(57) A twin-engined two-axled central bogie for railway and for tramway vehicles with
two or more articulated bodies, including two cross members (1, 2) carrying the wheels
(9) and pivotably interconnected by means of two side members (3), and a central longitudinal
structure (4) whose ends (4c) rest on two pneumatic springs (12, 13) carried by respective
central platforms (5, 6) formed by the cross members. The central structure carries
means for the articulated connection of the articulating ends (E₁, E₂) of the bodies
of the vehicle, and there are provided tie means (20) for connecting the two cross
members to this structure in order to prevent longitudinal movement, as well as lateral
restraining means (23, 24) for limiting transverse movement.
Two drive motors (50, 51), situated at the sides of the bogie and resiliently connected
to the side members, drive the wheels (9) of the respective sides through longitudinal
drive-shafts (55, 56) and geared reduction units (57).
A differential (58) may be coupled to each motor to divide the drive between the wheels
on the respective side.
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