EP2606218A1 - Antriebsvorrichtung für ein einspritzventil und einspritzventil - Google Patents
Antriebsvorrichtung für ein einspritzventil und einspritzventilInfo
- Publication number
- EP2606218A1 EP2606218A1 EP11745770.5A EP11745770A EP2606218A1 EP 2606218 A1 EP2606218 A1 EP 2606218A1 EP 11745770 A EP11745770 A EP 11745770A EP 2606218 A1 EP2606218 A1 EP 2606218A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact region
- transmission element
- drive device
- actuator
- force
- 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.)
- Granted
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
- 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
- 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
- F02M2200/701—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger mechanical
-
- 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
- F02M2200/701—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger mechanical
- F02M2200/702—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger mechanical with actuator and actuated element moving in different directions, e.g. in opposite directions
Definitions
- the invention relates to a drive device for an injection valve, comprising an actuator, a lever device, an output element and a transmission element. Furthermore, be ⁇ the invention meets an injection valve.
- the object of the invention is to provide a drive device for an injection valve, which operates permanently reliable. Furthermore, the object of the invention to provide an injection valve with a drive device that allows a reliable metering of fluid.
- the invention is characterized by a drive device for an injection valve, which has an actuator, a lever device
- the actuator is configured to apply a force along a first force action axis.
- the lever device is mechanically coupled to the actuator.
- the output element is mechanically coupled to the lever ⁇ device and adapted to receive a force from the lever device along a second force action axis.
- the second force action axis is arranged offset to the first force action axis.
- the transmission element is arranged between the actuator and the lever ⁇ device.
- the transmission element is coupled to the actuator in a first contact region and to the lever device in a second contact region.
- the first contact region of the transmission element is arranged such that it is penetrated by the first force action axis.
- the second contact area of the transmission element is arranged at ⁇ that it is penetrated by the second force effect axis by ⁇ .
- the transmission element is in the first contact region and / or formed convexly curved in the second contact region. This has the advantage that the first contact area or the second contact area is very small ⁇ out can be. The friction and the wear on the drive device can be very small, since the convexly curved surfaces of the transmission element allow a rolling Ab ⁇ roll. Furthermore, angular deviations of the force axes can be compensated.
- the transmission element in the first contact region and / or in the second contact region is formed substantially hemispherical. This has the advantage that the contact areas can be very small.
- the transmission element in the first contact region and / or in the second contact region is formed substantially hemispherical with a radius significantly smaller than half the distance between the first contact region and the second contact region. This has the advantage that the contact areas can be very small.
- the transmission element in the first contact region and / or in the second contact region is formed substantially as a spherical cap.
- the spherical segment has ei ⁇ NEN radius which is greater than half the distance between the first contact area and the second contact region. This has the advantage that high contact forces can be transmitted permanently.
- the transmission element is pin-shaped madebil- det. This has the advantage that the transmission element can have a low mass.
- the invention is characterized by an injection valve having a drive device according to the first aspect.
- FIG. 1 shows a sectional view of an injection valve
- FIG. 2 shows a schematic illustration of a first embodiment of a drive device of the injection valve
- FIG. 3 shows a detailed view of the drive device according to FIG. 2,
- Figure 4 is a schematic representation of another embodiment of the drive device.
- FIG. 5 shows a detailed view of the drive device according to FIG. 4.
- FIG. 1 shows an injection valve 10.
- the injection valve 10 has an eccentric body 14.
- In ektoroasa 14 is preferably formed in several parts and has a first recess 16 from ⁇ .
- the first recess 16 is not one shown high pressure circuit of the fluid coupled. It is coupled in a built-in state of the injection valve 10 to the high-pressure circuit.
- In ektoroasa 14 has a second recess 20 in which an actuator 22 is arranged.
- the actuator 22 is designed as a lifting actuator and is preferably a piezoactuator, which comprises a stack of piezoelectric elements. The piezoactuator changes its axial extent depending on an applied voltage signal.
