EP2470757A1 - Steuerventil - Google Patents
SteuerventilInfo
- Publication number
- EP2470757A1 EP2470757A1 EP10742794A EP10742794A EP2470757A1 EP 2470757 A1 EP2470757 A1 EP 2470757A1 EP 10742794 A EP10742794 A EP 10742794A EP 10742794 A EP10742794 A EP 10742794A EP 2470757 A1 EP2470757 A1 EP 2470757A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve housing
- valve
- ring
- control
- control valve
- 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
- 238000002485 combustion reaction Methods 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34436—Features or method for avoiding malfunction due to foreign matters in oil
- F01L2001/3444—Oil filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2303/00—Manufacturing of components used in valve arrangements
Definitions
- the invention relates to a control valve for a device for variably adjusting the timing of gas exchange valves of an internal combustion engine with a substantially hollow cylindrical valve housing a control piston and a retaining ring, wherein the valve housing is arranged in a receptacle within the device, wherein the retaining ring, the valve housing Projected in the radial direction and wherein the control piston is slidably disposed within the valve housing.
- devices for variably adjusting the timing of gas exchange valves are used to make the phase relation between crankshaft and camshaft variable within a defined angular range, between a maximum early and a maximum retarded position.
- the device is non-rotatably connected to a camshaft and has a plurality of pressure chambers by means of which by pressure medium supply, or -abschreib a phase relation between the crankshaft and the camshaft can be selectively changed.
- the pressure medium supply to and the pressure medium discharge from the pressure chambers is controlled by means of a control valve.
- a device and a control valve are known for example from DE 102 11 468 A1.
- the device comprises an output element, which is arranged rotatably to a drive element and rotatably connected to a camshaft.
- the drive element is in drive connection with a crankshaft.
- a plurality of oppositely acting pressure chambers are provided by means of which the phase position of the output element relative to the drive element can be selectively adjusted within a defined angular range.
- a targeted rotation of the camshaft can be effected relative to the crankshaft.
- the device is designed in vane type. But other types are known, such as Axialkolbenversteller from DE 42 18 082 A1.
- the camshaft is supported by a plurality of camshaft bearing in a cylinder head of the internal combustion engine. Via one of the camshaft bearing, a pressure medium channel formed in the camshaft pressure medium is supplied, which can be passed via a control valve which is arranged in a receptacle of the camshaft in the pressure chambers.
- the control valve consists of a valve housing and an axially slidably received in the valve housing control piston.
- the control piston can be positioned by means of an electromagnetic actuator against the force of a spring element in the axial direction relative to the valve housing and thus the pressure medium flows are controlled.
- the present invention has for its object to provide a control valve, the assembly cost to be reduced. Summary of the invention
- the object is achieved in that on an inner circumferential surface of the receptacle an annular groove is formed, into which the retaining ring can engage, wherein the retaining ring rests against an axial side surface of the valve housing and wherein at least a positive locking element is formed on the valve housing, by means of which the retaining ring is attached to the valve housing.
- the molding Closing element on the axial side surface of the valve housing, against which the retaining ring is formed.
- the circlip is used to attach the control valve in the receptacle, which may be formed for example within the camshaft or the inner rotor.
- the control valve is thus positioned radially inside the device.
- the locking ring is designed as an elastically deformable component, which can be elastically compressed and enlarged in the radial direction, so that its diameter can be reduced and increased under the action of force from the idle state. If the force fails, the retaining ring returns to its original state.
- the diameter of the securing ring is compressed when entering the receptacle by the wall in the radial direction. If the circlip arrives in the region of the annular groove of the receptacle, it engages in the annular groove. At the same time, this is in the axial direction of the valve housing, for example on an axial side surface of the valve housing, so that the axial position of the valve housing and thus of the control valve is fixed in the receptacle.
- control valve including retaining ring can be delivered as an assembly to the assembly line.
- assembly of the control valve in the receptacle only one assembly must be mounted and not two separate components. In addition, it is ensured that the circlip is installed during assembly.
- the mounting of the locking ring on the valve housing is effected in that the securing ring is first bent elastically in the radial direction enlarging the diameter and inserted into the hook. Subsequently, the force, which has led to the increase in the diameter, terminated and the retaining ring returns to its original state, so that it is captive absorbed in the hook.
- the retaining ring has a radially inwardly extending portion which serves as an axial stop for the control piston.
- FIG. 1 shows very schematically an internal combustion engine
- FIG. 2 shows a longitudinal section through a device for the variable adjustment of the timing of gas exchange valves of an internal combustion engine with a control valve according to the invention
- Figure 3 shows a cross section through the device of Figure 2 along the
- FIG. 4 shows an enlarged view of FIG. 2, with only the camshaft and the control valve being shown, and the sectional plane being tilted by 45 ° in the circumferential direction,
- FIG. 5 the control valve from FIG. 4 in an exploded view
- Figure 6 is a plan view of the control valve along the arrow VI in FIG.
