WO2012060735A1 - Способ формирования подъемной силы летательного аппарата и профили крыла для его реализации (варианты) - Google Patents
Способ формирования подъемной силы летательного аппарата и профили крыла для его реализации (варианты) Download PDFInfo
- Publication number
- WO2012060735A1 WO2012060735A1 PCT/RU2011/000744 RU2011000744W WO2012060735A1 WO 2012060735 A1 WO2012060735 A1 WO 2012060735A1 RU 2011000744 W RU2011000744 W RU 2011000744W WO 2012060735 A1 WO2012060735 A1 WO 2012060735A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wing
- aircraft
- profile
- contour
- longitudinal axis
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
- B64C3/10—Shape of wings
- B64C3/14—Aerofoil profile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
- B64C3/10—Shape of wings
- B64C3/14—Aerofoil profile
- B64C2003/144—Aerofoil profile including a flat surface on either the extrados or intrados
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/10—Drag reduction
Definitions
- the invention relates to aerodynamics and can be used to create an aircraft (LA), as well as to create rotors for helicopters, propellers for piston aircraft and propellers for water transport.
- the BCD region is filled with air to the pressure of unperturbed air at the flight altitude of the aircraft, and the high-speed aircraft stream is restored again.
- This is one cycle of wave resistance of the upper wing plane in the region of negative angles of attack of the BCD.
- the process has a self-oscillating character and, when the aircraft approaches the speed of sound, it becomes the main obstacle to the development of high speeds.
- a profile is known that differs from the classical profile and has geometric elements similar to the elements of our profile.
- This wing is according to the American patent JST » 6378802 (IPC: B64C 30/00, publ. 04/30/2002), taken as a prototype for pp. 1, 3 and 4 of the claims proposed by the author.
- the main difference between the prototype and the classical profile is that the front edge is represented by an acute angle that does not divide the incoming flow into two parts - along the upper and lower offices, as the front rounded edge of the classical profile does. From Fig.
- the disadvantage of the prototype is the low efficiency in the formation of lift due to the presence of wave resistance along the upper contour of the wing, which reduces its lifting force per unit area of the wing.
- a symmetrical wedge-shaped wing profile according to the patent of the Russian Federation JST2 2207967 (IPC: B64C 23/06, publ. 07/10/2003 g), taken as a prototype for the wing profile according to claim 2 of the formula of the present invention ..
- a disadvantage of such a wing is also the presence of two trailing edges, cutting off at right angles and creating behind the wing a basis for powerful turbulent resistance, which reduces the efficiency of the aircraft.
- the objective of the invention is to increase the efficiency of formation of lifting force by eliminating wave resistance along the upper contour of the wing and increasing its lifting force per unit area of the wing. Another task is to free the wing from flutter.
- the tasks are solved due to the fact that in the method of forming the lifting force of an aircraft having a longitudinal axis and a wing, part of the upper profile contour of which is represented by a straight segment, including the creation of an acute angle of the leading edge of the wing, a segment of the straight upper profile contour is parallel to the longitudinal axis the aircraft, while the sharp leading edge directs the incoming flow completely along the lower contour of the wing profile.
- a wing profile is created containing sharp front and rear edges, as well as upper and lower contours, while the lower contour is made straight from the front to the trailing edge, and the upper contour has a straight section, which located parallel to the longitudinal axis of the aircraft and connected to the trailing edge of the smooth curve.
- wing profile of an aircraft capable of implementing the claimed method is the wing profile an aircraft having a longitudinal axis and a wing, containing sharp front and rear edges, as well as upper and lower contours, partially represented by parallel straight lines, in which the said rectilinear parts of the upper and lower contours are connected by smooth curves with the front and rear edges, while the upper contour located parallel to the longitudinal axis of the aircraft.
- a third variant of the wing profile of an aircraft capable of implementing the claimed method is the wing profile of an aircraft having a longitudinal axis and a wing containing sharp front and rear edges, as well as upper and lower contours, the upper contour having a rectilinear portion in which said straight portion of the upper the contour is parallel to the longitudinal axis of the aircraft, and the lower contour is made in the form of a curve smoothly connecting the front and rear edges of the wing profile.
- wing lift with the proposed profiles is very difficult to determine based on the known equations.
- a new equation is proposed that takes into account the height of the mid-section of the wing, the length of the chord, the air pressure at the height of flight, as well as the linear velocity of air molecules, which has the following form: p ⁇ and ⁇ ⁇ - h ⁇ ⁇
- Pi is the air density at flight altitude, kg / m 3 . t ". - linear velocity of air molecules, m / s.
- w is the speed of the aircraft, m / s.
