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
Options
Query Language
Stem
Sort by:
List Length
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/130752 International Application No.: PCT/FR2017/000257
Publication Date: 19.07.2018 International Filing Date: 21.12.2017
IPC:
F04D 29/18 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
D
NON-POSITIVE-DISPLACEMENT PUMPS
29
Details, component parts, or accessories
18
Rotors
Applicants: BRATU, Christian[FR/FR]; FR
Inventors: BRATU, Christian; FR
Priority Data:
17/0003716.01.2017FR
Title (EN) DUAL AXIAL PUMP
(FR) POMPE AXIALE DUALE
Abstract:
(EN) The invention relates to a dual axial pump including at least one pumping stage (1) provided with a pumping device (2) rotating inside a stationary casing (12). The pumping device (2) comprises rotary closed channels (8) formed by the integral assembly; the rotor (3), the axial blades (5, 6, 7) and the outer cylinder (4). Thus, the dual axial pump is intended for transporting fluid mixtures made up of more or less viscous liquids, gas and a proportion of solid particles. For this purpose, the rotary pumping device (2) provides a flow confined in the sealed closed channels (8), thus protecting against contact between the rotary portion (2) and the stationary casing (12). Also, the axial blades (5, 6, 7) have a specific configuration, suited to the pumping of fluid mixtures. The architecture of the dual axial pump considerably increases the reliability and the hydraulic efficiency of the transport of complex fluid mixtures.
(FR) L' invention concerne une pompe axiale duale comportant au moins un étage de pompage (1) pourvu d'un dispositif de pompage (2) tournant à l'intérieur d'un carter fixe (12). Le dispositif de pompage (2) comprend des canaux fermés (8) tournants constitués par l'ensemble solidaire; le rotor (3), les pales axiales (5,6,7) et le cylindre extérieur (4). Ainsi, la pompe axiale duale est dédiée au transport des mélanges fluides constitués de liquides plus ou moins visqueux, de gaz et une proportion de particules solides. Pour ce faire, le dispositif de pompage (2) tournant assure un écoulement confiné dans les canaux fermés (8) étanches, constituant ainsi une protection du contact entre la partie tournante (2) et le casing fixe (12). Aussi, les pales axiales (5,6,7) ont une configuration spécifique, adaptée au pompage des mélanges fluides. L'architecture de la pompe axiale duale permet l'augmentation significative de la fiabilité et des performances hydrauliques du transport des mélanges fluides complexes.
front page image
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, 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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: French (FR)
Filing Language: French (FR)