EP1607619A3 - Fuel injector - Google Patents
Fuel injector Download PDFInfo
- Publication number
- EP1607619A3 EP1607619A3 EP05103114A EP05103114A EP1607619A3 EP 1607619 A3 EP1607619 A3 EP 1607619A3 EP 05103114 A EP05103114 A EP 05103114A EP 05103114 A EP05103114 A EP 05103114A EP 1607619 A3 EP1607619 A3 EP 1607619A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- transmission device
- power transmission
- valve needle
- actuator
- fuel injector
- 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.)
- Ceased
Links
- 239000000446 fuel Substances 0.000 title abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 4
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
-
- 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
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
-
- 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
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
- F02M2200/708—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with hydraulic chambers formed by a movable sleeve
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
Eine Kraftstoffeinspritzvorrichtung (1) mit einer direkt gesteuerten Ventilnadel (10), die in Abhängigkeit von ihrer Stellung eine Einspritzöffnung (10) zum Einspritzen von Kraftstoff in einen Brennraum öffnet oder schließt, wobei zum Betätigen der Ventilnadel (10) ein elektrisch betriebener Aktor (30) einerseits mit der Ventilnadel (10) über eine Kraftübertragungsvorrichtung gekoppelt ist und andererseits in der Vorrichtung fest verankert ist, ist dadurch gekennzeichnet, dass das mit der Kraftübertragungsvorrichtung gekoppelte Element des Aktors (30) der Kraftübertragungsvorrichtung abgewandt ist, und das in der Vorrichtung fest verankerte Element des Aktors (30) der Kraftübertragungsvorrichtung zugewandt ist.A fuel injector (1) having a directly controlled valve needle (10) which opens or closes an injection port (10) for injecting fuel into a combustion chamber depending on its position, wherein an electrically driven actuator (30) operates to actuate the valve needle (10) ) is coupled on the one hand with the valve needle (10) via a power transmission device and on the other hand firmly anchored in the device, characterized in that the coupled with the force transmission device element of the actuator (30) is remote from the power transmission device, and firmly anchored in the device Element of the actuator (30) facing the power transmission device.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004028885 | 2004-06-15 | ||
DE200410028885 DE102004028885A1 (en) | 2004-06-15 | 2004-06-15 | Fuel injection valve |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1607619A2 EP1607619A2 (en) | 2005-12-21 |
EP1607619A3 true EP1607619A3 (en) | 2008-08-27 |
Family
ID=34980100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05103114A Ceased EP1607619A3 (en) | 2004-06-15 | 2005-04-19 | Fuel injector |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1607619A3 (en) |
DE (1) | DE102004028885A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103133205B (en) * | 2013-03-14 | 2014-11-26 | 天津大学 | Two-channel piezoelectric oil ejector |
DE102017116367A1 (en) * | 2017-07-20 | 2019-01-24 | Liebherr-Components Deggendorf Gmbh | Device for controlling an injector |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4101076A (en) * | 1975-04-03 | 1978-07-18 | Teledyne Industries, Inc. | Piezoelectric fuel injector valve |
DE19843535A1 (en) * | 1998-09-23 | 2000-03-30 | Bosch Gmbh Robert | Fuel injector |
DE19915210A1 (en) * | 1999-04-03 | 2000-10-05 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engine, with actuator acting via needle carrier on valve needle |
DE19947779A1 (en) * | 1999-10-02 | 2001-04-12 | Bosch Gmbh Robert | Fuel injector |
-
2004
- 2004-06-15 DE DE200410028885 patent/DE102004028885A1/en not_active Withdrawn
-
2005
- 2005-04-19 EP EP05103114A patent/EP1607619A3/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4101076A (en) * | 1975-04-03 | 1978-07-18 | Teledyne Industries, Inc. | Piezoelectric fuel injector valve |
DE19843535A1 (en) * | 1998-09-23 | 2000-03-30 | Bosch Gmbh Robert | Fuel injector |
DE19915210A1 (en) * | 1999-04-03 | 2000-10-05 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engine, with actuator acting via needle carrier on valve needle |
DE19947779A1 (en) * | 1999-10-02 | 2001-04-12 | Bosch Gmbh Robert | Fuel injector |
Also Published As
Publication number | Publication date |
---|---|
EP1607619A2 (en) | 2005-12-21 |
DE102004028885A1 (en) | 2006-01-05 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20090227 |
|
AKX | Designation fees paid |
Designated state(s): DE FR GB IT |
|
17Q | First examination report despatched |
Effective date: 20090824 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20100212 |