U-Bend Tube Compression/Distortion Stabilization System (CDSS)
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United States of America Patent
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Issued Date -
Jan 16, 2014
app pub date -
Jun 26, 2013
filing date -
Jul 13, 2012
priority date (Note) -
Abandoned
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Abstract
This patent discloses and claims a system for providing in-plane stabilization to the tubes of a heat exchanger. The system increases the friction between the tubes and the existing anti-vibration bars by pressing the tube bundle together in the out-of-plane direction. The invention involves a structure that develops forces by reacting either off the inner diameter of the tube bundle wrapper, or off an assembled stressor hoop, which is self-supporting on top of the tube bundle, or involves purposely deforming connecting hoops to bias the anti-vibration bars in a way that the tube U-bend is no longer planar. It imposes a controlled clamping and/or deforming force on the tube bundle, either by direct contact with the outer tubes or indirectly via the existing anti-vibration bar structure.
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