Browse Prior Art Database

Fan Vibration Isolator

IP.com Disclosure Number: IPCOM000101014D
Original Publication Date: 1990-Jun-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Anderson, TH: AUTHOR

Abstract

Disclosed is a device that supports an axial airflow cooling fan at its usual four mounting holes. The isolator provides effective and consistent vibration isolation between the fan and the supporting structure, reducing transmitted noise caused by out-of-balance fans and bearings.

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This is the abbreviated version, containing approximately 100% of the total text.

Fan Vibration Isolator

       Disclosed is a device that supports an axial airflow
cooling fan at its usual four mounting holes.  The isolator provides
effective and consistent vibration isolation between the fan and the
supporting structure, reducing transmitted noise caused by
out-of-balance fans and bearings.

      The fan isolator shown in the figure provides a means to fasten
the fan to a supporting member or frame without screws or fasteners.
This results in low assembly and parts costs.  Tapered pull tabs are
provided on each end of the isolator for ease in pulling each end
through either the fan mounting hole or supporting structure.

      The supporting diameter of the fan is relieved to reduce the
radial stiffness.  The retaining side of the isolator is also
relieved in the form of a cross to reduce the axial stiffness.  Once
the pull tabs are stretched through the holes, the fan is positively
retained.  The same isolator may also be used to fasten a fan guard,
as shown in the figure. The ends of the tabs may be cut off after
assembly when required for clearance.

      Reference
U.S. Patent 4,442,367.