DUAL PUMP DRIVE SYSTEM FOR COMPACT CONSTRUCTION VEHICLES

摘要

A compact construction vehicle (10) includes a pump drive system (100) including an engine (101) having a flywheel (105). A first pump assembly (130) is coupled directly to the flywheel such that a rotation coupled directly to the flywheel such that a rotation rate of the first pump assembly is the same as a rotation rate of the flywheel. A power transfer system (107) is coupled directly to the flywheel and provides a rotation rate which is different than the rotation rate of the flywheel. A second pump assembly (140) is coupled to the power transfer system such that a rotation rate of the second pump assembly is the same as the rotation rate of the power transfer system. One of the first and second pump assemblies provides power for travel of the compact construction vehicle, while the other of the first and second pump assemblies provides power for a work group (17) of the compact construction vehicle.