(12) International Application Status Report Received at International Bureau: 06 March 2008 (06.03.2008) Information valid as of: 11 January 2010 (11.01.2010) Report generated on: 12 May 2016 (12.05.2016) (10) Publication number: WO2008/098332 (21) Application Number: PCT/BR2008/000045 (43) Publication date: 21 August 2008 (21.08.2008) (22) Filing Date: 15 February 2008 (15.02.2008) (26) Publication language: English (EN) (25) Filing language: English (EN) (31) Priority number(s): (31) Priority date(s): (31) Priority status: PI0700765-5 (BR) 15 February 2007 (15.02.2007) Priority document received (in compliance with PCT Rule 17.1) (51) International Patent Classification: B64C 21/10 (2006.01) (71) Applicant(s): EMBRAER - EMPRESA BRASILEIRA DE AERONÁUTICA S.A. [BR/BR]; Av. Brigadeiro Faria Lima, 2170 012227-901, São José dos Campos, SP. (BR) (for all designated states except US) DA SILVA, Luis, Fernando, Figueira [BR/BR]; Rua Itamonte, 41 22241-260, Rio de Janeiro, RJ (BR) (for US only) FERREIRA, Sandro, Barros [BR/BR]; Rua Gustavo Corção, 595 22790-150, Rio de Janeiro, RJ (BR) (for US only) PEREZ, Cesar, Celis [BR/BR]; Rua Marquês de São Vicente, 154/203 22451-040, Rio de Janeiro, RJ (BR) (for US only) OLIVEIRA, Guilherme, Lara [BR/BR]; Rua Helipo Chaves Monteiro, No. 94 12244-210, São José dos Campos, SP (BR) (for US only) DE JESUS, Antonio, Batista [BR/BR]; Rua Santo Agostinho, 123 apto.23 12243-800, São José dos Campos, SP (BR) (for US only) (72) Inventor(s): DA SILVA, Luis, Fernando, Figueira; Rua Itamonte, 41 22241-260, Rio de Janeiro, RJ (BR) FERREIRA, Sandro, Barros; Rua Gustavo Corção, 595 22790-150, Rio de Janeiro, RJ (BR) PEREZ, Cesar, Celis; Rua Marquês de São Vicente, 154/203 22451-040, Rio de Janeiro, RJ (BR) OLIVEIRA, Guilherme, Lara; Rua Helipo Chaves Monteiro, No. 94 12244-210, São José dos Campos, SP (BR) DE JESUS, Antonio, Batista; Rua Santo Agostinho, 123 apto.23 12243-800, São José dos Campos, SP (BR) (74) Agent(s): GIACCHETTA, André, Zonaro; Pinheiro Neto Advogados Rua Hungría, 1.100, Jardim Europa 01455-000, São Paulo, SP (BR) (54) Title (EN): VORTEX GENERATOR FOR FLUSH AIR INLETS PERFORMANCE IMPROVEMENT (54) Title (FR): GÉNÉRATEUR DE VORTEX POUR AMÉLIORATION DE LA PERFORMANCE D'ENTRÉES D'AIR LISSES (57) Abstract: (EN): A VG (vortex generator) placed on a body surface (aircraft or similar), upstream of a flush air inlet, in order to generate vortexes that will sweep away the boundary layer in front of the inlet, inducing a downwash effect in the freestream airflow, such VG consisting of a wing (1) parallel to the surface of the aircraft or similar, said wing supported by a support (2) or a pair of supports (2) such as fins disposed in a divergent angle; the VG considerably improves the inlet ram recovery ratio and the mass flow ratio of the air inlet and it has an effect of reduction of the VG boundary layer thickness, thus reducing the distortion level of the flow entering the inlet as the inlet ingests more freestream air and the vortexes are not ingested by the inlet. (FR): L'invention concerne un VG (générateur de vortex) placé sur la surface d'un corps (avion ou similaire), en amont d'une entrée d'air lisse, afin de générer des vortex qui balayent la couche limite devant l'entrée, induisant un effet de rabattement dans l'écoulement d'air non perturbé. Un tel VG consiste en une aile (1) parallèle à la surface de l'avion ou similaire, supportée par un ou deux supports (2), tels que des ailettes, disposés à un angle divergeant; le VG améliore considérablement le taux de récupération d'entrée d'air dynamique et le rapport de débit massique de l'entrée d'air; et présente un effet de réduction d'épaisseur de couche
limite de VG, réduisant ainsi le niveau de distorsion de l'écoulement entrant dans l'entrée, plus d'air non perturbé entrant dans l'entrée sans que les vortex n'y entrent. International search report: Received at International Bureau: 10 November 2009 (10.11.2009) [US] International Report on Patentability (IPRP) Chapter II of the PCT: Not available (81) Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW European Patent Office (EPO) : AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR African Intellectual Property Organization (OAPI) : BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG African Regional Intellectual Property Organization (ARIPO) : BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW Eurasian Patent Organization (EAPO) : AM, AZ, BY, KG, KZ, MD, RU, TJ, TM