Patent ID: 7163384

Claim:
A reciprocating compressor with a linear motor, comprising: a shell; and a motor-compressor assembly including: a reference assembly affixed inside the shell and formed by a motor and a cylinder; a resonant assembly formed by a piston reciprocating inside the cylinder, and by an actuating means operatively coupling the piston to the motor; and a resonant spring means, under constant compression, which is simultaneously mounted to the resonant assembly and to the reference assembly, and which is resiliently and axially deformable in the displacement direction of the piston, wherein the spring means is mounted to the actuating means by the mutual seating of a pair of supporting surface portions, at least one of the latter being operatively associated with one of the parts of the spring means and the actuating means, against a respective pair of convex surface portions, each of the latter being operatively associated with the other of said parts, the convex surface portions being symmetrical and opposite in relation to the axis of the cylinder, the supporting surface portions and the convex surface portions being mutually seated and operatively associated with the respective parts of the spring means and the actuating means, in order to transmit, by the mutually seated surface portions, the opposite axial forces actuating on said parts, with such intensity as to minimize the occurrence of moments on the piston.