EP1623108A1 - Kraftstoffeinspritzventil f r brennkraftmaschinen - Google Patents
Kraftstoffeinspritzventil f r brennkraftmaschinenInfo
- Publication number
- EP1623108A1 EP1623108A1 EP04704544A EP04704544A EP1623108A1 EP 1623108 A1 EP1623108 A1 EP 1623108A1 EP 04704544 A EP04704544 A EP 04704544A EP 04704544 A EP04704544 A EP 04704544A EP 1623108 A1 EP1623108 A1 EP 1623108A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conical section
- fuel injection
- injection channel
- valve
- injection valve
- 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.)
- Granted
Links
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
- F02M61/1846—Dimensional characteristics of discharge orifices
-
- 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
- F02M61/1833—Discharge orifices having changing cross sections, e.g. being divergent
Definitions
- the fuel injection valve according to the invention for internal combustion engines with the characterizing features of patent claim 1 has the advantage that, with a geometry of the injection channel that is easy to produce, there are lower deflection losses when the fuel enters the injection channel and thus good atomization and directional stability of the injection jet.
- the injection channel has a first conical section and a second conical section adjoining it in the flow direction. Both conical sections taper in the flow direction, so that the cross section of the injection channel from the inlet opening to the outlet opening is reduced.
- Fuel injection valve, Figure 2 is an enlargement of Figure 1 in the area of a
- FIG. 3 shows a further illustration of an injection channel with the corresponding geometric variables
- FIG. 4 and FIG. 5 show further exemplary embodiments for injection channels of fuel injection valves according to the invention.
- FIG. 5 shows a further exemplary embodiment of the injection channel 11 according to the invention.
- the ratio of the opening angle 0. ] _, tt2 of the first conical section 35 and the second conical section 37 are inverted here compared to the previous exemplary embodiments, that is to say that the opening angle ⁇ . ] _ of the first conical section 35 is smaller than the opening angle 0C2 of the second conical section 37.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003115967 DE10315967A1 (de) | 2003-04-08 | 2003-04-08 | Kraftstoffeinspritzventil für Brennkraftmaschinen |
PCT/DE2004/000101 WO2004092576A1 (de) | 2003-04-08 | 2004-01-23 | Kraftstoffeinspritzventil für brennkraftmaschinen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1623108A1 true EP1623108A1 (de) | 2006-02-08 |
EP1623108B1 EP1623108B1 (de) | 2008-06-11 |
Family
ID=33016208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04704544A Expired - Lifetime EP1623108B1 (de) | 2003-04-08 | 2004-01-23 | Kraftstoffeinspritzventil für brennkraftmaschinen |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1623108B1 (de) |
JP (1) | JP2006522887A (de) |
CN (1) | CN1771390A (de) |
DE (2) | DE10315967A1 (de) |
WO (1) | WO2004092576A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2876750B1 (fr) * | 2004-10-19 | 2010-09-17 | Renault Sas | Buse d'injection possedant des trous de conicites differentes et moteur comportant une telle buse |
FR2892452A1 (fr) * | 2005-10-26 | 2007-04-27 | Peugeot Citroen Automobiles Sa | Chambre de combustion pour moteur a injection directe et moteur comportant ladite chambre |
DE102006062008A1 (de) * | 2006-12-29 | 2008-07-03 | Robert Bosch Gmbh | Vorrichtung für Hochdruckanwendungen |
DE102007051408A1 (de) | 2007-10-25 | 2009-05-28 | Prelatec Gmbh | Verfahren zum Bohren von Löchern definierter Geometrien mittels Laserstrahlung |
DE102008041676A1 (de) * | 2008-08-29 | 2010-03-04 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
EP2187043A1 (de) * | 2008-11-14 | 2010-05-19 | Delphi Technologies Holding S.à.r.l. | Einspritzdüse |
DE102008055069A1 (de) | 2008-12-22 | 2010-07-01 | Robert Bosch Gmbh | Kraftstoffeinspritzventil für Brennkraftmaschinen |
WO2010121767A1 (de) * | 2009-04-20 | 2010-10-28 | Prelatec Gmbh | Düse mit mindestens einem spritzloch zum zerstäuben von fluiden |
CN103032232B (zh) * | 2011-10-10 | 2015-11-04 | 中国科学院力学研究所 | 一种发动机燃油喷嘴 |
US9151259B2 (en) * | 2012-06-11 | 2015-10-06 | Continental Automotive Systems, Inc. | Stepped orifice hole |
CN104919174A (zh) * | 2013-01-11 | 2015-09-16 | Kw技术有限两合公司 | 用于将液体喷洒到操作室内的装置 |
DE102014225394A1 (de) * | 2014-12-10 | 2016-06-16 | Continental Automotive Gmbh | Düsenkörper und Fluid-Einspritzventil |
CN105275698B (zh) * | 2015-11-13 | 2017-11-10 | 吉林大学 | 一种发动机用变频喷油嘴 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6049262U (ja) * | 1983-09-14 | 1985-04-06 | 日産自動車株式会社 | デイ−ゼル機関用燃料噴射弁 |
JPH0612106B2 (ja) * | 1986-09-25 | 1994-02-16 | いすゞ自動車株式会社 | 噴射ノズル構造 |
GB8817774D0 (en) | 1988-07-26 | 1988-09-01 | Lucas Ind Plc | Fuel injectors for i c engines |
JPH01300055A (ja) * | 1988-05-27 | 1989-12-04 | Hitachi Ltd | 燃料噴射弁 |
SU1740756A1 (ru) * | 1989-11-14 | 1992-06-15 | Д.В.Нечипоренко | Распылитель форсунки дизел |
JPH05231271A (ja) * | 1992-02-26 | 1993-09-07 | Isuzu Motors Ltd | 燃料噴射ノズル |
JPH10331747A (ja) * | 1997-06-02 | 1998-12-15 | Denso Corp | 燃料噴射ノズルおよびその製造方法 |
JP2001182641A (ja) * | 1999-12-24 | 2001-07-06 | Denso Corp | 燃料噴射ノズルおよびその製造方法 |
DE10105674A1 (de) * | 2001-02-08 | 2002-08-29 | Siemens Ag | Kraftstoffeinspritzdüse für eine Brennkraftmaschine |
-
2003
- 2003-04-08 DE DE2003115967 patent/DE10315967A1/de not_active Withdrawn
-
2004
- 2004-01-23 DE DE502004007360T patent/DE502004007360D1/de not_active Expired - Lifetime
- 2004-01-23 WO PCT/DE2004/000101 patent/WO2004092576A1/de active IP Right Grant
- 2004-01-23 EP EP04704544A patent/EP1623108B1/de not_active Expired - Lifetime
- 2004-01-23 JP JP2006504224A patent/JP2006522887A/ja active Pending
- 2004-01-23 CN CN 200480009315 patent/CN1771390A/zh active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2004092576A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE10315967A1 (de) | 2004-10-21 |
CN1771390A (zh) | 2006-05-10 |
DE502004007360D1 (de) | 2008-07-24 |
EP1623108B1 (de) | 2008-06-11 |
WO2004092576A1 (de) | 2004-10-28 |
JP2006522887A (ja) | 2006-10-05 |
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