WO2012162772A3 - Elemento dotado de pelo menos uma superfície de deslizamento para uso em um motor de combustão" - Google Patents

Elemento dotado de pelo menos uma superfície de deslizamento para uso em um motor de combustão" Download PDF

Info

Publication number
WO2012162772A3
WO2012162772A3 PCT/BR2012/000161 BR2012000161W WO2012162772A3 WO 2012162772 A3 WO2012162772 A3 WO 2012162772A3 BR 2012000161 W BR2012000161 W BR 2012000161W WO 2012162772 A3 WO2012162772 A3 WO 2012162772A3
Authority
WO
WIPO (PCT)
Prior art keywords
combustion engine
internal combustion
element provided
slide surface
orientation
Prior art date
Application number
PCT/BR2012/000161
Other languages
English (en)
French (fr)
Other versions
WO2012162772A2 (pt
Inventor
Paulo José DA ROCHA MORDENTE
Robert Richard Banfield
Juliano Avelar Araujo
José VALENTIM LIMA SARABANDA
Original Assignee
Mahle Metal Leve S/A
Mahle International Gmbh
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 Mahle Metal Leve S/A, Mahle International Gmbh filed Critical Mahle Metal Leve S/A
Priority to JP2014513008A priority Critical patent/JP2014519552A/ja
Priority to CN201280036856.3A priority patent/CN103917686B/zh
Priority to US14/122,995 priority patent/US9181870B2/en
Priority to EP12741241.9A priority patent/EP2716791B1/en
Publication of WO2012162772A2 publication Critical patent/WO2012162772A2/pt
Publication of WO2012162772A3 publication Critical patent/WO2012162772A3/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/0641—Nitrides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34—Sputtering
    • C23C14/3485—Sputtering using pulsed power to the target
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/347—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with layers adapted for cutting tools or wear applications
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Vapour Deposition (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

A presente invenção refere-se a um elemento (1) que trabalha sob deslizamento de um motor de combustão interna e/ou compressor que sofre atrito e que recebe um revestimento de nitreto de cromo dotado de uma morfologia equiaxial, com baixa porosidade (inferior a 1 %) e com uma orientação cristalográfica predominantemente (111), mantendo algum reticu- lado na orientação (200) por forma a melhorar a sua resistência ao desgaste e tenacidade, aumentando à vida útil do elemento (1) que trabalham sob deslizamento.
PCT/BR2012/000161 2011-05-27 2012-05-28 Elemento dotado de pelo menos uma superfície de deslizamento para uso em um motor de combustão" WO2012162772A2 (pt)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2014513008A JP2014519552A (ja) 2011-05-27 2012-05-28 内燃機関用の少なくとも１つの摺動面を備えたエレメント
CN201280036856.3A CN103917686B (zh) 2011-05-27 2012-05-28 用于内燃机的具有至少一个滑动面的元件
US14/122,995 US9181870B2 (en) 2011-05-27 2012-05-28 Element provided with at least one slide surface for use on an internal combustion engine
EP12741241.9A EP2716791B1 (en) 2011-05-27 2012-05-28 An element provided with at least one slide surface for use on an internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRPI1102336-8A BRPI1102336B1 (pt) 2011-05-27 2011-05-27 elemento dotado de pelo menos uma superfície de deslizamento para uso em um motor de combustão
BRPI1102336-8 2011-05-27

Publications (2)

Publication Number Publication Date
WO2012162772A2 WO2012162772A2 (pt) 2012-12-06
WO2012162772A3 true WO2012162772A3 (pt) 2013-01-24

Family

ID=46601665

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2012/000161 WO2012162772A2 (pt) 2011-05-27 2012-05-28 Elemento dotado de pelo menos uma superfície de deslizamento para uso em um motor de combustão"

Country Status (6)

Country Link
US (1) US9181870B2 (pt)
EP (1) EP2716791B1 (pt)
JP (1) JP2014519552A (pt)
CN (1) CN103917686B (pt)
BR (1) BRPI1102336B1 (pt)
WO (1) WO2012162772A2 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9958830B2 (en) * 2011-07-21 2018-05-01 The Swatch Group Research And Development Ltd Functional micromechanical assembly
DE102012204156A1 (de) * 2012-03-16 2013-09-19 Federal-Mogul Burscheid Gmbh Kolbenring mit Chrom-Feststoffpartikel-Verschleißschutzschicht und korrosionsbeständiger Flankenfläche
BR102015008817B1 (pt) 2015-04-17 2022-08-30 Mahle International Gmbh Anel de pistão para motores de combustão interna
US10030773B2 (en) 2016-03-04 2018-07-24 Mahle International Gmbh Piston ring
BR102016017735B1 (pt) * 2016-07-29 2021-05-18 Mahle Metal Leve S.A. elemento deslizante para motores de combustão interna

