JP5523518B2 - 圧力バランス式の制御弁を有する燃料噴射弁 - Google Patents
圧力バランス式の制御弁を有する燃料噴射弁 Download PDFInfo
- Publication number
- JP5523518B2 JP5523518B2 JP2012176153A JP2012176153A JP5523518B2 JP 5523518 B2 JP5523518 B2 JP 5523518B2 JP 2012176153 A JP2012176153 A JP 2012176153A JP 2012176153 A JP2012176153 A JP 2012176153A JP 5523518 B2 JP5523518 B2 JP 5523518B2
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- Prior art keywords
- valve
- seat
- pressure side
- chamber
- control
- 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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- 238000002347 injection Methods 0.000 title claims description 34
- 239000007924 injection Substances 0.000 title claims description 34
- 239000000446 fuel Substances 0.000 title claims description 31
- 238000007789 sealing Methods 0.000 claims description 16
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 1
- 238000000926 separation method Methods 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- 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
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
- F02M63/0021—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the 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
- 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
- F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
- F02M63/008—Hollow valve members, e.g. members internally guided
-
- 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
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
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)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Claims (6)
- 内燃機関のための燃料噴射弁であって、
弁ニードル(4)を含んでおり、該弁ニードルは該弁ニードルの軸線方向運動によって少なくとも1つの噴射孔(5)の開口部を制御するようになっており、
高圧側(14)に接続された制御室(17)を含んでおり、該制御室の圧力は少なくとも間接的に前記弁ニードル(4)に作用するようになっており、
制御弁(23)を含んでおり、該制御弁は、半径方向で、前記制御室(17)に接続された高圧側の弁室(22)と低圧側の弁室(24)との間に設けられた1つの弁座(26)と、摺動自在に案内された1つの制御弁部材(25)とを備えており、該制御弁部材は前記高圧側の弁室(22)を半径方向で画定していて、かつ前記弁座(26)と協働するようになっている形式のものにおいて、
前記制御弁部材(25)は、半径方向で前記高圧側の弁室(22)内へ突出する環状突出部(29)を有しており、該環状突出部の、前記弁座(26)に向いている段部面(29a)は、弁座(26)と協働するシール面を形成しており、
前記制御弁部材(25)は、弁スリーブとして形成されていることを特徴とする、内燃機関のための燃料噴射弁。 - 前記弁座(26)は、1つの円錐面によって形成されており、前記制御弁部材(25)の前記シール面はシール縁部(30)を有しており、該シール縁部は、低圧側の円錐面(30a)と高圧側の円錐面(30b)とによって画定されており、前記低圧側の円錐面(30a)の円錐角(αV1)は、前記弁座(26)の円錐角(αK )よりも大きくなっており、前記高圧側の円錐面(30b)の円錐角(αV2)は、前記弁座(26)の円錐角(αK )よりも小さくなっている請求項1に記載の燃料噴射弁。
- 前記制御弁部材(25)のシール面は、1つの円錐面によって形成されており、前記弁座(26)は座シール縁部(31)を有しており、該座シール縁部は、低圧側の円錐面(26a)と高圧側の円錐面(26b)とによって画定されており、前記低圧側の円錐面(26a)の円錐角(αK1)は、前記制御弁部材(25)の円錐角(αV )よりも小さくなっており、前記高圧側の円錐面(26b)の円錐角(αK2)は前記制御弁部材(25)の円錐角(αV )よりも大きくなっている請求項1に記載の燃料噴射弁。
- 前記弁座(26)は1つの円錐面によって形成されており、かつ前記制御弁部材(25)のシール面は環状のトーラスとして形成されており、又は、前記弁座(26)は環状のトーラスとして形成されており、かつ前記制御弁部材(25)のシール面は1つの円錐面によって形成されている請求項1に記載の燃料噴射弁。
- 前記高圧側の弁室(22)は前記弁スリーブ(25)内に設けられている請求項4に記載の燃料噴射弁。
- 前記弁座(26)の座直径(ds)と前記制御弁部材(25)の案内直径(dF )とは互いに同じ大きさである請求項1から5のいずれか1項に記載の燃料噴射弁。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007035698.8 | 2007-07-30 | ||
