Abstract: Convective cooling of a distribution transformer is enhanced by use of magnetic fluid which has a magnetically driven flow pattern in the form of a plurality of vertically stacked magnetic circulation cells with convective heat transfer being enhanced by modifying the configuration of a proximate transformer wall to facilitate the transfer of heat from the magnetic fluid to the wall and then to the ambient air.
Type:
Grant
Filed:
June 17, 1997
Date of Patent:
April 27, 1999
Assignee:
Electric Power Research Institute
Inventors:
Tahir Cader, Samuel Bernstein, Clayton Crowe
Abstract: A conforming filter for a video display unit (VDU). The VDU includes a cathode ray tube (CRT) with a curved faceplate and an aperture defining bezel. The filter includes a plastic substrate having a thickness between about 0.8 and 1.2 mm. The thickness is such that the filter may be made to substantially conform to the curvature of a cathode ray tube faceplate. The filter may be assembled in a VDU by removing the bezel, locating the filter adjacent the CRT, and applying pressure around a perimeter region of the filter to cause it to substantially conform to the curvature of the faceplate. The filter may be retained in a conforming position adjacent the faceplate by the bezel. The filter may also be attached to a bezel having a curved surface. The filter conforms to the curvature of the surface when then attached.