Stirling Technology Company

Escue Research and Development Company

Syed A Nasar

Ion Boldea

Linear electrodynamic machine and method of making and using same

A linear electrodynamic machine includes mover and stator assemblies. The stator assembly includes an inner stator and an outer stator for defining a closed loop magnetic flux path. A magnet mounted on an outside portion of the stator assembly produces a constant flux extending through the magnetic flux path. The inner and outer stators form at least one pair of aligned spaced apart magnetic poles forming a gap. A group of slugs mounted on the mover assembly moves into and out of the gap to interact electrodynamically with the magnetic flux within the gap.

Linear electrodynamic machine and method of using same

A new and improved linear motor and method of using it for producing a sufficient reciprocating thrusting action to enable well fluids be pumped through the production tubing of a well to the ground surface. The linear motor includes a mover and a stator, said stator including a set of coils for producing a series of electromagnetic field extending at least partially in an axial direction when energized with an electric current and a stator core defining a plurality of spaced-apart transversely disposed coil receiving slots and an annular axially extending mover receiving bore. The mover includes an elongated member mounted telescopically reciprocatively within the mover receiving bore and a plurality of permanent magnets interleaved with low reluctance spacers for helping to reduce core flux density in order to improve overall motor performance.

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Lexington, KY, United States of America

Syed A Nasar