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4517726A (en) * 1980-04-17 1985-05-21 Naohiko Yokoshima Method of producing seal ring
JP2764935B2 (ja) * 1988-08-09 1998-06-11 いすゞ自動車株式会社 セラミック材料から成る相対摺動部材
US4989556A (en) * 1988-10-07 1991-02-05 Honda Giken Kogyo Kabushiki Kaisha Valve spring retainer for valve operating mechanism for internal combustion engine
JPH07187678A (ja) * 1993-12-27 1995-07-25 Nissin Electric Co Ltd 窒化クロム膜被覆基体
CN1068388C (zh) 1994-07-30 2001-07-11 株式会社理研 滑动部件
JP3728740B2 (ja) * 1995-04-28 2005-12-21 日本ピストンリング株式会社 内燃機関用ピストンリング
JP3642917B2 (ja) * 1997-05-01 2005-04-27 帝国ピストンリング株式会社 硬質被覆材およびそれを被覆した摺動部材ならびにその製造方法
JP3514963B2 (ja) * 1997-12-24 2004-04-05 帝国ピストンリング株式会社 摺動部材
JP3324980B2 (ja) * 1998-02-20 2002-09-17 トヨタ自動車株式会社 ピストンリング構造体の組付け方法
JP3824199B2 (ja) * 1998-08-24 2006-09-20 日本ピストンリング株式会社 摺動部材
JP2000144391A (ja) * 1998-08-24 2000-05-26 Nippon Piston Ring Co Ltd 摺動部材
JP2000144376A (ja) * 1998-11-18 2000-05-26 Sumitomo Electric Ind Ltd 摺動特性の良好な皮膜
JP2000234622A (ja) * 1999-02-17 2000-08-29 Nippon Piston Ring Co Ltd 摺動部材
JP4382209B2 (ja) 1999-09-24 2009-12-09 帝国ピストンリング株式会社 硬質皮膜及びそれを被覆した摺動部材並びにその製造方法
JP4973971B2 (ja) * 2003-08-08 2012-07-11 日産自動車株式会社 摺動部材
JP2005060810A (ja) * 2003-08-20 2005-03-10 Riken Corp 被覆材及びその製造方法
JP5036232B2 (ja) * 2006-07-06 2012-09-26 Ｔｐｒ株式会社 内燃機関用ピストンリング
JP2008081522A (ja) * 2006-09-26 2008-04-10 Hitachi Ltd 摺動部材
WO2007147532A2 (en) 2007-06-16 2007-12-27 Mahle International Gmbh Piston ring with chromium nitride coating for internal combustion engines
ATE535629T1 (de) * 2008-07-29 2011-12-15 Sulzer Metaplas Gmbh Gepulstes hochleistungs-magnetronsputterverfahren sowie hochleistungs-elektroenergiequelle

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
EHIASARIAN A P ET AL: "Comparison of microstructure and mechanical properties of chromium nitride-based coatings deposited by high power impulse magnetron sputtering and by the combined steered cathodic arc/unbalanced magnetron technique", THIN SOLID FILMS, ELSEVIER-SEQUOIA S.A. LAUSANNE, CH, vol. 457, no. 2, 15 June 2004 (2004-06-15), pages 270 - 277, XP004507225, ISSN: 0040-6090, DOI: 10.1016/J.TSF.2003.11.113 *
HOVSEPIAN P EH ET AL: "CrAlYCN/CrCN nanoscale multilayer PVD coatings deposited by the combined High Power Impulse Magnetron Sputtering/Unbalanced Magnetron Sputtering (HIPIMS/UBM) technology", SURFACE AND COATINGS TECHNOLOGY, ELSEVIER, AMSTERDAM, NL, vol. 203, no. 9, 25 January 2009 (2009-01-25), pages 1237 - 1243, XP025873306, ISSN: 0257-8972, [retrieved on 20081105], DOI: 10.1016/J.SURFCOAT.2008.10.033 *
HOVSEPIAN P EH ET AL: "CrAlYN/CrN superlattice coatings deposited by the combined high power impulse magnetron sputtering/unbalanced magnetron sputtering technique", SURFACE AND COATINGS TECHNOLOGY, ELSEVIER, AMSTERDAM, NL, vol. 201, no. 7, 20 December 2006 (2006-12-20), pages 4105 - 4110, XP024995947, ISSN: 0257-8972, [retrieved on 20061220], DOI: 10.1016/J.SURFCOAT.2006.08.027 *
LIN J ET AL: "High rate deposition of thick CrN and Cr2N coatings using modulated pulse power (MPP) magnetron sputtering", SURFACE AND COATINGS TECHNOLOGY, ELSEVIER, AMSTERDAM, NL, vol. 205, no. 10, 15 February 2011 (2011-02-15), pages 3226 - 3234, XP027586611, ISSN: 0257-8972, [retrieved on 20110106] *
PURANDARE Y ET AL: "Deposition of nanoscale multilayer CrN/NbN physical vapor deposition coatings by high power impulse magnetron sputtering", JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY: PART A, AVS /AIP, MELVILLE, NY., US, vol. 26, no. 2, 20 February 2008 (2008-02-20), pages 288 - 296, XP012113857, ISSN: 0734-2101, DOI: 10.1116/1.2839855 *
SÃ FRÃ N G ET AL: "Influence of the bias voltage on the structure and mechanical performance of nanoscale multilayer CrAlYNâ CrN physical vapor deposition coatings", JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY: PART A, AVS /AIP, MELVILLE, NY., US, vol. 27, no. 2, 6 February 2009 (2009-02-06), pages 174 - 182, XP012128842, ISSN: 0734-2101, DOI: 10.1116/1.3065675 *

