JPS6298768U - - Google Patents
Info
- Publication number
- JPS6298768U JPS6298768U JP19089285U JP19089285U JPS6298768U JP S6298768 U JPS6298768 U JP S6298768U JP 19089285 U JP19089285 U JP 19089285U JP 19089285 U JP19089285 U JP 19089285U JP S6298768 U JPS6298768 U JP S6298768U
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- needle valve
- fuel injection
- pressure
- housing
- 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 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図はこの考案の第１実施例を示す断面図、
第２図はそのリフト特性図、第３図はこの考案の
第２実施例を示す断面図、第４図は従来の燃料噴
射ノズルを示す断面図、第５図はそのリフト特性
図、第６図および第７図は夫々ニードル弁のリバ
ウンド時の状態を説明する要部の拡大断面図であ
る。
１……ノズルボデイ、２……噴孔、３……ニー
ドル弁、７……ノズルスプリング、１０……油溜
り部、２１ａ，２２ａ……対向面、２３ａ，２４
ａ……対向面。
FIG. 1 is a sectional view showing the first embodiment of this invention;
Fig. 2 is a lift characteristic diagram thereof, Fig. 3 is a sectional view showing a second embodiment of this invention, Fig. 4 is a sectional view showing a conventional fuel injection nozzle, Fig. 5 is a lift characteristic diagram thereof, and Fig. 6 is a sectional view showing a conventional fuel injection nozzle. FIG. 7 and FIG. 7 are enlarged cross-sectional views of essential parts, respectively, illustrating the state of the needle valve at the time of rebound. DESCRIPTION OF SYMBOLS 1... Nozzle body, 2... Nozzle hole, 3... Needle valve, 7... Nozzle spring, 10... Oil reservoir part, 21a, 22a... Opposing surface, 23a, 24
a... Opposing surface.
Claims (1)
有するノズルハウジングと、このノズルハウジン
グ内に摺動可能に収容され、かつ先端部が上記噴
孔を閉塞するとともに、油溜り部内の燃料圧力を
受ける受圧面を有するニードル弁と、このニード
ル弁を常時閉方向に付勢するノズルスプリングと
を備えてなる燃料噴射ノズルにおいて、上記ノズ
ルハウジングと上記ニードル弁とに、該ニードル
弁の摺動に伴つて互いに接近・離間する対向面を
形成し、かつニードル弁着座状態で両対向面間に
微小間隙が保たれるように構成したことを特徴と
する燃料噴射ノズル。 A nozzle housing that forms the outer shell of the fuel injection nozzle and has a nozzle hole at its tip; and a nozzle housing that is slidably housed within the nozzle housing, and that has a tip that closes the nozzle hole and controls the fuel pressure in the oil reservoir. In a fuel injection nozzle comprising a needle valve having a pressure-receiving surface that receives pressure, and a nozzle spring that normally biases the needle valve in the closing direction, the nozzle housing and the needle valve are provided with a sliding surface of the needle valve. 1. A fuel injection nozzle characterized in that opposing surfaces are formed that approach and separate from each other, and that a minute gap is maintained between the opposing surfaces when the needle valve is seated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19089285U JPS6298768U (en) | 1985-12-11 | 1985-12-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19089285U JPS6298768U (en) | 1985-12-11 | 1985-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6298768U true JPS6298768U (en) | 1987-06-23 |
Family
ID=31144526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19089285U Pending JPS6298768U (en) | 1985-12-11 | 1985-12-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6298768U (en) |
-
1985
- 1985-12-11 JP JP19089285U patent/JPS6298768U/ja active Pending
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