EP1273790A3 - Fuel injector for internal combustion engines - Google Patents
Fuel injector for internal combustion engines Download PDFInfo
- Publication number
- EP1273790A3 EP1273790A3 EP02006852A EP02006852A EP1273790A3 EP 1273790 A3 EP1273790 A3 EP 1273790A3 EP 02006852 A EP02006852 A EP 02006852A EP 02006852 A EP02006852 A EP 02006852A EP 1273790 A3 EP1273790 A3 EP 1273790A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- housing
- combustion engines
- piston
- 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.)
- Withdrawn
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
- 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
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
- F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for 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
- 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
- F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
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
Kraftstoffeinspritzventil für Brennkraftmaschinen mit einem Gehäuse (1), in dem eine kolbenförmige Ventilnadel (10) längsverschiebbar angeordnet ist, die durch ihre Längsbewegung mit dem brennraumseitigen Ende wenigstens eine Einspritzöffnung (16) steuert. In einer im Gehäuse (1) ausgebildeten Kolbenbohrung (26) ist ein Ventilkolben (30) angeordnet, der zumindest näherungsweise koaxial zur Ventilnadel (10) längsverschiebbar ist und der unter Zwischenlage eines Druckstücks (32) an der Ventilnadel (10) anliegt. Das Druckstück (32) ist an seiner Außenmantelfläche zylindrisch ausgebildet und ist in einer ortsfest im Gehäuse angeordneten Führungshülse (36) geführt (Fig. 1). Fuel injection valve for internal combustion engines with a housing (1) in which a piston-shaped valve needle (10) is arranged so as to be longitudinally displaceable, which by means of its longitudinal movement controls at least one injection opening (16) with the end on the combustion chamber side. A valve piston (30) is arranged in a piston bore (26) formed in the housing (1) and can be displaced longitudinally at least approximately coaxially with the valve needle (10) and which bears against the valve needle (10) with the interposition of a pressure piece (32). The pressure piece (32) is cylindrical on its outer surface and is guided in a guide sleeve (36) arranged in a stationary manner in the housing (FIG. 1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001132450 DE10132450B4 (en) | 2001-07-04 | 2001-07-04 | Fuel injection valve for internal combustion engines |
DE10132450 | 2001-07-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1273790A2 EP1273790A2 (en) | 2003-01-08 |
EP1273790A3 true EP1273790A3 (en) | 2004-08-18 |
Family
ID=7690605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02006852A Withdrawn EP1273790A3 (en) | 2001-07-04 | 2002-03-26 | Fuel injector for internal combustion engines |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1273790A3 (en) |
JP (1) | JP2003035233A (en) |
DE (1) | DE10132450B4 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1851427B1 (en) * | 2005-02-22 | 2011-05-11 | Continental Automotive Systems US, Inc. | Common rail injector with active needle closing device |
CN104265533B (en) * | 2014-07-31 | 2016-08-24 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | A kind of common-rail injector |
CN104806399B (en) * | 2015-04-03 | 2017-06-06 | 西安交通大学 | The high pressure common rail injector control valve that edge cam rotating servo motor directly drives |
JP6451883B2 (en) * | 2018-02-05 | 2019-01-16 | 株式会社デンソー | Fuel injection valve |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0690223A2 (en) * | 1994-07-01 | 1996-01-03 | ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni | Device for adjusting the travel of a fuel injector shutter |
DE19827267A1 (en) * | 1998-06-18 | 1999-12-23 | Bosch Gmbh Robert | Fuel injection valve for high pressure injection with improved control of the fuel supply |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH494346A (en) * | 1968-07-31 | 1970-07-31 | Sulzer Ag | Electromagnetically controlled fuel injection valve of a reciprocating internal combustion engine |
DE8104272U1 (en) * | 1981-02-17 | 1981-08-06 | Robert Bosch Gmbh, 7000 Stuttgart | FUEL INJECTION NOZZLE |
FR2528914A1 (en) * | 1982-06-18 | 1983-12-23 | Semt | Fuel injector for IC engine - has injection control needle with push rod engaged by closing spring |
DE19946766C2 (en) * | 1999-09-29 | 2001-07-26 | Siemens Ag | Injector for an internal combustion engine with direct injection |
DE10006111A1 (en) * | 2000-02-11 | 2001-08-30 | Bosch Gmbh Robert | Fuel injector |
-
2001
- 2001-07-04 DE DE2001132450 patent/DE10132450B4/en not_active Expired - Fee Related
-
2002
- 2002-03-26 EP EP02006852A patent/EP1273790A3/en not_active Withdrawn
- 2002-07-02 JP JP2002193370A patent/JP2003035233A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0690223A2 (en) * | 1994-07-01 | 1996-01-03 | ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni | Device for adjusting the travel of a fuel injector shutter |
DE19827267A1 (en) * | 1998-06-18 | 1999-12-23 | Bosch Gmbh Robert | Fuel injection valve for high pressure injection with improved control of the fuel supply |
Also Published As
Publication number | Publication date |
---|---|
DE10132450A1 (en) | 2003-01-23 |
EP1273790A2 (en) | 2003-01-08 |
JP2003035233A (en) | 2003-02-07 |
DE10132450B4 (en) | 2010-02-11 |
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Legal Events
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: 7F 02M 61/10 B Ipc: 7F 02M 61/12 B Ipc: 7F 02M 61/20 B Ipc: 7F 02M 47/02 A |
|
AKX | Designation fees paid | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
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DBV | Designated contracting states (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20050219 |