Motors & Drives Information

Chorus Motors plc, a subsidiary of Borealis Exploration Limited (BOREF), announces that a patent, titled "Polyphase Induction Electrical Rotating Machine", No. 6,351,095, was issued by the United States Patent and Trademark Office on February 26th, 2002.

Further patent applications related to the Chorus(R) technology and polyphase motors are pending.

The Chorus(R) Motor uses new controllers and windings to substantially increase the efficiency of AC motors. For more information about Chorus(R) see the Chorus Motors plc web site at www.chorusmotors.gi. The new patent and other issued Chorus(R) patents are available on the web site.

Characteristics of the Chorus(R) Motor include very high start-up torque and greater efficiency, within standard operating temperature limits. Tests have shown marked improvements over conventional AC motors. Chorus(R) Motors are especially well-suited to traction applications, such as hoists, conveyors, electric and hybrid-electric vehicles.

The patent describes a new type of AC induction motor that can be operated at high saturation levels, substantially beyond those associated with conventional AC motors. The Chorus(R) motor also allows high flux densities, which greatly enhances the power output when operated under saturation. This in turn leads to the very high start-up torque characteristic of Chorus(R) drives.

Isaiah W. Cox, President of Chorus Motors plc, says "This patent extends our very broad coverage of the Chorus family of motor drive technologies. The benefits of very high start-up torque to industry are numerous - for example, traction motors may be sized closer to the optimum size for continuous running, while still retaining the necessary output torque for frequent starting and stopping under load."

# posted by Medical Information : 3:59 AM