CN102317614B - 喷射阀 - Google Patents
喷射阀 Download PDFInfo
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- CN102317614B CN102317614B CN200980156887.0A CN200980156887A CN102317614B CN 102317614 B CN102317614 B CN 102317614B CN 200980156887 A CN200980156887 A CN 200980156887A CN 102317614 B CN102317614 B CN 102317614B
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- housing
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- valve
- pressure injection
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- 238000002347 injection Methods 0.000 title claims abstract description 58
- 239000007924 injection Substances 0.000 title claims abstract description 58
- 241001672694 Citrus reticulata Species 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 239000000446 fuel Substances 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 210000004907 gland Anatomy 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/16—Sealing of fuel injection apparatus 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
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/858—Mounting of fuel injection apparatus sealing arrangements between injector and engine
-
- 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
- F02M2200/9015—Elastomeric or plastic 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/90—Selection of particular materials
- F02M2200/9038—Coatings
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
提出一种用于配量地喷射流体尤其燃料的喷射阀，该喷射阀具有一壳体(11)和包围壳体(11)的塑料压力注塑包封件(16)，该壳体(11)以一流体入流侧的、上部的壳体端部和一流体喷射侧的、下部的壳体端部从塑料压力注塑包封件伸出。为了获得所谓的“涉水能力”，壳体(11)和塑料压力注塑包封件(16)的在塑料压力注塑包封件(16)的下端部上环绕的分离部位(22)被优选借助一密封圈(23)密封。
Description
技术领域
本发明涉及一种根据权利要求1前序部分的、用于配量地喷射流体、尤其燃料的喷射阀。
背景技术
一种公知的燃料喷射阀(DE19744739A1)具有一由多个部分组装成的壳体，这些部分中的一部分由具有燃料入流管的入流接管构成并且一部分由一在直径上成阶梯状的套筒构成。管状入流接管插入到套筒的直径较大的套筒区段中并且部分地插入到套筒的直径较小的套筒区段中并且在其插入端部上承载一驱动阀针的电磁铁的电磁线圈，电磁铁的与阀针固定连接的衔铁在入流接管的插入到直径较小的套筒区段中的端部中轴向可移动地导向。直径较小的套筒区段的敞开端部被一阀体封闭，在该阀体上构造了一围绕阀口的阀座。一在阀针的端部上构造的关闭体与阀座共同作用用于开启和关闭阀口。喷孔盘设置在阀体后面。入流接管的从套筒伸出的区域被一塑料压力注塑包封件包围，该塑料压力注塑包封件覆盖套筒的直径较大的区段的开口并且与入流接管的入流侧的端部间隔地终止。用于电磁铁的电磁线圈的连接插头插在该塑料压力注塑包封件中。该燃料喷射阀被装入到内燃机的缸盖中的阀接收部中并且借助两个密封环相对于阀接收部的壁密封。在此，在套筒的直径较小的套筒区段的、在喷射侧的下端部上存在的环槽中接收一下部的密封环并且一上部的密封环推到入流接管的从塑料压力注塑包封件伸出的、入流侧的上端部上。该上部的密封环在喷射阀装入到阀接收部中之后压紧在塑料压力注塑包封件的环状的端面上。
发明内容
具有权利要求1特征的根据本发明的喷射阀具有优点，即通过附加地密封在喷射阀壳体上的塑料压力注塑包封件的下部的台阶部位长久地确保喷射阀的绝对密封并且在壳体内部，例如在电磁线圈上没有出现腐蚀损害。由此该喷射阀是“能涉水的”，也是说对浸入到水中、泥中等不敏感，如其在越野车和载重车辆中要求的一样。
通过在其他权利要求中实施的措施，在权利要求中给出的喷射阀的有利的扩展构型和改善是可行的。
根据本发明的一有利的实施方式，通过一与在壳体和塑料压力注塑包封件之间的下部的分离部位搭接的密封圈实现附加地密封壳体，该密封圈一方面压紧在塑料压力注塑包封件上并且另一方面压紧在壳体上。借助一这种优选由弹性体构成的密封环没有干涉到阀结构中地以制造技术简单和可靠的方式实现密封。
根据本发明一有利的实施方式，塑料压力注塑包封件在其上端部附近设有一环绕的外槽并且一用于相对于阀接收部密封的密封环置入到该外槽中。通过该上部的密封环，也确保喷射阀在安装位置中的涉水能力，在这些安装位置中喷射阀横向地或者在顶部之上地安装，使得例如喷射阀的入流侧的端部比喷射侧的端部更深。
附图说明
本发明根据在附图中示出的实施例在下面的说明中详细解释。附图示出：
图1喷射阀的纵剖图，
图2图1中的喷射阀的立体侧视图。
具体实施方式
在图2中以立体侧视图和在图1中以剖面图示出的喷射阀例如用于将燃料喷射到通至内燃机的燃烧室的进气道中或者直接喷射到内燃机的燃烧室中或者用于为了降低在废气中含有的氧化氮将另一流体例如尿素水溶液配量地喷射到内燃机的排气装置中。该喷射阀具有一壳体11，该壳体由三个壳体部分组装成，也就是说由一带有用于流体的入流口121的入流接管12、阀管13和一推到阀管13上的、带有具有两个不同内径的套筒区段141和142的壳体套筒14，入流接管12的端部插入到阀管中。具有较大内径的套筒区段141包围位于阀管13上的、用于操纵在阀管13内部设置的阀针的电磁铁的电磁线圈15。该阀针以公知的方式与电磁铁的衔铁固定地连接并且在阀管13中设置的阀关闭弹簧的作用下以一个关闭头压紧在喷射阀的、包围阀口的阀座上。壳体套筒14的具有较小内径的套筒区段142形状锁合地放置在阀管13上。
