B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
B61C9/08—Transmission systems in or for locomotives or motor railcars with IC reciprocating piston engines
B61C9/10—Transmission systems in or for locomotives or motor railcars with IC reciprocating piston engines mechanical
Variateur de couples mécanique équipé d'un arbre moteur et un dispositif de pression comprimant des galets coniques étagés modifiant la rotation coaxiale de l'arbre de transmission et le couple reçu.