WO2011157258A1 - Hydraulisches element - Google Patents
Hydraulisches element Download PDFInfo
- Publication number
- WO2011157258A1 WO2011157258A1 PCT/DE2011/001136 DE2011001136W WO2011157258A1 WO 2011157258 A1 WO2011157258 A1 WO 2011157258A1 DE 2011001136 W DE2011001136 W DE 2011001136W WO 2011157258 A1 WO2011157258 A1 WO 2011157258A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydraulic
- master cylinder
- valve
- housing
- valve head
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/008—Reduction of noise or vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
- F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0215—Control by fluid pressure for damping of pulsations within the fluid system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0227—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices
- F16D2048/023—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices by pedal actuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
- F16D2048/0263—Passive valves between pressure source and actuating cylinder, e.g. check valves or throttle valves
Definitions
- the invention relates to a hydraulic element, in particular for arrangement in a pressure line between a master cylinder and a slave cylinder hydraulic clutch operation, with a housing having a master cylinder side hydraulic connection and a slave cylinder side hydraulic connection and a valve assembly with two Ventilkörpem flying in the Housing are mounted and can be moved relative to each other against the force of a spring receives, wherein in the housing on the side of the master cylinder, a closure element is provided which forms a stop for a valve head of the master cylinder side valve body arranged.
- a so-called Ventilkribbelfilter which comprises a valve assembly having two valve bodies, which are mounted in a floating housing and can be moved against the force of a spring relative to each other comprises.
- the hydraulic element comprises only a few parts, making it simple and inexpensive to manufacture while providing a good reduction in damping of pressure oscillations transmitted from the slave cylinder side to the master cylinder side.
- the Kribbelfilter described above has proven itself in practice quite well. However, it is desirable for certain applications to achieve a further reduction of the transmission of the pressure oscillations from the slave cylinder side to the master cylinder side.
- a hydraulic element in particular for arrangement in a pressure line between a master cylinder and a slave cylinder hydraulic clutch operation, with a housing having a master cylinder side hydraulic port and a slave cylinder side hydraulic port and which receives a valve assembly with two valve bodies, the flying in are mounted on the housing and can be moved against the force of a spring relative to each other, wherein in the housing on the side of the master cylinder, a closure element is provided which forms a stop for a valve head of the master cylinder side valve body, characterized in that a damping device between the Valve head and the closure element is arranged.
- the basic idea of the present invention is thus to further improve the damping of the hydraulic element, in that pressure vibrations transmitted from the slave cylinder side to the master cylinder-side valve body undergo damping by the damping element.
- the transmission of pressure vibrations to the master cylinder side valve body depends essentially on the size of a game between the valve bodies, which is required by the displacement of the valve body to each other.
- a game reduction of the valve body is associated with a complex production, whereas the filter according to the invention is inexpensive to manufacture.
- the damping device may be designed as a sealing ring, in particular as an O-ring, which forms a radial contact surface for the valve head.
- a sealing ring in particular as an O-ring, which forms a radial contact surface for the valve head.
- the sealing ring can be arranged in an edge region between the housing and the closure element and form a seal between the inner wall of the housing and an outer wall of the closure element.
- This arrangement prevents leakage of fluid, usually a hydraulic fluid, between the radially outer edge of the valve head and the housing when the valve head.
- the closure element on its side facing the valve head on a radial recess for receiving the sealing ring.
- the sealing ring can be axially positioned on the closure element and introduced with this in the housing to allow easy installation.
- the cross-section of the receptacle may increase in the direction of the valve head on its inner side and / or taper on its outer side.
- the sealing ring is securely fixed to the closure element, so that it can not slip out of the recess even under load due to contact with the valve head of the master cylinder-side valve body.
- a reliable fixation of the sealing ring can be achieved by enlarging the cross section on the inside of the recess.
- the damping device may be designed as a source seal, which swells in contact with a fluid. This facilitates the mounting of the damping device, since it assumes its required shape for operation only in contact with the fluid.
- the master cylinder side valve body may have a first passage forming a slave cylinder side communication passage to the source gasket, and the closure member having a second passage forming a connecting passage from the master cylinder side to the source gasket, wherein the swelling gasket in the swollen state forms a seal between forms the first and the second passage.
- the passages form a connecting channel from the slave cylinder side to the master cylinder side, which is automatically closed after filling with the fluid.
- the housing can be reliably evacuated prior to use from one side to prevent air pockets during subsequent filling with the fluid.
- the play between the master cylinder side and the slave cylinder side valve body which usually allows a leakage required for the evacuation of the housing, can be reduced in order to further improve the damping characteristics of the valve assembly.
- the first passage can be designed as an axial groove on the outside of the valve head of the master cylinder-side valve body.
