JP2006509140A - 燃料噴射弁 - Google Patents
燃料噴射弁 Download PDFInfo
- Publication number
- JP2006509140A JP2006509140A JP2004555983A JP2004555983A JP2006509140A JP 2006509140 A JP2006509140 A JP 2006509140A JP 2004555983 A JP2004555983 A JP 2004555983A JP 2004555983 A JP2004555983 A JP 2004555983A JP 2006509140 A JP2006509140 A JP 2006509140A
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- injection valve
- mover
- valve
- coating layer
- 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.)
- Pending
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
- F02M61/166—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
- 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
-
- 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
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49231—I.C. [internal combustion] engine making
-
- 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
- Y10T29/49401—Fluid pattern dispersing device making, e.g., ink jet
-
- 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
- Y10T29/49405—Valve or choke making
-
- 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
- Y10T29/49405—Valve or choke making
- Y10T29/49412—Valve or choke making with assembly, disassembly or composite article making
- Y10T29/49425—Valve or choke making with assembly, disassembly or composite article making including metallurgical bonding
-
- 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
- Y10T29/49405—Valve or choke making
- Y10T29/49426—Valve or choke making including metal shaping and diverse operation
-
- 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
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49982—Coating
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
請求項1の特徴部に記載のように構成された本発明による燃料噴射弁は、公知のものに比べて次のような利点を有している。すなわち本発明による燃料噴射弁では、可動子に被着された被覆層の表面構造の構成によって、一方では可動子当接面が効果的に保護され、かつ他方では液体による緩衝力が著しく減じられ、これによって燃料噴射弁を迅速に開放することができ、その結果正確な調量時間及び調量量並びにより高い耐久強度が得られる。
次に図面を参照しながら本発明の1実施例を説明する。
図2Aは、本発明による燃料噴射弁の新たに被覆された可動子の1実施例を、断面して示す拡大図であり、
図2Bは、長い慣らし運転の後における、図2Aに示された可動子の実施例を、拡大して概略的に示す図である。
図2A及び図2Bを用いて本発明による燃料噴射弁の可動子の1実施例を詳説する前に、本発明の理解を良好にするためにまず初めに、図1を参照しながら、公知の燃料噴射弁の主要な構成部材について簡単に説明する。
4は、弁座体5に配置された弁座面6と共働してシール座を形成している。燃料噴射弁1は図示の実施例では、内方に向かって開放する燃料噴射弁1であり、噴射開口7を有している。ノズル体2はシール部材8によってマグネットコイル10の外極9に対してシールされている。マグネットコイル10はコイルハウジング11内にカプセル化されて収容されていて、コイル保持体12に巻き付けられており、このコイル保持体12はマグネットコイル10の内極13に接触している。内極13と外極9とは狭窄部26によって互いに隔てられていて、かつ非強磁性の結合部材29によって互いに結合されている。マグネットコイル10は導体10を介して、電気的な差込み接点17を介して供給可能な電流によって励磁される。差込み接点17はプラスチック周壁18によって取り囲まれていて、このプラスチック周壁18は例えば内極13に射出成形されている。
Claims (6)
- 内燃機関の燃料噴射装置用の燃料噴射弁(1)であって、マグネットコイル(10)と、戻しばね(23)によって閉鎖方向に負荷される可動子(20)と、可動子(20)に摩擦力結合式に結合されている弁ニードル(3)とが設けられており、該弁ニードル(3)に、弁座面(6)と一緒にシール座を形成する弁閉鎖体(4)が形成されており、可動子(20)が可動子当接面(38)で、マグネットコイル(10)の内極(13)のストッパ面(39)に当接し、かつ可動子当接面(38)及びストッパ面(39)又はそのいずれか一方が被覆層(40)を備えている形式のものにおいて、
被覆層(40)が、凸設領域(42)と凹設領域(43)とを備えた表面構造(41)を有していることを特徴とする燃料噴射弁。 - 凸設領域(42)が半球状に形成されている、請求項1記載の燃料噴射弁。
- 凸設領域(42)と凹設領域(43)との間における高低差が、負荷によって生じる凸設領域(42)の摩耗よりも大きく設定されている、請求項1又は2記載の燃料噴射弁。
- 高低差が5μm〜10μmの間である、請求項3記載の燃料噴射弁。
- 被覆層(40)がクロムから成っている、請求項1から4までのいずれか1項記載の燃料噴射弁。
- 被覆層(40)が複数のクロム層から構成されている、請求項5記載の燃料噴射弁。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10256662A DE10256662A1 (de) | 2002-12-04 | 2002-12-04 | Brennstoffeinspritzventil |
PCT/DE2003/002211 WO2004051072A1 (de) | 2002-12-04 | 2003-07-02 | Brennstoffeinspritzventil |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2006509140A true JP2006509140A (ja) | 2006-03-16 |
Family
ID=32318943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004555983A Pending JP2006509140A (ja) | 2002-12-04 | 2003-07-02 | 燃料噴射弁 |
Country Status (6)
Country | Link |
---|---|
US (2) | US8020789B2 (ja) |
EP (1) | EP1570170B1 (ja) |
JP (1) | JP2006509140A (ja) |
