WO2012066517A2 - Energy production plant optimized to be supplied by more than one source of energy - Google Patents

Energy production plant optimized to be supplied by more than one source of energy Download PDF

Info

Publication number
WO2012066517A2
WO2012066517A2 PCT/IB2011/055196 IB2011055196W WO2012066517A2 WO 2012066517 A2 WO2012066517 A2 WO 2012066517A2 IB 2011055196 W IB2011055196 W IB 2011055196W WO 2012066517 A2 WO2012066517 A2 WO 2012066517A2
Authority
WO
WIPO (PCT)
Prior art keywords
energy
mechanical
source
exploitation
plant
Prior art date
Application number
PCT/IB2011/055196
Other languages
French (fr)
Other versions
WO2012066517A3 (en
Inventor
Aldo Giani
Marco Antonio Spina
Fernando Stamerra
Original Assignee
New Renovable Energy Srl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by New Renovable Energy Srl filed Critical New Renovable Energy Srl
Publication of WO2012066517A2 publication Critical patent/WO2012066517A2/en
Publication of WO2012066517A3 publication Critical patent/WO2012066517A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/008—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with water energy converters, e.g. a water turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G5/00—Devices for producing mechanical power from muscle energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present application relates to a plant for the production of energy particularly optimized for being powered by more than one source of energy.
  • present invention is applicable, preferentially but not exclusively, to production of electric energy by means of the exploitation of a discontinuous energy source, for example wind, and of a programmable source of energy, i.e. a source of energy the use in time of which is programmable, to be used in addition or alternatively to said discontinuous energy source.
  • a discontinuous energy source for example wind
  • a programmable source of energy i.e. a source of energy the use in time of which is programmable
  • the plant for the production of energy according to the present invention is also particularly optimized to allow to overcome the problems of size, configuration and space related to installations known in the art.
  • An example is the document AU5039279 which addresses the problem of providing a wind power generator equipped with a means of emergency operation comprising a internal combustion engine, where the wind turbine and the internal combustion engine are alternately connected to the alternator by means of a mechanical transmission, depending on the amount of energy delivered by wind turbine.
  • a further example is the document AU618719, which arises the problem of providing a floating station for the generation of energy, which can be powered by means of a wind turbine and a hydraulic wheel, mechanically connected by means of two centrifugal clutches to the generator .
  • the examples known to the state of the art are limited.
  • the first example cited is in fact limited to the use of an internal combustion engine as an auxiliary source, and the connection of the internal combustion engine to the wind turbine occurs by means of a mechanical transmission which links the position of the auxiliary motor to the immediate vicinity of the wind turbine.
  • the second example cited is a floating plant in which the two energy sources (hydro and wind) are exploited by machines located in the immediate vicinity of each other and mechanically connected to each other.
  • US2007/0024058 describes and claims a system for the production of wind energy that makes use of a hydraulic transmission to transfer the energy produced by wind turbine to a hydraulic motor located at the base of the wind turbine. Is not made mention in US2007/0024058 to the possibility of use of sources of auxiliary energy. Moreover the hydraulic transmission is used to connect the wind turbine to the alternator, with obvious lower yields in the transmission compared to the use of a transmission of the mechanical type.
  • Purpose of the invention object of the present patent application is therefore to provide a plant for the production of electric energy supplied from a renewable discontinuous-primary source and from an auxiliary source of varying nature, use of which is programmable at will by those who operates the plant, which exceeds the limits related to the embodiments known in the art, and in particular which allows to move conveniently and without rigid mechanical constraints the position of the auxiliary energy source, while maintaining the high yields of transmission related to the use of a transmission of the mechanical type when the main energy source is in operation.
  • FIG. 1 a conceptual scheme of the production of electric energy according to the present invention is shown
  • the plant according to the present invention comprises a machine (1) for the production of mechanical energy supplied by the main energy source.
