JPS599163U - Fuel injection nozzle for in-cylinder injection - Google Patents

Fuel injection nozzle for in-cylinder injection

Info

Publication number
JPS599163U
JPS599163U JP10316982U JP10316982U JPS599163U JP S599163 U JPS599163 U JP S599163U JP 10316982 U JP10316982 U JP 10316982U JP 10316982 U JP10316982 U JP 10316982U JP S599163 U JPS599163 U JP S599163U
Authority
JP
Japan
Prior art keywords
nozzle
nozzle body
fuel injection
needle valve
injection
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
Application number
JP10316982U
Other languages
Japanese (ja)
Inventor
丹下　昭二
今城　実
Original Assignee
日産自動車株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日産自動車株式会社 filed Critical 日産自動車株式会社
Priority to JP10316982U priority Critical patent/JPS599163U/en
Publication of JPS599163U publication Critical patent/JPS599163U/en
Pending legal-status Critical Current

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  • 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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の筒内噴射用燃料噴射ノズルを示す断面図
、第２図は第１図のノズルの先端部を示す断面図、第３
図は他の従来例を示す要部断面図、　−第４図は本考案
に係る筒内噴射用燃料噴射ノズルの実施例を示す要部の
断面図、第５図は第４図のＡ部の拡大図である。 ２０・・・ノズルボディ、２１・・・噴孔、２２・・・
ニードルバルブ、２６・・・テーバ状内周面、２８・・
・テーパ状の面、２９・・・スロットル部。FIG. 1 is a sectional view showing a conventional in-cylinder fuel injection nozzle, FIG. 2 is a sectional view showing the tip of the nozzle in FIG.
Figure 4 is a cross-sectional view of the main part showing another conventional example, - Figure 4 is a cross-sectional view of the main part showing an embodiment of the in-cylinder fuel injection nozzle according to the present invention, and Figure 5 is section A in Figure 4. It is an enlarged view of. 20... Nozzle body, 21... Nozzle hole, 22...
Needle valve, 26... Tapered inner peripheral surface, 28...
- Tapered surface, 29... Throttle part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 燃焼室内に突出する先端部に噴孔を有したノズルボディ
と、該ノズルボディのシート面にシート部がノズルボデ
ィの外方から着座して噴孔を閉塞可能なニードルバルブ
と、を備え、ニードルバルブの所定の初期リフト期間に
噴孔面積を最少に保つスロットル部を有する筒内噴射用
燃料噴射ノズルにおいて、前記スロットル部を形成する
、ノズルボディの噴孔内周一部と、ニードルバルブの外
−周一部との少なくとも一方を、ノズルボディ外方に向
けて大径となるテーパ状に形成したことを特徴とする筒
内噴射用燃料噴射ノズル。A needle valve comprising: a nozzle body having a nozzle hole at its tip protruding into a combustion chamber; and a needle valve whose seat portion is seated on the seat surface of the nozzle body from the outside of the nozzle body to close the nozzle hole. In a fuel injection nozzle for in-cylinder injection having a throttle part that keeps the nozzle hole area to a minimum during a predetermined initial lift period of the valve, a part of the inner periphery of the nozzle hole of the nozzle body, which forms the throttle part, and an outer part of the needle valve. 1. A fuel injection nozzle for in-cylinder injection, characterized in that at least one of the peripheral portions is tapered to have a larger diameter toward the outside of the nozzle body.
JP10316982U 1982-07-09 1982-07-09 Fuel injection nozzle for in-cylinder injection Pending JPS599163U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10316982U JPS599163U (en) 1982-07-09 1982-07-09 Fuel injection nozzle for in-cylinder injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10316982U JPS599163U (en) 1982-07-09 1982-07-09 Fuel injection nozzle for in-cylinder injection

Publications (1)

Publication Number Publication Date
JPS599163U true JPS599163U (en) 1984-01-20

Family

ID=30242840

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10316982U Pending JPS599163U (en) 1982-07-09 1982-07-09 Fuel injection nozzle for in-cylinder injection

Country Status (1)

Country Link
JP (1) JPS599163U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0499465U (en) * 1991-01-22 1992-08-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0499465U (en) * 1991-01-22 1992-08-27

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