Patent ID: 8104559
Filing Date: 2012-01-31
Classification: F01P

Abstract:
1. An air flow system for cooling components of a vehicle including a vehicle engine, the vehicle having an engine compartment and a cooling system compartment, an engine compartment wall between the engine compartment and at least portions of the cooling system compartment, a first annular shroud mounted in the cooling system compartment, a single axial flow fan positioned in the first shroud, the first shroud surrounding fan blades of the axial flow fan, and having air flow openings for air flow in an axial direction of the fan, a second shroud open to one of the air flow openings of the first shroud and the second shroud having a second shroud air flow opening carrying air flow therefrom, an engine cooling opening in the engine compartment wall open to an interior of the second shroud to permit air flow between the engine compartment and the second shroud, a flow duct extending from the engine compartment and through an opening in a portion of an annular wall in the first shroud on an opposite side of the fan from the second shroud, and a motor to drive the fan to generate air flow between the first and second shrouds and through the engine cooling opening and the flow duct.