  • this machine may be a wind turbine (101), or according to other modes of realization any machine capable of exploiting a discontinuous (i.e. not programmable) energy source.
  • the plant according to the present invention further comprises means for the exploitation of a second source of mechanical energy.
  • this source of energy can be the power produced from animals appropriately constrained to rotate, walking, a drive shaft.
  • the plant can be optimized for the use of donkeys, mules, horses or cattle in general for the production of energy.
  • the system further comprises means for the mechanical connection of the two sources of energy, properly controlled.
  • Said means comprise preferably a mechanical connection box (30), comprising components adapted to receive mechanical power input from two separate drive shafts (108, 408) respectively fed by the first and second source of energy.
  • the machine (10) for the exploitation of the first energy source is connected by means of a mechanical transmission comprising the drive shaft (108) to the connection box (30).
  • the machine (20) for the exploitation of the second energy source, for use in the auxiliary mode is connected to the mechanical connection box (30) by means of a hydraulic transmission (40) comprising at least one pump (401) driven by the machine ( 20) and a motor (402) which drives the drive shaft (408) connected to the mechanical connection box (30).
  • the hydraulic transmission (40) further comprises a reservoir (406), rigid conduit (409) and flexible conduits (410) to connect the pump (401) to the motor (402).
  • Elements commonly known in the art, such as a hydraulic transmission filter (403), a pressure gauge (404), a pressure relief valve (405) may also be present.
  • the transmission is carried out such as to allow connecting the machine (20) for the exploitation of the second energy source to the mechanical connection box (30) without imposing constraints on the mutual position and the distance between the two.
  • the mechanical connection box (30) is configured so as to supply by means of the output shaft (301) an alternator for the production of electrical energy (50). It 's evident that both in the mechanical connection box (30) and in the alternator (50) control means suitable to stabilize the input power to obtain an electric current produced by the alternator (50 ) of desired quality, and in particular of quality such that they can be fed into the electrical distribution or transmission network are included.
  • Figure 2 shows an optimized system for the exploitation of wind energy, which includes a wind turbine (60) which comprises a rotor (101) connected by means of the mechanical transmission (108 ) to the mechanical connection box (30), contained within the nacelle of the wind turbine (60), which also contains an alternator (50) for electricity production.
  • a wind turbine 60
  • a rotor 101
  • the mechanical connection box 30
  • an alternator 50
  • Mechanical power produced by the hydraulic motor (402) fed, by means of the hydraulic transmission (40), by the auxiliary energy source (20) is connected as input to the mechanical connection box (30).
  • the operation of the plant described is such that the plant produces electric energy by means of the action of the wind (or of another primary energy source) and, simultaneously or alternately, by means of one or more energy sources auxiliary.
  • the auxiliary source of energy is of the programmable type, operate it to continue to produce electricity.
  • the auxiliary energy sources can be constituted by animal, by small water streams, by steam turbines, internal combustion engines or by other sources of energy whose exploitation is known in the art.
  • the system object of the present invention allows the use of a primary power source by connecting it by means of a mechanical transmission to an alternator, thereby maintaining the advantages associated with their high yields of a mechanical transmission.
  • the system also allows to use one or more auxiliary energy sources without the need, for said auxiliary energy sources, to be located near the position of the machine powered by the main energy source (i.e. of the wind turbine (60). This is obtained by means of a hydraulic transmission.
  • This allows to rationalize the spaces, for example allowing the combined use, with a single point of connection to the electric network, of a wind turbine and of a hydraulic turbine driven by a small stream, which are usually placed at distances that do not allow use of a mechanical transmission.
  • the invention object of the present invention allows to ensure best working conditions to the animals, allowing to locate their place of work independently from the position of the wind turbine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Wind Motors (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Saccharide Compounds (AREA)

