JPS6312660U - - Google Patents
Info
- Publication number
- JPS6312660U JPS6312660U JP10558186U JP10558186U JPS6312660U JP S6312660 U JPS6312660 U JP S6312660U JP 10558186 U JP10558186 U JP 10558186U JP 10558186 U JP10558186 U JP 10558186U JP S6312660 U JPS6312660 U JP S6312660U
- Authority
- JP
- Japan
- Prior art keywords
- spring
- needle valve
- nozzle holder
- seating position
- nozzle
- 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
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案によるノズルホルダの一実施例
を示す断面図、第２図は第１図の部分的拡大図、
第３図ａ，ｂは本考案と従来のスプリング特性を
示すグラフ、第４図は本考案におけるクランク角
と油溜内圧力―針弁リフト―ドツジプランジヤリ
フトの関係をしめすグラフ、第５図ａ，ｂは本考
案と従来の低速域での噴射特性を模式的に示すグ
ラフである。
１……ノズルホルダ本体、２……ノズル、４…
…針弁、５……ドツジプランジヤ、６……不等ピ
ツチスプリング。
FIG. 1 is a sectional view showing an embodiment of the nozzle holder according to the present invention, FIG. 2 is a partially enlarged view of FIG. 1,
Figures 3a and b are graphs showing the spring characteristics of the present invention and the conventional spring. Figure 4 is a graph showing the relationship between crank angle and oil reservoir pressure - needle valve lift - dodge plunger lift in the present invention. Figure 5. Graphs a and b are graphs schematically showing the injection characteristics in the low speed range of the present invention and the conventional method. 1... Nozzle holder body, 2... Nozzle, 4...
... Needle valve, 5... Double plunger, 6... Unequal pitch spring.
Claims (1)
向に付勢するスプリングと、着座位置からの移動
により受圧面積が切り替えられかつ着座位置から
の変位量に伴つて前記スプリングを圧縮させるド
ツジプランジヤとを備え、燃料噴射ポンプからの
吐出燃料圧力を受けて開・閉弁方向に針弁が作動
させられると共にドツジプランジヤが変位させら
れるノズルホルダにおいて、前記スプリングを不
等ピツチスプリングで構成したことを特徴とする
ノズルホルダ。 a spring that biases a needle valve inserted in a nozzle so as to be freely advanced and retractable; and a double plunger whose pressure receiving area is switched by movement from a seating position and which compresses the spring in accordance with the amount of displacement from the seating position. In the nozzle holder, the needle valve is actuated in the opening/closing direction in response to the discharge fuel pressure from the fuel injection pump, and the dodge plunger is displaced, characterized in that the spring is constituted by an unequal pitch spring. Nozzle holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10558186U JPS6312660U (en) | 1986-07-11 | 1986-07-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10558186U JPS6312660U (en) | 1986-07-11 | 1986-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6312660U true JPS6312660U (en) | 1988-01-27 |
Family
ID=30980145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10558186U Pending JPS6312660U (en) | 1986-07-11 | 1986-07-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6312660U (en) |
-
1986
- 1986-07-11 JP JP10558186U patent/JPS6312660U/ja active Pending
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