DUAL MOTOR SYSTEM

A dual motor system includes a first motor providing a lower speed range and a second motor providing a higher speed range, wherein the motors are coaxially arranged and aligned on and drive a common shaft, and a motor control system controlling the speed of the first motor and engaging the second m...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Coupart, Eric, Schrader, John G, Bastien, Ryan M, Belley, Richard A
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING BUILDING BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS FENCING FIXED CONSTRUCTIONS GENERATION HEATING INDUCTANCES LIGHTING MAGNETS MASTS MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SWIMMING OR SPLASH BATHS OR POOLS TENTS OR CANOPIES, IN GENERAL TRANSFORMERS WEAPONS
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Beschreibung
Zusammenfassung:	A dual motor system includes a first motor providing a lower speed range and a second motor providing a higher speed range, wherein the motors are coaxially arranged and aligned on and drive a common shaft, and a motor control system controlling the speed of the first motor and engaging the second motor as needed. The first motor is a variable speed motor providing a lower two-thirds of a full speed range, and the second motor is an induction motor providing the upper one-third in the form of one or more discrete fixed speeds. The system may include a transformer including a first winding tap which provides a first higher speed, and a second winding tap which provides a second higher speed. The system may also include a flow control system for automatically controlling the speed of the motors for particular applications, such as flow control in a pool.