- the actuator 22 can also be embodied as another actuator known to the person skilled in the art as suitable for this purpose, in particular as a solenoid.
- the actuator 22 has a piston 24.
- the actuator 22 acts via the piston 24 on a lever device 26 a.
- the lever device 26 comprises a bell-shaped body 28 and lever elements 30.
- the bell-shaped body 28 and the lever ⁇ elements 30 are arranged in the first recess 16.
- the bell-shaped body 28 is coupled to the lever members 30.
- In the first recess 16 is a further
- Output element 32 is arranged.
- the output element 32 is preferably designed as a nozzle needle. In alternative embodiments , the output element 32 is designed as a separate component that is coupled to the nozzle needle.
- the trained as a nozzle needle output member 32 has ei ⁇ nen nozzle needle head 34.
- the lever elements 30 interact with the nozzle needle head 34 for the axial movement of the
- a nozzle spring 36 is disposed between a support 42 of the
- Injector body 14 and a shoulder 44 of the output member 32 is arranged.
- Output element 32 is provided by means of the nozzle spring 36 so that it prevents fluid flow in at least one injection opening 40 disposed in the body 14 in a closed position when no further forces act on the driven element 32.
- this is designed as a nozzle needle
- Output member 32 is moved from its closed position to an open position, in which it releases the fluid flow through the Minim ⁇ least one injection opening 40th Figures 2 to 5 show a drive device 50 of the injection valve 10 in detail.
- the drive device 50 has the actuator 22, the bell-shaped body 28, the lever members 30, the output member 32 and a transmission ⁇ element 52.
- the transmission element 52 is arranged between the actuator 22 and the lever device 26.
- the bell-shaped body 28 is coupled via the transmission element 52 with the actuator 22.
- the transmission element 52 is pin-shaped, so that it can have a low mass.
- the transfer element 52 may also have other suitable shapes in further embodiments.
- the actuator 22 can exert a force along a first force action axis L_l.
- the lever device 26 with the bell-shaped body 28 and the lever elements 30 can exert a force on the shaft along a second force-action axis L_2
- the second force action axis L_2 is arranged offset to the first force action axis L_l.
- the transmission element 52 is coupled to the actuator 22 in a first contact region K_1, which is cut by the first force action axis L_l.
- the transmission element 52 is further in a second contact region K_2, which is cut by the second force action axis L_2, with the Lever device 26, in particular the bell-shaped body 28 is coupled. Since the second force action axis L_2 is arranged offset to the first force action axis L_l, the transmission element 52 is inclined relative to the force action axes L_l, L_2.
- the force exerted by the actuator 22 along the first force action axis L_l force can be transmitted to the bell-shaped body 28 of the lever device 26 via the first contact area K_l and the second contact area K_2.
- the force from the actuator 22 is directed at the bell-shaped body 28 of the lever device 26 at a first angle PHI_1 relative to the force action axis L_l of the actuator 22. From the bell-shaped body 28, the force can then be conducted further along the second force-action axis L_ 2 to the output element 32.
- FIGS. 2 and 3 show a first embodiment of the drive device 50, in which the transmission element 52 is essentially hemispherical in the first contact region K_1 and in the second contact region K_2, preferably with a radius that is significantly smaller than half Distance between the first contact area K_l and the second contact area K_2 is. This results in the inclination of the transmission element 52 with respect to the first force action axis L_l a second angle PHI_2, which is greater than the first angle PHI_1 ( Figure 3).
- the transmission element 52 in the first contact region K_l and in the second contact region K_2 is formed kugelkalottenförmig.
- the spherical cap has a radius R, which in the embodiment shown here Form is greater than half the distance between the first contact area K_l and the second contact area K_2.
