JPH0476966U - - Google Patents
Info
- Publication number
- JPH0476966U JPH0476966U JP12028590U JP12028590U JPH0476966U JP H0476966 U JPH0476966 U JP H0476966U JP 12028590 U JP12028590 U JP 12028590U JP 12028590 U JP12028590 U JP 12028590U JP H0476966 U JPH0476966 U JP H0476966U
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- needle valve
- main
- auxiliary
- outer needle
- 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 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図はこの考案の一実施例を示す燃料噴射ノ
ズルの縦断側面図、第２図は２段噴射の噴射特性
図、第３図は従来の燃料噴射ノルの縦断側面図で
ある。
１１……ノズルホルダ、１７……主ノズル、１
９……副ノズル、２０……外側ニードルバルブ、
２２……内側ニードルバルブ。
FIG. 1 is a longitudinal sectional side view of a fuel injection nozzle showing an embodiment of this invention, FIG. 2 is an injection characteristic diagram of two-stage injection, and FIG. 3 is a longitudinal sectional side view of a conventional fuel injection nozzle. 11... Nozzle holder, 17... Main nozzle, 1
9... Sub nozzle, 20... Outer needle valve,
22...Inner needle valve.
Claims (1)
たノズルホルダと、このノズルホルダに内挿され
前記主ノズルを開閉する外側ニードルバルブと、
この外側ニードルバルブに内挿され前記副ノズル
を開閉するとともに、前記外側ニードルバルブよ
りも低圧で開弁する内側ニードルバルブとから構
成し、主ノズルからの主噴射に先立ち副ノズルか
ら副噴射させることを特徴とする燃料噴射ノズル
。 a nozzle holder having a main nozzle and a small-diameter sub-nozzle at its tip; an outer needle valve inserted into the nozzle holder to open and close the main nozzle;
An inner needle valve is inserted into the outer needle valve to open and close the auxiliary nozzle, and opens at a lower pressure than the outer needle valve, and the auxiliary injection is performed from the auxiliary nozzle prior to the main injection from the main nozzle. A fuel injection nozzle featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12028590U JPH0476966U (en) | 1990-11-19 | 1990-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12028590U JPH0476966U (en) | 1990-11-19 | 1990-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0476966U true JPH0476966U (en) | 1992-07-06 |
Family
ID=31868198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12028590U Pending JPH0476966U (en) | 1990-11-19 | 1990-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0476966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014020323A (en) * | 2012-07-20 | 2014-02-03 | Denso Corp | Fuel injection valve |
-
1990
- 1990-11-19 JP JP12028590U patent/JPH0476966U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014020323A (en) * | 2012-07-20 | 2014-02-03 | Denso Corp | Fuel injection valve |