JPS58108267U - Throttle type fuel injection nozzle - Google Patents
Throttle type fuel injection nozzleInfo
- Publication number
- JPS58108267U JPS58108267U JP472982U JP472982U JPS58108267U JP S58108267 U JPS58108267 U JP S58108267U JP 472982 U JP472982 U JP 472982U JP 472982 U JP472982 U JP 472982U JP S58108267 U JPS58108267 U JP S58108267U
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- fuel injection
- tip
- nozzle hole
- type fuel
- 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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のスロットル型燃料噴射ノズル先端部の拡
大説明図、第２図は本考案によるスロットル型燃料噴射
ノズル先端部の拡大説明図、第３−図は噴孔空気量とニ
ードルリフトの関係を模式的に示すグラフである。
１．１１・・・ノズルニードル、ｌｂ、ｌｌｂ・・・ピ
ン部、２．１２・・・ノズルボデー、２ｂ、１２ｂ・・
・噴孔、１２Ｃ・・・開口部、３．１３・・・燃料通路
。Fig. 1 is an enlarged explanatory view of the tip of a conventional throttle type fuel injection nozzle, Fig. 2 is an enlarged explanatory view of the tip of a throttle type fuel injection nozzle according to the present invention, and Fig. 3 is an enlarged explanatory view of the tip of the throttle type fuel injection nozzle according to the present invention. It is a graph schematically showing the relationship. 1.11... Nozzle needle, lb, llb... Pin part, 2.12... Nozzle body, 2b, 12b...
- Nozzle hole, 12C... opening, 3.13... fuel passage.
Claims (1)
ルボデーの噴孔内（こ嵌挿され、ピン部と噴孔との間に
燃料通路となるクリアランスが形成サレ、ノズルニード
ルのリフトによって燃料が上記燃料通路を通って噴孔の
開口部より噴射される内燃機関のスロットル型燃料噴射
ノズルにおいて、上記ノズルボデーの噴孔を直円筒形と
する一方、ノズルニードルのピン部を先太の逆テーパ付
円筒形とし、そのピン部先端の最大径部と噴孔内径との
間のクリアランスを極小とすると共に、ノズルニードル
の着座時ピン部先端の最大径部が噴孔先端の開口部より
所定長さ突出して形成されたことを特徴とするスロット
ル型燃料噴射ノズル。The tip of the nozzle needle has a pin part, and the pin part is inserted into the nozzle hole of the nozzle body, creating a clearance between the pin part and the nozzle hole that becomes a fuel passage, and the fuel is removed by lifting the nozzle needle. In a throttle type fuel injection nozzle for an internal combustion engine in which fuel is injected from an opening of a nozzle hole through the fuel passage, the nozzle body has a right cylindrical nozzle hole, and a pin portion of the nozzle needle has a reverse taper with a thicker end. The clearance between the maximum diameter part of the tip of the pin part and the inner diameter of the nozzle hole is minimized, and the maximum diameter part of the tip of the pin part is a predetermined distance from the opening of the tip of the nozzle hole when the nozzle needle is seated. A throttle type fuel injection nozzle characterized in that it is formed in a protruding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP472982U JPS58108267U (en) | 1982-01-18 | 1982-01-18 | Throttle type fuel injection nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP472982U JPS58108267U (en) | 1982-01-18 | 1982-01-18 | Throttle type fuel injection nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58108267U true JPS58108267U (en) | 1983-07-23 |
Family
ID=30017563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP472982U Pending JPS58108267U (en) | 1982-01-18 | 1982-01-18 | Throttle type fuel injection nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58108267U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6282362U (en) * | 1985-11-13 | 1987-05-26 |
-
1982
- 1982-01-18 JP JP472982U patent/JPS58108267U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6282362U (en) * | 1985-11-13 | 1987-05-26 |
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