METHOD AND DEVICE FOR ACTIVELY SUPPRESSING PRESSURE OSCILLATIONS IN A HYDRAULIC SYSTEM
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United States of America Patent
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Issued Date -
Jan 5, 2012
app pub date -
Nov 30, 2009
filing date -
Dec 5, 2008
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Abandoned
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Abstract
In a method and a device for actively suppressing pressure oscillations or pressure pulses in a hydraulic system of a cold or warm roll train or a strip treatment installation, the following method steps are carried out: a) detection of a pressure signal by means of a pressure sensor by permanent measurement of a pressure in the hydraulic system; b) determination of an alternating component of the pressure signal; c) determination of at least one temporally changing actuating variable in real time with the aid of a regulator, taking at least one setpoint value and the alternating component into consideration; d) loading of at least one actuator with the actuating variable, the actuator changing a volume which corresponds to the actuating variable and is connected to the hydraulic system, as a result of which the pressure oscillations in the hydraulic system are suppressed.
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