JPS58137873U - Fuel injection nozzle for diesel engine - Google Patents
Fuel injection nozzle for diesel engineInfo
- Publication number
- JPS58137873U JPS58137873U JP3389182U JP3389182U JPS58137873U JP S58137873 U JPS58137873 U JP S58137873U JP 3389182 U JP3389182 U JP 3389182U JP 3389182 U JP3389182 U JP 3389182U JP S58137873 U JPS58137873 U JP S58137873U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- diesel engine
- injection nozzle
- needle
- spring
- 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
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の実施例として示すディーゼルエンジン
用燃料噴射ノズルの断面図、第２図は通常の燃料噴射の
場合のばねの初期たわみおよびニードル用ストッパ位置
を示す図、第３図は圧電素子に電圧を印加した場合のば
ねの初期たわみおよびニードル用ストッパ位置を示す図
である。
１・・・ディーゼルエンジン用燃料噴射ノズル、４・・
・ノズルボデー、８・・・油溜まり、１１・・・ニード
ル、１２・・・噴孔、１５・・・ばね、１６・・・ばね
座金、２１・・・圧電素子、２５・・・ニードル用スト
ッパ。Figure 1 is a sectional view of a fuel injection nozzle for a diesel engine shown as an embodiment of the present invention, Figure 2 is a diagram showing the initial deflection of the spring and the position of the needle stopper in the case of normal fuel injection, and Figure 3 is a piezoelectric It is a figure which shows the initial deflection of a spring and the stopper position for needles when voltage is applied to an element. 1...Fuel injection nozzle for diesel engine, 4...
・Nozzle body, 8... Oil reservoir, 11... Needle, 12... Nozzle hole, 15... Spring, 16... Spring washer, 21... Piezoelectric element, 25... Needle stopper .
Claims (1)
るとニードルはねに抗して移動して噴孔から燃料が噴射
するディーゼルエンジン用燃料噴射ノズルにおいて、デ
ィーゼルエンジンの運転期間中に任意の燃料噴射に対し
てばねの初期たわみおよび（または）ニードルの最大行
程を調整し得る手段が設けられていることを特徴とする
、ディーゼルエンジン用燃料噴射ノズル。 ２ ばねの初期たわみ調整手段が、軸線方向長さを変化
してばね座金の軸線方向位置を変化させる圧電素子を含
むことを特徴とする、実用新案登録請求の範囲第１項記
載のディーゼルエンジン用燃料噴射ノズル。 ３ ニードルの最大行程調整手段が、圧電素子の軸線方
向長さの変化により位置を変化するニードル用ストッパ
であることを特徴とする、実用新案登録請求の範囲第１
項記載のディーゼルエンジン用燃料噴射ノズル。[Scope of Claim for Utility Model Registration] 1. A fuel injection nozzle for a diesel engine in which when the fuel pressure in the oil reservoir in the nozzle body reaches a predetermined value, the needle moves against the splashing and injects fuel from the nozzle hole. A fuel injection nozzle for a diesel engine, characterized in that means are provided with which the initial deflection of the spring and/or the maximum stroke of the needle can be adjusted for any fuel injection during the operating period of the engine. 2. For a diesel engine according to claim 1, wherein the spring initial deflection adjustment means includes a piezoelectric element that changes the axial length of the spring washer to change the axial position of the spring washer. fuel injection nozzle. 3 Utility model registration claim 1, characterized in that the needle maximum stroke adjustment means is a needle stopper whose position changes according to changes in the axial length of the piezoelectric element.
A fuel injection nozzle for a diesel engine as described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3389182U JPS58137873U (en) | 1982-03-12 | 1982-03-12 | Fuel injection nozzle for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3389182U JPS58137873U (en) | 1982-03-12 | 1982-03-12 | Fuel injection nozzle for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58137873U true JPS58137873U (en) | 1983-09-16 |
Family
ID=30045416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3389182U Pending JPS58137873U (en) | 1982-03-12 | 1982-03-12 | Fuel injection nozzle for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58137873U (en) |
-
1982
- 1982-03-12 JP JP3389182U patent/JPS58137873U/en active Pending
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