Hydrostatic transmission having integrated pressure compensated load sensing auxiliary pump
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United States of America Patent
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Feb 21, 2012
Grant Date -
N/A
app pub date -
Dec 17, 2003
filing date -
Dec 17, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hydrostatic transmission using a hydrostatic pump, a hydrostatic motor, and a pressure compensating load sensing auxiliary pump. The hydrostatic pump is fluidly connected to the hydrostatic motor using fluid lines and a center section. The hydrostatic pump additionally has an input shaft that drives the hydrostatic pump to provide the hydrostatic motor with power. Additionally, the pressure compensating load sensing auxiliary pump is in line with the hydrostatic pump and is rotated with the input shaft. This configuration allows the input shaft to operate the power takeoff (PTO) shaft while the hydrostatic motor output shaft operates the axles of a vehicle via a differential.
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