CN (1) | CN100432418C (ja) |
DE (1) | DE10256662A1 (ja) |
WO (1) | WO2004051072A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012246789A (ja) * | 2011-05-25 | 2012-12-13 | Denso Corp | 燃料噴射弁 |
JP2014501347A (ja) * | 2010-12-23 | 2014-01-20 | 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 | 燃料を噴射する弁 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006022727A (ja) * | 2004-07-08 | 2006-01-26 | Aisan Ind Co Ltd | 燃料噴射弁 |
DE102008042593A1 (de) * | 2008-10-02 | 2010-04-08 | Robert Bosch Gmbh | Kraftstoff-Injektor sowie Oberflächenbehandlungsverfahren |
US8523090B2 (en) * | 2009-12-23 | 2013-09-03 | Caterpillar Inc. | Fuel injection systems and armature housings |
DE102011089999A1 (de) * | 2011-12-27 | 2013-06-27 | Robert Bosch Gmbh | Magnetventil, insbesondere Mengensteuerventil einer Kraftstoff-Hochdruckpumpe |
US9228550B2 (en) | 2013-03-11 | 2016-01-05 | Stanadyne Llc | Common rail injector with regulated pressure chamber |
WO2017109886A1 (ja) * | 2015-12-24 | 2017-06-29 | 日立オートモティブシステムズ株式会社 | 電磁弁及びその製造方法 |
DE102017218224A1 (de) * | 2017-10-12 | 2019-04-18 | Robert Bosch Gmbh | Ventil zum Zumessen eines Fluids, insbesondere Brennstoffeinspritzventil |
DE102017218764A1 (de) * | 2017-10-20 | 2019-04-25 | Robert Bosch Gmbh | Magnetventil zum Steuern von Fluiden |
DE102019214259A1 (de) * | 2019-09-19 | 2021-03-25 | Robert Bosch Gmbh | Ventil zum Zumessen eines Fluids |
Family Cites Families (39)
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FR2385904A1 (fr) * | 1977-03-28 | 1978-10-27 | Promeyrat Casteilla Tech Nle M | Piston alternatif a pourtour de tete auto-adaptable pour l'amelioration fondamentale du moteur thermique, et autres machines a pistons alternatifs |
US4245789A (en) * | 1979-05-03 | 1981-01-20 | General Motors Corporation | Electromagnetic fuel injector |
DE3230844A1 (de) * | 1982-08-19 | 1984-02-23 | Robert Bosch Gmbh, 7000 Stuttgart | Elektromagnetisch betaetigbares ventil |
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DE3408012A1 (de) * | 1984-03-05 | 1985-09-05 | Gerhard Dipl.-Ing. Warren Mich. Mesenich | Elektromagnetisches einspritzventil |
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JPH1047199A (ja) * | 1996-07-31 | 1998-02-17 | Mitsubishi Electric Corp | 筒内噴射用燃料噴射弁 |
DE19639117A1 (de) * | 1996-09-24 | 1998-03-26 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
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-
2002
- 2002-12-04 DE DE10256662A patent/DE10256662A1/de not_active Withdrawn
-
2003
- 2003-07-02 CN CNB038255588A patent/CN100432418C/zh not_active Expired - Fee Related
- 2003-07-02 JP JP2004555983A patent/JP2006509140A/ja active Pending
- 2003-07-02 EP EP03812120.8A patent/EP1570170B1/de not_active Expired - Lifetime
- 2003-07-02 US US10/531,407 patent/US8020789B2/en not_active Expired - Fee Related
- 2003-07-02 WO PCT/DE2003/002211 patent/WO2004051072A1/de active Application Filing
-
2011
- 2011-08-25 US US13/217,763 patent/US8656591B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014501347A (ja) * | 2010-12-23 | 2014-01-20 | 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 | 燃料を噴射する弁 |
US9771908B2 (en) | 2010-12-23 | 2017-09-26 | Robert Bosch Gmbh | Valve for injecting fuel |
JP2012246789A (ja) * | 2011-05-25 | 2012-12-13 | Denso Corp | 燃料噴射弁 |
Also Published As
Publication number | Publication date |
---|---|
EP1570170A1 (de) | 2005-09-07 |
WO2004051072A1 (de) | 2004-06-17 |
EP1570170B1 (de) | 2014-04-16 |
DE10256662A1 (de) | 2004-06-17 |
CN1714235A (zh) | 2005-12-28 |
CN100432418C (zh) | 2008-11-12 |
US20060151639A1 (en) | 2006-07-13 |
US8020789B2 (en) | 2011-09-20 |
US20110305823A1 (en) | 2011-12-15 |
US8656591B2 (en) | 2014-02-25 |
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