- / g is the height of the mid-section of the wing, the average value, m.
- angle DAC I ⁇ is the angle of divergence of the upper and lower contours at the leading edge.
- FIG. 2 shows an aircraft with a wing having a profile according to claim 3 of the claims, where
- AD b is a chord that does not carry a functional load with a given profile
- ADi b] is the external chord, AB is a smooth curve connecting the upper and lower horizontal sections AC i and BD, and forming the toe of the profile;
- CiD - arc forming the trailing edge of the wing
- the wing angle with this profile is zero, zero and the angle of attack on the bearing lower plane BD.
- FIG. 3 shows an aircraft with a wing having a profile according to claim 4, where
- AD is a smooth curve connecting the leading and trailing edges
- the proposed wing profiles ensure that the free stream interacts only with the lower contour represented by a segment (AD) connecting the leading edge (A) with the trailing edge (D), while also being the chord (b). Moreover, there is no high-speed flow along the upper contour (AQD), since the sharp leading edge directs the entire incoming flow along the lower contour (AD).
- the main part of the upper contour is represented by a straight line (AC t ), and its tail part (CiD) gradually descends to the trailing edge.
- the pressure on the upper circuit (AQ) is almost equal to the pressure of unperturbed air at the height of flight, while the upper plane is set parallel to the velocity vector of the aircraft, which is a qualitatively new, significant feature
- the dynamic parameter used in the calculation of the wing lift by classical aerodynamics is the velocity head, to which the lift coefficient (C v ) is empirically selected, and the lift (Y) is determined according to the formula [Physical Encyclopedia. T. 3, p. 670, 1992]:
- Y C / oh ⁇ s ⁇ 2 / N, where (1) s is the air density, kg / f 3 ,
- x is the speed of the aircraft, m / s,
- g is the acceleration of gravity at flight altitude, m / s 2 ;
- Cj is the density of unperturbed air at flight altitude, kg / m
- h is the height of the mid-section (Fig. 2), m,
- Example 1 shows the wing profile, where AD is the chord and at the same time the lower contour; AC
- AD is the chord and at the same time the lower contour
- DDi h is the height of the mid-section of the wing
- angle C AC] in - the angle of divergence of the upper and lower contours.
- the proposed option has an acute-angled leading edge, the hallmarks of which are the following:
- the lower circuit (AD), also the chord (b), is a straight line segment that provides the formation of a high-speed wall flow with high kinetic energy and causes excessive pressure of the lower wing plane (AD).
- a wing with such a profile has minimal drag and maximum lift, which determines its extremely high aerodynamic quality relative to the prototype.
- ) is represented by a segment of a horizontal line parallel to the vector of motion of the aircraft wing or the main longitudinal axis of the aircraft.
- FIG. Figure 2 shows the wing profile, where A is a moderately sharp leading edge, B is the beginning of the wing bearing surface (BD), AB is the arc of smooth connection of the lower contour with the upper one to form the leading edge, C
- the main parts of the upper speaker and lower BD circuits may be parallel to each other, or may not be, depending on the radius of curvature AB ( Figure 2) and the height of the midsection
- This profile is the basic one, from which it is possible to obtain a series of profiles, changing the angle of divergence of the upper and lower contours in the range of 0 ° -90 °, as well as varying the midsection height over a wide range, while supersonic aircraft are equipped with a wing with a sharp leading edge and an acceptable small value midsection height, depending on a number of technical conditions. Heavy aircraft are equipped with a wing with this profile or its variants, while the midsection height will be dictated, first of all, by the take-off mass and speed reached on the runway by the time of separation.
- the upper contour of the wing profile (AC) is installed parallel to the aircraft motion vector or parallel to the main longitudinal axis of the aircraft, i.e. the angle of installation of the upper plane of the wings with the proposed profiles is always 0 °, while the angle of installation of the wing with the classic profile is always greater than zero and ranges from 2 ° to 6 °.
- Example 3 shows the wing profile, where A is a sharp leading edge, AC
- the invention is confirmed by an example of a practical implementation of the method.
- the balance was shielded with a large impermeable duralumin disk.
- the wing models were made of an alloy of aluminum with magnesium, and their surface was carefully polished.
- the wing with the profile of FIG. 1 in all four examples, has significant superiority, both over the prototype and over the wing with the profile of FIG. 2, which is reflected by the coefficient k.
