JP5822249B2 - 内燃機関の燃料噴射器 - Google Patents
内燃機関の燃料噴射器 Download PDFInfo
- Publication number
- JP5822249B2 JP5822249B2 JP2010017827A JP2010017827A JP5822249B2 JP 5822249 B2 JP5822249 B2 JP 5822249B2 JP 2010017827 A JP2010017827 A JP 2010017827A JP 2010017827 A JP2010017827 A JP 2010017827A JP 5822249 B2 JP5822249 B2 JP 5822249B2
- Authority
- JP
- Japan
- Prior art keywords
- spindle
- sprayer
- chamber
- blocking area
- blocking
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 28
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 51
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 description 7
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000006199 nebulizer Substances 0.000 description 3
- 230000001788 irregular Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material 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
- 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
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/182—Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
-
- 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
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/042—The valves being provided with fuel passages
-
- 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
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/06—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves being furnished at seated ends with pintle or plug shaped extensions
-
- 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
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
-
- 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
- F02M61/1866—Valve seats or member ends having multiple cones
-
- 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
- F02M61/1893—Details of valve member ends not covered by groups F02M61/1866 - F02M61/188
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
より具体的には、本発明は請求項1の前提部分に記載の燃料噴射器に関し、該燃料噴射器は、ハウジングと、前記ハウジングの下端に固定された弁ガイドと、前記弁ガイドの下端に固定され、かつ複数のノズル孔を設けた噴霧器と、前記弁ガイドの弁座と協働する弁部を備えるスピンドルと、前記スピンドルが閉鎖位置にある時に前記ノズル孔と連通している容積を減少させるように前記噴霧器の縦孔内に延びる遮断要素とからなる。
本発明による解決策によれば、前記スピンドルの閉鎖位置において、前記ノズル孔の注入口は全て上方及び下方の遮断領域の間の噴射チャンバに連通し、前記スピンドルの開放位置において、前記上方の遮断領域は閉鎖状態を維持し、前記下方の遮断領域は前記遮断要素の中央管及び前記噴射チャンバの間の連通を確立するように開放される。
本発明による構成は前記ノズル孔の配置をより自由にし、任意の噴霧高度で、噴霧の質を最適にするように設計されたパターンに従って該ノズル孔を配置することができる。本発明によると、従来技術のように前記ノズル孔を一列又は二列に配置する必要がなくなる。
本発明のノズル孔は、前記スピンドルのリフト量が非常に少ない状態であっても、適切な高度差で互いに軸線方向に離間して配置することができる。特に、前記スピンドルのリフト量は、前記ノズル孔の間の軸線方向距離より少なくても良い。
Claims (3)
- 内燃機関の燃料噴射器であって、
ハウジング(16)と、
前記ハウジング(16)の下端に固定される弁ガイド(38)と、前記弁ガイド(38)は縦方向のガイド孔(44)、および弁座(50)を有するチャンバ(46)を備え、前記チャンバ(46)は燃料供給管(22、48)に接続されることと、
前記弁ガイド(38)の下端に固定される噴霧器(56)と、前記噴霧器(56)は前記チャンバ(46)に連通した縦孔(80)を備え、前記縦孔(80)に対向する注入口(84)を有する複数のノズル孔(82)を備えることと、
前記弁座(50)、及び前記噴霧器(56)の縦孔(80)内に延びる遮断要素(94)と協働する弁部(92)を有するスピンドル(88)と、前記遮断要素(94)の外面及び前記縦孔(80)の内面の間には、互いに軸線方向に沿って離間した上方遮断領域(102)及び下方遮断領域(106)が画定され、前記上方遮断領域(102)及び前記下方遮断領域(106)は、前記スピンドル(88)の閉鎖位置において共に閉鎖され、前記遮断要素(94)は前記上方遮断領域(102)の上方及び前記下方遮断領域(106)の下方の両方で前記噴霧器(56)の縦孔(80)に連通する中央管(112)を有することとを備える燃料噴射器において、
前記上方遮断領域(102)及び下方遮断領域(106)は、前記噴霧器(56)の縦孔(80)の内面と遮断要素(94)の外面との間に形成された噴射チャンバ(110)により、軸線方向に沿って互いに分離され、
前記スピンドル(88)の閉鎖位置において、前記ノズル孔(82)の注入口(84)は全て前記上方遮断領域(102)及び下方遮断領域(106)の間の前記噴射チャンバ(110)と連通し、前記スピンドル(88)の開放位置において、前記上方遮断領域(102)が閉鎖状態を維持し、かつ前記下方遮断領域(106)が開放されることにより、前記遮断要素(94)の中央管(112)及び前記噴射チャンバ(110)の間の連通が確立され、
前記遮断要素(94)は、それぞれ前記縦孔(80)の第一及び第二円筒状シール面(100、104)によって、前記上方及び下方遮断領域(102、106)を形成する第一及び第二円筒状シール部(96、98)を備え、
前記遮断要素(94)は前記第一円筒状シール部(96)及び第二円筒状シール部(98)の間に軸線方向に延びる小径部分(108)を有し、その小径部分(108)は前記縦孔(80)の内面との協働により、前記噴射チャンバ(110)を区画することを特徴とする
燃料噴射器。 - 前記下方遮断領域(106)の下方の縦孔(80)の下方領域(118)は前記遮断要素(94)の中央管(112)と連通していることに特徴を有する、請求項1に記載の燃料噴射器。
- 前記第一円筒状シール面(100)は前記第二円筒状シール面(104)より大きな直径を有することに特徴を有する、請求項1に記載の燃料噴射器。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09156590.3 | 2009-03-30 | ||
