PISTON COMPRESSOR WITH ELECTRODYNAMIC DRIVE Russian patent published in 1995 - IPC

FIELD: compressor engineering. SUBSTANCE: pickups of shaft end position are connected with DC power source through respective winding for moving the armature. Inductive windings are wound on rods to define opposite poles at the tips. The piston is constructed as two magnetic conductors with inductive coils connected in series. The magnetic conductors are separated from each other by an insulator, the coils being wound to define analogous poles on end faces of the piston and connected to terminals of the switch of the current direction. The inductive windings are connected with the terminals of the DC power source. Conductive rods are mounted over the axis of the cylinder and separated from each other by an insulator. The ends of the rods are connected with the terminals of the DC power source. The inductive coils are connected to the terminals of the source by sliding contacts provided on the conducting rods. EFFECT: enhanced efficiency. 2 cl, 4 dwg