Patent ID: 6949131
Filing Date: 2005-09-27
Classification: F24F,F28D,F28F,Y02B

Abstract:
1. A ventilating apparatus comprising a main housing, a thermal exchanger, a first air-moving device, a second air-moving device, and a removable air-filter, said main housing comprising a front housing portion, a rear housing portion, a first air compartment, a second air compartment and a filter compartment, said thermal exchanger being of a cross-flow type and comprising an intake section and an exhaust section, wherein thermal energy can exchange between air in said intake section and air in said exhaust section without mixing, said first and second air compartments forming separate enclosed air channels which cross at said thermal exchanger without mixing, said first air-compartment being in communication with said intake section of said thermal exchanger and said second air-compartment being in communication with said exhaust section of said thermal exchanger, the downstream end of said first air compartment being in communication with said front housing portion and the upstream end of said second air compartment begins at said front housing portion, said first and said second air-moving devices being respectively for moving air along said first and said second air compartments, said first and said second air-moving devices being driven by a common motor axle, said second air-moving device being intermediate said first air-moving device and said thermal exchanger, the combination of said thermal exchanger and said first and second air-moving devices being intermediate said front and rear housing portions, said first air-moving device and said intake section of said thermal exchanger is interconnected by a portion of said first air compartment, wherein the portion of said first air compartment interconnecting said first air-moving device and said intake section of said thermal exchanger being intermediate said second-air moving device and said rear housing portion, wherein, said removable air-filter is at the upstream end of said first air-moving device and is removable from said front housing portion.