EP1258628A2 - Soupape d'injection de carburant - Google Patents
Soupape d'injection de carburant Download PDFInfo
- Publication number
- EP1258628A2 EP1258628A2 EP02010816A EP02010816A EP1258628A2 EP 1258628 A2 EP1258628 A2 EP 1258628A2 EP 02010816 A EP02010816 A EP 02010816A EP 02010816 A EP02010816 A EP 02010816A EP 1258628 A2 EP1258628 A2 EP 1258628A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel injection
- injection valve
- fuel
- line
- valve according
- 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- Withdrawn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
Images
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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/007—Cleaning
- F02M65/008—Cleaning of injectors only
-
- 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
- F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
- F02M43/04—Injectors peculiar thereto
-
- 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
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
-
- 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
- F02M61/165—Filtering elements specially adapted in fuel inlets to injector
Definitions
- the invention is based on a fuel injector according to the genus of the main claim.
- DE 198 04 463 A1 describes a fuel injection system for a mixture-compressing, spark-ignited Internal combustion engine known which one Fuel injector includes, the fuel into a combustion chamber formed by a piston / cylinder construction injected, and with a protruding into the combustion chamber Spark plug is provided.
- the fuel injector is with at least one row on the scope of the Distributed fuel injector Provide injection holes. Through a targeted injection of fuel through the injection holes becomes one beam-guided combustion process by forming a Mixture cloud realized with at least one beam.
- the fuel injector according to the invention with the has characteristic features of the main claim in contrast the advantage that by means of an auxiliary inlet, parallel to the central fuel supply of the Fuel injector is arranged any Cleaning additives or intensive cleaners both in Hibernation as well as during operation of the Internal combustion engine can be guided to the sealing seat the injection ports of the fuel injector from To clean coking.
- the auxiliary inlet is advantageously on the side of the Fuel injector attached to the cylinder head and connected to its own distribution line leading to a Additional tank for the cleaning additives leads.
- Another advantage is that the from the auxiliary supply to Fuel injector leading line depending on the Conditions either better protected in the cylinder head or easier to lay outside the cylinder head for Fuel injector can be performed.
- the upstream supply line of the cleaning additive is particularly advantageous because it makes the whole Fuel injector cleaned of dirt can be.
- the fuel injector 1 shows an excerpted sectional view Embodiment of an inventive Fuel injector 1.
- the fuel injector 1 is in the form of a fuel injector 1 for Fuel injection systems from mixture-compressing, spark-ignition internal combustion engines.
- the Fuel injector 1 is in a cylinder head 34 an internal combustion engine and is suitable for direct injection of fuel into a combustion chamber Internal combustion engine.
- the fuel injector 1 consists of a Nozzle body 2, in which a valve needle 3 is arranged.
- the valve needle 3 is in operative connection with a Valve closing body 4 with one on one Valve seat body 5 arranged valve seat surface 6 into one Sealing seat interacts.
- a Valve closing body 4 with one on one Valve seat body 5 arranged valve seat surface 6 into one Sealing seat interacts.
- the fuel injector 1 in the exemplary embodiment it is an inward direction opening fuel injector 1, which over several Spray openings 7 has.
- the nozzle body 2 is against one by a seal 8 Sealed outer pole 9 of a magnetic coil 10.
- the solenoid 10 is encapsulated in a coil housing 11 and on one Coil carrier 12 wound, which on an inner pole 13 of the Solenoid coil 10 is present.
- the inner pole 13 and the outer pole 9 are separated from each other by a gap 26 and support itself on a connecting component 29.
- the solenoid 10 is via a line 19 from an electrical Plug contact 17 energized electrical current.
- the Plug contact 17 is from a plastic casing 18 surrounded, which may be molded onto the inner pole 13.
- the valve needle 3 is in a valve needle guide 14 led, which is disc-shaped.
- a paired adjusting disc 15 is used for stroke adjustment the other side of the shim 15 is a Anchor 20.
- This stands over a first flange 21 non-positively in connection with the valve needle 3, which by a weld seam 22 with the first flange 21 connected is.
- One is supported on the first flange 21 Return spring 23, which in the present design of the Fuel injector 1 through a sleeve 24 Bias is brought.
- armature 20 Downstream of armature 20 is a second flange 31 arranged, which serves as the lower anchor stop. He is over a weld 33 with the valve needle 3 connected. Between the armature 20 and the second flange 31 is an elastic intermediate ring 32 for damping Anchor bounces when the fuel injector closes 1 arranged.
- valve needle guide 14 in the armature 20 and on Valve seat body 5 run fuel channels 30a to 30c.
- the fuel is supplied via a central fuel supply 16 fed and filtered by a filter element 25.
- the Fuel injector 1 is against by a seal 28 sealed a distribution line, not shown.
- the armature 20 falls sufficient degradation of the magnetic field by the pressure of the Return spring 23 on the first flange 21 from the inner pole 13 from, whereby the valve needle 3 against the stroke direction emotional. This sets the valve closing body 4 on the Valve seat surface 6 and the fuel injector 1 will be closed.
- the anchor 20 is based on the second flange 31 formed anchor stop.
- fuel injector 1 has one Auxiliary inlet 40 on the side of the Fuel injector 1 arranged on the cylinder head 34 is.
