Patent ID: 9518572
Filing Date: 2016-12-13
CPC Classification: F04B,Y10T

Claim Text:
1. A linear compressor, comprising: a driving coil; an inner back iron assembly positioned in the driving coil, the driving coil operable to move the inner back iron assembly along an axis during operation of the driving coil, the inner back iron assembly extending between a first end portion and a second end portion, the inner back iron assembly comprising an outer cylinder and a sleeve, the outer cylinder having an outer surface and an inner surface positioned opposite each other, the outer cylinder comprising a plurality of laminations distributed circumferentially about the sleeve, the sleeve mounted to the outer cylinder at the inner surface of the outer cylinder; a magnet mounted to the inner back iron assembly at the outer surface of the inner back iron assembly such that the magnet faces the driving coil, the magnet positioned in a recess defined by the laminations of the outer cylinder such that the magnet is inset within the outer cylinder; a machined spring comprising a piston head connected to the inner back iron assembly; and a cylinder assembly defining a chamber, wherein the piston head is slidably received within the chamber.