Patent ID: 8468843

Claim:
An air-conditioning system for temperature control of a vehicle, said vehicle has an engine, said system comprising: a thermostat having thermostat contacts; and a refrigerant circulation contour including: a condenser, having an inlet port and an outlet port; an expansion valve substantially connected with said outlet port of the condenser; an evaporator connected with said expansion valve; a common line having an input aperture and an output aperture, a first tee splitter connected to said common line, a second tee splitter connected by a line to said inlet port of the condenser; a main compressor of the vehicle having a main input port connected with the first tee splitter and a main output port connected with the second tee splitter; and a supplemental compressor of the vehicle having a supplemental input port removably connected with the first tee splitter and a supplemental output port removably connected with the second tee splitter; wherein: said supplemental compressor is electrically connected with a supplemental battery; said supplemental compressor is operatively controlled by said thermostat by means of a control circuitry, comprising: a power relay having power relay contacts, and an air-condition relay having air-condition relay contacts; said power relay is fed from the supplemental battery through: said thermostat contacts, said air-condition relay contacts, and an operative switch sequentially connected with said supplemental battery; and wherein: the control circuitry is configured to operate such that: during normal operation, when the vehicle is moving, the operative switch is in an off position such that the refrigerant cannot circulate via the supplemental compressor; when the vehicle is parked, said engine and said main compressor are turned off and the operative switch is in an on position so that the supplement compressor is operative; and, during movement, if the vehicle is in high cooling demand, the operative switch is in the on position, and the main compressor and the supplemental compressor operate in parallel.