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Pub. No.:    WO/1997/021042    International Application No.:    PCT/GB1996/002901
Publication Date: 12.06.1997 International Filing Date: 25.11.1996
Chapter 2 Demand Filed:    28.06.1997    
F16D 65/12 (2006.01)
Applicants: T & N TECHNOLOGY LIMITED [GB/GB]; Cawston House, Cawston Lane, Rugby, Warwickshire CV22 7SA (GB) (For All Designated States Except US).
KAO, Tseng, Kuan [CN/GB]; (GB) (For US Only).
THORPE, William, Anthony [GB/GB]; (GB) (For US Only).
STEPTOE, Colin [GB/GB]; (GB) (For US Only).
FENTON, Marcus, Brian, Mayhall [GB/GB]; (GB) (For US Only)
Inventors: KAO, Tseng, Kuan; (GB).
THORPE, William, Anthony; (GB).
STEPTOE, Colin; (GB).
FENTON, Marcus, Brian, Mayhall; (GB)
Agent: DRURY, Peter, Lawrence; T & N plc, Bowdon House, Ashburton Road West, Trafford Park, Manchester M17 1RA (GB)
Priority Data:
9524853.0 05.12.1995 GB
Abstract: front page image
(EN)A disc brake rotor (10; 50) provides two oppositely-facing annular friction surfaces (20, 22). The rotor (10; 50) comprises a first portion (16) which provides one of said annular surfaces (20), and a second portion (18) which provides the other of said annular surfaces (22). The first and second portions (16, 18) are arranged in spaced parallel relationship and are joined by vanes (32) between which are defined cooling ducts (34). The ducts (34) extend radially of the rotor (10; 50) and are arranged so that, as the rotor (10; 50) is rotated, air passes through the ducts (34) and acts to cool the rotor (10; 50). In order to increase cooling efficiency, the transverse cross-sectional area of each duct (34) decreases progressively between an inlet (36) to the duct (34) and an intermediate region (40) thereof and increases between said intermediate region and an outlet (38) of the duct (34).
(FR)Un rotor (10, 50) de frein à disque comporte deux surfaces de friction (20, 22) annulaires se faisant face. Une de ces surfaces annulaires (20) appartient à une première partie (16) du rotor et l'autre de ces surfaces annulaires appartient à une seconde partie (18) du rotor. Lesdites première et seconde parties (16, 18) sont parallèles, à distance l'une de l'autre, et réunies par des ailettes (32) entre lesquelles sont définis des conduits de ventilation (34). Ces conduits (34) sont disposés radialement par rapport au rotor (10, 50) et sont agencés de telle sorte que, lorsque le rotor (10, 50) tourne, l'air passe à travers lesdits conduits (34) et refroidit le rotor (10, 50). De façon à accroître l'efficacité du refroidissement, la section transversale de chaque conduit (34) diminue progressivement entre un orifice d'entrée (36) du conduit (34) et une région intermédiaire (40) du conduit et elle croît entre ladite région intermédiaire et un orifice de sortie (38) du conduit (34).
Designated States: AM, AT, AU, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LK, LR, LT, LU, LV, MD, MG, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN.
African Regional Intellectual Property Organization (KE, LS, MW, SD, SZ, UG)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)