Patent ID: 9407194
Filing Date: 2016-08-02
CPC Classification: F04B,F04C,H02H,H02P

Claim Text:
1. A compressor comprising: a single-phase electric motor driving a compression mechanism, the electric motor having a rotor and a stator, the stator being comprised of aluminum windings; and a protector device, attached to the stator, configured to disconnect the electric motor from a power supply when an input voltage of the power supply to the electric motor is less than a threshold voltage value set at a level between a minimum run voltage and an overheat voltage of the compressor, the overheat voltage corresponding to an overheat temperature of the electric motor; wherein the threshold voltage value is set at a level that is between the minimum run voltage and the overheat voltage and wherein the protector device includes a tolerance level such that the threshold voltage minus the tolerance level is greater than the overheat voltage and such that the threshold voltage plus the tolerance level is less than the minimum run voltage.