- the transmission element 52 is inclined at the second angle PHI_2 with respect to the first force action axis L_l of the actuator 22. Since the radius R of the spherical cap is greater than half the distance between the first contact region K_l and the second contact region K_2, the transmission element 52 in this embodiment is tilted against the axis of force transmission between the first contact region K_l and the second contact region K_2.
- the angle 52 can ge ⁇ geninate the first force action axis L_L be very small PHI_2 the inclination of the transfer member.
- the angle PHI_2 the inclination of the transfer member 52 ge ⁇ geninate the first force effect L_L axis of the actuator 22 can be smaller, the larger the radius R of the spherical cap is.
- the invention is not limited to the specified personssbei ⁇ games.
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
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010039478A DE102010039478A1 (de) | 2010-08-18 | 2010-08-18 | Antriebsvorrichtung für ein Einspritzventil und Einspritzventil |
| PCT/EP2011/064111 WO2012022752A1 (de) | 2010-08-18 | 2011-08-16 | Antriebsvorrichtung für ein einspritzventil und einspritzventil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2606218A1 true EP2606218A1 (de) | 2013-06-26 |
| EP2606218B1 EP2606218B1 (de) | 2015-11-11 |
Family
ID=44543226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11745770.5A Not-in-force EP2606218B1 (de) | 2010-08-18 | 2011-08-16 | Antriebsvorrichtung für ein einspritzventil und einspritzventil |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9447760B2 (de) |
| EP (1) | EP2606218B1 (de) |
| DE (1) | DE102010039478A1 (de) |
| WO (1) | WO2012022752A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010039478A1 (de) | 2010-08-18 | 2012-02-23 | Continental Automotive Gmbh | Antriebsvorrichtung für ein Einspritzventil und Einspritzventil |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10101799A1 (de) | 2001-01-17 | 2002-07-18 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
| WO2002086982A1 (de) * | 2001-04-20 | 2002-10-31 | Siemens Aktiengesellschaft | Vorrichtung zum übertragen einer auslenkung eines aktors und verfahren zu seiner herstellung |
| US6595436B2 (en) * | 2001-05-08 | 2003-07-22 | Cummins Engine Company, Inc. | Proportional needle control injector |
| DE10326707B3 (de) * | 2003-06-11 | 2005-01-27 | Westport Germany Gmbh | Ventilvorrichtung und Verfahren zum Einblasen von gasförmigem Kraftstoff |
| DE102004044154A1 (de) * | 2004-09-13 | 2006-03-30 | Siemens Ag | Hebelvorrichtung und Einspritzventil |
| DE102006058351B3 (de) | 2006-12-11 | 2008-07-03 | Siemens Ag | Verfahren zur Herstellung eines Spulenkörpers, Verfahren zur Herstellung eines Solenoids, Solenoid und Einspritzsystem mit einem solchen Solenoid |
| DE102007036571B3 (de) | 2007-08-03 | 2009-04-02 | Continental Automotive Gmbh | Injektor und Vorrichtung mit einem Gefäß und einem das Gefäß umschließenden Gehäuse |
| DE102010039478A1 (de) | 2010-08-18 | 2012-02-23 | Continental Automotive Gmbh | Antriebsvorrichtung für ein Einspritzventil und Einspritzventil |
-
2010
- 2010-08-18 DE DE102010039478A patent/DE102010039478A1/de not_active Withdrawn
-
2011
- 2011-08-16 US US13/817,498 patent/US9447760B2/en not_active Expired - Fee Related
- 2011-08-16 WO PCT/EP2011/064111 patent/WO2012022752A1/de not_active Ceased
- 2011-08-16 EP EP11745770.5A patent/EP2606218B1/de not_active Not-in-force
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012022752A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012022752A1 (de) | 2012-02-23 |
| DE102010039478A1 (de) | 2012-02-23 |
| US20130153678A1 (en) | 2013-06-20 |
| EP2606218B1 (de) | 2015-11-11 |
| US9447760B2 (en) | 2016-09-20 |
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