US 12,434,558 B1
Drive axle assembly, interaxle differential assembly, and integrated interaxle bevel gear and input side gear
Sean Skinner, Martinsburg, WV (US); Nicholas Lieberum, York Springs, PA (US); and Zachary Lambertus, Chambersburg, PA (US)
Assigned to Volvo Truck Corporation, Gothenburg (SE)
Filed by VOLVO TRUCK CORPORATION, Gothenburg (SE)
Filed on Jun. 12, 2024, as Appl. No. 18/741,340.
Int. Cl. B60K 17/36 (2006.01); B60K 23/08 (2006.01); F16H 48/08 (2006.01); F16H 48/24 (2006.01)
CPC B60K 17/36 (2013.01) [F16H 48/08 (2013.01); F16H 48/24 (2013.01); B60K 23/08 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A drive axle assembly, comprising:
an input shaft;
an output shaft;
an interaxle differential comprising a case of the interaxle differential, at least one spider gear rotatable about an axis perpendicular to the input shaft and attached to the case of the interaxle differential, an output side gear in meshing engagement with the at least one spider gear and non-rotatably mounted on the output shaft, and an integrated interaxle differential bevel gear and input side gear assembly rotatably supported on the input shaft, the input side gear being in meshing engagement with the at least one spider gear;
an interwheel differential assembly arranged to receive torque from the interaxle differential bevel gear of the integrated interaxle differential bevel gear and input side gear
assembly, the interwheel differential assembly including a differential gear on which one or more spider gears are mounted for rotation about an axis perpendicular to an axis of the differential gear;
left and right drive wheels; and
left and right drive axles defining a drive axle axis disposed on the axis of rotation of the differential gear and directly connected to the left and right drive wheels, respectively,
wherein a toe of the integrated interaxle bevel gear faces a heel of the integrated interaxle input side gear.