EP09156590A EP2239451B1 (en) | 2009-03-30 | 2009-03-30 | A fuel injector for internal combustion engines |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2010236536A JP2010236536A (ja) | 2010-10-21 |
JP2010236536A5 JP2010236536A5 (ja) | 2013-02-28 |
JP5822249B2 true JP5822249B2 (ja) | 2015-11-24 |
Family
ID=40941514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010017827A Expired - Fee Related JP5822249B2 (ja) | 2009-03-30 | 2010-01-29 | 内燃機関の燃料噴射器 |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2239451B1 (ja) |
JP (1) | JP5822249B2 (ja) |
KR (1) | KR101686671B1 (ja) |
CN (1) | CN101852157B (ja) |
AT (1) | ATE523686T1 (ja) |
DK (1) | DK2239451T3 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010040401A1 (de) * | 2010-09-08 | 2012-03-08 | Robert Bosch Gmbh | Kraftstoffinjektor |
DK2503138T3 (da) * | 2011-03-24 | 2013-06-03 | Omt Ohg Torino S P A | Elektrisk styret brændstofindsprøjtningsindretning til store dieselmotorer |
JP5798898B2 (ja) * | 2011-11-24 | 2015-10-21 | 三菱重工業株式会社 | 燃料噴射装置 |
DE102013001098B3 (de) * | 2013-01-23 | 2014-07-03 | L'orange Gmbh | Kraftstoffinjektor |
US10337448B2 (en) * | 2015-12-22 | 2019-07-02 | Ford Global Technologies, Llc | Methods and systems for a fuel injector assembly |
DK179281B1 (en) * | 2016-12-13 | 2018-04-03 | Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland | Nozzle for fuel valve for injecting fuel into the cylinders of a large turbocharged two-stroke compression-ignited internal combustion engine |
JP7079182B2 (ja) * | 2018-10-26 | 2022-06-01 | 株式会社クボタ | 電子燃料噴射式ディーゼルエンジン |
DK181318B1 (en) | 2022-02-18 | 2023-08-10 | Man Energy Solutions Filial Af Man Energy Solutions Se Tyskland | A fuel valve for a large turbocharged two-stroke uniflow crosshead internal combustion engine |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2711902A1 (de) * | 1977-03-18 | 1978-09-21 | Bosch Gmbh Robert | Kraftstoffeinspritzduese |
DE2948451A1 (de) * | 1979-12-01 | 1981-06-04 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffeinspritzduese fuer brennkraftmaschinen |
DK495880A (da) | 1980-11-20 | 1982-05-21 | B & W Diesel As | Braendselinjektor til forbraendingsmotorer |
JPH0158770U (ja) * | 1987-10-07 | 1989-04-12 | ||
JPH0538353U (ja) * | 1991-10-30 | 1993-05-25 | いすゞ自動車株式会社 | ホ−ル型ノズル |
JPH05321789A (ja) * | 1992-05-15 | 1993-12-07 | Kubota Corp | ディーゼルエンジンの多孔ノズル形燃料噴射弁 |
JPH08144896A (ja) * | 1994-11-25 | 1996-06-04 | Zexel Corp | 可変噴孔型燃料噴射ノズル |
DE19815918A1 (de) * | 1998-04-09 | 1999-10-21 | Man B & W Diesel As | Brennstoffeinspritzvorrichtung |
JPH11351103A (ja) * | 1998-06-13 | 1999-12-21 | Toyota Central Res & Dev Lab Inc | 燃料噴射弁 |
EP1063416A3 (en) * | 1999-06-25 | 2003-08-06 | Delphi Technologies, Inc. | Fuel injector |
JP4182315B2 (ja) * | 2000-02-04 | 2008-11-19 | 株式会社デンソー | 燃料噴射ノズル |
DE50107401D1 (de) * | 2000-02-07 | 2005-10-20 | Bosch Gmbh Robert | Einspritzdüse |
WO2008071187A1 (en) | 2006-12-15 | 2008-06-19 | Man Diesel A/S | A fuel injector for an internal combustion engine |
CN101558231B (zh) * | 2006-12-15 | 2012-01-04 | 曼柴油机涡轮机欧洲股份公司曼柴油机涡轮机德国分公司 | 内燃机用的燃料喷射器 |
-
2009
- 2009-03-30 AT AT09156590T patent/ATE523686T1/de not_active IP Right Cessation
- 2009-03-30 DK DK09156590.3T patent/DK2239451T3/da active
- 2009-03-30 EP EP09156590A patent/EP2239451B1/en active Active
-
2010
- 2010-01-29 JP JP2010017827A patent/JP5822249B2/ja not_active Expired - Fee Related
- 2010-03-30 CN CN201010156144.8A patent/CN101852157B/zh active Active
- 2010-03-30 KR KR1020100028612A patent/KR101686671B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
CN101852157A (zh) | 2010-10-06 |
EP2239451A1 (en) | 2010-10-13 |
KR101686671B1 (ko) | 2016-12-14 |
CN101852157B (zh) | 2015-06-24 |
DK2239451T3 (da) | 2011-10-10 |
JP2010236536A (ja) | 2010-10-21 |
EP2239451B1 (en) | 2011-09-07 |
KR20100109501A (ko) | 2010-10-08 |
ATE523686T1 (de) | 2011-09-15 |
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