Electronic bore pressure optimization mechanism
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United States of America Patent
Stats
-
Jan 28, 2003
Grant Date -
Aug 8, 2002
app pub date -
Mar 7, 2001
filing date -
Feb 2, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic bore pressure optimization mechanism for dynamically varying the cylinder block piston bore pressure profile in a multiple piston hydraulic unit includes a valve means having a variable orifice disposed in the end cap for metering fluid between leading and trailing pistons in a transition region or between a piston in a transition region and a high or low pressure source; and means for generating a control error signal to the valve means so as to adjust the size of the variable orifice based upon the control signal.
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