JP6077530B2 - 内燃機関の噴射弁 - Google Patents
内燃機関の噴射弁 Download PDFInfo
- Publication number
- JP6077530B2 JP6077530B2 JP2014513958A JP2014513958A JP6077530B2 JP 6077530 B2 JP6077530 B2 JP 6077530B2 JP 2014513958 A JP2014513958 A JP 2014513958A JP 2014513958 A JP2014513958 A JP 2014513958A JP 6077530 B2 JP6077530 B2 JP 6077530B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve seat
- hole
- injection
- seat body
- 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
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
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/04—Injectors peculiar thereto
-
- 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
- F02M61/16—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
-
- 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
- F02M61/188—Spherical or partly spherical shaped valve member ends
-
- 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
- F02M61/1886—Details of valve seats not covered by groups F02M61/1866 - F02M61/188
-
- 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
-
- 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
- F02M2200/06—Fuel-injection apparatus having means for preventing coking, e.g. of fuel injector discharge orifices or valve needles
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
12 弁座体
13 弁室
14 弁座
15 閉鎖ヘッド
16 弁部材
17 弁ニードル
18 半径方向孔
19 リターンスプリング、弁閉鎖ばね
20 アクチュエータ
21 噴射孔
22 孔入口区分
23 孔出口区分
24 盲孔
25 プランジャ
26 窪み
27 突起部
28 隆起部
29 凹部
121 内側の弁座体壁部
122 外側の弁座体壁部
221 孔入口開口
231 孔出口開口
Claims (7)
- 内燃機関の噴射弁であって、弁座体(12)と、ストローク運動のために駆動可能な弁部材(16)とを備えており、前記弁座体(12)は、弁室(13)を画成する内側の弁座体壁部(121)と、該内側の弁座体壁部(121)に形成された弁座(14)と、前記内側の弁座体壁部(121)内に位置する複数の孔入口開口(221)を備えた複数の噴射孔(21)と、前記孔入口開口(221)によって包囲された内側の弁座体壁部(121)の領域内に形成された盲孔(24)とを有しており、前記弁部材(16)は閉鎖ヘッド(15)を有していて、該閉鎖ヘッド(15)は、前記弁座(14)と共に、前記噴射孔(21)の前記孔入口開口(221)の上流側に位置するシール座を形成している形式のものにおいて、
前記弁部材(16)の前記閉鎖ヘッド(15)は、球形状をなし、中空円筒形の弁ニードル(17)の端面側の端部に固定され、前記弁座体(12)に面した端面側に、前記閉鎖ヘッド(15)から突き出すプランジャ(25)を備えていて、該プランジャ(25)は、前記盲孔(24)の輪郭形状に適合した形状を有していて、前記シール座の閉鎖時に前記盲孔(24)内に侵入し、押し退けられた前記盲孔内(24)の燃料が、追加的な噴射量として噴射されるように、配置されていることを特徴とする、内燃機関の噴射弁。 - 前記盲孔(24)が窪み(26)として構成されていて、前記プランジャ(25)が突起部(27)として構成されており、前記盲孔(24)および前記プランジャ(25)が釣鐘状または帽子状の形状を有していることを特徴とする、請求項1に記載の噴射弁。
- 前記窪み(26)が窪み底部の中央から突き出す隆起部(28)を有していて、前記突起部(27)が、前記隆起部(28)の形状に適合した輪郭形状を有する中央の凹部(29)を有していることを特徴とする、請求項2に記載の噴射弁。
- 前記盲孔(24)および前記プランジャ(25)が、円錐台形の形状を有していることを特徴とする、請求項1に記載の噴射弁。
- 前記プランジャ(25)が前記閉鎖ヘッド(15)に一体的に成形されていることを特徴とする、請求項1から4のいずれか1項に記載の噴射弁。
- 前記噴射孔(21)のすべての孔入口開口(221)が、前記弁座体(12)の軸線に対して同心的な円上に互いに間隔を保って配置され、周方向で互いに同じ間隔を有しており、前記盲孔(24)の軸線が前記弁座体(12)の軸線と同軸的であることを特徴とする、請求項1から5のいずれか1項に記載の噴射弁。
- 前記噴射孔(21)が、横断面で見て段付けされた孔区分(22,23)を有していて、前記孔区分(22,23)が、孔入口開口(221)から孔出口開口(231)へ向かって次第に大きくなる横断面を有していることを特徴とする、請求項1から6のいずれか1項に記載の噴射弁。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011077272.3 | 2011-06-09 | ||
DE102011077272A DE102011077272A1 (de) | 2011-06-09 | 2011-06-09 | Einspritzventil für Brennkraftmaschinen |
PCT/EP2012/057519 WO2012167992A1 (de) | 2011-06-09 | 2012-04-25 | Einspritzventil für brennkraftmaschinen |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014516134A JP2014516134A (ja) | 2014-07-07 |
JP6077530B2 true JP6077530B2 (ja) | 2017-02-08 |
Family
