JPH046768U - - Google Patents
Info
- Publication number
- JPH046768U JPH046768U JP4688490U JP4688490U JPH046768U JP H046768 U JPH046768 U JP H046768U JP 4688490 U JP4688490 U JP 4688490U JP 4688490 U JP4688490 U JP 4688490U JP H046768 U JPH046768 U JP H046768U
- Authority
- JP
- Japan
- Prior art keywords
- needle
- fuel injection
- compression spring
- rod
- injection valve
- 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
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は燃料噴射弁の一部の側面断面図、第２
図は別の実施例を示す燃料噴射弁の一部の側面断
面図、第３図はニードルのリフト量Ｌおよび模式
的に表わした燃料噴射率Ｑの変化を示す線図であ
る。
５……ニードル、６……加圧ピン、７……ロツ
ド、１１……第１圧縮ばね、１２……第２圧縮ば
ね、１８……ピストン部材。
Figure 1 is a side cross-sectional view of a part of the fuel injection valve;
The figure is a side sectional view of a part of a fuel injection valve showing another embodiment, and FIG. 3 is a diagram showing changes in the lift amount L of the needle and the fuel injection rate Q schematically. 5... Needle, 6... Pressure pin, 7... Rod, 11... First compression spring, 12... Second compression spring, 18... Piston member.
Claims (1)
れたニードルと、ニードルに作用する燃料圧によ
つてニードルが予め定められたリフト量まで上昇
する間はニードルと連動せずニードルが予め定め
られたリフト量を越えた後にはニードルと共に上
昇するロツドと、該ロツドをニードル閉弁方向に
付勢する第２の圧縮ばねとを具備した燃料噴射弁
において、上記ニードルに対してニードルの急激
な上昇運動を抑制するダンパ装置を設けた内燃機
関の燃料噴射弁。 The needle is normally biased in the valve closing direction by the first compression spring, and while the needle is raised to a predetermined lift amount by the fuel pressure acting on the needle, the needle is not interlocked with the needle and the needle is In a fuel injection valve equipped with a rod that rises together with the needle after a predetermined lift amount is exceeded, and a second compression spring that biases the rod in the needle closing direction, A fuel injection valve for an internal combustion engine equipped with a damper device that suppresses upward movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4688490U JPH046768U (en) | 1990-05-07 | 1990-05-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4688490U JPH046768U (en) | 1990-05-07 | 1990-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH046768U true JPH046768U (en) | 1992-01-22 |
Family
ID=31562342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4688490U Pending JPH046768U (en) | 1990-05-07 | 1990-05-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH046768U (en) |
-
1990
- 1990-05-07 JP JP4688490U patent/JPH046768U/ja active Pending