- FIG. 7 shows a further embodiment according to the invention of a control valve in a representation analogous to FIG. 4.
- FIG. 1 shows an internal combustion engine 1 is sketched, wherein a seated on a crankshaft 2 piston 3 is indicated in a cylinder 4.
- the crankshaft 2 is in the illustrated embodiment via a respective traction drive 5 with an intake camshaft 6 and exhaust camshaft 7 in combination, with a first and a second device 11 for variably setting the timing of gas exchange valves 9, 10 of an internal combustion engine 1 for a relative rotation between the crankshaft 2 and the camshafts 6, 7 can provide.
- Cams 8 of the camshafts 6, 7 actuate one or more Abgasgas crisp- valves 9 or one or more Auslassgas cateringventile 10.
- FIGS 2 and 3 show a device 11 in the longitudinal or in the cross section, in Figure 2 in addition a camshaft 6, 7 and a control valve 12 according to the invention are shown.
- the device 11 comprises a drive element 14 and an output element 16.
- the drive element 14 consists of a housing 15 and two lateral drive elements. Deckein 17, 18, which are arranged on the axial side surfaces of the housing 15 and secured by screws thereto.
- the driven element 16 is designed in the form of an impeller and has a substantially cylindrical hub element 19, from the outer cylindrical surface of which, in the illustrated embodiment, five vanes 20 extend outward in the radial direction.
- projections 22 extend radially inwardly.
- the projections 22 and the wings 20 are integrally formed with the peripheral wall 21 and the hub member 19, respectively.
- the wings 20 and / or the projections 22 are formed as separately manufactured components, which are subsequently mounted on the corresponding component.
- the drive element 14 is mounted by means of radially inner circumferential walls of the projections 22 relative to the output member 16 rotatably mounted thereon.
- a sprocket 23 is formed, via which by means of a chain drive, not shown, torque can be transmitted from the crankshaft 2 to the drive member 14.
- the output member 16 has a central opening 13 which is penetrated by the camshaft 6,7. In this case, the output element 16 by means of a press fit rotationally fixed to the camshaft 6, 7 attached.
- a pressure space 28 is formed between two respective circumferentially adjacent projections 22.
- Each of the pressure chambers 28 is circumferentially bounded by opposing, substantially radially extending boundary walls of adjacent projections 22, in the axial direction of the side covers 17, 18, radially inwardly of the hub member 19 and radially outwardly of the peripheral wall 21.
- a wing 20 In each of the pressure chambers 28 projects a wing 20, wherein the wings 20 are formed such that they rest against both the side covers 17, 18, and on the peripheral wall 21.
- Each wing 20 thus divides the respective pressure chamber 28 into two counteracting pressure chambers 29, 30th
- the phase position of the drive element 14 to the output element 16 and thus the phase angle of the camshaft 6, 7 to the crankshaft 2 can be varied.
- the phase position can be kept constant.
- FIG. 4 shows the control valve 12 within the camshaft 6, 7 in an enlarged view.
- the control valve 12 has a substantially hollow-cylindrical valve housing 34, a cylindrical sleeve 35 and a substantially hollow cylindrical control piston 36.
- a radial inlet port P On the valve housing 34, a radial inlet port P, two radial working ports A, B and an axial discharge port T are formed.
- the drain port T is formed as an axial opening on the valve housing 34.
- the working ports A, B are formed as radial openings on the lateral surface of the valve housing 34, wherein each of the working ports A, B communicates via formed in the driven element 16 pressure fluid channels 46 with a group of pressure chambers 29, 30.
- the inlet port P is also formed as a radial opening on the lateral surface of the valve housing 34, which is arranged in the circumferential direction offset from the working ports A, B and formed as a slot ( Figure 5).
- the inlet port P extends in the axial direction up to a check valve receptacle 32, which communicates via an axial opening, not shown, with the interior of the camshaft 6, 7.
- a spring plate 33 is arranged, which is biased against the axial opening, not shown, so that a check valve is realized, which allows a flow of pressure medium from the camshaft 6, 7 to the inlet port P and a contrary set pressure means uss locks.
- a cup-shaped filter element 47 is attached to the valve housing 34.
- the valve housing 34 is disposed within the camshaft 6, 7, wherein its axial position is determined by a formed on the inner circumferential surface of the camshaft 6, 7 and the outer circumferential surface of the valve housing 34 shoulder and a locking ring 42.