Also Published As

Publication number Publication date
US20140245987A1 (en) 2014-09-04
US9181870B2 (en) 2015-11-10
EP2716791A2 (en) 2014-04-09
JP2014519552A (ja) 2014-08-14
WO2012162772A2 (pt) 2012-12-06
BRPI1102336A2 (pt) 2013-06-25
BRPI1102336B1 (pt) 2021-01-12
CN103917686B (zh) 2017-08-01
CN103917686A (zh) 2014-07-09
EP2716791B1 (en) 2016-02-10

Similar Documents

Publication Publication Date Title
WO2012162772A3 (pt) Elemento dotado de pelo menos uma superfície de deslizamento para uso em um motor de combustão"
IN2014DN07953A (pt)
WO2011075804A8 (pt) Anel de pistão
IN2014CN02700A (pt)
MX2016000340A (es) Revestimiento rociado a base de hierro, bloque de cilindros para motor de combustion interna que utiliza el mismo, y mecanismo deslizante para motor de combustion interna.
EP2313629A4 (en) COMBUSTION ENGINE WITH WORKING PISTON AND CONTROL PISTON
EP3626805A4 (en) LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION MACHINE
WO2012130455A3 (en) Slide component and method for production of cladding on a substrate
WO2012041769A3 (de) Kolbenschaftbeschichtung aus einer reibungsarmen einlaufschicht und einer verschleissarmen grundschicht
EP3460191B8 (en) Gas turbine engine component with cooling holes having variable roughness
PH12015500415A1 (en) Arc pvd coating with enhanced reducing friction and reducing wear properties
MX2015010456A (es) Motor de combustion interna de relacion de compresion variable.
WO2016059237A3 (de) Beschichtung für bauteile von brennkraftmaschinen
TR201903313T4 (tr) Kompresör.
BRPI0719867A2 (pt) Peça em contato deslizante, em regime lubrificado, revestida de uma camada fina e utilização desta
WO2009129380A3 (en) Methods for enhancing lubricity of surfaces
EP2650502A4 (en) CIRCULAR SLIDING MECHANISM OF A CRANKS AND FLOATING ELEMENT, CYLINDER BLOCK, INTERNAL COMBUSTION ENGINE AND COMPRESSORS
BR112014000088A2 (pt) anel raspador de óleo para um pistão de um motor de combustão
WO2013173896A8 (pt) Cilindro para aplicação em um motor de combustão interna
MX356600B (es) Pieza de fricción que opera en un ambiente lubricado.
BR112015002104A2 (pt) composição de óleo lubrificante para motores de combustão interna
WO2013185197A3 (pt) Bronzina para motores de combustão interna
WO2014072152A3 (de) Verfahren zum beschichten einer laufbahn eines trochoidengehäuses eines kreiskolbenmotors und trochoidengehäuse mit beschichteter laufbahn
DE602006010728D1 (de) Lecithinhaltige stärkezusammensetzungen, herstellung davon und papierprodukte mit öl- und fettresistenz und/oder trenneigenschaften
IN2014CN00785A (pt)

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: 12741241

Country of ref document: EP

Kind code of ref document: A2

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
ENP Entry into the national phase

Ref document number: 2014513008

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2012741241

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 14122995

Country of ref document: US