CN203719474U - Waste gas cooler - Google Patents
Waste gas cooler Download PDFInfo
- Publication number
- CN203719474U CN203719474U CN201290000407.9U CN201290000407U CN203719474U CN 203719474 U CN203719474 U CN 203719474U CN 201290000407 U CN201290000407 U CN 201290000407U CN 203719474 U CN203719474 U CN 203719474U
- Authority
- CN
- China
- Prior art keywords
- gaseous effluent
- insert
- inserts
- pipe
- waste gas
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
- F02M26/32—Liquid-cooled heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
- F28F3/027—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/06—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being attachable to the element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/02—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model relates to a waste gas cooler (1) for an internal combustion engine, particularly for an internal combustion engine of a motor vehicle. The waste gas cooler comprises a tube bundle (3) in which waste gas (2) or a coolant flows. At least two inserts (5) for prompting heat exchange are arranged in at least one tube (4), and are arranged in a way of axially deviating relative to each other and rotating relative to each other. Therefore, particle deposition reducing the efficiency of the waste gas cooler (1) can be prevented.
Description
Technical field
The utility model relate to a kind of for internal combustion engine the gaseous effluent in particular for internal combustion engine of motor vehicle.
Background technology
In order to meet more and more stricter emission limit, there is long time by EGR processings of burn, reduce whereby temperature and speed that oxygen concentration in cylinder reduction are burnt.By reducing the ignition temperature in cylinder, can reduce NOx and lead and discharge NOx.For strengthening this effect, gaseous effluent is more and more applied, and by gaseous effluent, for the temperature of the waste gas that circulates, in a kind of specific mode, is lowered.
DE2813747A1 discloses a kind of heat exchanger thin plate for rib-loop Tube Sheet of Heat Exchanger, it is for acting on first fluid gas on described heat exchanger thin plate and the heat exchange of Tube Sheet of Heat Exchanger second fluid, wherein there is multirow tie point for heat exchanger thin plate is connected to Tube Sheet of Heat Exchanger, be also provided with a plurality of grooves that extend between described row.
DE3018978A1 discloses a kind of vortex generator that is arranged on pipe heat exchanger inside, and it comprises the hurricane band that at least one extends continuously.Wherein a part forms projection along the plane of extend through helical axis, and it is of similar shape and size arranged apart from each other along helical axis, and wherein, each projection is asymmetric with respect to the vertical line of helical axis.
Other heat exchangers are also known, for example the disclosed heat exchanger of DE102005051709A1, EP0275813A1 and US7337831B2.
The shortcoming of heat exchanger of the prior art or gaseous effluent is, although there is relatively high cooling effect, will produce so-called dirt, pollution, obstruction and carbon distribution in some cases, and accumulation is on each cooling solid, therefore, gaseous effluent or efficiency of heat exchanger day and night worsen.In addition,, if gaseous effluent well known in the prior art is designed to so-called tube bank cooler, the production of these coolers will relative complex and cost costliness so.
Summary of the invention
Therefore, the purpose of this utility model is to provide a kind of improved gaseous effluent, it is characterized in that having the cooling effect of long-term raising.
This purpose obtains according to the theme of independent claims of the present utility model, the theme that favourable embodiment is dependent claims.
The utility model is based on a kind of like this basic conception, at one for internal combustion engine of motor vehicle, be designed to restrain in the gaseous effluent of cooler, there is the tube bank of a waste gas goods coolant flow, in at least one pipe, be provided with at least two for promoting the insert of heat exchange, described insert is arranged to toward each other axial dipole field, aligned with each other or relatively rotate with respect to each other.Insert has increased heat exchange area and has improved thus the cooling effect of gaseous effluent, and wherein the installation of relatively short insert is for example, than the installation of insert of the prior art (insert extending along pipe total length) obvious simpler.Gaseous effluent of the present utility model is not only produced simply, cost is low, but also has obviously improved cooling effect due to insert of the present utility model (insert).In addition, due to axial dipole field and rotatable arrangement, can effectively affect the pollution of gaseous effluent, thus can Avoids or reduces insert or inside pipe wall on pollutant accumulation, can guarantee thus long-term optimal heat exchange.By by each insert relativity shift and relatively turnable layout, can improve the turbulent flow in each pipe, reduce whereby organic matter (cigarette ash/condensation of hydrocarbons) accumulation on insert.Contrary with expectation, if there is described pollutant accumulation, the turbulent flow increasing in pipe can be removed pollution layer easily, thus, to a certain extent, produces the automatically cleaning effect of gaseous effluent.Therefore, gaseous effluent is characterised in that the optimization by insert (insert) affects pollution, power density and the pressure loss effectively.