- An analysis of the results indicates that the proposed method of forming the lifting force of the wing and a series of profiles, based on FIG. 2, for its implementation is much better than the classical method and the classical profile.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Tires In General (AREA)
- Toys (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Wind Motors (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020137013980A KR20130120483A (ko) | 2010-11-01 | 2011-09-29 | 비행기를 위한 양력을 발생시키기 위한 방법 및 이 방법 또는 대안을 실시하기 위한 날개 프로파일 |
CN2011800627525A CN103402871A (zh) | 2010-11-01 | 2011-09-29 | 用于形成飞行器升力的方法以及用于实现所述方法的机翼翼型(替代方案) |
CA2806831A CA2806831A1 (en) | 2010-11-01 | 2011-09-29 | Method for forming lifting force for an aircraft and wing profile for realizing said method (alternatives) |
BR112013010663A BR112013010663A2 (pt) | 2010-11-01 | 2011-09-29 | método para formar a força de elevação para uma aeronave e perfil de asa para uma aeronave |
EP11838305.8A EP2567891A4 (en) | 2010-11-01 | 2011-09-29 | METHOD OF CREATING AN ASCENSIONAL FORCE OF AN AIRCRAFT AND WING PROFILES FOR ITS IMPLEMENTATION |
JP2013536557A JP2013540647A (ja) | 2010-11-01 | 2011-09-29 | 航空機の揚力形成方法および本方法を実現させるための翼形(代替案) |
UAA201305610A UA104270C2 (ru) | 2010-11-01 | 2011-09-29 | Профиль крыла летательного аппарата (варианты) |
US13/748,230 US20140191086A1 (en) | 2010-11-01 | 2013-01-23 | Method for forming lifting force for an aircraft and wing profile for realizing said method (alternatives) |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2010144348/11A RU2461492C2 (ru) | 2010-11-01 | 2010-11-01 | Профиль крыла летательного аппарата (варианты) |
RU2010144348 | 2010-11-01 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/748,230 Continuation US20140191086A1 (en) | 2010-11-01 | 2013-01-23 | Method for forming lifting force for an aircraft and wing profile for realizing said method (alternatives) |
Publications (1)
Publication Number | Publication Date |
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WO2012060735A1 true WO2012060735A1 (ru) | 2012-05-10 |
Family
ID=46024678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2011/000744 WO2012060735A1 (ru) | 2010-11-01 | 2011-09-29 | Способ формирования подъемной силы летательного аппарата и профили крыла для его реализации (варианты) |
Country Status (10)
Country | Link |
---|---|
US (1) | US20140191086A1 (ru) |
EP (1) | EP2567891A4 (ru) |
JP (1) | JP2013540647A (ru) |
KR (1) | KR20130120483A (ru) |
CN (1) | CN103402871A (ru) |
BR (1) | BR112013010663A2 (ru) |
CA (1) | CA2806831A1 (ru) |
RU (1) | RU2461492C2 (ru) |
UA (1) | UA104270C2 (ru) |
WO (1) | WO2012060735A1 (ru) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2594321C1 (ru) * | 2015-05-20 | 2016-08-10 | Виктор Антонович Золотухин | Аэродинамический профиль несущей поверхности летательного аппарата |
WO2018135962A1 (ru) * | 2017-01-17 | 2018-07-26 | Джабраил Харунович БАЗИЕВ | Вакуумный способ формирования подъeмной силы летательного аппарата и сверхзвуковое крыло базиева д.х. для его реализации (варианты) |
CN106940744A (zh) * | 2017-03-10 | 2017-07-11 | 朱兆顺 | 可高速运动物体、其轮廓曲线的确定方法及装置 |
CN112849387B (zh) * | 2021-01-22 | 2022-11-08 | 西北工业大学 | 一种考虑动力安装平台的飞翼反弯翼型 |
IT202200007814A1 (it) * | 2022-04-20 | 2023-10-20 | R E M Holding S R L | Profilo e superficie fluidodinamica comprendente tale profilo |
Citations (3)
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US1180271A (en) * | 1911-02-10 | 1916-04-18 | Tarbox Safety Aircraft Company | Aircraft. |
US2126502A (en) * | 1934-04-03 | 1938-08-09 | Frank A Redlinger | Airfoil |
US6378802B1 (en) | 1998-05-04 | 2002-04-30 | Manuel Munoz Saiz | Enhance aerodynamic profile |
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US1406923A (en) * | 1921-04-06 | 1922-02-14 | Brice John Francis | Plane for aircraft |