Abstract

Plant for the production of energy comprising a machine for the exploitation of a main energy source and at least one machine for the exploitation of a source of mechanical power auxiliary characterized in that said machine for the exploitation of a main power source is connected to means for the production of electric energy by means of a mechanical transmission, and said machine for the exploitation of a source of mechanical power is connected to the auxiliary means for the production of electric energy by means of a hydraulic transmission.

Description

DESCRIPTION
The present application relates to a plant for the production of energy particularly optimized for being powered by more than one source of energy.
In particular present invention is applicable, preferentially but not exclusively, to production of electric energy by means of the exploitation of a discontinuous energy source, for example wind, and of a programmable source of energy, i.e. a source of energy the use in time of which is programmable, to be used in addition or alternatively to said discontinuous energy source. The plant for the production of energy according to the present invention is also particularly optimized to allow to overcome the problems of size, configuration and space related to installations known in the art.
In fact are known in the art various systems for the production of energy that make use of a renewable energy source, such as wind energy or hydraulic energy, and a source of auxiliary energy.
An example is the document AU5039279 which addresses the problem of providing a wind power generator equipped with a means of emergency operation comprising a internal combustion engine, where the wind turbine and the internal combustion engine are alternately connected to the alternator by means of a mechanical transmission, depending on the amount of energy delivered by wind turbine. A further example is the document AU618719, which arises the problem of providing a floating station for the generation of energy, which can be powered by means of a wind turbine and a hydraulic wheel, mechanically connected by means of two centrifugal clutches to the generator . The examples known to the state of the art are limited. The first example cited is in fact limited to the use of an internal combustion engine as an auxiliary source, and the connection of the internal combustion engine to the wind turbine occurs by means of a mechanical transmission which links the position of the auxiliary motor to the immediate vicinity of the wind turbine.
The second example cited is a floating plant in which the two energy sources (hydro and wind) are exploited by machines located in the immediate vicinity of each other and mechanically connected to each other.
US2007/0024058 describes and claims a system for the production of wind energy that makes use of a hydraulic transmission to transfer the energy produced by wind turbine to a hydraulic motor located at the base of the wind turbine. Is not made mention in US2007/0024058 to the possibility of use of sources of auxiliary energy. Moreover the hydraulic transmission is used to connect the wind turbine to the alternator, with obvious lower yields in the transmission compared to the use of a transmission of the mechanical type.
The examples known to the state of the technique are limited, as the only two sources of energy auxiliary whose use is dealt with are the fossil source and hydroelectric power; also none of the cited documents addresses the problem of using a source of auxiliary energy positioned arbitrarily in the vicinity of the discontinuous energy source, but not connectable to the same by means of a mechanical transmission.
Purpose of the invention object of the present patent application is therefore to provide a plant for the production of electric energy supplied from a renewable discontinuous-primary source and from an auxiliary source of varying nature, use of which is programmable at will by those who operates the plant, which exceeds the limits related to the embodiments known in the art, and in particular which allows to move conveniently and without rigid mechanical constraints the position of the auxiliary energy source, while maintaining the high yields of transmission related to the use of a transmission of the mechanical type when the main energy source is in operation.
These and other advantages will be apparent from the detailed description of some preferential embodiment of the invention, which will refer to Figures 1 and 2 attached. In figure 1 a conceptual scheme of the production of electric energy according to the present invention is shown
In Figure 2 a preferred embodiment the plant in which the main energy source used is wind power is shown.
As shown in Figure 1 , the plant according to the present invention comprises a machine (1) for the production of mechanical energy supplied by the main energy source. According to a preferred embodiment shown in figure 2 this machine may be a wind turbine (101), or according to other modes of realization any machine capable of exploiting a discontinuous (i.e. not programmable) energy source.
The plant according to the present invention further comprises means for the exploitation of a second source of mechanical energy. According to a preferred embodiment this source of energy can be the power produced from animals appropriately constrained to rotate, walking, a drive shaft. According to a preferred but non limiting embodiment the plant can be optimized for the use of donkeys, mules, horses or cattle in general for the production of energy.
The system further comprises means for the mechanical connection of the two sources of energy, properly controlled. Said means comprise preferably a mechanical connection box (30), comprising components adapted to receive mechanical power input from two separate drive shafts (108, 408) respectively fed by the first and second source of energy. In particular the machine (10) for the exploitation of the first energy source is connected by means of a mechanical transmission comprising the drive shaft (108) to the connection box (30). The machine (20) for the exploitation of the second energy source, for use in the auxiliary mode, is connected to the mechanical connection box (30) by means of a hydraulic transmission (40) comprising at least one pump (401) driven by the machine ( 20) and a motor (402) which drives the drive shaft (408) connected to the mechanical connection box (30).
The hydraulic transmission (40) further comprises a reservoir (406), rigid conduit (409) and flexible conduits (410) to connect the pump (401) to the motor (402). Elements commonly known in the art, such as a hydraulic transmission filter (403), a pressure gauge (404), a pressure relief valve (405) may also be present.
In general, the transmission is carried out such as to allow connecting the machine (20) for the exploitation of the second energy source to the mechanical connection box (30) without imposing constraints on the mutual position and the distance between the two. The mechanical connection box (30) is configured so as to supply by means of the output shaft (301) an alternator for the production of electrical energy (50). It 's evident that both in the mechanical connection box (30) and in the alternator (50) control means suitable to stabilize the input power to obtain an electric current produced by the alternator (50 ) of desired quality, and in particular of quality such that they can be fed into the electrical distribution or transmission network are included.
A preferred embodiment of what has been described is shown in Figure 2, which shows an optimized system for the exploitation of wind energy, which includes a wind turbine (60) which comprises a rotor (101) connected by means of the mechanical transmission (108 ) to the mechanical connection box (30), contained within the nacelle of the wind turbine (60), which also contains an alternator (50) for electricity production. Mechanical power produced by the hydraulic motor (402) fed, by means of the hydraulic transmission (40), by the auxiliary energy source (20) is connected as input to the mechanical connection box (30).
The operation of the plant described is such that the plant produces electric energy by means of the action of the wind (or of another primary energy source) and, simultaneously or alternately, by means of one or more energy sources auxiliary. In particular at the cessation of the wind is possible, if the auxiliary source of energy is of the programmable type, operate it to continue to produce electricity. The auxiliary energy sources can be constituted by animal, by small water streams, by steam turbines, internal combustion engines or by other sources of energy whose exploitation is known in the art.
Obvious it is also possible to connect more than one source of additional power, by suitably dimensioning and configuring the hydraulic transmission (40) by inserting more than one pump in the hydraulic circuit that supplies the motor (402).
In all the embodiments described the system object of the present invention allows the use of a primary power source by connecting it by means of a mechanical transmission to an alternator, thereby maintaining the advantages associated with their high yields of a mechanical transmission. The system also allows to use one or more auxiliary energy sources without the need, for said auxiliary energy sources, to be located near the position of the machine powered by the main energy source (i.e. of the wind turbine (60). This is obtained by means of a hydraulic transmission. This allows to rationalize the spaces, for example allowing the combined use, with a single point of connection to the electric network, of a wind turbine and of a hydraulic turbine driven by a small stream, which are usually placed at distances that do not allow use of a mechanical transmission. In the case of exploitation of the animal force for the production of energy, the invention object of the present invention allows to ensure best working conditions to the animals, allowing to locate their place of work independently from the position of the wind turbine.
What has been described is merely a description of the preferential ways of realization of the plant for energy production defined by the following claims.

