JPS5846870U - fuel injection nozzle - Google Patents
fuel injection nozzleInfo
- Publication number
- JPS5846870U JPS5846870U JP14382981U JP14382981U JPS5846870U JP S5846870 U JPS5846870 U JP S5846870U JP 14382981 U JP14382981 U JP 14382981U JP 14382981 U JP14382981 U JP 14382981U JP S5846870 U JPS5846870 U JP S5846870U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- nozzle
- needle valve
- fuel injection
- nozzle body
- 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図は従来例の要部の断面図、第２図は本考案の一実
施例を示す要部の断面図、第３図は針弁リフト量に対す
るノズル開口面積の特性図、第４図は燃料の噴射率と燃
焼による熱発生率との特性図である。
゛ １・・・針弁、２・・・ノズルボディ、４・・・燃
料溜り、５・・・通路、６・・・弁シート、７・・・円
筒部、訃・・シート部、９・・・サック部、１０・・・
噴口。Fig. 1 is a sectional view of the main part of the conventional example, Fig. 2 is a sectional view of the main part showing an embodiment of the present invention, Fig. 3 is a characteristic diagram of the nozzle opening area with respect to the needle valve lift amount, and Fig. 4 is a characteristic diagram of the fuel injection rate and the heat generation rate due to combustion.゛ 1... Needle valve, 2... Nozzle body, 4... Fuel reservoir, 5... Passage, 6... Valve seat, 7... Cylindrical part, End... Seat part, 9... ...Sack club, 10...
Spout.
Claims (1)
１こ形成した燃料溜りの内圧を上昇させることにより、
ノズルスプリングに抗して針弁をリフトさせて針弁先端
のシート部をノズルボディの弁シートから浮上させ、以
って、燃料溜りの燃料をノズルボディの先端部に形成し
たサック部から噴口を経て燃焼室内に噴射供給するよう
にした燃料噴射ノズルであって、ノズルボディに形成し
た燃料溜りと弁シートとを針弁の摺動方向に沿う円筒状
の通路を介して連通し、該通路に所定の隙間を以って嵌
合する円筒部を針弁の先端部に形成すると共に、前記弁
シートと対接するシート部を前記円筒部の先端面に形成
したことを特徴とする燃料噴射ノズル。By slidably inserting the needle valve into the nozzle body and increasing the internal pressure of the fuel reservoir formed by the nozzle body,
The needle valve is lifted against the nozzle spring, and the seat at the tip of the needle valve is lifted above the valve seat of the nozzle body, thereby allowing the fuel in the fuel reservoir to flow from the sac formed at the tip of the nozzle body to the nozzle. The fuel injection nozzle is configured to inject fuel into a combustion chamber through a fuel injection nozzle, in which a fuel reservoir formed in a nozzle body and a valve seat are communicated via a cylindrical passage along the sliding direction of a needle valve, and a fuel A fuel injection nozzle, characterized in that a cylindrical portion that fits with a predetermined gap is formed at the tip of a needle valve, and a seat portion that contacts the valve seat is formed on the tip surface of the cylindrical portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14382981U JPS5846870U (en) | 1981-09-28 | 1981-09-28 | fuel injection nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14382981U JPS5846870U (en) | 1981-09-28 | 1981-09-28 | fuel injection nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5846870U true JPS5846870U (en) | 1983-03-29 |
Family
ID=29936798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14382981U Pending JPS5846870U (en) | 1981-09-28 | 1981-09-28 | fuel injection nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5846870U (en) |
-
1981
- 1981-09-28 JP JP14382981U patent/JPS5846870U/en active Pending
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