Reciprocating compressor

Abstract

A reciprocating compressor is disclosed which has a valve construction using plural discharge ports, plural reed valves and plural valve backers to lower the discharge resistance and improve the compression efficiency. The reciprocating compressor (1000) has within a closed vessel (900) a reciprocating compressing section (300) for compressing a required fluid, the reciprocating compressing section (300) comprising a discharge unit for discharging the fluid and a valve assembly (500) for opening and closing the discharge unit, with a plurality of discharge ports (522A, 522B) being formed in the valve assembly, the valve assembly (500) comprising valve members (560), the valve members (560) comprising reed valves (530A, 530B) disposed correspondingly to the discharge ports (522A, 522B) and valve backers (540A, 540B) disposed respectively on back sides of the reed valves, a valve seat (520) having a recess for receiving the valve members therein, and valve members fixing means for urging end sides of the valve members to fix the valve members elastically to fixing portions (523A, 523B) of the recess.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a reciprocating compressor to be used, for example, for compressing a refrigerant in a home refrigerator. Particularly, the present invention is concerned with an improvement of a valve assembly portion which is for opening and closing a discharge unit in a compressing section. [0003] 2. Description of the Prior Art [0004] A reciprocating compressor of this type has such a schematic construction as FIG. 1 which illustrates a compressor 1000. [0005] In FIG. 1, the compressor 1000 comprises an assembly. According to the construction of this assembly, a motor section 200 is driven by electric power fed from a power dispatching section 100 which supplies electric power 101. A reciprocating compressing section 300 is connected to the motor section 200 to compress a refrigerant fluid which is introduced from an intake path 601 in an intake section 600 through a valve assembly 500. The refr...

AI Technical Summary

Benefits of technology

[0010] It is an object of the present invention to provide a reciprocating compressor using a valve construction provided with plural discharge ports, reed valves and restriction / repulsion pieces (hereinafter referred to as “valve backers”), thereby decreasing the discharge resistance and improving the compression efficiency.

[0016] With the valve members fixing means, the valve members can be fixed elastically to the fixing portions of the recess. Moreover, with the elasticity of the valve backers, restriction and repulsive return of the reed valves are performed to afford an effect of enhancing the efficiency of a pressurizing operation. Further, since the valve assembly adopted uses a valve construction provided with plural discharge ports and also provided correspondingly with reed valves and valve backers, there is attained an outstanding effect such that it is possible to lower the discharge resistance and improve the compression efficiency.

[0018] By disposing the fulcrum portions in the fixing portions of the recess through the valve members fixing means, it is possible to fix the valve members easily and positively. Besides, the reed valves when opened can each be allowed to perform such a motion as the letter S being stretched obliquely and the head portion twisted. In resistance to such a cubically complicated way of bending an internal stress is stored in the reed valves themselves and the valve backers, and with the resulting repulsive force it is possible to further increase the reed valve return speed, thus affording a further outstanding effect that the compression efficiency can be further improved.

[0020] Since the reed valves open while being bent in opposite directions, the collision of refrigerant gases discharged from the reed valves is diminished and the discharge resistance is made still lower, thus affording a further outstanding effect that the compression efficiency can be further improved.

[0022] There can be obtained a further outstanding effect that the valve members can be fixed to the aforesaid recess easily and positively by one valve members fixing means.

Problems solved by technology

Therefore, in a compressor provided with such a valve assembly, the discharge resistance is still high, resulting in a lowering of the compression efficiency, and thus there has been room for improvement.

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