<p>The present invention provides a pumping system (60) comprising: a pumping mechanism (64); a motor (51) for driving the pumping mechanism; a drive control (50) for controlling the motor; and means (52) for monitoring at least one state within the system; wherein, to improve the performance of the system, the drive control causes the system to operate for transient periods in an overload condition which can result in said monitored state exceeding a predetermined operational limit, and when operating in said overload condition said drive control controls the power to the motor dependent on the level of said monitored state thereby avoiding said state from exceeding said operational limit.</p>
申请公布号
WO2005075827(A1)
申请公布日期
2005.08.18
申请号
WO2005GB00272
申请日期
2005.01.27
申请人
THE BOC GROUP PLC;PHILIPPE, LAURENT, MARC;WILDER, ANTHONY, JOHN