JP2022146786A - 電磁式燃料噴射弁 - Google Patents
電磁式燃料噴射弁 Download PDFInfo
- Publication number
- JP2022146786A JP2022146786A JP2021047944A JP2021047944A JP2022146786A JP 2022146786 A JP2022146786 A JP 2022146786A JP 2021047944 A JP2021047944 A JP 2021047944A JP 2021047944 A JP2021047944 A JP 2021047944A JP 2022146786 A JP2022146786 A JP 2022146786A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- movable core
- core
- side stopper
- fuel injection
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims description 61
- 238000002347 injection Methods 0.000 title claims description 34
- 239000007924 injection Substances 0.000 title claims description 34
- 238000007747 plating Methods 0.000 claims description 3
- 239000000295 fuel oil Substances 0.000 abstract description 9
- 230000004043 responsiveness Effects 0.000 abstract description 8
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 description 14
- 238000002485 combustion reaction Methods 0.000 description 10
- 230000005389 magnetism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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
- 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
-
- 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
- F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
- F02M51/0642—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto
- F02M51/0653—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto the valve being an elongated body, e.g. a needle valve
- F02M51/0657—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto the valve being an elongated body, e.g. a needle valve the body being hollow and its interior communicating with the fuel flow
-
- 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
-
- 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
- F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
- F02M51/066—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
-
- 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
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
- F02M63/0075—Stop members in valves, e.g. plates or disks limiting the movement of armature, valve or spring
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
9・・・・弁ハウジング
14・・・固定コア
14a・・吸引面
27・・・弁座
32・・・コイル
40・・・弁体
41・・・可動コア
41a・・被吸引面
42・・・弁部
43・・・ロッド
48・・・開弁側ストッパ
49・・・閉弁側ストッパ
54・・・弁ばね
55・・・補助ばね
60・・・環状突起(環状リブ)
61・・・テーパ面
62・・・凹部
63・・・平坦面
64・・・メッキ層
Claims (3)
- 一端部に弁座(27)を有する弁ハウジング(9)と,該弁ハウジング(9)の他端に連設される中空の固定コア(14)と,該固定コア(14)の外周に配設されるコイル(32)と,前記弁座(27)と協働する弁部(42)にロッド(43)が連設されてなる弁体(40)と,前記弁ハウジング(9)内で前記固定コア(14)の吸引面(14a)に被吸引面(41a)を対向させながら前記ロッド(43)の外周に嵌装される可動コア(41)と,前記ロッド(43)に固定され,前記コイル(32)の通電による前記固定コア(14)の前記可動コアに対する吸引時に該可動コア(41)に押動されて前記弁体(40)を開弁作動させる開弁側ストッパ(48)と,該開弁側ストッパ(48)よりも前記弁座(27)側で前記ロッド(43)に固定される閉弁側ストッパ(49)と,前記弁体(40)を閉弁方向に付勢する弁ばね(54)と,前記コイル(32)の非通電時に前記可動コア(41)を前記開弁側ストッパ(48)から離反させて前記閉弁側ストッパ(49)に当接させるようにばね力を発揮する補助ばね(55)とを備え,前記固定コア(14)の吸引面(14a)には該固定コア(14)と同心の環状突起(60)が形成される一方,前記可動コア(41)の被吸引面(41a)には,該可動コア(41)の半径方向外方に向かって下るように傾斜し且つ該可動コア(41)と同心であって,前記固定コア(14)の前記可動コア(41)に対する吸引時に前記環状突起(60)に当接するテーパ面(61)が形成される電磁式燃料噴射弁において,
