B - Operations – Transporting – 61 – F
Patent
B - Operations, Transporting
61
F
B61F 5/30 (2006.01) B61F 5/52 (2006.01)
Patent
CA 2593147
This invention relates to bogies for railway rolling stock. In particular it relates to suspension arrangements for such bogies wherein the frame is mounted on a spring suspension arrangement. In one embodiment the spring suspension arrangement comprises two groups of springs on either side of a wheel axle (11) , each group comprising an inner spring (14) and two outer fore and aft springs (15, 16). In another arrangement there are two lower springs (14) on either side of a wheel axle (11) and at least one upper spring (21) above the axle. The arrangements described provide better lateral and longitudinal stiffness and shear characteristics which, reduce hunting and wheel wear. They also enable the axles to accommodate increased loads.
L'invention concerne des bogies pour matériel roulant ferroviaire. Notamment, cette invention a pour objet des dispositifs de suspension destinés à de tels bogies, dont le cadre est monté à un dispositif de suspension à ressort. Dans un mode de réalisation, le dispositif de suspension à ressort comprend deux groupes de ressorts sur un des côtés d'un axe de roues (11), chaque groupe comprenant un ressort interne (14) et deux ressorts longitudinaux externes (15, 16). Dans un autre dispositif, deux ressorts inférieurs (14) se situent sur un des côtés d'un axe de roues (11) et au moins un ressort supérieur (21) au-dessus de l'axe. Ces dispositifs engendrent une meilleure rigidité latérale et longitudinale et des caractéristiques de cisaillement qui permettent de diminuer le pompage et l'usure des roues, lesdits axes pouvant loger des charges accrues.
Hewitt Paul
Jamieson Wayne
Mcfadden Fincham
Sct Technology Llc
LandOfFree
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