Hydraulic gear box device for e.g. construction vehicle, has pumping gear wheels of gear pumps, that are located on the axial displaceable shaft

摘要

The hydraulic gear box device has a housing (10) comprising a gear pump (11) which is provided for generating a operating pressure, and a gear pump (12) which is provided for generating an output torque. The gear pumps are formed as external gear pumps. The pumping gear wheels (14,15) of gear pumps are located on the axial displaceable shaft (13).