JPS63154765U - - Google Patents
Info
- Publication number
- JPS63154765U JPS63154765U JP4672287U JP4672287U JPS63154765U JP S63154765 U JPS63154765 U JP S63154765U JP 4672287 U JP4672287 U JP 4672287U JP 4672287 U JP4672287 U JP 4672287U JP S63154765 U JPS63154765 U JP S63154765U
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- pressure
- needle
- valve
- holes
- 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 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案による燃料噴射ノズルの断面図
、第２図は本考案による燃料噴射特性図、第３図
は従来のノズルにおける噴射燃料の分裂長さを示
す曲線図である。
２……ノズルボデイ、３ａ，３ｂ……噴孔、６
……第１ニードル弁、７……第２ニードル弁、１
２，１３……スプリング、１４……グロープラグ
。
FIG. 1 is a sectional view of a fuel injection nozzle according to the present invention, FIG. 2 is a fuel injection characteristic diagram according to the present invention, and FIG. 3 is a curve diagram showing the splitting length of injected fuel in a conventional nozzle. 2... Nozzle body, 3a, 3b... Nozzle hole, 6
...First needle valve, 7...Second needle valve, 1
2, 13...Spring, 14...Glow plug.
Claims (1)
料圧力を受けて前記噴孔を開閉する第１、第２ニ
ードル弁を設け、前記第１ニードル弁の開弁圧を
第２ニードル弁の開弁圧より低く設定した２段開
弁圧ノズルであり、グロープラグ付デイーゼル機
関に装備される燃料噴射ノズルにおいて、前記噴
孔の中でスワール上流側でグロープラグに最も近
接し、かつ前記第１ニードル弁により開閉される
噴孔の径を他の噴孔径より２．５〜１０％小径と
したことを特徴とするデイーゼル機関の燃料噴射
ノズル。 A nozzle body having a plurality of injection holes at its tip is provided with first and second needle valves that open and close the injection holes in response to fuel pressure, and the opening pressure of the first needle valve is used to control the opening of the second needle valve. It is a two-stage open valve pressure nozzle set lower than the pressure, and in a fuel injection nozzle installed in a diesel engine with a glow plug, the nozzle is closest to the glow plug on the upstream side of the swirl in the nozzle hole, and is the first needle A fuel injection nozzle for a diesel engine, characterized in that the diameter of the nozzle hole opened and closed by a valve is 2.5 to 10% smaller than the diameter of other nozzle holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4672287U JPS63154765U (en) | 1987-03-31 | 1987-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4672287U JPS63154765U (en) | 1987-03-31 | 1987-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63154765U true JPS63154765U (en) | 1988-10-11 |
Family
ID=30866646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4672287U Pending JPS63154765U (en) | 1987-03-31 | 1987-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63154765U (en) |
-
1987
- 1987-03-31 JP JP4672287U patent/JPS63154765U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6238478U (en) | ||
| JPS63154765U (en) | ||
| JPS63191267U (en) | ||
| JPH0482362U (en) | ||
| JPH01114979U (en) | ||
| JPH0213149U (en) | ||
| JPS6125532U (en) | double intake valve engine | |
| JPH01148060U (en) | ||
| JPH0218640U (en) | ||
| JPS60149872U (en) | Fuel injection nozzle for diesel engine | |
| JPS62195664U (en) | ||
| JPH0214462U (en) | ||
| JPS61126081U (en) | ||
| JPS63154764U (en) | ||
| JPS6369767U (en) | ||
| JPH0256855U (en) | ||
| JPS60164671U (en) | internal combustion engine fuel injection valve | |
| JPS6271372U (en) | ||
| JPH0264753U (en) | ||
| JPS6361571U (en) | ||
| JPS6058869U (en) | Hole type fuel injection nozzle | |
| JPS6371469U (en) | ||
| JPH0267062U (en) | ||
| JPS63150075U (en) | ||
| JPH01145939U (en) |