Patent ID: 7836992

Claim:
A drive train for an all-wheel drive motor vehicle, the drive train comprising: a drive engine ( 100 ) having a torque-producing crankshaft ( 101 ) which is one of directly coupled to an input shaft ( 201 ) of a central transmission ( 200 ) and is actively connected, via a drive-transmitting starting element ( 102 ), with the input shaft ( 201 ) of the central transmission ( 200 ); an output shaft ( 202 ) of the central transmission ( 200 ) being arranged substantially along a longitudinal axis ( 600 ) of the vehicle; first and second drive axles ( 400 , 500 ) being arranged substantially normal to the longitudinal axis ( 600 ) of the motor vehicle; a transfer box ( 300 ) comprising an input shaft ( 301 ), a central differential ( 310 ) and first and second output shafts ( 302 , 303 ); the input shaft ( 301 ) of the transfer box ( 300 ) being connected to the output shaft ( 202 ) of the central transmission and drivingly connected to an input element ( 311 ) of the central differential ( 310 ); the first output shaft ( 302 ) of the transfer box ( 300 ) being connected to a first output element ( 312 ) of the central differential ( 310 ) and, via a first axle differential ( 410 ), drivingly connected to the first drive axle ( 400 ); the second output shaft ( 303 ) of the transfer box ( 300 ) being connected to a second output element ( 313 ) of the central differential ( 310 ) and to a Carden shaft ( 513 ); the first and the second output elements ( 312 , 313 ) of the central differential ( 310 ) and the first and the second output shafts ( 302 , 303 ) of the transfer box ( 300 ) being arranged coaxially with one another; the Cardan shaft ( 513 ) being drivingly connected, via a second axle differential ( 510 ), to the second drive axle ( 500 ); the first and the second output shafts ( 302 , 303 ) of the transfer box ( 300 ) are at an angle with respect to the output shaft ( 202 ) of the central transmission ( 200 ); and a beveloid spur drive ( 320 ), with two meshing spur gears ( 321 , 322 ), is arranged in a power flow between the input shaft ( 301 ) of the transfer box ( 300 ) and the central differential ( 310 ), and a spur gear ( 321 ) connected on a drive input side of the spur drive ( 320 ) to the input shaft ( 301 ) of the transfer box ( 300 ) is a cylindrical gear and the spur gear ( 322 ) connected to the input element ( 311 ) of the central differential ( 310 ) on a drive output side of the spur drive ( 320 ) is a bevel gear.