PATENTSCOPE will be unavailable a few hours for maintenance reason on Tuesday 19.11.2019 at 4:00 PM CET
Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2010076636) HYBRID MULTISAGE BRUSH SEAL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/076636 International Application No.: PCT/IB2009/007878
Publication Date: 08.07.2010 International Filing Date: 23.12.2009
IPC:
F01D 11/02 (2006.01) ,F16J 15/00 (2006.01) ,F16J 15/32 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
11
Preventing or minimising internal leakage of working fluid, e.g. between stages
02
by non-contact sealings, e.g. of labyrinth type
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15
Sealings
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15
Sealings
16
between relatively-moving surfaces
32
with elastic sealing lip
Applicants:
EATON CORPORATION [US/US]; Eaton Center 1111 Superior Avenue Cleveland, OH 44114-2584, US
Inventors:
ZHENG, Xiaoqing; US
DUQUETTE, Joshua J.; US
Priority Data:
12/345,88130.12.2008US
Title (EN) HYBRID MULTISAGE BRUSH SEAL
(FR) JOINT D'ÉTANCHÉITÉ À BROSSE MULTI-ÉTAGES DU TYPE HYBRIDE
Abstract:
(EN) A multi-stage brush seal (10) and assembly for sealing a circumferential gap with respect to a sealed component is disclosed. The brush seal (10) includes a first stage (20) including a first plurality of bristles (40a) and a second stage (30) including a second plurality of bristles (40b). In an embodiment, the first stage (20) is configured with an initial first-stage clearance and seals said sealed component at high pressure and low pressure conditions, and the second stage (30) is configured to have an initial second-stage clearance greater than the initial first-stage clearance so that the second stage does not seal said sealed component at the low pressure condition but is configured to be activated by a blow-down effect to seal said sealed component at the high pressure condition. In embodiments the brush seal (10) includes features to enhance or reduce pressure blow-down with respect to the first-stage clearance.
(FR) L'invention concerne un joint d'étanchéité à brosse multi-étages (10) et un ensemble pour assurer l'étanchéité d'un espace circonférentiel par rapport à une pièce étanche. Le joint d'étanchéité à brosse (10) comprend un premier étage (20) comprenant une première pluralité de poils (40a) et un deuxième étage (30) comprenant une deuxième pluralité de poils (40b). Dans un mode de réalisation, le premier étage (20) est configuré avec un jeu initial de premier étage et assure l'étanchéité de ladite pièce étanche dans des conditions de haute pression et de basse pression, et le deuxième étage (30) est configuré pour avoir un jeu initial de deuxième étage supérieur au jeu initial de premier étage de sorte que le deuxième étage n'assure pas l'étanchéité de ladite pièce étanche dans la condition de basse pression mais est configuré pour être activé par un effet de purge pour assurer l'étanchéité de ladite pièce étanche dans la condition de haute pression. Dans des modes de réalisation, le joint d'étanchéité à brosse (10) comprend des caractéristiques destinées à accroître ou réduire la purge de pression par rapport au jeu de premier étage.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, 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, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)