- the auxiliary inlet 40 has a filter 41 in one Inlet connection 42 and is against by a seal 43 sealed a distribution line, not shown.
- the line 44 is in the downstream area of the Fuel injector 1 through the cylinder head 34 the fuel injector 1 is brought up and passes through a passage 45 into an interior 46 of the Fuel injector 1 a.
- the implementation is 45 the downstream of the magnetic circuit in front of the sealing seat arranged.
- Fuel injector 1 by means of the auxiliary inlet 40 be flooded with a cleaning additive, which in a Additional tank, not shown, over the inlet connection 42 to the spray openings 7 of the fuel injector 1 be directed.
- The is in the idle state Internal combustion engine through a unique opening cycle of the Fuel injector 1, the valve needle 3 and the this valve closing body 4 in operative connection Stroke moves and the cleaning additive to the coked spray openings 7 passed.
- the Coking residues can be dissolved and together with the cleaning additive when operating the Internal combustion engine are also burned.
- the inlet connection 42 can also correspond to a second one Alternative of the embodiment using a line 47 with an implementation 48 in the inlet-side part of the Fuel injector 1 may be connected. This leads to the line 47 on the inlet side of the magnetic circuit in the area of Sleeve 24 into the interior 46 of the fuel injector 1 a.
- the advantage of this variant is one easier assembly because the line is not in the cylinder head 34 must be relocated.
- the cleaning process of the spray openings 7 by means of the arrangement described above also during Operation of the internal combustion engine can be performed.
- the action time of the cleaning additive on the Spray openings 7 is an extension of the Opening time by a control unit, not shown Internal combustion engine ensured as this gradually Coking of the spray openings 7 and subsequently sinking Fuel flow extends the opening hours by Flow through the fuel injector 1 constant hold. As soon as the spray openings 7 are cleaned, lowers the control unit the opening times of the Fuel injectors 1 due to the higher Flow again.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10123867 | 2001-05-16 | ||
DE2001123867 DE10123867A1 (de) | 2001-05-16 | 2001-05-16 | Brennstoffeinspritzventil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1258628A2 true EP1258628A2 (fr) | 2002-11-20 |
EP1258628A3 EP1258628A3 (fr) | 2004-12-01 |
Family
ID=7685027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02010816A Withdrawn EP1258628A3 (fr) | 2001-05-16 | 2002-05-15 | Soupape d'injection de carburant |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1258628A3 (fr) |
DE (1) | DE10123867A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005019636A1 (fr) * | 2003-08-18 | 2005-03-03 | Robert Bosch Gmbh | Systeme d'injection de carburant et procede d'injection de carburant |
GB2543826A (en) * | 2015-10-30 | 2017-05-03 | Caterpillar Inc | A fuel injector, a fuel injector assembly and an associated method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19804463A1 (de) | 1998-02-05 | 1999-08-12 | Daimler Chrysler Ag | Kraftstoffeinspritzsystem für Ottomotoren |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57129255A (en) * | 1981-02-04 | 1982-08-11 | Mazda Motor Corp | Fuel injection device for engine with supercharger |
DE3622142C1 (en) * | 1986-07-02 | 1988-02-04 | Daimler Benz Ag | Liquid-cooled injection valve |
US4736712A (en) * | 1986-12-01 | 1988-04-12 | General Electric Company | Self purging dual fuel injector |
US5020484A (en) * | 1989-11-06 | 1991-06-04 | Fuji Jukogyo Kabushiki Kaisha | Lubricating system for a two-cycle engine |
DE19629107C2 (de) * | 1996-07-19 | 1998-08-06 | Mtu Friedrichshafen Gmbh | Vorrichtung zum Einspritzen von Kraftstoff und einem Zusatzfluid in den Brennraum eines Dieselmotors |
DE19915792A1 (de) * | 1999-04-08 | 2000-10-19 | Daimler Chrysler Ag | Kraftstoffzuführsystem für eine Brennkraftmaschine |
-
2001
- 2001-05-16 DE DE2001123867 patent/DE10123867A1/de not_active Ceased
-
2002
- 2002-05-15 EP EP02010816A patent/EP1258628A3/fr not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19804463A1 (de) | 1998-02-05 | 1999-08-12 | Daimler Chrysler Ag | Kraftstoffeinspritzsystem für Ottomotoren |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005019636A1 (fr) * | 2003-08-18 | 2005-03-03 | Robert Bosch Gmbh | Systeme d'injection de carburant et procede d'injection de carburant |
JP2007502930A (ja) * | 2003-08-18 | 2007-02-15 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 燃料噴射装置および燃料を噴射するための方法 |
US7523740B2 (en) | 2003-08-18 | 2009-04-28 | Robert Bosch Gmbh | Fuel-injection system and method for injecting fuel |
GB2543826A (en) * | 2015-10-30 | 2017-05-03 | Caterpillar Inc | A fuel injector, a fuel injector assembly and an associated method |
GB2543826B (en) * | 2015-10-30 | 2019-07-24 | Caterpillar Inc | A fuel injector, a fuel injector assembly and an associated method |
US10851753B2 (en) | 2015-10-30 | 2020-12-01 | Caterpillar Inc. | Fuel injector, a fuel injector assembly and an associated method |
Also Published As
Publication number | Publication date |
---|---|
EP1258628A3 (fr) | 2004-12-01 |
DE10123867A1 (de) | 2002-11-28 |
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