Reciprocating compressor with linear motor

Abstract

A reciporcating compressor with a linear motor, comprising a pair of pistons (4) provided inside a cylinder (3) and axially aligned to each other, at least one of said pistons (4) being provided with a discharge valve (10) for controlling the discharge of the gas admitted inside the cylinder (3) through said piston (4).

Description

technical field [0001] The invention relates to a reciprocating compressor for a refrigeration system having two pistons driven by a linear motor. Background technique [0002] The reciprocating compressor with two pistons driven by a linear motor, compared with a conventional compressor with a rotary motor, has fewer parts that move relative to each other, saving the power loss of the bearing. [0003] Reciprocating compressors driven by linear motors are known, which have two pistons reciprocating in the same cylinder axially aligned with each other, in which compressor construction the suction and compression operations of the gas are performed by The relative axial movement of the two pistons in the cylinder is caused by the mutual separation and approaching movement. The above-mentioned pistons are respectively connected to the corresponding driving device. The driving device is tubular and located outside the cylinder. The piston is driven in the axial direction when ...

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Problems solved by technology

In this case, however, a certain volume is formed in the area of ​​the vent hole between the pistons, resulting in a constant loss of productivity (Fig. 1)

[0009] In addition to these disadvantages, another disadvantage of the prior art construction is that the exhaust holes are located on the side of the cylinder, which, at the end of compression, impairs the discharge of gas in the area diametrically opposite to the exhaust holes formed on the cylinder

These effects, either in combination or individually, reduce the volumetric productivity of the compressor

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