Work machine including hydrostatic ground drive which...

Details Work machine including hydrostatic ground drive which... Work machine including hydrostatic ground drive which...

2011-08-23

2011-08-23

Dickson, Paul N (Department: 3611)

Motor vehicles

Having four wheels driven

Including pump and fluid motor, or generator and electric...

C180S243000, C180S305000

Reexamination Certificate

active

08002069

ABSTRACT:
A work machine having a mechanical transmission in combination with a hydrostatic ground drive including a primary drive and a secondary drive engageable for providing additional propulsion torque in a power assist mode, the hydrostatic drive automatically providing an increased torque capability when the transmission is engaged in a high speed range, thereby allowing the work machine to accelerate from a complete stop to a high speed range with the transmission in a high speed range without the need to stop to shift the mechanical transmission to accommodate an increased propulsion torque requirement.

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