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New Side-By-Side Electromagnetic Actuator Got Patented

Recently, Calnetix Technologies, a leading manufacturer in the development and manufacture of high-speed permanent magnet motor generators, power electronics and magnetic meeting the demands of a variety of applications and industries, has obtained a patent for its Powerflux side-by-side combination electromagnetic actuator developed by Principal Research Engineer Alexei Filatov. This is the sixthU.S.patent Filatoy received since he joined Calnetix in September of 2002.

The Powerflux side-by-side electromagnetic actuator is a combination of radial and axial force generation functions integrated into one device with a unique and high-efficiency manner. There is no doubt that the actuator will be significantly beneficial to the company’s industry-leading magnetic bearing technology, and it has been already put into use in several programmes.

According to Filatoy, the design of the Powerflux side-by-side electromagnetic actuator takes many advantages over arrangements of separate axial and radial actuators, such as the improved rotordynamic response, shorter rotor length, lower aerodynamic drag, lower negative stiffness, easier assembly and a reduced part which is expected to lower production costs.

Besides, the brand-new designs significantly improves the axial bandwidth and rotordynamic characteristics compared to previous designs of the combination bearing, and this makes the actuator more suitable for compressor and expander applications.

(Edited by Eloise Tsai)

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