Abstract: A drive device includes a motor with two sets of motor windings and a control unit. The control unit has a board on which an electronic component related to energization control of the motor windings are mounted, a connector unit, and a cover member that covers control components including the board, and is provided on one side in a axial direction of the motor. The connector unit has two main connectors and at least one sub connector used for connection with an outside, and these openings are provided so as to face a side opposite to the motor. The main connectors are connected with a power supply and a communication network. The sub connector has an opening separate from that of the main connector and is connected to a separate member.

Abstract: A natural gas liquefying apparatus is provided. At least a part of a cooling region, in which a precooling unit and a liquefaction unit are arranged, and at least a part of a compression region, in which first and second compressors compressing refrigerants to be used in the precooling unit and the liquefaction unit are arranged, are arranged to be opposed to each other across a long side of a second refrigerant cooler group arrangement region in which a liquefying refrigerant is cooled. A first refrigerant cooler group arrangement region, in which a precooling refrigerant is cooled, is arranged so that a long side of the first refrigerant cooler group arrangement region is opposed to one side of a rectangular region including the compression region, the one side being different from a side of the rectangular region opposed to a long side of the second refrigerant cooler group arrangement region.