Patent SG-11201901416Y-A (SG)
Title: Biomimetic airfoil bodies and methods of designing and making same
Inventor: SHORMANN DAVID
IPC: F01D5/16
Filed: 2017-08-31
Abstract: TT11 T12 T13 C1 C2 C3 C4 FIG. 2A P16 25 O 00 O C (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 08 March 2018 (08.03.2018) WIP0 I PCT 0111111010 0111 °nolo olomum OH mom° oimIE (10) International Publication Number WO 2018/045116 Al (51) International Patent Classification: FOlD 5/14 (2006.01) FOlD 5/12 (2006.01) B64C 3/10 (2006.01) FOlD 5/16 (2006.01) B64C 3/14 (2006.01) FOlD 1/06 (2006.01) B64C 3/28 (2006.01) (21) International Application Number: PCT/US2017/049513 (22) International Filing Date: 31 August 2017 (31.08.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/381,813 31 August 2016 (31.08.2016) US 62/533,456 17 July 2017 (17.07.2017) US 15/689,831 29 August 2017 (29.08.2017) US (72) Inventor; and (71) Applicant: SHORMANN, David, E. [US/US]; 61-679 Kamehameha Hwy., Heleiwa, HI 96712 (US). (74) Agent: ALLEN, Courtenay, B. et al.; Pizarro Allen PC, 3619 Paesanos Parkway, Suite 102, San Antonio, Texas 78231 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (54) Title: BIOMIMETIC AIRFOIL BODIES AND METHODS OF DESIGNING AND MAKING SAME • P17 (57) : An airfoil body may include a plurality of tubercles along a leading edge of the airfoil body and a plurality of crenulations along a trailing edge of the airfoil body, wherein at least one of a position, a size, and a shape of the plurality of tubercles and the plurality of crenulations varies in a non-periodic fashion. The non-periodic fashion may be according to a Fibonacci function and may mimic the configuration of a pectoral fin of a humpback whale. The tubercles and crenulations may be defined with respect to a pivot point. The spanwise profile, including the max chord trailing edge curvature, may closely follow divine spirals and related Fibonacci proportions. The spanwise chord thickness may vary in a nonlinear pattern. Related methods are also described. [Continued on next page] WO 2018/045116 Al MIDEDIMOMOIDEIREEMOOVIVEMOHOIROMEEM# (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))