前記被吸引面(41a)には,前記テーパ面(61)を前記可動コア(41)の周方向に沿って複数部分に分割する複数の凹部(62)が設けられることを特徴とする電磁式燃料噴射弁。 - 請求項1に記載の電磁式燃料噴射弁において,
前記テーパ面(61)を前記可動コアの周方向に沿って等間隔に並ぶ3部分に分割するように,前記凹部(62)が3つに設定されることを特徴とする電磁式燃料噴射弁。 - 請求項1又は2に記載の電磁式燃料噴射弁において,
前記可動コア(41)の被吸引面(41a)には,前記テーパ面(61)に囲繞されて前記開弁側ストッパ(48)に当接可能な平坦面(63)が設けられ,該平坦面(63)及び前記テーパ面(61)が,前記可動コア(41)よりも硬質のメッキ層(64)で被覆されること特徴とする電磁式燃料噴射弁。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021047944A JP7482073B2 (ja) | 2021-03-22 | 2021-03-22 | 電磁式燃料噴射弁 |
US17/545,328 US11486343B2 (en) | 2021-03-22 | 2021-12-08 | Electromagnetic fuel injection valve |
CN202210163457.9A CN115111096B (zh) | 2021-03-22 | 2022-02-22 | 电磁式燃料喷射阀 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021047944A JP7482073B2 (ja) | 2021-03-22 | 2021-03-22 | 電磁式燃料噴射弁 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022146786A true JP2022146786A (ja) | 2022-10-05 |
JP7482073B2 JP7482073B2 (ja) | 2024-05-13 |
Family
ID=83285481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021047944A Active JP7482073B2 (ja) | 2021-03-22 | 2021-03-22 | 電磁式燃料噴射弁 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11486343B2 (ja) |
JP (1) | JP7482073B2 (ja) |
CN (1) | CN115111096B (ja) |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10252612A (ja) * | 1997-03-07 | 1998-09-22 | Zexel Corp | 燃料噴射ノズル |
JP3819907B2 (ja) * | 2004-02-27 | 2006-09-13 | 株式会社ケーヒン | 電磁式燃料噴射弁およびその製造方法 |
JP3819906B2 (ja) * | 2004-02-27 | 2006-09-13 | 株式会社ケーヒン | 電磁式燃料噴射弁およびその製造方法 |
JP2007285124A (ja) * | 2006-04-12 | 2007-11-01 | Mitsubishi Electric Corp | 燃料噴射弁 |
JP5048617B2 (ja) | 2008-09-17 | 2012-10-17 | 日立オートモティブシステムズ株式会社 | 内燃機関用の燃料噴射弁 |
JP5363228B2 (ja) * | 2009-07-27 | 2013-12-11 | 株式会社ケーヒン | 電磁式燃料噴射弁 |
JP2011047341A (ja) * | 2009-08-28 | 2011-03-10 | Nissan Motor Co Ltd | 内燃機関 |
JP5862941B2 (ja) | 2011-11-08 | 2016-02-16 | 株式会社デンソー | 燃料噴射弁 |
JP5822269B2 (ja) * | 2011-11-11 | 2015-11-24 | 株式会社ケーヒン | 電磁式燃料噴射弁 |
JP5939667B2 (ja) * | 2012-02-24 | 2016-06-22 | 株式会社ケーヒン | 電磁式燃料噴射弁 |
US9644587B2 (en) * | 2012-06-08 | 2017-05-09 | Honda Motor Co., Ltd. | Fuel injection device |
JP6186130B2 (ja) * | 2013-02-04 | 2017-08-23 | 日立オートモティブシステムズ株式会社 | 燃料噴射弁及び燃料噴射弁の製造方法 |
JP6463638B2 (ja) * | 2015-01-20 | 2019-02-06 | 株式会社Soken | 燃料噴射弁の制御装置 |
JP6175475B2 (ja) * | 2015-11-20 | 2017-08-02 | 株式会社ケーヒン | 電磁式燃料噴射弁 |
JP6692446B2 (ja) | 2016-11-07 | 2020-05-13 | 三菱電機株式会社 | 燃料噴射弁 |
JP6788085B1 (ja) | 2019-09-20 | 2020-11-18 | 株式会社ケーヒン | 電磁式燃料噴射弁 |
-
2021
- 2021-03-22 JP JP2021047944A patent/JP7482073B2/ja active Active
- 2021-12-08 US US17/545,328 patent/US11486343B2/en active Active
-
2022
- 2022-02-22 CN CN202210163457.9A patent/CN115111096B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN115111096B (zh) | 2023-12-01 |
JP7482073B2 (ja) | 2024-05-13 |
US20220298996A1 (en) | 2022-09-22 |
US11486343B2 (en) | 2022-11-01 |
CN115111096A (zh) | 2022-09-27 |
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