DE200710035698 DE102007035698A1 (de) | 2007-07-30 | 2007-07-30 | Kraftstoffeinspritzventil mit verbesserter Dichtheit am Dichtsitz eines druckausgeglichenen Steuerventils |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010518597A Division JP5193299B2 (ja) | 2007-07-30 | 2008-07-09 | 圧力バランス式の制御弁を有する燃料噴射弁 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012211597A JP2012211597A (ja) | 2012-11-01 |
JP5523518B2 true JP5523518B2 (ja) | 2014-06-18 |
Family
ID=39745269
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010518597A Active JP5193299B2 (ja) | 2007-07-30 | 2008-07-09 | 圧力バランス式の制御弁を有する燃料噴射弁 |
JP2012176153A Active JP5523518B2 (ja) | 2007-07-30 | 2012-08-08 | 圧力バランス式の制御弁を有する燃料噴射弁 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010518597A Active JP5193299B2 (ja) | 2007-07-30 | 2008-07-09 | 圧力バランス式の制御弁を有する燃料噴射弁 |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2183476B1 (ja) |
JP (2) | JP5193299B2 (ja) |
CN (1) | CN101784785B (ja) |
DE (1) | DE102007035698A1 (ja) |
RU (1) | RU2485343C2 (ja) |
WO (1) | WO2009016003A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007044356A1 (de) * | 2007-09-17 | 2009-03-19 | Robert Bosch Gmbh | Injektor |
DE102008005532A1 (de) * | 2008-01-22 | 2009-07-23 | Robert Bosch Gmbh | Kraftstoffinjektor, dessen Steuerventilelement einen Stützbereich aufweist |
DE102008040956A1 (de) * | 2008-08-04 | 2010-02-11 | Robert Bosch Gmbh | Kraftstoff-Injektor |
DE102009029355A1 (de) * | 2009-09-10 | 2011-03-24 | Robert Bosch Gmbh | Injektor |
DE102009046563A1 (de) * | 2009-11-10 | 2011-05-12 | Robert Bosch Gmbh | Kraftstoffinjektor |
DE102010031670A1 (de) | 2010-07-22 | 2012-01-26 | Robert Bosch Gmbh | Steuerventil |
DE102011078400A1 (de) * | 2011-06-30 | 2013-01-03 | Robert Bosch Gmbh | Kraftstoffinjektor |
JP2013174158A (ja) * | 2012-02-24 | 2013-09-05 | Nabtesco Corp | 電磁弁 |
DE102013002232B4 (de) * | 2013-02-11 | 2022-11-17 | Man Energy Solutions Se | Kolben einer Brennkraftmaschine |
RU2543636C2 (ru) * | 2013-03-11 | 2015-03-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Казанский государственный аграрный университет" (ФГБОУ ВПО Казанский ГАУ) | Дизельная форсунка |
CN104265532B (zh) * | 2014-07-31 | 2016-08-24 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | 用于喷油器的控制阀 |
DE102015203515A1 (de) * | 2015-02-27 | 2016-09-01 | Robert Bosch Gmbh | Teildruckausgeglichenes Druckregelventil für einen Hochdruckspeicher |
DE102018206763A1 (de) * | 2018-05-02 | 2019-11-07 | Robert Bosch Gmbh | Ventileinrichtung für eine Hochdruckpumpe |
CN111539077B (zh) * | 2020-04-02 | 2023-04-18 | 苏州萨伯工业设计有限公司 | 阀套内锥面锥角偏差精度设计与磨削量检测方法 |
CN114522817A (zh) * | 2022-04-21 | 2022-05-24 | 山西海普瑞科技有限公司 | 一种用于防止高压水射流破坏的喷嘴结构 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH09510525A (ja) * | 1994-03-24 | 1997-10-21 | シーメンス アクチエンゲゼルシヤフト | 内燃機関用の噴射弁 |