In a favourable improved technical scheme of the present utility model, preferably all insert configuration are identical at least two inserts.Thus, insert can a kind of cost effectively mode produce, and only need be trimmed to vertically desired length, wherein, because the structure of all inserts or at least two inserts is identical, therefore can reduce kind and consequent storage and the logistics cost of different parts.
In the favourable embodiment of another one of the present utility model, at least one insert comprises that at least one is for generation of turbulent winglet and/or thorn-like opening.Winglet and thorn-like opening can cause deflect flow in pipe turbulization thus, therefore, can promote, along the flowing and improve thus heat exchange effect of heat exchange surface (being insert surface and tube-surface), can also avoid/reduce pollutant accumulation.The turbulent flow being produced by winglet and/or thorn-like opening, except reducing the risk of pollutant accumulation, contrary in the situation that, when accumulation forms, has increased the probability that again removes pollutant accumulation in automatically cleaning mode.Certainly, in this regard, winglet also can form grid rib or thorn rib.For grid rib, some sections are protruded from rib surface, cause the intersection between each rib layer to be mixed.In this regard, the layout of the size (highly, width, position, aperture position) of projection and projection is especially all different towards or away from the layout of pipe.Thorn rib is also to produce with similar method, the geometry of definition thorn separately (width, highly, protrusion angle, quantity and position) wherein, and desired performance can be adjusted and optimize in each case.Here, the material of all inserts and the density of winglet/rib can be not identical.Preferred material is stainless steel, aluminium or non-ferrous metal.The scope of its middle rib density can be every decimeter of 10 to 120 ribs.
Aptly, at least one insert is gluing, welding, welding or is riveted on corresponding pipe.Certainly, gaseous effluent also can be designed to the common heat exchanger with tube bank, first medium flows in described tube bank, wherein, in order to improve heat exchange efficiency, at least two inserts that are separated from each other are set at least one pipe of tube bank, and described insert is arranged to be offset toward each other and can relatively rotate.
Other key characters of the present utility model and advantage applies are in additional claim, accompanying drawing and corresponding accompanying drawing explanation.
Should be appreciated that, above-mentioned feature and the feature the following describes not only can be for the combinations of mentioning, can also be for other combinations or use separately and do not depart from scope of the present utility model.
Preferred embodiment of the present utility model illustrates in the accompanying drawings, and explains in more detail in the following description, and wherein, identical Reference numeral represents parts identical, similar or that function is identical.
Accompanying drawing explanation
Fig. 1 shows gaseous effluent of the present utility model.
Fig. 2 shows the sectional view to pipe that cuts open of gaseous effluent.
Fig. 3 shows the content of Fig. 2, but has rear portion insert.
Fig. 4 a to 4c shows along the profile of the pipe of gaseous effluent, and wherein each accompanying drawing has a different insert.
The specific embodiment
Fig. 1 shows the discarded cooler 1 for internal combustion engine (for example, for internal combustion engine of motor vehicle) of the present utility model, and it comprises the mobile tube bank 3 therein of a hot waste gas 2.Tube bank 3 has a plurality of pipes parallel to each other 4, and cooling medium 8(is cold air for example) along pipe 4 flows outside.In at least one pipe 4, preferably, in all pipes 4, arrange at least two for promoting the insert 5 of heat exchange.Described insert is arranged to axial dipole field toward each other, can relatively rotate (as shown in Fig. 2, Fig. 3 right side) simultaneously.The axial length of insert 5 of the present utility model is between 10mm to 1000mm, and wherein, at least two inserts 5 can relatively rotate 0 degree to 90 degree in pipe 4.By arrangement in relative rotation, not only can obtain turbulent flow and promote thus hot waste gas 2 to flow along heat exchanger surface, and can also reduce less desirable and negative dirt simultaneously.Described dirt causes the pollutant accumulation on pipe 4 inwalls and/or insert 5, has influence on thus the heat exchange of gaseous effluent 1 and final efficiency.
