초록 ▼

A housing has a first side and a second side. A first opening is disposed in the first side. A second opening and a third opening are disposed in the second side. An enthalpy wheel has a first side facing surface and an opposite second side facing surface. The enthalpy wheel is rotatably mounted wit

A housing has a first side and a second side. A first opening is disposed in the first side. A second opening and a third opening are disposed in the second side. An enthalpy wheel has a first side facing surface and an opposite second side facing surface. The enthalpy wheel is rotatably mounted within the housing. Approximately half of the second side facing surface of the enthalpy wheel is in fluid communication with the second opening. Approximately the remaining half of the second side facing surface is in fluid communication with the third opening. Substantially the entire first side facing surface is in fluid communication with the first opening. A first fan is mounted within the housing adjacent to the second opening. A second fan is mounted within the housing adjacent to the third opening. A partition is disposed in the housing between a predetermined location on the second side of the housing between the second opening and the third opening and extends to the enthalpy wheel to define, in part, a first air flow path and a second air flow path within the housing. The first air flow path extends between the second opening through the enthalpy wheel to the first opening. The second air flow path extends between the first opening through the enthalpy wheel to the third opening. In a preferred embodiment, the ratio of air flow through the first air flow path to air flow through the second air flow path ranges from about 65% to about 85%.

대표청구항 ▼

[ What is claimed is:] [1.] A fresh air supply unit comprising:a housing having a first side and a second side, a first opening being disposed in said first side, a second opening and a third opening being disposed in said second side;an enthalpy wheel having a first side facing surface and an oppos

[ What is claimed is:] [1.] A fresh air supply unit comprising:a housing having a first side and a second side, a first opening being disposed in said first side, a second opening and a third opening being disposed in said second side;an enthalpy wheel having a first side facing surface and an opposite second side facing surface, said enthalpy wheel being rotatably mounted within said housing, approximately half of said second side facing surface being in fluid communication with said second opening, approximately the remaining half of said second side facing surface being in fluid communication with said third opening, substantially the entire first side facing surface being in fluid communication with said first opening;a partition being disposed in said housing between a predetermined location on said second side of said housing between said second opening and said third opening and extending to said enthalpy wheel to define, in part, a first air flow path and a second air flow path within the housing, said first air flow path extending between said second opening through said enthalpy wheel to said first opening, said second air flow path extending from said first opening through said enthalpy wheel to said third opening; anda heater being disposed within said housing in said first air flow path.