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Machine translation
1. (WO2016093511) CHECK VALVE FOR PREVENTING SLAM AND WATER HAMMER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2016/093511    International Application No.:    PCT/KR2015/012621
Publication Date: 16.06.2016 International Filing Date: 24.11.2015
IPC:
F16K 15/03 (2006.01), F16K 47/02 (2006.01), F16K 17/34 (2006.01)
Applicants: FLOWTECH CO.,LTD. [KR/KR]; 16, Namdongseo-ro 221beon-gil Namdong-gu Incheon 21634 (KR).
YANG, Ji Suk [KR/KR]; (KR).
OH, Jae Wook [KR/KR]; (KR)
Inventors: YANG, Ji Suk; (KR).
OH, Jae Wook; (KR)
Agent: OH, Chang Suk; (KR)
Priority Data:
10-2014-0175290 08.12.2014 KR
Title (EN) CHECK VALVE FOR PREVENTING SLAM AND WATER HAMMER
(FR) CLAPET ANTI-RETOUR POUR EMPÊCHER UN ÉCRASEMENT ET UN COUP DE BÉLIER
(KO) 슬램 및 수충격 방지용 체크밸브
Abstract: front page image
(EN)The present invention relates to a check valve and, more particularly, to a check valve comprising a main disk and a separate auxiliary disk, the main disk making a rapid closing operation, and the auxiliary disk, which has an area smaller than that of the main disk, making a slow closing operation, thereby reducing the velocity of a reverse flow inside a conduit, right before the disks are finally closed, and preventing a slam (a characteristic phenomenon wherein, when the disks are closed with a bang, an instantaneous increase in pressure wave raises the possibility of piping fracture and causes noise and vibration) of the disks and water hammer.
(FR)La présente invention concerne un clapet anti-retour et, plus particulièrement, un clapet anti-retour comprenant un disque principal et un disque auxiliaire séparé, le disque principal réalisant une opération de fermeture rapide, et le disque auxiliaire, qui a une surface inférieure à celle du disque principal, réalisant une opération de fermeture lente, ce qui permet de réduire ainsi la vitesse d'un écoulement en sens inverse à l'intérieur d'un conduit, juste avant que les disques ne soient finalement fermés, et d'empêcher un écrasement (phénomène caractéristique dans lequel, quand les disques sont fermés avec un claquement, une augmentation instantanée d'onde de pression accroît la possibilité de fracture de tuyauterie et produit un bruit et une vibration) des disques et un coup de bélier.
(KO)본 발명은 체크밸브에 관한 것으로, 더욱 상세하게는 메인디스크와 별도의 보조디스크를 구비하여 메인디스크는 급폐 작동되고, 메인디스크 보다 면적이 작은 보조디스크는 완폐 작동됨으로써, 디스크가 최종 닫히기 직전의 관로내 역류 유속이 감소되어 디스크의 슬램(slam; 디스크가 닫힐 때 '쾅'하고 닫히면서 순간 압력파가 상승하여 배관파손 가능성을 높이고, 소음 및 진동을 유발하는 등의 특성) 현상 및 수충격 방지 효과를 가져올 수 있는 체크밸브에 관한 것이다.
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, 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)