Friday, November 6, 2009

Improperly Designed Winterfronts Can Cause Fan Failures

Published Thursday, December 06, 2007

Did you know that improperly designed winterfronts can cause fan failures? Some vehicle and engine manufacturers don’t allow the use of winterfronts, and other require specific designs. The problem occurs when users install older winterfronts with V-shaped openings. These designs allow air flow through a wedge at the top and/or bottom of the grill and block flow at the sides. As the fan rotates, each blade alternately passes through areas of high and low air resistance, which makes the blade flex back and forth rapidly and can result in metal fatigue failures. Some newer winterfront designs have a ...

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