DE19624001A1 (de) * | 1996-06-15 | 1997-12-18 | Bosch Gmbh Robert | Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen |
DE19709794A1 (de) * | 1997-03-10 | 1998-09-17 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
DE29708369U1 (de) * | 1997-05-09 | 1997-07-10 | FEV Motorentechnik GmbH & Co. KG, 52078 Aachen | Steuerbares Einspritzventil für die Kraftstoffeinspritzung an Brennkraftmaschinen |
DE19741850A1 (de) * | 1997-09-23 | 1999-03-25 | Bosch Gmbh Robert | Eispritzventil |
US6364282B1 (en) * | 1998-12-04 | 2002-04-02 | Caterpillar Inc. | Hydraulically actuated fuel injector with seated pin actuator |
DE10001099A1 (de) * | 2000-01-13 | 2001-08-02 | Bosch Gmbh Robert | Steuerventil für einen Injektor eines Kraftstoffeinspritzsystems für Brennkraftmaschinen mit Druckerhöhung im Steuerraum |
JP2002332933A (ja) * | 2001-05-10 | 2002-11-22 | Toyota Motor Corp | 燃料噴射装置 |
JP2003003933A (ja) * | 2001-06-20 | 2003-01-08 | Toyota Central Res & Dev Lab Inc | 燃料噴射ノズル |
DE10132249A1 (de) * | 2001-07-04 | 2003-01-23 | Bosch Gmbh Robert | Kraftstoffinjektor mit kraftausgeglichenem Steuerventil |
ES2277229T3 (es) | 2004-06-30 | 2007-07-01 | C.R.F. Societa Consortile Per Azioni | Servovalvula para controlar el inyector de combustible de un motor de combustion interna. |
DE102004061800A1 (de) * | 2004-12-22 | 2006-07-06 | Robert Bosch Gmbh | Injektor eines Kraftstoffeinspritzsystems einer Brennkraftmaschine |
EP1707797B1 (en) * | 2005-03-14 | 2007-08-22 | C.R.F. Società Consortile per Azioni | Adjustable metering servovalve for a fuel injector |
EP1731752B1 (en) * | 2005-05-27 | 2010-01-20 | C.R.F. Società Consortile per Azioni | Fuel-control servo valve, and fuel injector provided with such servo valve |
DE102006057025A1 (de) * | 2006-12-04 | 2008-06-05 | Robert Bosch Gmbh | Magnetventil mit Kugelsitz |
EP2025921B1 (en) * | 2007-07-30 | 2009-10-14 | C.R.F. Società Consortile per Azioni | Fuel injector with balanced metering servovalve, for an internal combustion engine |
-
2007
- 2007-07-30 DE DE200710035698 patent/DE102007035698A1/de not_active Withdrawn
-
2008
- 2008-07-09 EP EP08774899A patent/EP2183476B1/de active Active
- 2008-07-09 JP JP2010518597A patent/JP5193299B2/ja active Active
- 2008-07-09 WO PCT/EP2008/058879 patent/WO2009016003A1/de active Application Filing
- 2008-07-09 CN CN200880101171.6A patent/CN101784785B/zh active Active
- 2008-07-09 RU RU2010107374/06A patent/RU2485343C2/ru active
-
2012
- 2012-08-08 JP JP2012176153A patent/JP5523518B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
EP2183476B1 (de) | 2013-03-27 |
WO2009016003A1 (de) | 2009-02-05 |
RU2485343C2 (ru) | 2013-06-20 |
JP2012211597A (ja) | 2012-11-01 |
RU2010107374A (ru) | 2011-09-10 |
CN101784785B (zh) | 2013-08-21 |
DE102007035698A1 (de) | 2009-02-05 |
JP2010534790A (ja) | 2010-11-11 |
CN101784785A (zh) | 2010-07-21 |
JP5193299B2 (ja) | 2013-05-08 |
EP2183476A1 (de) | 2010-05-12 |
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