초록 ▼

An air conditioner is provided which is mounted on the rooftop of a recreational vehicle to provide cooling of an interior space within the vehicle. The air conditioner has a single motor that mounts both a centrifugal fan and an axial fan for rotation about a vertical axis. The centrifugal fan is p

An air conditioner is provided which is mounted on the rooftop of a recreational vehicle to provide cooling of an interior space within the vehicle. The air conditioner has a single motor that mounts both a centrifugal fan and an axial fan for rotation about a vertical axis. The centrifugal fan is positioned within an evaporator compartment that contains an evaporator for providing cooling of an air stream drawn therethrough. The centrifugal fan draws warm air from within the interior space of the vehicle into the evaporator compartment where it passes through the evaporator and is then drawn axially through a center opening into the centrifugal fan. The cooled air is expelled tangentially from the centrifugal fan and is redirected downwardly by a surrounding scroll and delivered to the interior space for cooling thereof. The axial fan is positioned in a condenser compartment where it draws outdoor air through a condenser for heat exchange therewith. The outdoor air is then exhausted vertically upward through a opening in an outer shroud. Because the fans are mounted for vertical rotation, their diameters are not constrained by the vertical dimension of the air conditioner. A pump is also provided to deliver external condensate from the evaporator to an exhaust side of the axial fan. A plurality of the air conditioners can be stacked one on top of the other during shipping by using plugs which upwardly from the shroud and are received within hole or recesses formed in a base pan of the overlying air conditioner.

대표청구항 ▼

1. A vehicle rooftop air conditioner comprising:a base pan having one or more openings forming a return air intake and a conditioned air outlet; a compression refrigeration system supported on the base pan comprising a compressor, evaporator and condenser operatively coupled together; a first enclos

1. A vehicle rooftop air conditioner comprising:a base pan having one or more openings forming a return air intake and a conditioned air outlet; a compression refrigeration system supported on the base pan comprising a compressor, evaporator and condenser operatively coupled together; a first enclosure forming a conditioned air flow plenum above said base pan, said evaporator being located within said first enclosure and being operable for heat transfer with an indoor air stream flowing therethrough; a centrifugal fan positioned within said first enclosure and operable to draw indoor air from the return air intake, through the evaporator and then into the centrifugal fan for tangential discharge in a substantially horizontal plane; a scroll positioned about the centrifugal fan and forming an air passage for receiving the air tangentially discharged from the centrifugal fan and redirecting it in a downward direction to the conditioned air outlet; a second enclosure forming an outdoor air flow plenum above said base pan, said condenser being located within said second enclosure and being operable for heat transfer with an outside air stream flowing therethrough; a second fan positioned and operable to draw air through said condenser; and a motor having a drive shaft on which said centrifugal fan and said second fan are mounted for rotation about a vertical axis.