JP4225297B2 - 内燃機関用燃料噴射弁 - Google Patents
内燃機関用燃料噴射弁 Download PDFInfo
- Publication number
- JP4225297B2 JP4225297B2 JP2005189646A JP2005189646A JP4225297B2 JP 4225297 B2 JP4225297 B2 JP 4225297B2 JP 2005189646 A JP2005189646 A JP 2005189646A JP 2005189646 A JP2005189646 A JP 2005189646A JP 4225297 B2 JP4225297 B2 JP 4225297B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- nozzle hole
- internal combustion
- combustion engine
- wall
- 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
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
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- 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
- F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
-
- 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
- F02M61/166—Selection of particular materials
-
- 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
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/90—Selection of particular materials
- F02M2200/9038—Coatings
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S239/00—Fluid sprinkling, spraying, and diffusing
- Y10S239/19—Nozzle materials
Landscapes
- 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)
Description
図1、2、3を参照して、参考技術による噴霧の微粒化の原理を説明する。
図4を参照して、本発明による噴霧の微粒化の原理を説明する。図4(A)は噴孔3の出口付近の斜視図であり、周囲は省略してある。図4(B)は噴孔3の内壁付近の一部分を拡大した横断面図である。
2 バルブボディー
3 噴孔(の内壁)
3A 噴孔内壁の平面部
3B 噴孔内壁の溝部
4 燃料液膜
4A 噴孔内壁平面部上の燃料液膜
4B 噴孔内壁溝部の燃料液糸
10 親油(PES)/撥油(FEP)複合被膜
12 親油性のPES(ポリエーテルサルフォン)
14 撥油性のFEP(4弗化エチレン・6弗化プロピレン共重合体)
Claims (2)
- 内燃機関の燃焼室もしくは吸気ポートへ燃料を噴射する噴孔の内壁を、燃料噴流方向に延在する多数の溝と、これら溝間の平面部とで構成し、上記溝の内壁は撥油被膜で被覆し、上記平面部は親油被膜で被覆したことを特徴とする内燃機関用燃料噴射弁。
- 請求項1において、上記撥油被膜がFEPから成り、上記親油被膜がPESから成ることを特徴とする内燃機関用燃料噴射弁。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005189646A JP4225297B2 (ja) | 2005-06-29 | 2005-06-29 | 内燃機関用燃料噴射弁 |
US11/476,112 US7651038B2 (en) | 2005-06-29 | 2006-06-28 | Fuel injection valve for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005189646A JP4225297B2 (ja) | 2005-06-29 | 2005-06-29 | 内燃機関用燃料噴射弁 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007009765A JP2007009765A (ja) | 2007-01-18 |
JP4225297B2 true JP4225297B2 (ja) | 2009-02-18 |
Family
ID=37660810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005189646A Expired - Fee Related JP4225297B2 (ja) | 2005-06-29 | 2005-06-29 | 内燃機関用燃料噴射弁 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7651038B2 (ja) |
JP (1) | JP4225297B2 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8361067B2 (en) | 2002-09-30 | 2013-01-29 | Relievant Medsystems, Inc. | Methods of therapeutically heating a vertebral body to treat back pain |
US7455045B2 (en) * | 2006-08-01 | 2008-11-25 | Aisan Kogyo Kabushiki Kaisha | Fluid flow control device for internal combustion engine |
JP2008038632A (ja) * | 2006-08-01 | 2008-02-21 | Aisan Ind Co Ltd | 燃料噴射弁 |
DE102008055136A1 (de) * | 2008-12-23 | 2010-07-01 | Robert Bosch Gmbh | Verfahren und System zur Einspritzung von Kraftstoff in Brennkraftmaschinen |
CN102472173B (zh) * | 2010-01-15 | 2014-08-13 | 丰田自动车株式会社 | 气门作用角可变系统 |
US20130206107A1 (en) * | 2010-07-02 | 2013-08-15 | American Performance Technologies, Llc | Carburetor and methods therefor |
JP5295337B2 (ja) * | 2011-10-19 | 2013-09-18 | 三菱電機株式会社 | 流体噴射弁による噴霧生成方法、流体噴射弁、及び噴霧生成装置 |
US20140097275A1 (en) * | 2012-10-10 | 2014-04-10 | Caterpillar Inc. | Fuel injector with nozzle passages having electroless nickel coating |
EP2811148B1 (en) * | 2013-06-04 | 2016-03-23 | Continental Automotive GmbH | Fluid injector for a combustion engine |
JP5858007B2 (ja) * | 2013-07-01 | 2016-02-10 | トヨタ自動車株式会社 | バルブシート用の肉盛方法及びシリンダヘッドの製造方法 |
JP6292188B2 (ja) * | 2015-04-09 | 2018-03-14 | 株式会社デンソー | 燃料噴射装置 |
US10718304B2 (en) * | 2016-01-18 | 2020-07-21 | Hitachi, Ltd. | Fuel injection valve |
JP6765318B2 (ja) * | 2017-02-24 | 2020-10-07 | 株式会社日立製作所 | 燃料噴射装置 |
JP2019100208A (ja) * | 2017-11-29 | 2019-06-24 | 株式会社デンソー | 燃料噴射弁 |
JP2024093965A (ja) * | 2022-12-27 | 2024-07-09 | 日立Astemo株式会社 | 燃料噴射装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5061513A (en) * | 1990-03-30 | 1991-10-29 | Flynn Paul L | Process for depositing hard coating in a nozzle orifice |
US5478651A (en) * | 1994-10-31 | 1995-12-26 | E. I. Du Pont De Nemours And Company | Process for making fluoropolymer finish composition |
JP3156554B2 (ja) | 1995-07-24 | 2001-04-16 | トヨタ自動車株式会社 | 燃料噴射弁 |
JP3156610B2 (ja) | 1996-11-29 | 2001-04-16 | トヨタ自動車株式会社 | 筒内噴射式内燃機関の燃料噴射弁 |
JP3081803B2 (ja) * | 1997-01-13 | 2000-08-28 | 川鉄鋼板株式会社 | フッ素樹脂フィルム積層金属帯およびその製造方法 |
JP3605512B2 (ja) | 1998-05-29 | 2004-12-22 | 本田技研工業株式会社 | 撥水撥油性皮膜を備えた内燃機関用燃焼室構成部材およびその皮膜の形成方法 |
JP2003227445A (ja) | 2002-02-01 | 2003-08-15 | Hitachi Ltd | 電磁燃料噴射弁 |
JP2004211851A (ja) | 2003-01-07 | 2004-07-29 | Minebea Co Ltd | 撥油膜を形成した動圧軸受装置およびこれを搭載したハードディスクドライブ用のスピンドルモータ |
JP3944119B2 (ja) | 2003-05-22 | 2007-07-11 | 三菱電機株式会社 | 燃料噴射弁 |
JP2006321182A (ja) * | 2005-05-20 | 2006-11-30 | Toyota Motor Corp | 撥油被膜を備えた部品およびその製造方法 |
-
2005
- 2005-06-29 JP JP2005189646A patent/JP4225297B2/ja not_active Expired - Fee Related
-
2006
- 2006-06-28 US US11/476,112 patent/US7651038B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20070012803A1 (en) | 2007-01-18 |
JP2007009765A (ja) | 2007-01-18 |
US7651038B2 (en) | 2010-01-26 |
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