Claims

1. Plant for energy production comprising
Means (10) for the exploitation of a primary power source; - Means (20) for the exploitation of at least one auxiliary source of mechanical power;
Means for converting mechanical energy into electrical energy (50) - Mechanical connection means (30) for the mechanical connection of said means for the exploitation of said primary and auxiliary power source (10,20) to said means for converting mechanical energy into electrical energy (50)
characterized in that
said means for the exploitation of a main energy source (10) is connected to said mechanical connecting means (30) by means of a mechanical transmission,
and in that
said Means (20) for the exploitation of at least one auxiliary source of mechanical power is connected to said mechanical connecting means (30) by means of a hydraulic transmission (40).
2. Plant for energy production according to claim 1 characterized in that said connecting means (30) comprise a mechanical connection box equipped with two input shafts (108,408) and an output shaft (301).
3. Plant for energy production according to claim 2 characterized in that said mechanical connection box (30) is configured to be able to actuate the output shaft (301) using the input power supplied from the input shaft (108) , from the input shaft (408) or both.
4. Plant for the production of energy according to one of the preceding claims characterized in that said means (10) for the exploitation of a primary power source comprise a wind turbine for the exploitation of wind energy.
5. Plant for the production of energy according to one of the preceding claims characterized in that said means (20) for the exploitation of at least one auxiliary source of mechanical power comprise one or more of the following sources: the mechanical power produced by animals, hydraulic power produced by watercourses, internal combustion engines, Steam turbines powered by geothermal energy.
6. Plant for the production of energy according to one of the preceding claims characterized in that said hydraulic transmission comprises at least one pump (401) fed by said machine (20) for the exploitation of a source of auxiliary energy, a hydraulic motor (402) which drives the motor shaft (408) connected to the mechanical connection box (30) and sections of rigid hydraulic lines (409) and flexible hydraulic lines (407) for connecting said pump (401) to said motor (402).
PCT/IB2011/055196 2010-11-19 2011-11-19 Energy production plant optimized to be supplied by more than one source of energy WO2012066517A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2010A002140 2010-11-19
ITMI2010A002140A IT1402875B1 (en) 2010-11-19 2010-11-19 PLANT FOR ENERGY GENERATION

