Electric drive system for track-laying vehicles
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United States of America Patent
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Mar 23, 1993
Grant Date -
N/A
app pub date -
Jul 11, 1991
filing date -
Jul 11, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electric drive system for tracklaying vehicles includes a pair of electric motors and an infinitely variable speed, hydromechanical steering transmission including a pair of hydrostatic propulsion units and a plurality of planetary gears sets. The hydrostatic units are driven by one or both of the electric motors to produce separate hydrostatic propulsion outputs which are combined with the mechanical outputs of the motors by the planetary gear sets to generate separate hydromechanical propulsion outputs on right and left transmission output shafts for vehicle propulsion and steer in two speed ranges.
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