Constructive arrangement for a resonant compressor

Abstract

A constructive arrangement for a resonant compressor comprising a shell (1), within which are mounted: a non-resonant assembly formed by a motor and a cylinder (2), said motor having a coil (6) generating a magnetic flow that travels through the shell (1); a resonant assembly formed by a piston (10) reciprocating inside the cylinder (2) and by an actuating means (3) operatively coupling the piston (10) to the motor, said arrangement comprising a magnetic insulating means, which is affixed to one of the parts defined by the shell (1), by the resonant assembly, and by the non-resonant assembly, and which is arranged so as to interrupt the magnetic flow path between the shell (1) and at least one of the parts defined by the piston (10) and the cylinder (2) in a direction substantially parallel to the displacement direction of the piston (10).

Description

FIELD OF THE INVENTION [0001] The present invention refers, generally, to a constructive arrangement for a resonant compressor of the type driven by a linear motor, to be applied to refrigeration systems and presenting a piston reciprocating inside a cylinder. BACKGROUND OF THE INVENTION [0002] In a reciprocating compressor driven by a linear motor, the gas suction and gas compression operations are performed by the reciprocating axial movements of each piston inside a cylinder, which is closed by a cylinder head and mounted within a hermetic shell, in the cylinder head being positioned the suction and discharge valves that control the admission and discharge of the gas in relation to the cylinder. The piston is driven by an actuating means that supports magnetic components operatively associated with a linear motor affixed to the shell of the compressor. In some known constructions, each piston-actuating means assembly is connected to a resonant spring affixed to the hermetic shell...

AI Technical Summary

Benefits of technology

[0007] Thus, it is an object of the present invention to provide a constructive arrangement for a resonant compressor, which without causing energetic losses during the movement of the piston, minimizes the presence of Foucault currents in a closed circuit with the components of the compressor.

[0008] A further object is to provide an arrangement such as mentioned above, which minimizes the presence of Foucault currents, without increasing the cost of the compressor and making impractical its manufacture. SUMMARY OF THE INVENTION

Problems solved by technology

This magnetic circuit causes the generation of Foucault currents in these components, generating electric losses in the compressor.

However, producing components with such materials, which are very expensive, sometimes makes economically impractical the manufacture of the compressor.

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