Patent ID: 9109715
Filing Date: 2015-08-18
Classification: B05B,F16K

Abstract:
1. A resonant valve having: an enclosed volume coupled to a pressurized gas inlet and having an outlet surrounded by a seal in contact with a flange part of a movable flyer plate; a cylindrical electromagnetic coil carrying a pulsatile current for generating eddy currents in said movable flyer plate flange; a spring coupled to an opposite surface of said movable flyer plate from said seal and generating a spring force against said seal; said outlet coupled to a stilling volume and to an aperture; where said movable flyer plate mass, said pulsatile current, and the spring constant of said spring are selected such that said flyer plate flange eddy currents flow in a first direction which generates a repelling magnetic force on said movable flyer plate which overcomes the force of said spring and sufficient to separate said movable flyer plate flange from said seal during a first interval of time sufficient to generate supersonic gas flow from said aperture, where the force of said spring in a subsequent interval closes said flyer plate against said seal.