壳体11被塑料压力注塑包封件16包围，壳体11以其流体入流侧的、上部的壳体端部和其流体喷射侧的、下部的壳体端部轴向突出于该塑料压力注塑包封件。在此，该流体入流侧的、上部的壳体端部由入流接管12的末区段构成并且流体喷射侧的、下部的壳体端部由具有较大内径的套筒区段141的一部分和具有较小内径的全部套筒区段142构成。一连接插头20注入到塑料压力注塑包封件16中，该连接插头的两个插头触点21与电磁线圈15的绕组连接。该喷射阀通常装入到阀接收部17、27中，如在图1中部分地示出的一样。在燃料喷射阀的情况下，下部的阀接收部17是内燃机的燃烧缸的缸盖中的孔并且上部的阀接收部27是固定在缸盖上的燃料分配器中的孔。为了相对于阀接收部17、27密封壳体11,设有两个密封环18、19，它们中的一下部的密封环18置入在一切入在壳体11中确切地说在具有较小内径的套筒区段142中的环槽26中并且一上部的密封环19放置在入流接管12的、从塑料压力注塑包封件16伸出的区段上。
为了避免在壳体11的内部中尤其在电磁线圈15上的腐蚀损伤，如喷射阀应用在承受粗糙运行方式的汽车中时，通过水侵入到在壳体11和塑料压力注塑包封件16之间的分离部位上出现的腐蚀损伤一样，壳体11和塑料压力注塑包封件16的、在塑料压力注塑包封件16的下端部上环绕的分离部位22被密封，也就是说制成水密的。在此，在示出的实施例中应用一优选由弹性体制成的密封圈23，该密封圈一方面压紧在塑料压力注塑包封件16上一方面压紧在壳体11确切地说在壳体套筒14的具有较大内径的套筒区段141上。附加地，塑料压力注塑包封件16在其上端部附近设有一环绕的外槽24并且一密封环25例如O环置入在该外槽24中，该密封环在阀接收部27中压在其内壁上。然后如果需要一喷射阀的安装位置，该密封环25是尤其有利的，在该安装位置中入流接管12的入流口121可能在空间上位于喷射阀的喷射口的下部并且由此该区域在汽车运行时同样承受增大数量的水、泥等或者出现喷射阀完全浸入到水中的运行状态。
Claims (4)
1.用于配量地喷射流体的喷射阀，具有一壳体(11)和包围该壳体(11)的塑料压力注塑包封件(16)，所述壳体(11)以一流体入流侧的、上部的壳体端部和一流体喷射侧的、下部的壳体端部从该塑料压力注塑包封件伸出，其特征在于，该壳体(11)和该塑料压力注塑包封件(16)的在该塑料压力注塑包封件(16)的下端部上环绕的分离部位(22)在外侧被密封，其中，所述分离部位(22)被一密封圈(23)搭接，该密封圈一方面压套在塑料压力注塑包封件(16)上、一方面压套在壳体(11)上。
2.根据权利要求1的喷射阀，其特征在于，所述密封圈(23)由一弹性体制成。
3.根据权利要求1或2的喷射阀，其特征在于，所述塑料压力注塑包封件(16)在其上端部附近设有一环绕的外槽(24)并且在该外槽(24)中置入一用于相对于一阀接收部(27)密封的密封环(25)。
4.根据权利要求1或2的喷射阀，其特征在于，所述流体是燃料。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009000872.1 | 2009-02-16 | ||
| DE102009000872.1A DE102009000872B4 (de) | 2009-02-16 | 2009-02-16 | Einspritzventil |
| PCT/EP2009/067106 WO2010091759A1 (de) | 2009-02-16 | 2009-12-14 | Einspritzventil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102317614A CN102317614A (zh) | 2012-01-11 |
| CN102317614B true CN102317614B (zh) | 2016-04-27 |
Family
ID=41598039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980156887.0A Active CN102317614B (zh) | 2009-02-16 | 2009-12-14 | 喷射阀 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9359987B2 (zh) |
| EP (1) | EP2396536B1 (zh) |
| JP (1) | JP5738202B2 (zh) |
| CN (1) | CN102317614B (zh) |
| DE (1) | DE102009000872B4 (zh) |
| WO (1) | WO2010091759A1 (zh) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011006221B4 (de) | 2011-03-28 | 2022-09-29 | Robert Bosch Gmbh | Ventil für ein strömendes Medium |
| DE102011081176A1 (de) * | 2011-08-18 | 2013-02-21 | Robert Bosch Gmbh | Ventil zum Zumessen eines strömenden Mediums |
| KR101776335B1 (ko) * | 2011-12-09 | 2017-09-08 | 현대자동차주식회사 | Ｃｎｇ 엔진의 독립 연료분사시스템 |
| DE102013201794A1 (de) | 2013-02-05 | 2014-08-07 | Robert Bosch Gmbh | Ventil zum Zumessen von Fluid |
| US9366167B2 (en) * | 2013-11-08 | 2016-06-14 | Continental Automotive Systems, Inc. | Injector water intrusion seal with blow out volume |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6065692A (en) * | 1999-06-09 | 2000-05-23 | Siemens Automotive Corporation | Valve seat subassembly for fuel injector |
