JP5997116B2 - 燃料噴射弁 - Google Patents
燃料噴射弁 Download PDFInfo
- Publication number
- JP5997116B2 JP5997116B2 JP2013186921A JP2013186921A JP5997116B2 JP 5997116 B2 JP5997116 B2 JP 5997116B2 JP 2013186921 A JP2013186921 A JP 2013186921A JP 2013186921 A JP2013186921 A JP 2013186921A JP 5997116 B2 JP5997116 B2 JP 5997116B2
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- JP
- Japan
- Prior art keywords
- fuel
- injection
- hole
- valve
- communication hole
- 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.)
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Classifications
-
- 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
- F02M61/186—Multi-layered orifice plates
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0667—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature acting as a valve or having a short valve body attached thereto
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
さらに具体的には、本発明の燃料噴射弁は、
開閉弁方向に駆動される弁体と、
前記弁体が離接する弁座及び前記弁座の下流側に中心軸方向に貫通する貫通孔が形成された弁座部材と、
弁座に対して燃料の流れ方向下流側に形成され径方向の燃料流れを形成する燃料室と、
前記燃料室に開口する複数の噴射孔と、
前記燃料室の径方向中央部に開口し前記燃料室と前記燃料室の上流側とを連通する第1の連通孔、及び前記噴射孔の入口開口面の半径方向位置よりも外側で前記燃料室に開口し前記燃料室と前記燃料室の上流側とを連通する第2の連通孔が形成された中間プレートと、
中央部に形成された膨出部及び前記膨出部に形成された前記複数の噴射孔を有する噴射孔プレートと、を備え、
前記中間プレートと前記噴射孔プレートとは中心軸線方向に積層して前記弁座部材の先端側端面に固定され、
前記第1の連通孔は前記弁座部材の前記貫通孔に対して径方向内側に形成され、
前記第2の連通孔は、前記弁座部材の前記貫通孔に対して径方向内側かつ前記第1の連通孔に対して径方向外側に形成され、複数の噴射孔の入口開口面が配置された角度範囲に亘って円弧状に形成され、前記第2の連通孔の出口側開口面が前記第2の連通孔の入口側開口面に対して径方向外側に位置するように貫通方向が傾斜して形成される。
Claims (1)
- 開閉弁方向に駆動される弁体と、
前記弁体が離接する弁座及び前記弁座の下流側に中心軸方向に貫通する貫通孔が形成された弁座部材と、
弁座に対して燃料の流れ方向下流側に形成され径方向の燃料流れを形成する燃料室と、
前記燃料室に開口する複数の噴射孔と、
前記燃料室の径方向中央部に開口し前記燃料室と前記燃料室の上流側とを連通する第1の連通孔、及び前記噴射孔の入口開口面の半径方向位置よりも外側で前記燃料室に開口し前記燃料室と前記燃料室の上流側とを連通する第2の連通孔が形成された中間プレートと、
中央部に形成された膨出部及び前記膨出部に形成された前記複数の噴射孔を有する噴射孔プレートと、を備え、
前記中間プレートと前記噴射孔プレートとは中心軸線方向に積層して前記弁座部材の先端側端面に固定され、
前記第1の連通孔は前記弁座部材の前記貫通孔に対して径方向内側に形成され、
前記第2の連通孔は、前記弁座部材の前記貫通孔に対して径方向内側かつ前記第1の連通孔に対して径方向外側に形成され、複数の噴射孔の入口開口面が配置された角度範囲に亘って円弧状に形成され、前記第2の連通孔の出口側開口面が前記第2の連通孔の入口側開口面に対して径方向外側に位置するように貫通方向が傾斜して形成されたことを特徴とする燃料噴射弁。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013186921A JP5997116B2 (ja) | 2013-09-10 | 2013-09-10 | 燃料噴射弁 |
PCT/JP2014/068660 WO2015037324A1 (ja) | 2013-09-10 | 2014-07-14 | 燃料噴射弁 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2013186921A JP5997116B2 (ja) | 2013-09-10 | 2013-09-10 | 燃料噴射弁 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015055158A JP2015055158A (ja) | 2015-03-23 |
JP5997116B2 true JP5997116B2 (ja) | 2016-09-28 |
Family
ID=52665447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013186921A Active JP5997116B2 (ja) | 2013-09-10 | 2013-09-10 | 燃料噴射弁 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP5997116B2 (ja) |
WO (1) | WO2015037324A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6861297B2 (ja) * | 2017-11-22 | 2021-04-21 | 日立Astemo株式会社 | 燃料噴射装置 |
JP7040320B2 (ja) * | 2018-06-27 | 2022-03-23 | 株式会社デンソー | 燃料噴射弁 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0180664U (ja) * | 1987-11-17 | 1989-05-30 | ||
US6357677B1 (en) * | 1999-10-13 | 2002-03-19 | Siemens Automotive Corporation | Fuel injection valve with multiple nozzle plates |
JP3536857B2 (ja) * | 2003-08-29 | 2004-06-14 | 株式会社デンソー | 流体噴射ノズル |
JP2006242046A (ja) * | 2005-03-01 | 2006-09-14 | Hitachi Ltd | 燃料噴射弁 |
JP4782804B2 (ja) * | 2008-03-19 | 2011-09-28 | 日立オートモティブシステムズ株式会社 | 燃料噴射弁 |
-
2013
- 2013-09-10 JP JP2013186921A patent/JP5997116B2/ja active Active
-
2014
- 2014-07-14 WO PCT/JP2014/068660 patent/WO2015037324A1/ja active Application Filing
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Publication number | Publication date |
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WO2015037324A1 (ja) | 2015-03-19 |
JP2015055158A (ja) | 2015-03-23 |
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