Patent ID: 7972203
Filing Date: 2011-07-05
Classification: B60S

Abstract:
1. A vehicle in combination with an air flow device for generating an air flow across and in front of a windshield of a vehicle, the air flow device comprising: one or more means for generating an air flow located in proximity on a lateral end or side of the windshield, the one or more means for generating an air flow directing the flow of air laterally onto the front of the windshield, wherein the one or more means for generating an air flow has a plurality of fans positioned on the end or lateral side of the windshield, each fan having a plurality of fan blades, the blades having a first end radially close to the axis of rotation, a second end radially opposite the first end and a middle part in between the first and second end, the blades further having a cross section that is radially continuously changing such that the middle part having a wider cross section compared to the second end which cross section is reduced and narrower than the cross section of the middle part, the blades rotatable about an axis for intaking an air flow near the axis of rotation of the fan blade, the air impinging a center internal lower portion of the fan blades adjacent a hub centered on the axis of rotation, the air flow moving initially perpendicular to the fan blades, the air flow impinges upon the internal lower portion of the blade and as the blade extends outwardly from the hub centered on the axis of rotation, the blade curves extending over itself to form an upper portion of the blade starting from the hub, the blade forms an air path extending longitudinally to an open end, the air flow being turned to follow the path of the spinning blades, the fan blades extending longitudinally having a cross section of increasing curvature to a substantially reduced sized terminal open end for capturing and re-directing and accelerating the air flow laterally across a windshield of a moving or stationary vehicle to form an air shield or barrier in front of the windshield.