| US20060016418A1 (en) * | 2004-07-20 | 2006-01-26 | Aisan Kogyo Kabushiki Kaisha | Fuel injector and a method of sealing the same |
| DE102006042600A1 (de) * | 2006-09-11 | 2008-03-27 | Robert Bosch Gmbh | Elektromagnetisch betätigbares Ventil und Verfahren zur Herstellung eines elektromagnetisch betätigbaren Ventils |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2908095C2 (de) * | 1979-03-02 | 1984-02-16 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffeinspritzanlage für Brennkraftmaschinen |
| DE19744739A1 (de) | 1997-10-10 | 1999-04-15 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
| JP3712589B2 (ja) | 2000-03-31 | 2005-11-02 | 愛三工業株式会社 | インジェクタの応答性調整方法 |
| US6622752B2 (en) * | 2000-06-16 | 2003-09-23 | Bosch Automotive Systems Corporation | Pressure relief valve |
| JP3899937B2 (ja) | 2002-01-18 | 2007-03-28 | 株式会社デンソー | 燃料噴射弁 |
| US7258282B2 (en) * | 2003-12-19 | 2007-08-21 | Siemens Vdo Automotive Corporaton | Fuel injector with an armature assembly having a continuous elongated armature and a metering assembly having a seat and polymeric support member |
| JP3993594B2 (ja) * | 2004-09-27 | 2007-10-17 | 株式会社ケーヒン | 電磁式燃料噴射弁 |
| DE102005037319A1 (de) * | 2005-08-04 | 2007-02-08 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
| DE102005052255B4 (de) * | 2005-11-02 | 2020-12-17 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
| US20080006713A1 (en) * | 2006-07-06 | 2008-01-10 | Parish James R | Fuel injector having an internally mounted cross-flow nozzle for enhanced compressed natural gas jet spray |
-
2009
- 2009-02-16 DE DE102009000872.1A patent/DE102009000872B4/de active Active
- 2009-12-14 JP JP2011549451A patent/JP5738202B2/ja not_active Expired - Fee Related
- 2009-12-14 CN CN200980156887.0A patent/CN102317614B/zh active Active
- 2009-12-14 US US13/201,731 patent/US9359987B2/en not_active Expired - Fee Related
- 2009-12-14 EP EP09774677.0A patent/EP2396536B1/de active Active
- 2009-12-14 WO PCT/EP2009/067106 patent/WO2010091759A1/de active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6065692A (en) * | 1999-06-09 | 2000-05-23 | Siemens Automotive Corporation | Valve seat subassembly for fuel injector |
| US20060016418A1 (en) * | 2004-07-20 | 2006-01-26 | Aisan Kogyo Kabushiki Kaisha | Fuel injector and a method of sealing the same |
| DE102006042600A1 (de) * | 2006-09-11 | 2008-03-27 | Robert Bosch Gmbh | Elektromagnetisch betätigbares Ventil und Verfahren zur Herstellung eines elektromagnetisch betätigbaren Ventils |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010091759A1 (de) | 2010-08-19 |
| JP5738202B2 (ja) | 2015-06-17 |
| US9359987B2 (en) | 2016-06-07 |
| EP2396536A1 (de) | 2011-12-21 |
| CN102317614A (zh) | 2012-01-11 |
| DE102009000872A1 (de) | 2010-08-19 |
| EP2396536B1 (de) | 2014-04-16 |
| US20120037727A1 (en) | 2012-02-16 |
| JP2012517553A (ja) | 2012-08-02 |
| DE102009000872B4 (de) | 2018-05-30 |
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