Transfer case for regenerative hydraulic drive

Details Transfer case for regenerative hydraulic drive Transfer case for regenerative hydraulic drive

2005-10-19

2008-09-16

Ho, Ha D. (Department: 3681)

Planetary gear transmission systems or components

Variable speed or direction transmission combined with...

Variable speed or direction is planetary transmission

C475S213000

Reexamination Certificate

active

07425183

ABSTRACT:
A regenerative drive system for heavy duty vehicles such as truck tractors having a conventional internal combustion engine and transmission includes a regenerative hydraulic motor and a transfer case. The transfer case has a chain drive coupling the output of the hydraulic motor to the input of a planetary gear speed reduction assembly. The output of the planetary gear assembly is provided to a modulating friction clutch pack which selectively couples the output of the planetary gear assembly to the transmission output and drives the differential and rear vehicle wheels.

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