JP4021405B2 - 燃料噴射弁 - Google Patents
燃料噴射弁 Download PDFInfo
- Publication number
- JP4021405B2 JP4021405B2 JP2003411963A JP2003411963A JP4021405B2 JP 4021405 B2 JP4021405 B2 JP 4021405B2 JP 2003411963 A JP2003411963 A JP 2003411963A JP 2003411963 A JP2003411963 A JP 2003411963A JP 4021405 B2 JP4021405 B2 JP 4021405B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- protector member
- protector
- valve body
- flow passage
- 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.)
- Expired - Fee Related
Links
Images
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- Fuel-Injection Apparatus (AREA)
Description
以下、本発明を具現化した一実施形態について図面を参照して説明する。
2 燃料流通路
20 弁座面
21 バルブボディ
21a 係止溝部
22 弁体
23 ノズルプレート
23a ノズル孔
24 プロテクタ
26 樹脂プロテクタ部材
26d リング状部分
27 金属プロテクタ部材
27a 固定リング部
27b プロテクト部
27d 開口部
Claims (3)
- 内部に燃料流通路を有し、この燃料流通路の壁面に弁座面が形成されたバルブボディと、前記燃料流通路内に配置され、前記弁座面に密着する閉弁位置と弁座面より離間する開弁位置との間で移動する弁体と、前記バルブボディの前記燃料流通路が開口する先端面に固定され、前記燃料流通路に連通する複数のノズル孔を有するノズルプレートと、前記バルブボディの外周に取り付けられ、前記ノズルプレートの外周を囲むように配置されるプロテクタと、を備えた燃料噴射弁において、
前記プロテクタは、前記バルブボディの外周に圧入された樹脂製の樹脂プロテクタ部材と、この樹脂プロテクタ部材の外周に圧入され、且つ、前記ノズルプレートの外周を囲むプロテクト部を有する金属製の金属プロテクタ部材とから構成され、この金属プロテクタ部材のプロテクト部にリング状の固定リング部が設けられ、この固定リング部が前記樹脂プロテクタ部材のリング状部分を囲んだことを特徴とする燃料噴射弁。 - 前記金属プロテクタ部材のプロテクト部は、前記複数のノズル孔を露出する開口部を有し、この開口部が前記複数のノズル孔の全てを露出する大きさに設定されたことを特徴とする請求項1に記載の燃料噴射弁。
- 前記金属プロテクタ部材の開口部は、前記複数のノズル孔の燃料噴射方向に向かうに従って徐々に拡径する形状に形成されたことを特徴とする請求項2に記載の燃料噴射弁。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003411963A JP4021405B2 (ja) | 2003-12-10 | 2003-12-10 | 燃料噴射弁 |
CNB2004100833238A CN100359157C (zh) | 2003-12-10 | 2004-09-29 | 燃料喷射阀 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003411963A JP4021405B2 (ja) | 2003-12-10 | 2003-12-10 | 燃料噴射弁 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005171850A JP2005171850A (ja) | 2005-06-30 |
JP4021405B2 true JP4021405B2 (ja) | 2007-12-12 |
Family
ID=34732550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003411963A Expired - Fee Related JP4021405B2 (ja) | 2003-12-10 | 2003-12-10 | 燃料噴射弁 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP4021405B2 (ja) |
CN (1) | CN100359157C (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101016874B (zh) * | 2007-03-13 | 2011-08-03 | 中国计量学院 | 一种用于机动车的节油喷射装置 |
JP4881883B2 (ja) * | 2008-01-25 | 2012-02-22 | 日立オートモティブシステムズ株式会社 | 燃料噴射弁 |
JP5321473B2 (ja) * | 2010-01-13 | 2013-10-23 | 株式会社デンソー | 燃料噴射弁 |
CN105579699B (zh) * | 2013-09-26 | 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 |
JP6311472B2 (ja) * | 2014-06-16 | 2018-04-18 | 株式会社デンソー | 燃料噴射弁 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3512807B2 (ja) * | 1993-12-21 | 2004-03-31 | 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 | 霧化シーブおよび霧化シーブを備えた燃料噴射弁 |
DE19602907A1 (de) * | 1996-01-27 | 1997-07-31 | Bosch Gmbh Robert | Befestigungsanordnung einer Kraftstoffleitung auf einem Stutzen |
JP2000234578A (ja) * | 1999-02-16 | 2000-08-29 | Denso Corp | 燃料噴射弁の噴孔氷結防止装置 |
JP2003214288A (ja) * | 2002-01-18 | 2003-07-30 | Denso Corp | 燃料噴射弁 |
-
2003
- 2003-12-10 JP JP2003411963A patent/JP4021405B2/ja not_active Expired - Fee Related
-
2004
- 2004-09-29 CN CNB2004100833238A patent/CN100359157C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1626789A (zh) | 2005-06-15 |
JP2005171850A (ja) | 2005-06-30 |
CN100359157C (zh) | 2008-01-02 |
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