ATE539256T1 - Kraftstoff-injektor mit piezoelektrischem aktuator - Google Patents
Kraftstoff-injektor mit piezoelektrischem aktuatorInfo
- Publication number
- ATE539256T1 ATE539256T1 AT09174557T AT09174557T ATE539256T1 AT E539256 T1 ATE539256 T1 AT E539256T1 AT 09174557 T AT09174557 T AT 09174557T AT 09174557 T AT09174557 T AT 09174557T AT E539256 T1 ATE539256 T1 AT E539256T1
- Authority
- AT
- Austria
- Prior art keywords
- coupler
- piezoelectric actuator
- valve
- fuel injector
- valve seat
- Prior art date
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
- 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
- F02M47/027—Electrically actuated valves draining the chamber to release the 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
- 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
-
- 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
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008055178A DE102008055178A1 (de) | 2008-12-30 | 2008-12-30 | Kraftstoff-Injktor mit piezoelektrischem Aktuator |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE539256T1 true ATE539256T1 (de) | 2012-01-15 |
Family
ID=42110920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT09174557T ATE539256T1 (de) | 2008-12-30 | 2009-10-30 | Kraftstoff-injektor mit piezoelektrischem aktuator |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2204571B1 (de) |
AT (1) | ATE539256T1 (de) |
DE (1) | DE102008055178A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015225744A1 (de) | 2015-12-17 | 2017-06-22 | Robert Bosch Gmbh | Kraftstoffinjektor |
DE102016207647A1 (de) | 2016-05-03 | 2017-11-09 | Robert Bosch Gmbh | Hydraulische Kopplereinrichtung und Kraftstoffinjektor mit einer solchen Kopplereinrichtung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3719468B2 (ja) | 1996-09-02 | 2005-11-24 | 株式会社デンソー | 蓄圧式燃料噴射装置 |
JP4038941B2 (ja) | 1999-08-02 | 2008-01-30 | 株式会社デンソー | ピエゾインジェクタ |
JP2005207323A (ja) * | 2004-01-22 | 2005-08-04 | Denso Corp | 燃料噴射装置 |
US7506825B2 (en) * | 2006-05-31 | 2009-03-24 | Caterpillar Inc. | Fuel injector control system |
-
2008
- 2008-12-30 DE DE102008055178A patent/DE102008055178A1/de not_active Withdrawn
-
2009
- 2009-10-30 EP EP09174557A patent/EP2204571B1/de not_active Not-in-force
- 2009-10-30 AT AT09174557T patent/ATE539256T1/de active
Also Published As
Publication number | Publication date |
---|---|
DE102008055178A1 (de) | 2010-07-01 |
EP2204571B1 (de) | 2011-12-28 |
EP2204571A1 (de) | 2010-07-07 |
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