Reciprocating compressor

Abstract

A reciprocating compressor includes a suction port, through which a working gas is taken into a cylinder volume, which is closed and opened by a suction valve, and a discharge port, through which the working gas compressed by a reciprocating piston is emitted toward an end use, which is closed and opened by a discharge valve, wherein the maximum discharge pressure determined by a compression ratio which is calculated by the ratio of the cylinder volume in a case where the piston is located at the bottom dead center position and the cylinder volume in a case where the piston is located at the top dead center position, is set so as to be compatible with the demand pressure of said gas end use.

1 . A reciprocating compressor comprising;
 a suction port, through which a working gas is taken into a cylinder, wherein the suction port is opened/closed by a suction valve;   a discharge port, through which the working gas compressed by a reciprocating piston is emitted toward an end use, wherein the discharge port is opened/closed by a discharge valve; and   a cylinder volume setting mechanism that determines a cylinder volume of the cylinder;   wherein a maximum discharge pressure determined by a compression ratio, which is calculated by the ratio of the cylinder volume in a case where the reciprocating piston is located at the bottom dead center position of the cylinder and the cylinder volume in a case where the reciprocating piston is located at the top dead center position of the cylinder, is set by the cylinder volume setting mechanism so as to be compatible with the demand pressure of the gas end use.   
   
   
       2 . The reciprocating compressor of  claim 1 , further comprising a cylinder-cover which puts the lid on said cylinder, wherein the cylinder-cover is of a boxy type, and wherein within the cylinder cover a suction chamber is connected to said suction port and is juxtaposed with a discharge chamber connected to said discharge port. 
   
   
       3 . A reciprocating compressor comprising;
 a suction port, through which a working gas is taken into a cylinder volume of a cylinder, wherein the suction port is opened/closed by a suction valve; and   a discharge port, through which the working gas compressed by a reciprocating piston is emitted toward an end use, wherein the discharge port is opened/closed by a discharge valve;   wherein said suction port and said suction valve are at an upper part of a suction side of a cylinder-wall of said cylinder;   wherein said discharge port and said discharge valve are at the upper part of a discharge side of the cylinder-wall of said cylinder; and   wherein a discharge chamber is at the above-mentioned discharge side of said cylinder-wall and is connected to said discharge port.   
   
   
       4 . A reciprocating compressor comprising;
 a suction port, through which a working gas is taken into a cylinder volume of a cylinder, wherein the suction port is opened/closed by a suction valve; and   a discharge port, through which the working gas compressed by a reciprocating piston within the cylinder is emitted toward an end use, wherein the discharge port is opened/closed by a discharge valve;   wherein the suction port, which is opened and shut by said suction valve, is placed at a top wall of said piston that faces with said cylinder volume;   wherein an inhalation passage connected to said suction port is provided inside said piston;   wherein said discharge port and said discharge valve are at an upper part of a cylinder-wall of said cylinder; and   wherein a discharge chamber is connected to said discharge port.   
   
   
       5 . The reciprocating compressor of  claim 1 , wherein the cylinder volume setting mechanism includes: a second cylinder volume located by the upper part of a cylinder-wall of the cylinder, which is connected to the cylinder volume, and a piston that is capable of adjusting the second cylinder volume. 
   
   
       6 . The reciprocating compressor of  claim 2 , wherein the cylinder volume setting mechanism comprises a spacer located between the cylinder and the cylinder-cover.