ID=46022211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014513958A Expired - Fee Related JP6077530B2 (ja) | 2011-06-09 | 2012-04-25 | 内燃機関の噴射弁 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9771912B2 (ja) |
JP (1) | JP6077530B2 (ja) |
KR (1) | KR101947367B1 (ja) |
DE (1) | DE102011077272A1 (ja) |
WO (1) | WO2012167992A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150020778A1 (en) * | 2012-03-14 | 2015-01-22 | International Engine Intellectual Property Company Llc | Fuel injector nozzle |
JP5959892B2 (ja) * | 2012-03-26 | 2016-08-02 | 日立オートモティブシステムズ株式会社 | 火花点火式燃料噴射弁 |
JP5969564B2 (ja) * | 2014-10-01 | 2016-08-17 | トヨタ自動車株式会社 | 燃料噴射弁 |
US10487787B2 (en) * | 2017-06-20 | 2019-11-26 | Caterpillar Inc. | Injector tip for a fuel injector |
WO2019030078A1 (en) * | 2017-08-08 | 2019-02-14 | Robert Bosch Gmbh | FUEL INJECTOR NOZZLE |
US20200003170A1 (en) * | 2018-07-02 | 2020-01-02 | GM Global Technology Operations LLC | Fuel Injector With Precluded Fuel Flow at Sac Volume |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1190361A (fr) * | 1957-01-23 | 1959-10-12 | Maschf Augsburg Nuernberg Ag | Gicleur pour moteurs à combustion interne |
JP2765178B2 (ja) * | 1990-04-11 | 1998-06-11 | 株式会社デンソー | 燃料噴射ノズル |
JPH04112965A (ja) | 1990-08-31 | 1992-04-14 | Hino Motors Ltd | 燃料噴射装置 |
JPH08247002A (ja) * | 1995-03-13 | 1996-09-24 | Nippondenso Co Ltd | 燃料噴射ノズル |
JP3766987B2 (ja) * | 1995-07-03 | 2006-04-19 | 株式会社デンソー | 燃料噴射ノズル |
DE19605368A1 (de) * | 1996-02-14 | 1997-08-21 | Christian Kurpiers | Lochdüse mit Halbkugelloch |
JP2002332935A (ja) * | 2001-05-08 | 2002-11-22 | Hitachi Ltd | 燃料噴射弁および内燃機関 |
DE10163909A1 (de) * | 2001-12-22 | 2003-07-03 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennskraftmaschinen |
JP2005337192A (ja) | 2004-05-31 | 2005-12-08 | Mitsubishi Electric Corp | 燃料噴射弁、及び最小隙間決定方法 |
WO2006017778A1 (en) | 2004-08-05 | 2006-02-16 | Siemens Vdo Automotive Corporation | Deep pocket seat assembly in modular fuel injector having axial contact terminals and methods |
DE102005036951A1 (de) | 2005-08-05 | 2007-02-08 | Robert Bosch Gmbh | Brennstoffeinspritzventil und Verfahren zur Ausformung von Abspritzöffnungen |
CN101365875A (zh) * | 2006-03-14 | 2009-02-11 | 丰田自动车株式会社 | 内燃机的燃料喷射控制装置 |
JP2010038126A (ja) * | 2008-08-08 | 2010-02-18 | Hitachi Ltd | 燃料噴射弁 |
DE102009042155A1 (de) * | 2009-09-21 | 2011-04-07 | Continental Automotive Gmbh | Kraftstoff-Einspritzventil für eine Brennkraftmaschine |
-
2011
- 2011-06-09 DE DE102011077272A patent/DE102011077272A1/de not_active Withdrawn
-
2012
- 2012-04-25 US US14/124,764 patent/US9771912B2/en not_active Expired - Fee Related
- 2012-04-25 WO PCT/EP2012/057519 patent/WO2012167992A1/de active Application Filing
- 2012-04-25 KR KR1020137032437A patent/KR101947367B1/ko active IP Right Grant
- 2012-04-25 JP JP2014513958A patent/JP6077530B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR20140032417A (ko) | 2014-03-14 |
JP2014516134A (ja) | 2014-07-07 |
KR101947367B1 (ko) | 2019-04-22 |
US20140190451A1 (en) | 2014-07-10 |
DE102011077272A1 (de) | 2012-12-13 |
WO2012167992A1 (de) | 2012-12-13 |
US9771912B2 (en) | 2017-09-26 |
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