GB644568A (en) * | 1945-03-24 | 1950-10-11 | Cem Comp Electro Mec | Fairing for high speed devices |
US2916230A (en) * | 1948-01-14 | 1959-12-08 | Gen Electric | Supersonic airfoil |
US3706430A (en) * | 1970-03-17 | 1972-12-19 | Richard L Kline | Airfoil for aircraft |
US3904151A (en) * | 1973-03-16 | 1975-09-09 | Vehicle Research Corp | Supersonic upflow wing |
US4483497A (en) * | 1973-03-16 | 1984-11-20 | Rethorst Scott C | Wide-body supersonic aircraft |
US4168044A (en) * | 1975-06-06 | 1979-09-18 | Vehicle Research Corporation | Energy conserving supersonic aircraft |
US5358156A (en) * | 1990-07-23 | 1994-10-25 | Vehicle Research Corporation | Supersonic aircraft shock wave energy recovery system |
US5251846A (en) * | 1990-07-23 | 1993-10-12 | Vehicle Research Corporation | Supersonic aircraft shock wave energy recovery system |
US5402969A (en) * | 1993-03-09 | 1995-04-04 | Shea; Brian | Aircraft structure |
US5934607A (en) * | 1997-01-21 | 1999-08-10 | Lockheed Martin Corporation | Shock suppression supersonic aircraft |
US6095457A (en) * | 1998-12-14 | 2000-08-01 | Vanmoor; Arthur | Airfoil and wing configuration |
RU2207967C2 (ru) * | 2001-02-19 | 2003-07-10 | Общество с ограниченной ответственностью "Научно-инновационная фирма "ВОЛ" | Крыло |
US20040206852A1 (en) * | 2003-04-16 | 2004-10-21 | Saiz Manuel Munoz | Aerodynamic profile |
US7546977B2 (en) * | 2003-07-03 | 2009-06-16 | Lockheed-Martin Corporation | Passive aerodynamic sonic boom suppression for supersonic aircraft |
US7861966B2 (en) * | 2005-04-18 | 2011-01-04 | Vehicle Research Corporation | Supersonic aircraft footprint spreading control system and method |
-
2010
- 2010-11-01 RU RU2010144348/11A patent/RU2461492C2/ru active IP Right Revival
-
2011
- 2011-09-29 UA UAA201305610A patent/UA104270C2/ru unknown
- 2011-09-29 KR KR1020137013980A patent/KR20130120483A/ko not_active Withdrawn
- 2011-09-29 BR BR112013010663A patent/BR112013010663A2/pt not_active IP Right Cessation
- 2011-09-29 CN CN2011800627525A patent/CN103402871A/zh active Pending
- 2011-09-29 CA CA2806831A patent/CA2806831A1/en not_active Abandoned
- 2011-09-29 JP JP2013536557A patent/JP2013540647A/ja not_active Withdrawn
- 2011-09-29 WO PCT/RU2011/000744 patent/WO2012060735A1/ru active Application Filing
- 2011-09-29 EP EP11838305.8A patent/EP2567891A4/en not_active Withdrawn
-
2013
- 2013-01-23 US US13/748,230 patent/US20140191086A1/en not_active Abandoned
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US1180271A (en) * | 1911-02-10 | 1916-04-18 | Tarbox Safety Aircraft Company | Aircraft. |
US2126502A (en) * | 1934-04-03 | 1938-08-09 | Frank A Redlinger | Airfoil |
US6378802B1 (en) | 1998-05-04 | 2002-04-30 | Manuel Munoz Saiz | Enhance aerodynamic profile |
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"Encyclopedia of physics", vol. 3, 1992 |
"Encyclopedia of physics.", vol. 3, 1992, pages: 670 |
"Helicopters of countries around the world", 1994 |
A.M. VOLODKO; M.P. VERKHOZIN; V.A. GORSHKOV: "Helicopters. Guidebook. Moscow", 1992 |
D.H. BAZIEV: "Fundamentals of a unified theory of physics", MOSCOW, PEDAGOGICS, 1994, pages 640 |
D.H. BAZIEV: "Fundamentals of a unified theory of physics. Moscow", PEDAGOGICS, 1994, pages 619 |
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V.N. DALIN, SPECIFICATIONS AND CONSTRUCTION OF HELICOPTERS. MOSCOW, 1983 |
Also Published As
Publication number | Publication date |
---|---|
RU2010144348A (ru) | 2012-05-10 |
KR20130120483A (ko) | 2013-11-04 |
JP2013540647A (ja) | 2013-11-07 |
RU2461492C2 (ru) | 2012-09-20 |
EP2567891A1 (en) | 2013-03-13 |
US20140191086A1 (en) | 2014-07-10 |
UA104270C2 (ru) | 2014-01-10 |
EP2567891A4 (en) | 2014-09-03 |
CA2806831A1 (en) | 2012-05-10 |
CN103402871A (zh) | 2013-11-20 |
BR112013010663A2 (pt) | 2016-08-09 |
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