- the groove is easy to mold and serves to adjust a transition of fluid from the master cylinder side to the slave cylinder side when the valve head is pushed out of the closure member by a high hydraulic pressure on the master cylinder side.
- a desired transition can be reduced by a clearance between the radially outer edge of the valve head and the inside of the housing in order to improve the movement of the compression cylinder-side valve body in the housing.
- the second passage may be designed as a radial groove on the valve head side facing the closure element.
- the closure element is designed as a press-in cone, so that it can be easily mounted in the housing.
- the hydraulic element can be realized with a small size.
- Figure 1 is a schematic representation of a hydraulic system for actuating a vehicle clutch
- Figure 2 shows an embodiment of a damping filter according to the invention in
- FIG. 1 shows, as an example of a hydraulic power transmission system, a hydraulic clutch actuator 1 for a motor vehicle.
- the hydraulic clutch actuator 1 summarizes in a conventional manner a master cylinder 2, which is hydraulically connected via a hydraulic pressure line 3 with a slave cylinder 4.
- the slave cylinder 4 may for example be designed as an annular slave cylinder, as a so-called Gottausscher, wherein in an annular cylinder housing an annular slave cylinder piston 5 is mounted.
- the annular slave cylinder 4 and the annular slave cylinder piston 5 include a turn annular pressure chamber 16 a.
- a plate spring 7 is actuated via a release bearing 6 in a conventional manner.
- the plate spring 7 is used to actuate a vehicle clutch 17.
- This includes a pressure plate 8, a counter-pressure plate 9 and a clutch disc 10.
- the plate spring 7 is biased so that it presses a pressure plate 8 in the biasing direction 8 on a counter-pressure plate 9, while a clutch disc 10, the rotatably connected to a transmission input shaft is clamped between pressure plate 8 and counter pressure plate 9.
- the pressure plate 8 and the counter-pressure plate 9 are rotatably connected to a crankshaft of an internal combustion engine, not shown here.
- the master cylinder 2 comprises a master cylinder piston 11, which is actuated by means of a clutch pedal 12 via a push rod 13.
- the housing of the master cylinder 2 and the transmitter cylinder piston 11 arranged movably therein enclose a pressure chamber 15.
- a follow-up tank 14 is in a pressureless system, while the master cylinder piston 11 is its most pulled out of the master cylinder 2 position, hydraulically connected to the pressure chamber 15.
- the hydraulic clutch actuator 1 according to FIG. 1 is known per se. Instead of a central release as a slave cylinder 4, other hydraulic release can be used here, for example, a lever disengaging, which cooperates with a slave cylinder. Likewise, instead of an actuation of the master cylinder 2 with a clutch pedal 12, an electrical actuator or the like may be provided. The clutch can also instead of being closed by applying force to the plate spring 7 as a result of application of force to be closed (actively pressed clutch). The design of the master cylinder 2 and the slave cylinder 4 and also the clutch can therefore be arbitrary. The embodiment shown above is just one of many ways
- FIG. 2 shows a damping filter 18 according to the invention in longitudinal section.
- the damping filter 18 comprises a substantially rotationally symmetrical housing 19 which on one side comprises a hydraulic plug 20 for connecting the damping filter 18 to a hydraulic bushing of the pressure line 3 according to FIG.
- the plug 20 forms a slave cylinder-side hydraulic connection.
- a bushing 21 is formed, which forms a master cylinder side hydraulic connection for connecting the damping filter 18 with a hydraulic plug of the pressure line 3 according to FIG.
- plug 20 and socket 21 may also be interchanged with each other or both terminals may be formed as a plug 20 or socket 21, respectively.
- the plug 20 and the socket 21 may belong to a similar hydraulic connector. In this case, one could connect the plug 20 of a damping filter 18 to the socket 21 of another damping filter 18.
- plug 20 and socket 21 may also belong to different types of hydraulic plug connections.
- the housing 19 includes in its center a hollow cylindrical portion 22, which merges on the slave cylinder side via a conical bottom portion 23 in the plug 20 and on the other side via a conical portion 24 in the socket 21.
- the plug 20 has a first through-bore 25 and the bushing 21 has a second through-bore 26, each of which extends into the hollow-cylindrical region 22.
- a closure member 27 is provided, which is designed as a press-in cone.
- the closure element 27 has an axial passage 28 which has an enlarged cross-section at its end 29 facing the bush 21 in relation to the other, inner end 30.
- the closure element 27 is designed with a radial recess 31 into which an O-ring 32 is inserted as a sealing ring.
- the recess 31 is provided at the radially outer end of the closure member 27 and its cross-section increases toward its inner end 30, whereby the O-ring 32 in the recess 31 undergoes a tight fit.
- the sealing ring 32 is designed as a source seal, which swells in contact with a fluid, whereby the sealing ring 32 has a smaller size during assembly and reaches its desired size only in contact with the fluid.
