Patent ID: 7806229

Claim:
A fan powered silencing terminal unit comprising: a centrifugal fan; a housing comprising a cutoff plate and a blower outlet and containing said centrifugal fan; a first casing comprising a plenum and said housing, said first casing containing an inlet and an outlet; a second casing comprising a silencing portion and containing at least one baffle, said second casing containing an inlet and an outlet; wherein said blower outlet is connected to the outlet of said first casing; wherein the outlet of said first casing is directly coupled to the inlet of said second casing; wherein said silencing portion contains an air pathway; wherein said at least one baffle comprises an edge; wherein a silencer inlet extension connects said edge of said at least one baffle to the cutoff plate of said housing, and wherein said silencer inlet extension extends partially into the plenum; and wherein the air pathway of said silencing portion is angled or curved to substantially minimize the line-of-sight pathway from said blower outlet to the outlet of said silencing portion.