F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 47/08 (2006.01) F16H 3/66 (2006.01) F16H 3/72 (2006.01) F16H 3/74 (2006.01)
Patent
CA 2220669
A continuously variable transmission having viscous couplings (64, 46, 48) and planetary gearsets (20, 62, 92) with input on sun gear (30) with starting viscous coupling (46) for low speed starting while the variable ratio viscous coupling (48) controls the output speed ratio. The reversible viscous coupling (64) is controlled for reverse. Full engagement of the variable ratio viscous coupling (48) causes maximum output speed.
L'invention porte sur une transmission à variation continue (64, 46, 48) comportant plusieurs couplages visqueux (64, 46, 48) et un ensemble de trains planétaires (20, 62, 92) à transmission de puissance par la roue solaire (30). Le couplage visqueux de départ (46) assure le démarrage à faible vitesse (46) et le couplage visqueux à rapport variable (48) commande le rapport des vitesses de sortie. Le couplage visqueux réversible (64) est doté d'une commande d'inversion. La vitesse maximale de sortie est atteinte lorsque le couplage visqueux à rapport variable (48) fonctionne à plein.
Johnston Thomas A.
Mccarthy Tetrault Llp
LandOfFree
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