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US 6,445,101 B2Granted
Clutchless motor drive system
AssigneeGeneral Electric Company
InventorBruce C. Ley
Life of this patent
Estimating the term…
Abstract
A motor drive system includes an electric motor including a rotor shaft, a first main winding and a second main winding. The first and second main windings are selectively energizable to operate the motor at first and second speeds, and at least one of the windings is a permanent split capacitor winding. A transmission is coupled to the rotor shaft, and the rotor shaft engages the transmission without employing a clutch mechanism.
Claims23
A motor drive system comprising:
- an electric motor including a rotor shaft, a first main winding and a second main winding, said first and second main windings selectively energizable to operate the motor at first and second speeds, at least one of said windings comprising a permanent split capacitor winding;
- and
- a transmission coupled to said rotor shaft, said shaft engaging said transmission without employing a clutch mechanism.
A vertical axis washing machine comprising;
- a cabinet housing;
- a clothes basket disposed within said cabinet housing;
- and
- a two speed electric motor mounted within said cabinet, said motor including a vertically oriented rotor shaft, a first main winding and a second main winding, at least one of said windings comprising a permanent split capacitor winding, said motor drivingly engaging said clothes basket without employing a clutch mechanism.
1 more element
An appliance comprising:
- a cabinet housing;
- a rotatable element situated within said cabinet housing for rotary movement to execute an appliance operational cycle;
- an electric motor coupled to said cabinet for driving engagement of said rotatable element, said motor comprising at least one winding configured as a permanent split capacitor winding, said motor operable in a first mode at a first speed and a second mode at a second speed, said motor configured for motor startup in said first mode of operation and configured for startup in said second mode of operation, wherein said motor is configured for motor startup without employing a clutch mechanism.
Dependencies are inferred from the claim text.