Insert 5 can have smooth surface, as shown in Fig. 2,4a and 4b, also can be provided with for generation of the winglet 6 of turbulent flow or thorn-like opening 7(with reference to Fig. 4 b).Conversely, this wing 6 and opening 7 have promoted again the eddy flow of waste gas 2 in pipe 4, and promote thus heat exchange.
Insert 5 in pipe 4 can be arranged to the mutual butt of front end, also can axially spaced apart from each otherly arrange.The axial spacing of insert 5 and length can be 10mm to 500mm.
With reference to Fig. 4 a and 4c, can find out, the cross section of each insert 5 shown in is here meander-shaped.For insert 5 being fixed on to pipe 4 inside, described insert can be cementing, welding, welding or riveted joint/be clamped to pipe 4.In addition, insert 5 can guarantee that its free end 9 planes are resisted against on the inwall of pipe 4 conventionally, and guarantees thus high efficiency heat exchange.In addition,, if the structure of insert 5 is identical, gaseous effluent of the present utility model can be produced in the effective mode of relative cost.Here, gaseous effluent 1 mainly only represents a kind of embodiment, and the pipe 4 that is furnished with insert 5 so that of the present utility model also can be used in the tube bank 3 of other cooling systems, and for example intercooler, also can be used in chemical industry or field of food.
By insert 5 of the present utility model, not only can improve significantly and increase the power density of gaseous effluent 1, and can affect energetically the generation of pollution, because insert 5 makes biology or mineral grain be difficult to accumulation, and the particle of accumulation is also easy to again clear up.The material of insert 5 or pipe 4 can be for example metal, and preferably stainless steel, aluminium or non-ferrous metal, can certainly expect that other have the material of better heat conductivity.In addition, also can expect coating material (for example, potential residual carbon hydrogen compound oxidation catalysis layer).
Certainly, each insert 5 also can be connected to each other at its front end, preferably cementing, welding or welding.By relatively little insert 5 is inserted to each pipe 4, the production of gaseous effluent 1 of the present utility model can obviously be simplified.
Claims (10)
1. a gaseous effluent (1), it is characterized in that: comprise the mobile tube bank (3) therein of a waste gas (2) or cooling agent, at least two inserts (5) are set at least one pipe (4), be used for promoting heat exchange, described insert is axial dipole field and relatively turnable layout toward each other.
2. gaseous effluent claimed in claim 1, is characterized in that, at least two inserts (5) structure is identical.
3. the gaseous effluent described in claim 1 or 2, is characterized in that, at least two inserts (5) are arranged to relatively rotate with respect to each other 0 ° to 90 °.
4. gaseous effluent claimed in claim 1, is characterized in that, at least one insert (5) has smooth surface or at least one winglet for generation of turbulent flow (6) and/or at least one insert (5) and has thorn-like opening (7).
5. gaseous effluent claimed in claim 1, is characterized in that, at least one insert (5) has the length of 10mm to 1000mm.
6. gaseous effluent claimed in claim 1, is characterized in that, the mutual butt of at least two inserts (5) front end is arranged or layout axially spaced apart from each other.
7. gaseous effluent claimed in claim 6, is characterized in that, at least two inserts (5) 10mm to 500mm axially spaced apart from each other.
8. gaseous effluent claimed in claim 1, is characterized in that, the cross sectional shape of at least one insert (5) is meander-shaped.
9. gaseous effluent claimed in claim 1, is characterized in that, at least one insert (5) is cementing, welding, welding or be riveted on pipe (4).
