JP2010014087A - 電磁式燃料噴射弁及びその製造方法 - Google Patents
電磁式燃料噴射弁及びその製造方法 Download PDFInfo
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- JP2010014087A JP2010014087A JP2008177056A JP2008177056A JP2010014087A JP 2010014087 A JP2010014087 A JP 2010014087A JP 2008177056 A JP2008177056 A JP 2008177056A JP 2008177056 A JP2008177056 A JP 2008177056A JP 2010014087 A JP2010014087 A JP 2010014087A
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- Prior art keywords
- cylindrical body
- valve
- nonmagnetic
- magnetic
- fixed core
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1853—Orifice plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49009—Dynamoelectric machine
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
【解決手段】固定コア5の前端部には,非磁性円筒体4内に向かって突出する吸引筒部5aを突設して,この吸引筒部5aの前端と可動コア17の後端とを非磁性円筒体4内で相互に対向させた電磁式燃料噴射弁において,吸引筒部5aの外周面と非磁性円筒体4の内周面との間に,非磁性円筒体4及び固定コア5間の液密検査に使用する圧力流体の流入を許容する環状間隙Gを設けた。
【選択図】 図2
Description
G・・・・・環状間隙
J・・・・・治具
1・・・・・弁ハウジング
2・・・・・弁座部材
3・・・・・磁性円筒体
4・・・・・非磁性円筒体
4a・・・・テーパ面
5・・・・・固定コア
5a・・・・吸引筒部
8・・・・・弁座
15・・・・弁組立体
16・・・・弁体
17・・・・可動コア
46・・・・大径軸部
47・・・・小径軸部
Claims (3)
- 弁座(8)を前端部に有する筒状の弁座部材(2)と,この弁座部材(2)の後端部に同軸状に結合される磁性円筒体(3)と,この磁性円筒体(3)の後端に同軸状且つ液密に溶接される非磁性円筒体(4)と,非磁性円筒体(4)の後端に同軸状且つ液密に溶接される中空円筒状の固定コア(5)とで弁ハウジング(1)を構成し,この弁ハウジング(1)内に,前記弁座(8)に着座し得る弁体(16)と,この弁体(16)の後端に結合される可動コア(17)とで構成される弁組立体(15)を収容し,固定コア(5)の前端部には,非磁性円筒体(4)内に向かって突出する吸引筒部(5a)を突設して,この吸引筒部(5a)の前端と可動コア(17)の後端とを非磁性円筒体(4)内で相互に対向させた電磁式燃料噴射弁において,
前記吸引筒部(5a)の外周面と非磁性円筒体(4)の内周面との間に,非磁性円筒体(4)及び固定コア(5)間の液密検査に使用する圧力流体の流入を許容する環状間隙Gを設けたことを特徴とする電磁式燃料噴射弁。 - 請求項1記載の電磁式燃料噴射弁における磁性円筒体(3),非磁性円筒体(4)及び固定コア(5)の三者を溶接する際には,磁性円筒体(3)及び非磁性円筒体(4)の両内周面に密合し得る大径軸部(46)及び,固定コア(5)の内周面に密合し得る小径軸部(47)を相互に同軸状に結合してなる治具(J)を用意し,この治具(J)の大径軸部(46)の外周面に磁性円筒体(3)及び非磁性円筒体(4)の両内周面を密合すると共に,小径軸部(47)の外周面に固定コア(5)の内周面を密合した状態で,磁性円筒体(3),非磁性円筒体(4)及び固定コア(5)の三者の各軸方向突き当て部を溶接することを特徴とする,電磁式燃料噴射弁の製造方法。
- 請求項2記載の電磁式燃料噴射弁の製造方法において,
非磁性円筒体(4)の軸方向両端の内周縁部には,前記大径軸部(46)の非磁性円筒体(4)内への密合を誘導し得るテーパ面(4a,4a)を形成しておくことを特徴とする,電磁式燃料噴射弁の製造方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008177056A JP5072745B2 (ja) | 2008-07-07 | 2008-07-07 | 電磁式燃料噴射弁及びその製造方法 |
US12/488,222 US8246005B2 (en) | 2008-07-07 | 2009-06-19 | Electromagnetic fuel injection valve and method of manufacturing the same |
CN200910151051.3A CN101624954B (zh) | 2008-07-07 | 2009-07-07 | 电磁式燃料喷射阀及其制造方法 |
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JP2008177056A JP5072745B2 (ja) | 2008-07-07 | 2008-07-07 | 電磁式燃料噴射弁及びその製造方法 |
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JP2010014087A true JP2010014087A (ja) | 2010-01-21 |
JP5072745B2 JP5072745B2 (ja) | 2012-11-14 |
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US (1) | US8246005B2 (ja) |
JP (1) | JP5072745B2 (ja) |
CN (1) | CN101624954B (ja) |
Cited By (1)
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JP2012097721A (ja) * | 2010-11-05 | 2012-05-24 | Kumamoto Univ | インジェクションノズル |
Families Citing this family (5)
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CN103184959B (zh) * | 2011-12-30 | 2017-01-18 | 联合汽车电子有限公司 | 衔铁‑针阀组件、其成型装配方法及装配工具 |
DE102012210956A1 (de) * | 2012-06-27 | 2014-01-02 | Robert Bosch Gmbh | Verfahren zur Herstellung eines Gehäuses, insbesondere eines Ventilgehäuses |
CN105658950B (zh) * | 2013-11-11 | 2018-11-06 | 恩普乐斯股份有限公司 | 燃料喷射装置用喷嘴板的安装构造 |
WO2017168975A1 (ja) * | 2016-03-28 | 2017-10-05 | 日立オートモティブシステムズ株式会社 | 流量制御装置 |
WO2019202829A1 (ja) * | 2018-04-20 | 2019-10-24 | 日立オートモティブシステムズ株式会社 | 流量制御装置の部品及び燃料噴射弁 |
Citations (4)
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JP2003511604A (ja) * | 1999-10-07 | 2003-03-25 | 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 | 燃料噴射弁 |
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DE4008675A1 (de) * | 1990-03-17 | 1991-09-19 | Bosch Gmbh Robert | Elektromagnetisch betaetigbares ventil |
DE4113682A1 (de) * | 1991-04-26 | 1992-10-29 | Bosch Gmbh Robert | Einspritzventil |
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JP2006118415A (ja) * | 2004-10-21 | 2006-05-11 | Keihin Corp | 電磁式燃料噴射弁の製造方法 |
CN101739084B (zh) * | 2008-11-25 | 2012-07-18 | 鸿富锦精密工业(深圳)有限公司 | 电子装置 |
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Patent Citations (5)
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CN101624954A (zh) | 2010-01-13 |
US20100001214A1 (en) | 2010-01-07 |
JP5072745B2 (ja) | 2012-11-14 |
US8246005B2 (en) | 2012-08-21 |
CN101624954B (zh) | 2012-07-04 |
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