Patent ID: 6749043
Filing Date: 2004-06-15
Classification: F04D

Abstract:
An apparatus for at least partially normalizing an axial flow velocity distribution of a flow of cooling air supplied by a fan to a locomotive dynamic braking grid resistor stack, the apparatus comprising:a duct bounding the flow of cooling air; and a flow turning vane comprising a corner member disposed proximate a corner of the duct and disposed remote from a center portion of the flow of cooling air and spaced apart from the duct to allow a portion of the flow of cooling air to pass between the corner member and the corner, the corner member extending into a relatively higher velocity annular portion of the flow of cooling air and having a downstream portion disposed closer to the corner than an upstream portion for directing a portion of the cooling air from the relatively higher velocity annular portion of the flow of cooling air into a relatively lower velocity corner portion of the flow of cooling air without restricting the center portion of the flow of cooling air.