10. the gaseous effluent (1) as described in claim 1 to 10 any one, is characterized in that, described gaseous effluent (1) is for internal combustion engine.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011006793.0 | 2011-04-05 | ||
| DE102011006793A DE102011006793A1 (en) | 2011-04-05 | 2011-04-05 | exhaust gas cooler |
| PCT/EP2012/056280 WO2012136765A1 (en) | 2011-04-05 | 2012-04-05 | Exhaust gas cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203719474U true CN203719474U (en) | 2014-07-16 |
Family
ID=45974305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201290000407.9U Expired - Fee Related CN203719474U (en) | 2011-04-05 | 2012-04-05 | Waste gas cooler |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2694903A1 (en) |
| CN (1) | CN203719474U (en) |
| DE (1) | DE102011006793A1 (en) |
| WO (1) | WO2012136765A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2019102B1 (en) * | 2017-06-21 | 2019-01-02 | Apex Int Holding B V | Ferrule for a Plate-type Heat Exchanger |
| DE102017218254A1 (en) * | 2017-10-12 | 2019-04-18 | Mahle International Gmbh | Exhaust gas heat exchanger |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA946834A (en) * | 1969-06-18 | 1974-05-07 | Giuliano Rossi | Heat transfer pipes |
| US3664638A (en) * | 1970-02-24 | 1972-05-23 | Kenics Corp | Mixing device |
| HU173583B (en) * | 1976-06-30 | 1979-06-28 | Energiagazdalkodasi Intezet | Device for increasing the heat transfer in heat exchanger tubes |
| US4200149A (en) * | 1976-12-06 | 1980-04-29 | Murray Pechner | Heat exchanger with fluid turbulator |
| DE2813747A1 (en) | 1978-03-30 | 1979-10-04 | Thermal Waerme Kaelte Klima | HEAT EXCHANGER BLADE AND APPLICATIONS OF THE SAME |
| FR2457470A1 (en) | 1979-05-25 | 1980-12-19 | Ferodo Sa | TUBULAR HEAT EXCHANGER AND HELICAL AGITATORS FOR SUCH EXCHANGERS |
| EP0275813B1 (en) | 1986-12-29 | 1991-02-27 | United Technologies Corporation | Heat transfer enhancing device |
| JP2000161872A (en) * | 1998-11-25 | 2000-06-16 | Toyota Motor Corp | Double piping type heat exchanger |
| JP2002054511A (en) * | 2000-08-14 | 2002-02-20 | Hino Motors Ltd | Egr cooler |
| JP4115390B2 (en) | 2001-08-10 | 2008-07-09 | よこはまティーエルオー株式会社 | Heat transfer device |
| US6962193B2 (en) * | 2002-04-09 | 2005-11-08 | Honeywell Interntaional Inc. | Tubular catalytic aircraft precooler |
| EP1555503A2 (en) * | 2004-01-13 | 2005-07-20 | Behr GmbH & Co. KG | Heat exchange flat tube, more especially for condenser |
| JP2006105577A (en) * | 2004-09-08 | 2006-04-20 | Usui Kokusai Sangyo Kaisha Ltd | Fin structure, heat-transfer tube having the fin structure housed therein, and heat exchanger having the heat-transfer tube assembled therein |
| DE102005051709A1 (en) | 2005-10-28 | 2007-05-03 | Albert Handtmann Metallgusswerk Gmbh & Co. Kg | Exhaust gas cooler for motor vehicle, has extruded aluminum sheath combining media guide of hot medium in channel and cooling medium in other channel in sheath, where channel size is provided for cooling medium between outer and inner walls |
| DE102008014169A1 (en) * | 2007-04-26 | 2009-01-08 | Behr Gmbh & Co. Kg | Heat exchanger, in particular for exhaust gas cooling, system with a heat exchanger for exhaust gas cooling, method for operating a heat exchanger |
-
2011
- 2011-04-05 DE DE102011006793A patent/DE102011006793A1/en not_active Withdrawn
-
2012
- 2012-04-05 EP EP12714652.0A patent/EP2694903A1/en not_active Withdrawn
- 2012-04-05 CN CN201290000407.9U patent/CN203719474U/en not_active Expired - Fee Related
- 2012-04-05 WO PCT/EP2012/056280 patent/WO2012136765A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012136765A1 (en) | 2012-10-11 |
| EP2694903A1 (en) | 2014-02-12 |
| DE102011006793A1 (en) | 2012-10-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20180405 |