JPS59130071U - fuel injection nozzle - Google Patents
fuel injection nozzleInfo
- Publication number
- JPS59130071U JPS59130071U JP2324883U JP2324883U JPS59130071U JP S59130071 U JPS59130071 U JP S59130071U JP 2324883 U JP2324883 U JP 2324883U JP 2324883 U JP2324883 U JP 2324883U JP S59130071 U JPS59130071 U JP S59130071U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- injection nozzle
- annular gap
- nozzle
- 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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は噴射特性を説明するための図、第２図は本考案
の一実施例を示す断面図、第３図は同実施例の要部を示
す拡大断面図、第４図は第３図におけるＩＶ−ＩＶ線断
面図、第５図は作用説明図、第６図、第７図は本考案の
それぞれ他の実施例を示す第４図相当の断面図である。
２・・・ノズル本体、４・・・弁座部、５・・・噴口、
５ａ・・・内周面、６・・・針弁、７・・・小径円柱部
、８・・・環状隙間、８ａ・・・幅広部、８ｂ・・・幅
狭部、９・・・凹陥部。Fig. 1 is a diagram for explaining the injection characteristics, Fig. 2 is a sectional view showing an embodiment of the present invention, Fig. 3 is an enlarged sectional view showing the main parts of the embodiment, and Fig. 4 is a diagram showing the third embodiment. 5 is an explanatory view of the operation, and FIGS. 6 and 7 are sectional views corresponding to FIG. 4 showing other embodiments of the present invention. 2... Nozzle body, 4... Valve seat part, 5... Spout,
5a...Inner peripheral surface, 6...Needle valve, 7...Small diameter cylindrical portion, 8...Annular gap, 8a...Wide portion, 8b...Narrow width portion, 9...Concave recess Department.
Claims (1)
部を微小な環状隙間を介して遊嵌させておき、初期段階
で微少な燃料を前記環状隙間を通して予備的に噴射し得
るように構成した燃料噴射ノズルにおいて、前記噴口の
内周面に仮想円柱面に対して外側へ偏位する凹陥部を形
成し、前記環状隙間を幅広部と幅狭部とからなるものに
したことを特徴とする燃料噴射ノズル。A small diameter cylindrical part formed at the tip of the needle valve is loosely fitted into the nozzle formed in the valve seat part through a minute annular gap, so that a minute amount of fuel can be preliminarily injected through the annular gap at an initial stage. In the fuel injection nozzle configured as above, a concave portion is formed on the inner circumferential surface of the nozzle port and is deviated outward with respect to the virtual cylindrical surface, and the annular gap is made up of a wide portion and a narrow portion. Features a fuel injection nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2324883U JPS59130071U (en) | 1983-02-19 | 1983-02-19 | fuel injection nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2324883U JPS59130071U (en) | 1983-02-19 | 1983-02-19 | fuel injection nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59130071U true JPS59130071U (en) | 1984-08-31 |
Family
ID=30154336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2324883U Pending JPS59130071U (en) | 1983-02-19 | 1983-02-19 | fuel injection nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59130071U (en) |
-
1983
- 1983-02-19 JP JP2324883U patent/JPS59130071U/en active Pending
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