SUPPRESSING DEVICE FOR A VERTICAL PUMP, VERTICAL PUMP AND METHOD FOR RETROFITTING A VERTICAL PUMP
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United States of America Patent
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app pub date -
Feb 3, 2016
filing date -
Feb 18, 2015
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Abstract
A suppressing device shifts a structural natural frequency of a pump, the pump including a pumping unit with an inlet and an impeller, a discharge unit with an outlet, a drive unit for rotating the impeller, a column pipe extending in an axial direction and having at least one column element with an axial length, the column pipe connecting the pumping unit with the discharge unit, and a line shaft extending within the column pipe operatively connecting the drive unit with the pumping unit. The suppressing device includes at least one rib extending essentially in a radial direction, and is perpendicular to an axial direction of the suppression device. The suppression device has an extension extending in the axial direction of the suppressing device, is at least half the axial length of the column element, and is configured to closely fit around an entire circumference of the column element.
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