JPS6049262U - Diesel engine fuel injection valve - Google Patents

Diesel engine fuel injection valve

Info

Publication number
JPS6049262U
JPS6049262U JP14153983U JP14153983U JPS6049262U JP S6049262 U JPS6049262 U JP S6049262U JP 14153983 U JP14153983 U JP 14153983U JP 14153983 U JP14153983 U JP 14153983U JP S6049262 U JPS6049262 U JP S6049262U
Authority
JP
Japan
Prior art keywords
fuel injection
diesel engine
injection valve
engine fuel
valve
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
JP14153983U
Other languages
Japanese (ja)
Inventor
幸雄 松井
光夫 内山
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 JP14153983U priority Critical patent/JPS6049262U/en
Priority to US06/637,728 priority patent/US4578164A/en
Priority to DE19843431079 priority patent/DE3431079A1/en
Publication of JPS6049262U publication Critical patent/JPS6049262U/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 the drawing]

第１図はサックレス型燃料噴射弁の従来例を示す断面図
、第２図は本考案の第１の実施例を示す断面図、第３図
は第２図の■矢視図、第４図は第２の実施例を示す断面
図、第５図は第３の実施例を示す断面図、第６図は従来
のサックレス型燃料噴射弁の噴射期間の特性を示す線図
、第７図及び第８図はそれぞれ参考例を示す断面図であ
る。 １・・・弁本体、２・・・シート面、３・・・噴孔、６
・・・針弁、１０・・・テーパ状拡開部、１１，１２・
・・アール状拡開部。Fig. 1 is a sectional view showing a conventional example of a suckless type fuel injection valve, Fig. 2 is a sectional view showing a first embodiment of the present invention, Fig. 3 is a view in the direction of the ■ arrow in Fig. 2, and Fig. 4 5 is a sectional view showing the second embodiment, FIG. 5 is a sectional view showing the third embodiment, FIG. 6 is a diagram showing the characteristics of the injection period of a conventional sackless type fuel injection valve, and FIGS. FIG. 8 is a sectional view showing a reference example. 1...Valve body, 2...Seat surface, 3...Nozzle hole, 6
... Needle valve, 10... Tapered expansion part, 11, 12.
・Rounded expansion part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 弁本体に形成されたシート面に着座し燃料油圧によって
リフトする針弁と、弁本体のシート面の位置に形成され
た噴孔とを有するディーゼル機関用燃料噴射弁において
、前記噴孔のシート面に開口する入口側開口部の縁部を
切除して拡開部を形成したことを特徴とするディーゼル
機関用燃料噴射弁。In a fuel injection valve for a diesel engine, the needle valve is seated on a seat surface formed in a valve body and is lifted by fuel oil pressure, and a nozzle hole is formed at a position on the seat surface of the valve body. 1. A fuel injection valve for a diesel engine, characterized in that an enlarged portion is formed by cutting off an edge of an inlet side opening that opens into the inlet.
JP14153983U 1983-08-24 1983-09-14 Diesel engine fuel injection valve Pending JPS6049262U (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP14153983U JPS6049262U (en) 1983-09-14 1983-09-14 Diesel engine fuel injection valve
US06/637,728 US4578164A (en) 1983-08-24 1984-08-06 Method of electrolytically finishing spray-hole of fuel injection nozzle
DE19843431079 DE3431079A1 (en) 1983-08-24 1984-08-23 METHOD FOR ELECTROPOLISHING THE SPRAY OPENINGS OF A FUEL INJECTION NOZZLE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14153983U JPS6049262U (en) 1983-09-14 1983-09-14 Diesel engine fuel injection valve

Publications (1)

Publication Number Publication Date
JPS6049262U true JPS6049262U (en) 1985-04-06

Family

ID=30316537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14153983U Pending JPS6049262U (en) 1983-08-24 1983-09-14 Diesel engine fuel injection valve

Country Status (1)

Country Link
JP (1) JPS6049262U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10331747A (en) * 1997-06-02 1998-12-15 Denso Corp Fuel injection nozzle and manufacture thereof
JPH1193806A (en) * 1997-07-11 1999-04-06 Robert Bosch Gmbh Fuel injection valve
JP2006522887A (en) * 2003-04-08 2006-10-05 ローベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Fuel injection valve for internal combustion engine
JP2010180784A (en) * 2009-02-05 2010-08-19 Denso Corp Fuel ejection nozzle
WO2014021467A1 (en) * 2012-08-03 2014-02-06 日本碍子株式会社 Method for manufacturing spray nozzle
WO2018135263A1 (en) * 2017-01-23 2018-07-26 日立オートモティブシステムズ株式会社 Fuel injection valve

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10331747A (en) * 1997-06-02 1998-12-15 Denso Corp Fuel injection nozzle and manufacture thereof
JPH1193806A (en) * 1997-07-11 1999-04-06 Robert Bosch Gmbh Fuel injection valve
JP2006522887A (en) * 2003-04-08 2006-10-05 ローベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Fuel injection valve for internal combustion engine
JP2010180784A (en) * 2009-02-05 2010-08-19 Denso Corp Fuel ejection nozzle
WO2014021467A1 (en) * 2012-08-03 2014-02-06 日本碍子株式会社 Method for manufacturing spray nozzle
WO2018135263A1 (en) * 2017-01-23 2018-07-26 日立オートモティブシステムズ株式会社 Fuel injection valve
JP2018119401A (en) * 2017-01-23 2018-08-02 日立オートモティブシステムズ株式会社 Fuel injection valve

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