Abstract: A centrifugal fan assembly including a housing having a lower surface and a parallel inlet wall that defines an inlet opening. A shaft is supported by the housing for rotating about an axis. A plurality of fan blades are disposed about the shaft and extend radially from the axis for drawing air axially into the fan blades and blowing air radially outwardly. The housing defines a scroll wall that spirals about the axis and defines an outlet air passage that extends substantially tangentially to the axis. The fan blades include extensions that extend through the inlet opening and outside of the inlet wall.

Abstract: A centrifugal fan assembly including a housing having a lower surface and a parallel inlet wall that defines an inlet opening. A shaft is supported by the housing for rotating about an axis. A plurality of fan blades are disposed about the shaft and extend radially from the axis for drawing air axially into the fan blades and blowing air radially outwardly. The housing defines a scroll wall that spirals about the axis and defines an outlet air passage that extends substantially tangentially to the axis. The fan blades include extensions that extend through the inlet opening and outside of the inlet wall.

Abstract: A casing for a heat exchange system defines a blower compartment (18), an evaporator compartment (20), and a diffuser (22). The diffuser (22) defines an exit (28) and an entry area in a cutoff plane (30). A vane wall (38) curves inwardly from the diffuser (22) and includes a plurality of parallel vanes (46), (48), (50), and (52). The plurality of vanes (46), (48), (50), and (52) include a first vane (46) and a second vane (48).

Abstract: A casing for a heat exchange system defines a blower compartment (18), an evaporator compartment (20), and a diffuser (22). The diffuser (22) defines an exit (28) and an entry area in a cutoff plane (30). A vane wall (38) curves inwardly from the diffuser (22) and includes a plurality of parallel vanes (46), (48), (50), and (52). The plurality of vanes (46), (48), (50), and (52) include a first vane (46) and a second vane (48).

Abstract: An air partitioning device for a vehicle heating, ventilation, and air-conditioning system to divide a hot air stream into separate portions comprises an L-shaped front portion including a base leg and a dividing leg, and also comprises a tail portion extending from a back of the front portion, the tail portion oriented angularly to the dividing leg.

Abstract: An air partitioning device for a vehicle heating, ventilation, and air-conditioning system to divide a hot air stream into separate portions comprises an L-shaped front portion including a base leg and a dividing leg, and also comprises a tail portion extending from a back of the front portion, the tail portion oriented angularly to the dividing leg.

Abstract: An HVAC housing includes a novel structure to aid the mixing of hot and cold air downstream of the evaporator and heater core. A series of space, parallel, C shaped channels running transverse to the cold air stream and generally in line with the hot air stream act to smoothly constrict the cold air stream in the gaps between the outer surfaces of the channels, while hot air concurrently runs through the inside of the channels. As the cold air passes over the edges of the channel walls, hot air is drawn out and thoroughly mixed.