- the locking ring 42 projects beyond the valve housing 34 in the radial direction, is arranged in an annular groove 44, which is formed on the inner lateral surface of the camshaft 6, 7, and bears against an axial side surface 43 of the valve housing 34.
- the sleeve 35 is arranged, whose outer diameter is adapted to the inner diameter of the valve housing 34.
- the sleeve 35 has a plurality of openings 37, each of the openings 37 communicating with one of the working ports A, B or the inlet port P.
- control piston 36 Within the sleeve 35, the control piston 36 is received axially displaceable.
- the control piston 36 has two control sections 38 whose outer diameter is adapted to the inner diameter of the sleeve 35. Between the control sections 38 there is provided a groove 39 running around the control piston 36 in a ring shape.
- the control piston 36 can be positioned against the force of a spring element 40 in the axial direction relative to the valve housing 34 by means of an electromagnetic actuating unit, not shown, which acts on the end of the control piston 36 facing away from the camshaft 6, 7.
- the spring element 40 is arranged in a spring receptacle 41 formed on the valve housing 34 and is supported on the spring receptacle 41 on the one hand and on the control piston 36 on the other hand.
- the path of the control piston 36 in the axial direction on the one hand by the spring seat 41 and on the other hand by radially inwardly extending portions 45 of the securing ring 42 is limited ( Figure 4-6).
- control edges are formed on the control sections 38 of the control piston 36 and the openings 37 of the sleeve 35, by means of which the pressure medium flows are controlled.
- pressure medium is supplied to the interior of the camshaft 6, 7 via camshaft openings 48 by a pressure medium pump, not shown.
- the pressure medium passes through the filter element 47, via the axial opening, not shown, in the valve housing 34 and the spring plate 33 to the inlet port P and from there into an annular space bounded by the formed on the control piston 36 groove 39 and the sleeve 35.
- the pressure medium to the first or the second pressure chambers 29, 30 is passed.
- pressure medium from the other pressure chambers 29, 30 via the drain port T to a pressure fluid reservoir of the internal combustion engine, not shown 1.
- the electromagnetic actuating unit displaces the control piston 36 into a neutral position in which pressure medium is supplied to both groups of pressure chambers 29, 30 so that the relative phase position is kept constant.
- each of the interlocking elements 49 On the axial side surface 43 on which the locking ring 42 abuts two circumferentially spaced hook-shaped form-locking elements 49 are formed, which are designed to be open radially outward.
- Each of the interlocking elements 49 starting from the side surface 43, initially extends in the axial direction and has an adjoining radial section 50.
- the interlocking elements 49 engage behind the locking ring 42 in the axial direction, so that it is captively received between the axial side surface 43 and the radial portions 50.
- the slotted securing ring 42 is elastically bent by means of a force directed in the circumferential direction and positioned on the side surface 43. Subsequently, the force is terminated, so that the retaining ring 42 assumes its original shape of smaller diameter again and thus fixed to the valve housing 34. Due to the radially inwardly extending portions 45, both the sleeve 35 and the control piston 36 and thus the spring element 40 are captively received in the valve housing 34, so that the entire control valve 12 can be delivered as an assembly to the assembly line without a Loss of components is to be feared.
- the control valve 12 is inserted into this until the shoulder of the valve housing 34 on the shoulder of the camshaft 6, 7 comes to rest.
- the securing ring 42 is elastically compressed when it enters the camshaft 6, 7.
- the securing ring 42 widens and engages automatically in this, so that the axial position of the control valve 12 is fixed within the camshaft 6, 7.
- an advantage of the invention in the plug-in construction control valve 12 is that this can be delivered as a module to the assembly line without loss of any of the components control piston 36, spring element 40, retaining ring 42, Sleeve 35 is to be feared.
- FIG. 7 shows a further embodiment of a control valve 12 according to the invention analogous to the representation in FIG. 4.
- the fastening of the securing ring 42 to the valve housing 34 is realized by means of a clip connection.
- the securing ring 42 has a passage opening 51, which is penetrated by an axially extending, barbed positive-locking element 49, which is formed on the valve housing 34.
- valve housing 34 may be formed in one or more parts.
- valve housings 34 which consist of several axially extending- the subsections are formed with open ends facing each other in the circumferential direction, a positive locking element 49 is preferably formed on each of the subsections, so that the subsections are likewise secured relative to one another by the securing ring 42.
