Patent ID: 7072445

Claim:
A computed tomography (CT) imaging system comprising a gantry member, said gantry member having a rotating frame member; an x-ray tube positioned on said frame member; a heat exchanger positioned on said frame member adjacent said x-ray tube and adapted to cool said x-ray tube; at least one fan member positioned adjacent said heat exchanger and adapted to flow air through said heat exchanger; and an air deflector member positioned on said heat exchanger for preventing recirculation of heated air through said fan member; said heat exchanger having an upper perimeter surface, a lower perimeter surface, a first end perimeter surface and a second end perimeter surface, and said air deflector member being positioned on said upper perimeter surface; said upper perimeter surface and said lower perimeter surface each having a curved configuration; said air deflector member having a curved configuration substantially the same as said curved configuration of said upper perimeter surface and positioned to extend in a direction substantially parallel to the axis of rotation of said fan member.