art keywords
- sensitive body
- pressure sensitive
- fuel
- fuel injection
- pressure
- 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 16
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Fluid-Driven Valves (AREA)
Description
第１図は本考案による燃料噴射弁の一実施例を
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Ｐ
４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
、第８図は燃料噴射弁の断面図、第９図は他の先
行技術における燃料噴射弁の断面図である。
２３，３５……燃料噴射弁、２６，３７……上
流室、２７，３９……下流室、２９，３８……差
圧ジエツト、３０，４０……バルブ、５２……金
属ベロー。
FIG. 1 is a schematic sectional view showing an embodiment of a fuel injection valve 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 adjusted fuel pressure P
FIG . 7 is a diagram showing the relationship between differential pressure P 1 - P 5 and each fuel flow rate, FIG. 8 is a cross-sectional view of the fuel injection valve, and FIG. The figure is a sectional view of another prior art fuel injection valve. 23, 35... Fuel injection valve, 26, 37... Upstream chamber, 27, 39... Downstream chamber, 29, 38... Differential pressure jet, 30, 40... Valve, 52... Metal bellows.
Claims (1)
とが感圧体によつて仕切られていて、前記上流室
又は下流室に印加される要求燃料流量に応じた燃
圧によつて感圧体を変位せしめ、該感圧体に連動
するバルブによつて燃料噴射量を制御するように
した燃料噴射弁において、 前記感圧体が金属ベローであることを特徴とす
る燃料噴射弁。[Claims for Utility Model Registration] An upstream chamber and a downstream chamber that communicate with each other via a differential pressure jet are separated by a pressure sensitive body, and the fuel flow rate is controlled according to the required fuel flow rate to be applied to the upstream chamber or the downstream chamber. A fuel injection valve in which a pressure sensitive body is displaced by fuel pressure and a fuel injection amount is controlled by a valve interlocked with the pressure sensitive body, characterized in that the pressure sensitive body is a metal bellows. fuel injection valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5895490U JPH0417171U (en) | 1990-06-04 | 1990-06-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5895490U JPH0417171U (en) | 1990-06-04 | 1990-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0417171U true JPH0417171U (en) | 1992-02-13 |
Family
ID=31585021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5895490U Pending JPH0417171U (en) | 1990-06-04 | 1990-06-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417171U (en) |
-
1990
- 1990-06-04 JP JP5895490U patent/JPH0417171U/ja active Pending