WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |

Search International and National Patent Collections
World Intellectual Property Organization
Machine translation
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1997/040292    International Application No.:    PCT/GB1997/000938
Publication Date: 30.10.1997 International Filing Date: 02.04.1997
Chapter 2 Demand Filed:    22.10.1997    
F15C 3/06 (2006.01), F16H 15/38 (2006.01), F16H 61/662 (2006.01)
Applicants: TOROTRAK (DEVELOPMENT) LIMITED [GB/GB]; 3 Titan Way, Leyland, Lancashire PR5 3QW (GB) (For All Designated States Except US).
GREENWOOD, Christopher, John [GB/GB]; (GB) (For US Only).
INUI, Masaki [JP/JP]; (JP) (For US Only).
PATTERSON, Mervyn, John, George [GB/GB]; (GB) (For US Only).
TATARA, Yudai [JP/JP]; (JP) (For US Only)
Inventors: GREENWOOD, Christopher, John; (GB).
INUI, Masaki; (JP).
PATTERSON, Mervyn, John, George; (GB).
TATARA, Yudai; (JP)
Agent: TREVOR-BRISCOE, David, William; British Technology Group Limited, Patents Dept., 10 Fleet Place, London EC4M 7SB (GB)
Priority Data:
9608146.8 19.04.1996 GB
Abstract: front page image
(EN)A variator assembly comprises a variator of the toroidal-race rolling-traction type using double-acting pistons to control the rollers and differential end load pressure to load the variator, and control means operative to vary the differential end load pressure in sympathy with changes in the net pressure exerted by the roller-control pistons so as to maintain the traction coefficient at the roller disc interface consistently below the limit at which traction would be lost.
(FR)Un ensemble variateur comprend un variateur du type roulement-traction à cage toroïdale ayant recours à des pistons à double effet pour commander des rouleaux et la pression de charge extrême différencielle pour charger le variateur, ainsi que des moyens de commande permettant de faire varier la pression de charge extrême différentielle de concert avec les changements de pression nette exercée par les pistons de commande des rouleaux afin de maintenir le coefficient de traction au niveau de l'interface rouleau-disque en permanence sous la limite à laquelle il y aurait perte de traction.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, 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 (GH, KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
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)