A hybrid power train for farm tractors, wherein the elements defining at least
one of the electric machines are housed in a structural casing formed in one piece.
The structural casing forms an integral part of the supporting structure of the
tractor in the form of a half-shell open on one side, so as to permit assembly
of an insulating element, a stator, and a shaft fitted with a respective rotor
to form the electric machine part of the hybrid power train. The diesel engine
of the agricultural tractor is mechanically connected to the Power take-off mechanism
by routing the PTO shaft through a number of hollow shafts for transmitting power
from the diesel engine to and from the two electric machines by means of a conventional
epicyclic gear train.
