DE102004060550A1 - fuel Injector - Google Patents
fuel Injector Download PDFInfo
- Publication number
- DE102004060550A1 DE102004060550A1 DE102004060550A DE102004060550A DE102004060550A1 DE 102004060550 A1 DE102004060550 A1 DE 102004060550A1 DE 102004060550 A DE102004060550 A DE 102004060550A DE 102004060550 A DE102004060550 A DE 102004060550A DE 102004060550 A1 DE102004060550 A1 DE 102004060550A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- nozzle
- needle
- fuel injection
- actuator
- 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.)
- Withdrawn
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 34
- 238000002347 injection Methods 0.000 claims abstract description 29
- 239000007924 injection Substances 0.000 claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
- F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
- F02M45/08—Injectors peculiar thereto
- F02M45/086—Having more than one injection-valve controlling 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
- 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
-
- 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
- F02M2200/46—Valves, e.g. injectors, with concentric valve bodies
-
- 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
- F02M2200/705—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with means for filling or emptying hydraulic chamber, e.g. for compensating clearance or thermal expansion
- F02M2200/706—Valves for filling or emptying hydraulic chamber
-
- 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
- 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
- F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Die Erfindung geht aus von einer Kraftstoffeinspritzdüse nach der Gattung des Patentanspruchs 1.The The invention is based on a fuel injection nozzle the genus of claim 1.
Eine
solche, beispielsweise aus der
Die erfindungsgemäße Vorteile der ErfindungThe advantages of the invention the invention
Kraftstoffeinspritzdüse für Brennkraftmaschinen mit den kennzeichnenden Merkmalen des Patentanspruchs 1 hat demgegenüber den Vorteil, dass die Kraftstoffeinspritzdüse einfach und direkt ansteuerbar ist. Durch Verwendung einer direkten Nadelsteuerung können beide Düsennadeln schnell gesteuert geöffnet werden. Vorteil der Erfindung ist ein einfacher Aufbau einer direkten Nadelsteuerung für eine so genannte KVD-Düse.Fuel injection nozzle for internal combustion engines with the characterizing features of claim 1 has the other hand Advantage that the fuel injector easily and directly controlled is. By using a direct needle control both can nozzle needles opened quickly controlled become. Advantage of the invention is a simple construction of a direct Needle control for one so-called KVD nozzle.
Weitere Vorteile und vorteilhafte Ausgestaltungen des Gegenstands der Erfindung sind der Beschreibung, der Zeichnung und den Ansprüchen entnehmbar.Further Advantages and advantageous embodiments of the subject invention are the description, the drawings and the claims removable.
Zeichnungdrawing
Ein Ausführungsbeispiel der erfindungsgemäßen Kraftstoffeinspritzdüse ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Die einzige Figur zeigt die erfindungsgemäße Kraftstoffeinspritzdüse in einem Längsschnitt.One embodiment the fuel injection nozzle according to the invention is in the drawing shown and explained in more detail in the following description. The single figure shows the fuel injection nozzle according to the invention in a longitudinal section.
Beschreibung des Ausführungsbeispielsdescription of the embodiment
Die
in der Figur gezeigte Kraftstoffeinspritzdüse
Im
Düsenkörper
Die
Schließfedern
Die äußere Düsennadel
Die
beiden Düsennadeln
Der
Kolben
Das
Steuerventil
Nachfolgend
wird die Funktionsweise der erfindungsgemäßen Kraftstoffeinspritzdüse
Wenn
der piezoelektrische Stellantrieb
Nach
seinem maximalen Öffnungshub
h1 liegt der Kolben
Zum
Schließen
der Düsennadeln
In
einer anderen, nicht gezeigten Variante der Erfindung ist der Steuerraum
Claims (9)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004060550A DE102004060550A1 (en) | 2004-12-16 | 2004-12-16 | fuel Injector |
DE502005008888T DE502005008888D1 (en) | 2004-12-16 | 2005-11-21 | fuel Injector |
EP05823534A EP1838960B1 (en) | 2004-12-16 | 2005-11-21 | Fuel injection nozzle |
JP2007546007A JP4518516B2 (en) | 2004-12-16 | 2005-11-21 | Fuel injection nozzle |
AT05823534T ATE455241T1 (en) | 2004-12-16 | 2005-11-21 | FUEL INJECTOR |
PCT/EP2005/056091 WO2006063918A1 (en) | 2004-12-16 | 2005-11-21 | Fuel injection nozzle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004060550A DE102004060550A1 (en) | 2004-12-16 | 2004-12-16 | fuel Injector |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004060550A1 true DE102004060550A1 (en) | 2006-07-06 |
Family
ID=35953945
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004060550A Withdrawn DE102004060550A1 (en) | 2004-12-16 | 2004-12-16 | fuel Injector |
DE502005008888T Active DE502005008888D1 (en) | 2004-12-16 | 2005-11-21 | fuel Injector |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE502005008888T Active DE502005008888D1 (en) | 2004-12-16 | 2005-11-21 | fuel Injector |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1838960B1 (en) |
JP (1) | JP4518516B2 (en) |
AT (1) | ATE455241T1 (en) |
DE (2) | DE102004060550A1 (en) |
WO (1) | WO2006063918A1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3846917B2 (en) * | 1995-07-13 | 2006-11-15 | 株式会社デンソー | Fuel injection device |
JP3327787B2 (en) * | 1996-09-25 | 2002-09-24 | 三菱重工業株式会社 | Two-fluid injection valve |
JP3932688B2 (en) * | 1997-08-28 | 2007-06-20 | 株式会社デンソー | Fuel injection device for internal combustion engine |
DE10058153A1 (en) | 2000-11-22 | 2002-06-06 | Bosch Gmbh Robert | Injection nozzle with separately controllable nozzle needles |
DE10246974A1 (en) * | 2002-10-09 | 2004-04-22 | Robert Bosch Gmbh | Fuel injector nozzle for use in internal combustion engine has needle and sleeve separately cutting off fuel flow to inner and outer nozzle bores |
DE10254186A1 (en) * | 2002-11-20 | 2004-06-17 | Siemens Ag | Injector with a directly driven register nozzle needle for fuel injection into an internal combustion engine |
DE10336327B4 (en) * | 2003-08-07 | 2016-03-17 | Robert Bosch Gmbh | Injector for fuel injection systems of internal combustion engines, in particular direct injection diesel engines |
-
2004
- 2004-12-16 DE DE102004060550A patent/DE102004060550A1/en not_active Withdrawn
-
2005
- 2005-11-21 WO PCT/EP2005/056091 patent/WO2006063918A1/en active Application Filing
- 2005-11-21 AT AT05823534T patent/ATE455241T1/en not_active IP Right Cessation
- 2005-11-21 DE DE502005008888T patent/DE502005008888D1/en active Active
- 2005-11-21 EP EP05823534A patent/EP1838960B1/en not_active Not-in-force
- 2005-11-21 JP JP2007546007A patent/JP4518516B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP4518516B2 (en) | 2010-08-04 |
EP1838960B1 (en) | 2010-01-13 |
ATE455241T1 (en) | 2010-01-15 |
EP1838960A1 (en) | 2007-10-03 |
WO2006063918A1 (en) | 2006-06-22 |
JP2008523319A (en) | 2008-07-03 |
DE502005008888D1 (en) | 2010-03-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |