JPH0442267U - - Google Patents
Info
- Publication number
- JPH0442267U JPH0442267U JP8407590U JP8407590U JPH0442267U JP H0442267 U JPH0442267 U JP H0442267U JP 8407590 U JP8407590 U JP 8407590U JP 8407590 U JP8407590 U JP 8407590U JP H0442267 U JPH0442267 U JP H0442267U
- Authority
- JP
- Japan
- Prior art keywords
- needle valve
- nozzle
- nozzle body
- valve
- base
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図から第５図までの図面はこの考案の一実
施例を示すものであり、第１図は燃料噴射ノズル
の縦断面図、第２図は同要部拡大縦断面図、第３
図はスリーブの外観斜視図、第４図は第１図−
断面図、第５図は第１図−断面図である。
又、第６図は従来の燃料噴射ノズルの縦断面図で
ある。
２０……燃料噴射ノズル、２１……ノズルボデ
イ、２２……ノズルホルダ、２３……圧力室、２
５……基端面、２６……摺動孔、２７……針弁、
３１……燃料通路、３３……溝、３４……スリー
ブ、３５……底板部（ストツパ）、４６……ノズ
ルスプリング、４７……開弁圧調整用シム（開弁
圧調整用部材）。
The drawings from Fig. 1 to Fig. 5 show one embodiment of this invention, in which Fig. 1 is a longitudinal sectional view of the fuel injection nozzle, Fig. 2 is an enlarged longitudinal sectional view of the same main part, and Fig. 3 is an enlarged longitudinal sectional view of the same main part.
The figure is an external perspective view of the sleeve, and Figure 4 is Figure 1-
The sectional view, FIG. 5, is a sectional view of FIG. 1.
Moreover, FIG. 6 is a longitudinal sectional view of a conventional fuel injection nozzle. 20... Fuel injection nozzle, 21... Nozzle body, 22... Nozzle holder, 23... Pressure chamber, 2
5...Proximal end surface, 26...Sliding hole, 27...Needle valve,
31... Fuel passage, 33... Groove, 34... Sleeve, 35... Bottom plate (stopper), 46... Nozzle spring, 47... Valve opening pressure adjustment shim (valve opening pressure adjustment member).
Claims (1)
する針弁がその軸線方向へ摺動可能に挿通され、
ノズルボデイとその基部に連結されたノズルホル
ダとの間に形成される圧力室に、上記針弁の基部
が収容され、この針弁が、針弁とノズルボデイと
の間であつて針弁の基部の外側に配置されたノズ
ルスプリングによつてノズルホルダ側へ付勢され
ており、上記ノズルスプリングに抗する力を燃料
から加えられた時に針弁がその軸線方向先端側へ
移動して閉弁状態から開弁状態になる燃料噴射ノ
ズルにおいて、 針弁の外周面には、閉弁状態の時のノズルボデ
イの基端面から針弁のリフト長さに相当する寸法
だけノズルホルダ側へ離間して周方向に沿う溝が
形成され、この溝に針弁よりもその径方向外側へ
張り出すストツパが嵌合固定されており、ノズル
スプリングとノズルボデイの間に、平面視略Ｃ字
形をなす開弁圧調整用部材が針弁を挟み込むよう
にして取り付けられていることを特徴とする燃料
噴射ノズル。[Claim for Utility Model Registration] A needle valve having a fuel passage inside is inserted into the sliding hole of the nozzle body so as to be slidable in its axial direction,
The base of the needle valve is accommodated in a pressure chamber formed between the nozzle body and a nozzle holder connected to the base of the nozzle body, and the needle valve is located between the needle valve and the nozzle body and at the base of the needle valve. It is biased toward the nozzle holder by a nozzle spring placed on the outside, and when a force is applied from the fuel that resists the nozzle spring, the needle valve moves toward the tip in its axial direction and changes from the closed state. In the fuel injection nozzle that is in the open state, the outer peripheral surface of the needle valve is spaced in the circumferential direction from the proximal end surface of the nozzle body to the nozzle holder side by a distance corresponding to the lift length of the needle valve when the valve is in the closed state. A stopper that protrudes radially outward from the needle valve is fitted and fixed into this groove, and a valve-opening pressure adjusting member is formed between the nozzle spring and the nozzle body and is approximately C-shaped in plan view. A fuel injection nozzle characterized in that the needle valve is attached so as to sandwich the needle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8407590U JPH085339Y2 (en) | 1990-08-10 | 1990-08-10 | Fuel injection nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8407590U JPH085339Y2 (en) | 1990-08-10 | 1990-08-10 | Fuel injection nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0442267U true JPH0442267U (en) | 1992-04-09 |
| JPH085339Y2 JPH085339Y2 (en) | 1996-02-14 |
Family
ID=31632264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8407590U Expired - Lifetime JPH085339Y2 (en) | 1990-08-10 | 1990-08-10 | Fuel injection nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH085339Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009041560A (en) * | 2007-07-09 | 2009-02-26 | Delphi Technologies Inc | Injection device for reactant |
-
1990
- 1990-08-10 JP JP8407590U patent/JPH085339Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009041560A (en) * | 2007-07-09 | 2009-02-26 | Delphi Technologies Inc | Injection device for reactant |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH085339Y2 (en) | 1996-02-14 |