Anti-stall pilot pressure control system for open center systems
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United States of America Patent
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-
Jan 23, 2007
Grant Date -
Jul 28, 2005
app pub date -
Nov 9, 2004
filing date -
Nov 10, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydraulic control system has a pilot pressure supply circuit that applies a pressure differential dependent on engine speed to opposite sides of an anti-stall valve to turn off the pilot flow when the pressure differential falls below a certain value, resulting in holding the positions of the hydraulic devices being controlled until engine speed recovers.
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