JPH03118271U - - Google Patents
Info
- Publication number
- JPH03118271U JPH03118271U JP2610290U JP2610290U JPH03118271U JP H03118271 U JPH03118271 U JP H03118271U JP 2610290 U JP2610290 U JP 2610290U JP 2610290 U JP2610290 U JP 2610290U JP H03118271 U JPH03118271 U JP H03118271U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- fuel injection
- valve
- valve element
- closing force
- 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 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図および第２図はこの考案の一実施例を示
すもので、第１図は概略構成を示す断面図、第２
図は第１図の−矢視拡大図、第３図および第
４図はこの考案の他の実施例を示すもので、第３
図はその概略構成を示す断面図、第４図は第３図
の円部の拡大図、第５図は燃料の圧力と作動油
の圧力との関係を示す図、第６図はこの考案のさ
らに他の実施例を示す断面図である。
１，１Ａ……燃料噴射ポンプ、２，２Ａ，２Ｂ
……燃料噴射ノズル、３，４……作動油供給手段
、１１……プランジヤ、１３……燃料加圧室、２
４，２４Ｂ，２４Ｃ……ニードル弁、２３ｂ，２
３ｅ，２３ｆ……弁座、２３ｃ，２３ｇ，２３ｈ
……噴射孔、３６，４６，５１……作動油室。
Figures 1 and 2 show an embodiment of this invention, with Figure 1 being a sectional view showing the schematic structure, and Figure 2
The figure is an enlarged view of FIG. 1 in the - arrow direction, and FIGS.
Figure 4 is an enlarged view of the circular part in Figure 3, Figure 5 is a diagram showing the relationship between fuel pressure and hydraulic oil pressure, and Figure 6 is a diagram showing the structure of this device. FIG. 7 is a sectional view showing still another embodiment. 1, 1A...Fuel injection pump, 2, 2A, 2B
... Fuel injection nozzle, 3, 4 ... Hydraulic oil supply means, 11 ... Plunger, 13 ... Fuel pressurization chamber, 2
4, 24B, 24C...needle valve, 23b, 2
3e, 23f... Valve seat, 23c, 23g, 23h
... Injection hole, 36, 46, 51 ... Hydraulic oil chamber.
Claims (1)
送され、この燃料による燃料噴射ノズルの弁体に
対する開弁力が弁体に対するの閉弁力より大きく
なると弁体が弁座からリフトして噴射孔を開き、
この噴射孔から燃料を噴射するように構成された
燃料噴射装置において、前記閉弁力を油圧によつ
て得ることを特徴とする燃料噴射装置。 Fuel is pumped from the fuel injection pump to the fuel injection nozzle, and when the opening force of this fuel against the valve element of the fuel injection nozzle becomes greater than the valve closing force against the valve element, the valve element lifts from the valve seat and opens the injection hole. ,
A fuel injection device configured to inject fuel from the injection hole, wherein the valve closing force is obtained by hydraulic pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2610290U JPH03118271U (en) | 1990-03-16 | 1990-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2610290U JPH03118271U (en) | 1990-03-16 | 1990-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03118271U true JPH03118271U (en) | 1991-12-06 |
Family
ID=31529013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2610290U Pending JPH03118271U (en) | 1990-03-16 | 1990-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03118271U (en) |
-
1990
- 1990-03-16 JP JP2610290U patent/JPH03118271U/ja active Pending