Patent ID: 8776541

Claim:
A refrigeration system ( 20 ) comprising: an engine ( 30 ); an electric generator ( 32 ) mechanically coupled to the engine to be driven by the engine; a compressor ( 120 ), electrically coupled to the generator to be powered by the generator; a heat rejection heat exchanger ( 128 ) coupled to the compressor to receive compressed refrigerant from the compressor; an expansion device ( 144 ) coupled to the heat rejection heat exchanger to expand refrigerant received from the heat rejection heat exchanger; a heat absorption heat exchanger ( 148 ) coupled to the expansion device to receive refrigerant expanded by the expansion device and, in turn, coupled to the compressor to return refrigerant to the compressor; at least one first electric fan ( 129 ) positioned to drive an airflow ( 500 ) across the heat rejection heat exchanger and coupled to the generator to receive electric power from the generator; at least one second electric fan ( 149 ) positioned to drive an airflow ( 502 ) across the heat absorption heat exchanger and coupled to the generator to receive electric power from the generator; and a controller ( 100 ) coupled to the compressor and first and second fans and configured to: start the engine; engage the generator and at least one of the first fans before the engine has reached running speed; after the engine has reached running speed, start the compressor; and after starting the compressor, start at least one of the second fans.