- the inner end surface 33 of the closure element 27 has a radial groove 34, which forms a connection from the recess 31 to the axial passage 28.
- the valve assembly 35 includes a slave cylinder-side valve body 36, in the further outer valve body, and a master cylinder-side valve body 37, in the further inner valve body, which are cantilevered in the housing 19.
- the outer valve body 36 comprises a substantially cup-shaped valve cup 38 having an outer diameter D2, which has a blind bore 39 with an inner diameter d2.
- the valve cup 38 passes at its cup bottom side into a valve head 40.
- the valve head 40 has an outer diameter D3, which forms a clearance with the inner diameter of the hollow cylindrical portion 22.
- the valve head 40 has, in an outer region, a passage 41, which is visible in FIG. 2, and forms a fluid connection from the first through-bore 25 to the hollow-cylindrical region 22.
- the inner valve body 37 includes a tubular portion 42 having an outer diameter that mates with the inner diameter d2 of the valve cup 38.
- the inner valve body 37 has an axial blind hole 43 and a valve head 44, which is formed on the encoder cylinder end of the inner valve body 37 and rests against the inside of the housing 19.
- the valve head 44 has an outer diameter D3 which forms a clearance with the inner diameter of the hollow cylindrical portion 22.
- an axial groove 45 is formed, which extends over the entire length of the valve head 44.
- the tubular portion 42 is encompassed by the valve cup 38 and slidably mounted therein in the axial direction.
- an engagement groove 46 in which a tongue 47 formed on the outer valve body 36 and extending inside the valve cup 38 substantially parallel to the side walls thereof engages.
- the tongue 47 causes together with the engagement groove 46 a rotation of the two valve body 36, 37 against each other.
- the valve cup 38 of the outer valve body 36 has a communication bore 48, the tubular portion 42 of the inner valve body 37 has a communication bore 49. If the connecting bores 48, 49 at least partially overlap, then the first through-bore 25 is hydraulically connected to the second through-bore 26. Between the valve head 44 of the inner valve body 36 and an annular projection 50 which is provided on the outer side of the outer valve body encoder cylinder side of the connecting bore 48, a spring 51 is arranged, which presses apart the inner valve body 37 and the outer valve body 36.
- the outer diameter of the annular protrusion 50 is selected to be a clearance fit with the inner diameter of the hollow cylindrical portion 22.
- the housing of the damping filter 18 is first evacuated to avoid air bubbles in the hydraulic fluid. Air pockets would affect the function of the entire hydraulic clutch actuator 1. For this purpose, the air is sucked off, wherein the gap between the valve bodies 36, 37 forms a passage between the master cylinder side and the slave cylinder side.
- the sealing ring 32 is not swollen and thus releases the connecting channel.
- valve bodies 36, 37 are usually in the position shown in Figure 2, since no large pressures on the valve body 36, 37 act. Accordingly, the through holes 48, 49 do not overlap, and the hydraulic fluid passes through the gap between the valve bodies 36, 37 and the axial groove 45, the radial groove 34 and the recess 31 from the master cylinder side to the slave cylinder side and vice versa. As a result of the contact with the fluid, the sealing ring 32 swells and forms a closure between the axial groove 45 and the radial groove 34, as shown in the lower region of FIG. In this state, the attenuation filter 18 is operated further.
- fluid may flow into the first through-bore 25 from the second through-bore 26 via the axial passage 28, the blind-hole axial bore 43, the communication holes 48 and 49, the exposed portion of the hollow cylindrical portion 22, and the passage 43.
- the outer valve body 36 is moved counter to the arrow 52, so that the communication hole 48 and 49 - depending on the pressure difference on the master and slave cylinder side and the spring force of the spring 51 - overlap or at least partially overlap and release the flow.
- the connecting bores 48 and 49 can therefore be brought into coincidence with one another in both directions of flow depending on the relative position of the valve bodies 36, 37.
