JPH0212057U - - Google Patents
Info
- Publication number
- JPH0212057U JPH0212057U JP9000988U JP9000988U JPH0212057U JP H0212057 U JPH0212057 U JP H0212057U JP 9000988 U JP9000988 U JP 9000988U JP 9000988 U JP9000988 U JP 9000988U JP H0212057 U JPH0212057 U JP H0212057U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- passage
- valve
- needle valve
- passage means
- 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 9
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第1図はこの考案の好適一実施例を示す断面図
、第2図は噴射率の変化を示す性能図、第3図は
低負荷状態を示す燃料噴射ノズルの断面図、第4
図は中高負荷状態を示す燃料噴射ノズルの断面図
、第5図は従来例としての燃料噴射弁を示す断面
図である。
図中、2はノズルボデイ、3は針弁、6は受圧
部、14は燃料通路、15は環状溝、16は縦溝
、19は隙間、20は連通路である。
Fig. 1 is a sectional view showing a preferred embodiment of this invention, Fig. 2 is a performance chart showing changes in injection rate, Fig. 3 is a sectional view of a fuel injection nozzle showing a low load state, and Fig. 4 is a sectional view showing a preferred embodiment of this invention.
The figure is a cross-sectional view of a fuel injection nozzle showing a medium-high load state, and FIG. 5 is a cross-sectional view of a conventional fuel injection valve. In the figure, 2 is a nozzle body, 3 is a needle valve, 6 is a pressure receiving part, 14 is a fuel passage, 15 is an annular groove, 16 is a vertical groove, 19 is a gap, and 20 is a communication passage.
Claims (1)
れた針弁の受圧部に開弁方向の燃圧を作用させる
燃料通路と、針弁の後端側に形成されて針弁の後
方に区画された隙間内へリーク燃料を導く通路手
段と、燃料通路から分岐されて針弁の低リフト値
で通路手段と連通する連通路とを備えた燃料噴射
ノズル。 A fuel passage is formed in the nozzle body to apply fuel pressure in the valve opening direction to the pressure receiving part of the needle valve, which is biased in the valve closing direction. A fuel injection nozzle comprising passage means for guiding leaked fuel into a gap, and a communication passage branching from the fuel passage and communicating with the passage means at a low lift value of a needle valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9000988U JPH0212057U (en) | 1988-07-08 | 1988-07-08 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9000988U JPH0212057U (en) | 1988-07-08 | 1988-07-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0212057U true JPH0212057U (en) | 1990-01-25 |
Family
ID=31314546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9000988U Pending JPH0212057U (en) | 1988-07-08 | 1988-07-08 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0212057U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009138613A (en) * | 2007-12-05 | 2009-06-25 | Mitsubishi Heavy Ind Ltd | Fuel injection valve of pressure accumulation-type fuel injection device |
-
1988
- 1988-07-08 JP JP9000988U patent/JPH0212057U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009138613A (en) * | 2007-12-05 | 2009-06-25 | Mitsubishi Heavy Ind Ltd | Fuel injection valve of pressure accumulation-type fuel injection device |
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