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OwnerOtto J. M. Smithinventor
Estimating the term…
Apparatus for driving a three-phase compressor assembly from a single-phase electrical power supply having first and second power lines, said three-phase compressor assembly comprising a compressor having a rotatable shaft, an electrical motor having a rotatable shaft coupled to the rotatable shaft of the compressor, the electrical motor having at least first, second and third motor windings and having at least first, second and third terminals connected to the first, second and third windings, means adapted to connect the first and second power lines of the single-phase power supply to the first and second terminals and a torque augmentation circuit for injecting current into the third terminal and including a capacitor and an electrical component in series with the capacitor, said electrical component having resistive characteristics and having means for essentially interrupting the current being injected into the third terminal.
A rotary induction machine with three windings of different phases, an electrical alternating single-phase supply, a sensor switch, means to control a power contactor responsive to said switch, means to energize said machine responsive to said contactor, a first positive-temperature-coefficient thermistor means to augment the machine currents during starting, a second positive-temperature-coefficient thermistor means responsive to the state of said machine, and means after the de-energization of said contactor to delay the re-energization of said contactor responsive to said second positive-temperature-coefficient thermistor.
A method for starting and running a rotary induction machine comprising:
An apparatus comprising:
In a rotary induction machine including three windings of different phases, a power contactor, a sensor switch, and first and second positive-temperature-coefficient thermistors, a method for starting and running said three-phase rotary induction machine with said three windings of different phases from an external single-phase alternating electrical power supply having first and second line terminals, said method comprising:
Dependencies are inferred from the claim text.