Patent ID: 8858168

Claim:
A method for assembling a ventilation system, said method comprising: providing an enclosure that includes an inlet and an outlet; positioning a ventilation hood within the enclosure, wherein the ventilation hood includes a cover portion and a discharge portion extending from the cover portion, wherein the discharge portion includes a first end, a second end, and a body extending therebetween, the cover portion including a first aperture, an opposite second aperture, and a cavity therein, and wherein an interior of the discharge portion is in flow communication with the cover portion cavity; coupling the discharge portion first end to the cover portion; coupling the discharge portion second end to the enclosure outlet such that fluid is channeled through the discharge portion first end and is discharged through the discharge portion second end; coupling an acoustic liner to an inner surface of the discharge portion; and coupling a first shaft and a second shaft of a rotatable member together, wherein the first shaft extends from the ventilation hood towards a turbine and the second shaft extends from the ventilation hood towards a load, and wherein the first and second shafts are rotatably coupled together within the ventilation hood with a coupler, wherein the rotatable member does not include an impeller coupled thereto, wherein the rotatable member extends at least partially through the first and second ventilation hood apertures and through a first enclosure opening and a second enclosure opening that are each separate from the enclosure inlet, and such that only the rotation of the first and second shafts induce a windage-driven flow of fluid that forces fluid into the enclosure from outside the enclosure through the enclosure inlet, into the cover portion cavity of the ventilation hood from inside the enclosure through the first and second ventilation hood apertures, and to the outside of the enclosure through the enclosure outlet all in succession.