Abstract: The invention relates to an air diverter for a vehicle cooling system. There is a need for an improved vehicle cooling system. An air diverter is provided for a vehicle cooling system having a radiator, a fan for moving air through the radiator and a cooling unit positioned in front of the radiator with respect to air moving through the radiator. The fan is surrounded by a fan shroud. The air diverter includes a collector and a conduit. The collector is positioned between the cooling unit and the radiator. The collector receives a portion of air which passes through the cooling unit. The conduit extends around an edge of the radiator and communicates air from the collector to the interior of the fan shroud while bypassing the radiator.

Abstract: The invention relates to a variable belt drive. There is a need for an improved variable belt drive. A variable belt drive includes a non-rotating piston housing which forms three piston bores. A rotatable input shaft is coupled to a power source and is supported by bearings in the piston housing. A first sheave is mounted for rotation with the shaft and is fixed axially to the shaft. A second sheave is mounted for rotation with the shaft and is slidable axially on the shaft. A piston is movable in each piston bore in response to fluid pressure. A non-rotating carrier engages an end of each the pistons. A thrust bearing has an outer race fixed to the carrier and an inner race fixed to the second sheave and rotatable with the second sheave. The carrier includes an annular surface which engages an outer surface of the outer race. An O-ring is received in a groove in the annular surface and engages the outer race to resist rotation of the outer race.

Abstract: The invention relates to an air diverter for a vehicle cooling system. There is a need for an improved vehicle cooling system. An air diverter is provided for a vehicle cooling system having a radiator, a fan for moving air through the radiator and a cooling unit positioned in front of the radiator with respect to air moving through the radiator. The fan is surrounded by a fan shroud. The air diverter includes a collector and a conduit. The collector is positioned between the cooling unit and the radiator. The collector receives a portion of air which passes through the cooling unit. The conduit extends around an edge of the radiator and communicates air from the collector to the interior of the fan shroud while bypassing the radiator.

Abstract: A vehicle cooling package has a fan shroud mounted to a heat exchanger assembly. A diverter plate is mounted adjacent to the shroud and spaced therefrom with a fan interposed therebetween. A diverting surface of the shroud and the diverter plate are angled from the axis of the fan when the shroud and plate are assembled to the vehicle. A vehicle hood has upper and side surfaces each having air discharge apertures corresponding with the space between the diverting surface and the diverter plate when the hood is closed. The diverting surface and the diverter plate both extend fully to the hood assembly when the hood is closed. The angles of the diverting surface and the diverter plate closely match a natural discharge angle of the fan, so that air is discharged from the fan at a high velocity from under the hood through the air discharge apertures.