Publications (2)

Publication Number Publication Date
WO2012066517A2 true WO2012066517A2 (en) 2012-05-24
WO2012066517A3 WO2012066517A3 (en) 2012-07-19

Family

ID=43742754

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/055196 WO2012066517A2 (en) 2010-11-19 2011-11-19 Energy production plant optimized to be supplied by more than one source of energy

Country Status (2)

Country Link
IT (1) IT1402875B1 (en)
WO (1) WO2012066517A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5039279A (en) 1978-02-23 1981-03-05 Sidney T. Dvorak Generator with alternate power source
AU618719B3 (en) 1991-09-19 1991-11-01 Hiep Viet Tran Floating renewable energy generating station
US20070024058A1 (en) 2005-07-27 2007-02-01 Mcclintic Frank J Methods and apparatus for advanced wind turbine design

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT7809443A0 (en) * 1978-05-02 1978-05-02 Ermini Adone ENERGY STORAGE SYSTEM IN THE FORM OF GAS PRESSURE
AU2002246257A1 (en) * 2001-04-11 2002-10-28 Sir Henry Lawson-Tancred Sons And Co Ltd Generating electricity

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5039279A (en) 1978-02-23 1981-03-05 Sidney T. Dvorak Generator with alternate power source
AU618719B3 (en) 1991-09-19 1991-11-01 Hiep Viet Tran Floating renewable energy generating station
US20070024058A1 (en) 2005-07-27 2007-02-01 Mcclintic Frank J Methods and apparatus for advanced wind turbine design

Also Published As

Publication number Publication date
ITMI20102140A1 (en) 2012-05-20
WO2012066517A3 (en) 2012-07-19
IT1402875B1 (en) 2013-09-27

Similar Documents

Publication Publication Date Title
RU2017122326A (en) POWER UNIT WITH SELECTIVE CONNECTIONS
EP1925817A3 (en) A system of production of electric energy from renewable energy sources
WO2010009431A3 (en) Power generation system including multiple motors/generators
MX2009007076A (en) A low voltage ride through system for a variable speed wind turbine having an exciter machine and a power converter not connected to the grid.
SI1966486T1 (en) Device and system for producing regenerative and renewable energy from wind
WO2012073504A3 (en) Power generating apparatus of renewable energy type and operation method thereof
CA2670411A1 (en) Wind turbine generator
EP2256341A4 (en) System and method for controlling a wind farm
WO2011011682A3 (en) Wind turbine drive system
EP2571155A3 (en) Method and system for controlling hydroelectric turbines
CN108291522B (en) Apparatus and method for generating energy from renewable energy sources
US20190319525A1 (en) Power generation systems
KR101276954B1 (en) A method for supplying outside energy to an onboard electrical power network of a ship, a ship with such an outside energy supply
FR2975375B1 (en) AUTONOMOUS ELECTRIC POWER GENERATION AND PACKAGING SYSTEM FOR AN AIRCRAFT, AIRCRAFT AND ASSOCIATED METHOD
CN101205874B (en) Electricity generating system having power self-supply system
CN102705151A (en) Method and system for enabling water wheel unit to operate at variable speed
SE0701866L (en) Wind turbine and electric energy generation method
WO2012066517A2 (en) Energy production plant optimized to be supplied by more than one source of energy
CN104329126A (en) Water supply pump constant-speed small steam turbine coaxial driving electric generating set
WO2010134113A3 (en) Wind electric generator
RU144521U1 (en) STARTER-GENERATOR INSTALLATION FOR AN AUTONOMOUS POWER SUPPLY SYSTEM BASED ON A ROTOR-VAN ENGINE WITH EXTERNAL HEAT SUPPLY
AU2010100025A4 (en) Environmentally friendly electricity generation
US20110181048A1 (en) Gear driven energy transfer system
RU2574217C2 (en) Starter-generator set for self-contained power supply based on rotary-vane engine with external heat supply and method of its usage
WO2019182540A2 (en) Air pressure energy generator

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: 11831809

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct app. not ent. europ. phase

Ref document number: 11831809

Country of ref document: EP

Kind code of ref document: A2