Patent ID: 7152421

Claim:
A system for conditioning the atmosphere of an enclosed space, such as a vehicle, a truck, a boat, or a temporary building, comprising: a power unit, having an engine, an electric generator turned by said engine, a means to transfer heat, and having wiring, outlets, a battery connected to said engine, controls, and a housing; an evaporator unit, having a blower, a motor for said blower, an evaporator coil plumbed to said heat transfer means, and having wiring, a filter ahead of said coil, and a housing encasing said evaporator unit and having a service door; and, one or more electronic circuits connecting said power unit and said evaporator; whereby, said power unit operates said engine to turn said generator thus powering said heat transfer means and said power unit attaches to said enclosed space; whereby, said evaporator unit operates electrically from said generator to add heat to said enclosed space upon said controls calling for heat or to cool said enclosed space upon said controls calling for cooling; whereby, said power unit is less than two feet in length, width, or height and said evaporator unit is less than three feet in length, width, or height; thus, said system cools or heats the atmosphere of an enclosed space independently of the power for the enclosed space; wherein said heat transfer means having a gridwork in communication with the atmosphere, a compressor that compresses a refrigerant, a condenser fan powered by an electric motor, a condenser coil, a reversing valve plumbed with said compressor, and a thermistor sensor controlling the speed of said compressor; whereby for heating said enclosed space, said condenser fan draws air into said power unit, over said compressor and said engine, passing through said condenser coil heating said refrigerant and through said gridwork, and said refrigerant passes through said evaporator coil over which said blower moves air from the enclosed space for heating; and, whereby for cooling said enclosed space, said blower draws air from said enclosed space over said evaporator coil heating a refrigerant then sent to said condenser coil and said condenser fan blows atmospheric air over said condenser coil cooling the refrigerant later compressed in said compressor, and returned to said evaporator unit to cool said enclosed space.