FIELD: engines and pumps.
SUBSTANCE: proposed device comprises excitation coil arranged coaxially and coupled with the rod and magnetic core. In compliance with this invention, it is equipped with transformer with primary. Note here that said excitation coil is magnetically connected with transformer primary.
EFFECT: higher efficiency, longer life, lower costs.
3 dwg
Authors
Dates
2014-03-10—Published
2012-10-19—Filed