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1. (WO2015116772) NON-CONTACTING LABYRINTH SEAL ASSEMBLY
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/116772 International Application No.: PCT/US2015/013438
Publication Date: 06.08.2015 International Filing Date: 29.01.2015
IPC:
F16J 15/447 (2006.01)
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
44
Free-space packings
447
Labyrinth packings
Applicants: A.W. CHESTERTON COMPANY[US/US]; 500 Unicorn Park Drive Woburn, MA 01801, US
Inventors: GRIMANIS, Michael, P.; US
RICHARD, Thomas; US
Agent: LORENTANO, Anthony, A.; US
Priority Data:
14/167,24429.01.2014US
Title (EN) NON-CONTACTING LABYRINTH SEAL ASSEMBLY
(FR) ENSEMBLE JOINT À LABYRINTHE SANS CONTACT
Abstract:
(EN) A labyrinth seal assembly is provided for forming a seal between a shaft and housing. The seal assembly includes a stationary element configured to be coupled to the housing and having an annular shape defining a space through which the shaft extends; a rotary element disposed within the space and coupled to the shaft so as to rotate therewith, the rotary element having an outer surface that extends in an axial direction and having a groove formed therein, the rotary element being disposed between the stationary element and the shaft; and a valve element mounted within the groove and disposed between the stationary element and the rotary element when assembled to form the seal. The valve element is formed from an elastomeric material.
(FR) L'invention porte sur un ensemble joint à labyrinthe qui permet de former un joint d'étanchéité entre un arbre et un boîtier. L'ensemble joint comprend un élément stationnaire configuré de façon à être couplé au boîtier, et ayant une forme annulaire délimitant un espace à travers lequel s'étend l'arbre; un élément rotatif disposé à l'intérieur de l'espace et couplé à l'arbre de façon à tourner avec ce dernier, l'élément rotatif ayant une surface externe qui s'étend dans une direction axiale et ayant une rainure formée à l'intérieur de cette dernière, l'élément rotatif étant disposé entre l'élément stationnaire et l'arbre; un élément de vanne monté à l'intérieur de la rainure et disposé entre l'élément stationnaire et l'élément rotatif lors de l'assemblage pour former le joint d'étanchéité. L'élément de vanne est constitué en un matériau élastomère.
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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 (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: English (EN)
Filing Language: English (EN)