Patent ID: 7431073

Claim:
A cooling system for a work vehicle, comprising: a blower having an inlet and an outlet; at least one heat exchanger; and a separation chamber, the separation chamber having at least a screen with a predetermined mesh, a first sidewall, a second sidewall, a third sidewall, a fourth sidewall, a first end, a second end, a first end wall and a second end wall, the first end having a first cross-sectional area, the second end having a second cross-sectional area, the second end wall having a chamber outlet orifice, the first sidewall having an orifice containing the at least one heat exchanger, the at least one heat exchanger arranged such that air may flow through the at least one heat exchanger from an area inside the separation chamber to an area outside the separation chamber, the second sidewall being in proximity to the outlet and arranged such that air leaving the outlet flows substantially tangential to the surface of the second sidewall, the blower blowing air from the first end to the second end, the chamber outlet orifice large enough to allow a passage of debris, the blower hurling debris away from a center of the blower and along the second sidewall toward the chamber outlet orifice, the chamber outlet orifice being small enough to produce a backpressure of sufficient level to cause a predetermined amount of air to flow through the at least one heat exchanger from the area inside the separation chamber, the screen spanning a length and width of the separation chamber, the screen located between the first sidewall and the second sidewall, the screen being above the outlet and above the chamber outlet.