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AssigneeHitachi Industrial Equipment Systems Co., Ltd.
InventorsChikara NAKAMURA, Yusuke WATABE, Norio AOYAGI, Nobuo HINATA
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A compressor includes an electric motor, a compressor body that is actuated by the electric motor and has a compressor mechanism for discharging compressed air, and a control unit for controlling operation of the electric motor. The control unit stops operation of the electric motor when a discharged pressure from the compressor body reaches a predetermined stop pressure, causes the electric motor to operate when the discharged pressure reaches a predetermined return pressure lower than the stop pressure, and raises the return pressure when an ambient air temperature around the compressor body becomes equal to or lower than a predetermined temperature threshold value.
A compressor comprising:
A method of controlling a compressor including an electric motor and a compressor body that is actuated by the electric motor and has a compressor mechanism for discharging compressed air, the method comprising:
Dependencies are inferred from the claim text.