Reciprocating compressor

Abstract

A reciprocating compressor includes a driving unit (16) having an outer stator (26) and an inner stator disposed at a predetermined air gap there between, and a moving member positioned between the outer stator (26) and the inner stator (28) and linearly and reciprocally moved; a compression unit (18) having a cylinder (38) fixed at an inner circumferential surface of the inner stator (28) and a piston (22) linearly moved in the cylinder (38) by being connected to the moving member; a support portion (20) supporting the compression unit (18) and the driving unit (16); and a resonant spring unit positioned (24) at a rear portion of the driving unit (16), disposed at the support portion (20), and inducing a resonant movement of the piston (22). Therefore, a resonant spring (62,64) of the compressor can be moved horizontally and straight forwardly by reducing a torsion moment of the resonant spring (62,64), a width of the compressor can be reduced, and a concentricity of a driving unit (16) and a compression unit can be maintained.

Description

technical field [0001] The invention relates to a reciprocating compressor, and more particularly to a reciprocating engine of compact size and improved performance. Background technique [0002] figure 1 is a sectional view showing a reciprocating compressor according to one example of the conventional art. [0003] A traditional reciprocating compressor includes a closed casing, a suction pipe 102 and a discharge pipe 104 are respectively connected to the casing; a drive unit 108 is arranged in the casing 105 and generates reciprocating force a compression unit 110 that is transmitted to the reciprocating force generated by the drive unit 108 and compresses the fluid; a support portion 112 that supports the drive unit 108 and the compression unit 110 . [0004] The drive unit 108 includes an outer stator 116 fixed on the support portion 112 and having a powered winding coil 114; an inner stator 118 disposed on the inner peripheral surface of the outer stator 116 with a p...

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to adjust the concentricity of the drive unit 109 and the compression unit 110, and thus causes a reduction in assembly quality.

[0018] That is to say, although the concentricity of the inner and outer stators 116 and 118 of the driving unit 108 has been adjusted, the concentricity of the piston 124 of the driving unit 108 and the compression unit 110 must be readjusted, and thus the assembly is difficult.

[0019] In addition, since the driving unit 108 and the compressing unit 110 are arranged at the front and rear of the housing 106, respectively, even if the concentricity of the moving member 122 is slightly shifted during the operation of the compressor, the concentricity of the piston 124 will be seriously disturbed. deviate from

This causes the cylinder and 130 to collide with the piston 124, and as a result, the performance of the compressor deteriorates

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