Linear generator with a swinging piston

摘要

An electromechanical energy converter for a gaseous or vaporous medium comprising a stator ( 1 ) with two pot-shaped stator members ( 1 a , 1 b), each open at one end face and adjoining each other at these end faces, the stator members surrounding a working space ( 12 ) and forming a common magnetically permeated air gap ( 7 ) in which a coreless armature coil ( 25 ) is displaceably arranged. Arranged in the working space ( 12 ) is a freely oscillating piston ( 14 ) linked to the armature coil ( 25 ). Furthermore, at least one source ( 21 a , 21 b) for the medium, two reaction chambers ( 66 a , 66 b) each assigned to a head ( 15 a , 15 b) of the piston ( 14 ) and control means ( 17 a , 19 a , 22 a , 23 a ; 17 b , 19 b , 22 b , 23 b) assigned to the reaction chambers ( 66 a , 66 b) for self-control of the piston oscillations are provided, by means of which the reaction chambers ( 66 a , 66 b) may be opened to the source ( 21 a , 21 b) during the piston oscillations for accepting medium under pressure, and to the working chamber ( 12 ) for releasing expanded medium (FIG. 11).