JPS582366U - fuel injection nozzle - Google Patents

fuel injection nozzle

Info

Publication number
JPS582366U
JPS582366U JP9509781U JP9509781U JPS582366U JP S582366 U JPS582366 U JP S582366U JP 9509781 U JP9509781 U JP 9509781U JP 9509781 U JP9509781 U JP 9509781U JP S582366 U JPS582366 U JP S582366U
Authority
JP
Japan
Prior art keywords
injection nozzle
fuel injection
pressure
needle
pressure 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.)
Granted
Application number
JP9509781U
Other languages
Japanese (ja)
Other versions
JPH025090Y2 (en
Inventor
敏夫 中平
大岡　信一
Original Assignee
いすゞ自動車株式会社
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 いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Priority to JP9509781U priority Critical patent/JPS582366U/en
Publication of JPS582366U publication Critical patent/JPS582366U/en
Application granted granted Critical
Publication of JPH025090Y2 publication Critical patent/JPH025090Y2/ja
Granted legal-status Critical Current

Links

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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 the drawing]

第１図ないし第３図は本考案の実施例１における燃料噴
射ノズル要部の縦断面図、第４図は本考案の燃料噴射ノ
ズルの機能を説明するための噴射圧と時間との関係を示
す線図、第５図は本考案の実施例２における燃料噴射ノ
ズル要部の縦断面図である。 ２・・・ニードル、４・・・弁ばね、９・・・高圧燃料
逃し溝、１０・・・高圧燃料逃し部、１１・・・高圧燃
料逃しばね、Ｆ・・・燃料。1 to 3 are longitudinal sectional views of the essential parts of the fuel injection nozzle in Example 1 of the present invention, and FIG. 4 shows the relationship between injection pressure and time to explain the function of the fuel injection nozzle of the present invention. The diagram shown in FIG. 5 is a longitudinal sectional view of the main part of the fuel injection nozzle in Example 2 of the present invention. 2... Needle, 4... Valve spring, 9... High pressure fuel relief groove, 10... High pressure fuel relief portion, 11... High pressure fuel relief spring, F... Fuel.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 開弁圧設定用の弁ばねで押圧されているニードルを有す
る燃料噴射ノズルにおいて、該ニードルの胴部に高圧燃
料逃し溝を形成すると共に、該弁ばねの開弁設定圧以上
の所定の高燃料圧の時にのみ該高圧燃料逃し〜溝を洩油
路に連通させうるように、該ニードルを該弁ばねを介し
て更に押圧する高圧燃料逃しばねを配設したことを特徴
とする燃料噴射ノズル。In a fuel injection nozzle having a needle pressed by a valve spring for setting the valve opening pressure, a high-pressure fuel relief groove is formed in the body of the needle, and a predetermined high-pressure fuel injection nozzle that is higher than the valve opening setting pressure of the valve spring is formed. A fuel injection nozzle comprising a high pressure fuel relief spring that further presses the needle via the valve spring so that the high pressure fuel relief groove can communicate with the leakage path only when the pressure is high.
JP9509781U 1981-06-29 1981-06-29 fuel injection nozzle Granted JPS582366U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9509781U JPS582366U (en) 1981-06-29 1981-06-29 fuel injection nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9509781U JPS582366U (en) 1981-06-29 1981-06-29 fuel injection nozzle

Publications (2)

Publication Number Publication Date
JPS582366U true JPS582366U (en) 1983-01-08
JPH025090Y2 JPH025090Y2 (en) 1990-02-07

Family

ID=29890016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9509781U Granted JPS582366U (en) 1981-06-29 1981-06-29 fuel injection nozzle

Country Status (1)

Country Link
JP (1) JPS582366U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61107971U (en) * 1984-12-20 1986-07-09
JP2009275697A (en) * 2008-04-16 2009-11-26 Denso Corp Metering valve for fuel injection system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5063327A (en) * 1973-10-06 1975-05-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5063327A (en) * 1973-10-06 1975-05-29

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61107971U (en) * 1984-12-20 1986-07-09
JP2009275697A (en) * 2008-04-16 2009-11-26 Denso Corp Metering valve for fuel injection system

Also Published As

Publication number Publication date
JPH025090Y2 (en) 1990-02-07

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