- the valve housing 34 may be made for example of steel, aluminum or plastic.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009039385A DE102009039385A1 (de) | 2009-08-29 | 2009-08-29 | Steuerventil |
| PCT/EP2010/061009 WO2011023488A1 (de) | 2009-08-29 | 2010-07-29 | Steuerventil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2470757A1 true EP2470757A1 (de) | 2012-07-04 |
| EP2470757B1 EP2470757B1 (de) | 2013-07-24 |
Family
ID=42931803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10742794.0A Not-in-force EP2470757B1 (de) | 2009-08-29 | 2010-07-29 | Steuerventil |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8567360B2 (de) |
| EP (1) | EP2470757B1 (de) |
| CN (1) | CN102482957B (de) |
| BR (1) | BR112012004446A8 (de) |
| DE (1) | DE102009039385A1 (de) |
| WO (1) | WO2011023488A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011003556B4 (de) | 2011-02-03 | 2022-03-24 | Schaeffler Technologies AG & Co. KG | Vorrichtung zur Veränderung der relativen Winkellage einer Nockenwelle gegenüber einer Kurbelwelle einer Brennkraftmaschine |
| DE102012208809B4 (de) | 2012-05-25 | 2020-11-26 | Schaeffler Technologies AG & Co. KG | Steuerventil eines Nockenwellenverstellers |
| DE102012208812B4 (de) * | 2012-05-25 | 2018-02-01 | Schaeffler Technologies AG & Co. KG | Steuerventil eines Nockenwellenverstellers |
| WO2013174563A1 (de) * | 2012-05-25 | 2013-11-28 | Schaeffler Technologies AG & Co. KG | Steuerventil eines nockenwellenverstellers |
| DE102012220626A1 (de) | 2012-11-13 | 2014-05-15 | Schaeffler Technologies Gmbh & Co. Kg | Steuerventil für eine hydraulische Vorrichtung mit Verriegelung |
| DE102012220830B4 (de) | 2012-11-15 | 2018-01-18 | Schaeffler Technologies AG & Co. KG | Steuerventil für eine hydraulische Vorrichtung mit einer austauschbaren Hydraulikeinheit |
| DE102013200399B4 (de) | 2013-01-14 | 2024-08-01 | Schaeffler Technologies AG & Co. KG | Zentralschraube mit einem Ventil für einen Nockenwellenversteller |
| DE102014201562A1 (de) * | 2014-01-29 | 2015-07-30 | Schaeffler Technologies AG & Co. KG | Steuerventil für einen Nockenwellenversteller |
| GB201512687D0 (en) * | 2015-07-20 | 2015-08-26 | Delphi Automotive Systems Lux | Valve |
| JP7820196B2 (ja) * | 2022-03-10 | 2026-02-25 | 株式会社ミクニ | 流体制御弁ユニット及びバルブタイミング変更装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5207462A (en) * | 1990-11-02 | 1993-05-04 | Proprietary Technology, Inc. | Apparatus and method for a push assemble retaining ring |
| DE4218082C5 (de) * | 1992-06-01 | 2006-06-29 | Schaeffler Kg | Vorrichtung zur kontinuierlichen Winkelverstellung zwischen zwei in Antriebsverbindung stehenden Wellen |
| DE10211468A1 (de) | 2002-03-15 | 2003-09-25 | Daimler Chrysler Ag | Nockenwellenversteller für eine Brennkraftmaschine |
| DE102005052481A1 (de) * | 2005-11-03 | 2007-05-24 | Schaeffler Kg | Steuerventil für eine Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
| DE102006002993A1 (de) * | 2006-01-21 | 2007-08-09 | Schaeffler Kg | Nockenwellenversteller für eine Brennkraftmaschine |
| DE102008006179A1 (de) * | 2008-01-26 | 2009-07-30 | Schaeffler Kg | Steuerventil für eine Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen in Brennkraftmaschinen |
-
2009
- 2009-08-29 DE DE102009039385A patent/DE102009039385A1/de not_active Withdrawn
-
2010
- 2010-07-29 US US13/392,212 patent/US8567360B2/en not_active Expired - Fee Related
- 2010-07-29 WO PCT/EP2010/061009 patent/WO2011023488A1/de not_active Ceased
- 2010-07-29 BR BR112012004446A patent/BR112012004446A8/pt not_active Application Discontinuation
- 2010-07-29 CN CN201080038508.0A patent/CN102482957B/zh not_active Expired - Fee Related
- 2010-07-29 EP EP10742794.0A patent/EP2470757B1/de not_active Not-in-force
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011023488A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102482957A (zh) | 2012-05-30 |
| US20120152189A1 (en) | 2012-06-21 |
| EP2470757B1 (de) | 2013-07-24 |
| DE102009039385A1 (de) | 2011-03-03 |
| BR112012004446A8 (pt) | 2017-12-19 |
| BR112012004446A2 (pt) | 2016-03-22 |
| US8567360B2 (en) | 2013-10-29 |
| WO2011023488A1 (de) | 2011-03-03 |
| CN102482957B (zh) | 2014-10-29 |
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