- slave cylinder side valve body (outer valve body) master cylinder side valve body (inner valve body) valve cup
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112011102579.3T DE112011102579B4 (de) | 2010-06-17 | 2011-05-30 | Hydraulisches Element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010024163.6 | 2010-06-17 | ||
DE102010024163 | 2010-06-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011157258A1 true WO2011157258A1 (de) | 2011-12-22 |
WO2011157258A8 WO2011157258A8 (de) | 2012-03-29 |
Family
ID=44511809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2011/001136 WO2011157258A1 (de) | 2010-06-17 | 2011-05-30 | Hydraulisches element |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102011102881A1 (de) |
WO (1) | WO2011157258A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015207793B4 (de) * | 2015-04-28 | 2019-08-01 | Schaeffler Technologies AG & Co. KG | Drosseleinheit zum Drosseln von Fluid in einer hydraulischen Strecke einer hydraulisch betätigbaren Kupplung |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2721640A (en) * | 1952-01-04 | 1955-10-25 | Curtiss Wright Corp | Device for controlling the rate of increase of a fluid pressure |
US4294278A (en) * | 1979-12-14 | 1981-10-13 | Caterpillar Tractor Co. | Pressure modulating valve |
GB2217816A (en) * | 1988-04-29 | 1989-11-01 | Danfoss As | Temperature-responsive valves |
JPH0366925A (ja) * | 1989-08-01 | 1991-03-22 | Nippon Air Brake Co Ltd | 脈動緩衝装置 |
EP1798125A1 (de) * | 2005-12-17 | 2007-06-20 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Kolbenstangenanbindung |
DE102008044819A1 (de) | 2007-09-20 | 2009-04-09 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydraulisches Element |
-
2011
- 2011-05-30 WO PCT/DE2011/001136 patent/WO2011157258A1/de active Application Filing
- 2011-05-30 DE DE102011102881A patent/DE102011102881A1/de not_active Withdrawn
- 2011-05-30 DE DE112011102579.3T patent/DE112011102579B4/de not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2721640A (en) * | 1952-01-04 | 1955-10-25 | Curtiss Wright Corp | Device for controlling the rate of increase of a fluid pressure |
US4294278A (en) * | 1979-12-14 | 1981-10-13 | Caterpillar Tractor Co. | Pressure modulating valve |
GB2217816A (en) * | 1988-04-29 | 1989-11-01 | Danfoss As | Temperature-responsive valves |
JPH0366925A (ja) * | 1989-08-01 | 1991-03-22 | Nippon Air Brake Co Ltd | 脈動緩衝装置 |
EP1798125A1 (de) * | 2005-12-17 | 2007-06-20 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Kolbenstangenanbindung |
DE102008044819A1 (de) | 2007-09-20 | 2009-04-09 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydraulisches Element |
Also Published As
Publication number | Publication date |
---|---|
WO2011157258A8 (de) | 2012-03-29 |
DE102011102881A1 (de) | 2011-12-22 |
DE112011102579B4 (de) | 2020-09-03 |
DE112011102579A5 (de) | 2013-05-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3017214B1 (de) | Hydraulische steuerungseinrichtung für ein automatikgetriebe | |
EP2193282B1 (de) | Hydraulisches element | |
DE10351907B4 (de) | Hydraulisches System | |
DE112012004030T5 (de) | Druck haltende Getriebekupplung mit Kugelventil | |
DE112011102182B4 (de) | Hydraulisches Element | |
EP2855943B1 (de) | Geberzylinder | |
DE102015213551A1 (de) | Bremseinrichtung und Bremssystem für ein Kraftfahrzeug | |
DE102015223048A1 (de) | Bremsgerät für eine hydraulische Kraftfahrzeugbremsanlage | |
DE102012104456B3 (de) | Ventilvorrichtung für einen Hydraulikkreislauf sowie Ölpumpenregelanordnung | |
EP2226513B1 (de) | Klemmeinheit, insbesondere zur Verwendung als Formschließeinheit | |
EP1433971B1 (de) | Hydraulisches System | |
WO2015149770A1 (de) | Kupplungsbetätigungsvorrichtung | |
EP1707863B9 (de) | Kupplungsteil einer Druckmittel-Steckkupplung | |
WO2011157258A1 (de) | Hydraulisches element | |
DE102009036438A1 (de) | Dämpfungsfilter für ein hydraulisches System | |
DE102008058674A1 (de) | Hydraulisches Ventil | |
DE102009011814A1 (de) | Hydrauliksystem | |
DE102009021893A1 (de) | Dämpfungsfilter | |
EP3180533A1 (de) | Doppelkupplungsbetätigungseinrichtung | |
WO2024125688A1 (de) | Nehmerzylinder sowie nehmerzylindereinheit mit zwei druckräumen | |
DE102009021351A1 (de) | Nehmerzylinder | |
DE102015204816A1 (de) | Getriebevorrichtung mit wenigstens einem fluidisch betätigbaren Schaltelement | |
DE102021214013A1 (de) | Wegeventil für ein Getriebe eines Kraftfahrzeugs | |
WO2012146337A1 (de) | Hauptbremszylinder für eine fahrzeugbremsanlage | |
DE102018132633A1 (de) | Zentralausrücker zur pneumatischen Betätigung einer Kupplung eines Kraftfahrzeugs und Verfahren zur Montage eines solchen Zentralausrückers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11740817 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1120111025793 Country of ref document: DE Ref document number: 112011102579 Country of ref document: DE |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: R225 Ref document number: 112011102579 Country of ref document: DE Effective date: 20130529 |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 11740817 Country of ref document: EP Kind code of ref document: A1 |