WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2016175340) ENERGY-SAVING DUCT FOR ATTACHING TO STERN OF SHIP
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2016/175340    International Application No.:    PCT/KR2015/004192
Publication Date: 03.11.2016 International Filing Date: 27.04.2015
IPC:
B63H 5/16 (2006.01), B63H 1/28 (2006.01)
Applicants: KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY [KR/KR]; 787, Haean-ro, Sangnok-gu Ansan-si Gyeonggi-do 426-744 (KR)
Inventors: KIM, Kwang Soo; (KR).
KIM, Yoo Chul; (KR).
KIM, Yoon Sik; (KR).
YIM, Geun Tae; (KR).
AHN, Hae Seong; (KR).
LEE, Young Yeon; (KR)
Agent: DONGCHEON PATENT FIRM; 5F, 16, Teheran-ro 84-gil Gangnam-gu Seoul 06178 (KR)
Priority Data:
Title (EN) ENERGY-SAVING DUCT FOR ATTACHING TO STERN OF SHIP
(FR) CONDUIT À ÉCONOMIE D'ÉNERGIE À FIXER À LA POUPE D'UN BATEAU
(KO) 에너지 절감을 위한 선미 부착형 덕트
Abstract: front page image
(EN)The present invention provides an energy-saving duct for attaching to the stern of a ship, the circular duct being attached in front of a stern propeller of radius R, wherein the duct has a radius of 0.7R at the back end and an angle of attack of 12 degrees. According to the present invention, by rectifying and accelerating the flow of the flow field entering and passing through the interior of the duct, the pressure recovery of the stern is promoted and thereby the resistance performance of the ship is improved, and moreover, the propulsive performance of the propeller can be improved by the changes in the wake entering the propeller. Furthermore, by suitably configuring the angle of attack of the duct with respect to the inflow flow field, not only can the drag of the duct itself, which is an addition, be minimized, but additional thrust provided by the duct itself can be expected. Also, according to the present invention, as the shape of the duct is comparatively simple and installation can be completed simply by attaching the duct to the stern, production and installation are simple and cost therefor is economical, and the present invention has the benefit of being applicable not only to new hulls but also to existing hulls in operation.
(FR)La présente invention concerne un conduit à économie d'énergie à fixer à la poupe d'un bateau, le conduit circulaire étant fixé à l'avant d'une hélice de poupe de rayon R, le conduit ayant un rayon de 0,7 R au niveau de l'extrémité arrière et un angle d'attaque de 12 degrés. Selon la présente invention, par correction et accélération du flux du champ d'écoulement entrant dans le conduit et traversant celui-ci, la récupération de pression de la poupe est favorisée et, de ce fait, la performance de résistance du bateau est améliorée, et de plus, la performance de propulsion de l'hélice peut être améliorée par les changements du sillage entrant dans l'hélice. En outre, en configurant de façon appropriée l'angle d'attaque du conduit par rapport au champ d'écoulement entrant, non seulement la traînée du conduit lui-même, qui est un ajout, peut être réduite, mais une poussée supplémentaire fournie par le conduit lui-même peut être obtenue. De même, selon la présente invention, comme la forme du conduit est relativement simple et que l'installation peut être effectuée simplement en fixant le conduit à la poupe, la production et l'installation sont simples et économiques, et la présente invention présente l'avantage d'être applicable non seulement à de nouvelles coques, mais également aux coques existantes déjà utilisées.
(KO)본 발명은, 반경이 R인 선미 프로펠러의 전방에 부착되는 원형 형상의 덕트로서, 상기 덕트는 후단부의 반경이 0.7R의 크기를 가지며, 받음각이 12도의 크기를 가지는 것을 특징으로 하는, 에너지 절감을 위한 선미 부착형 덕트를 제공한다. 본 발명에 의하면, 덕트 내부로 유입되어 통과하는 유동장의 흐름을 정류하고 가속시킴으로써 선미의 압력회복을 도모하고 이를 통하여 선체 저항성능을 개선하는 한편, 프로펠러에 유입되는 반류 변화를 통하여 프로펠러 추진성능을 개선할 수 있다. 또한, 유입 유동장에 대한 덕트의 받음각을 적절히 설계함으로써 부가물인 덕트 자체의 항력을 최소화할 수 있을 뿐만 아니라 덕트 자체의 부가적인 추력까지도 기대할 수 있다. 또한 본 발명에 의하면, 덕트의 형상이 비교적 간단하고 단순히 선미에 부착하는 것만으로 설치를 완료할 수 있으므로 그 제작 및 설치가 간편하고 비용이 저렴하며 새로운 선형뿐만 아니라 기존에 운항 중인 선형에도 적용이 가능하다는 장점이 있다.
Designated States: 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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, 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.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: Korean (KO)
Filing Language: Korean (KO)