| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide drier equipment having a simple structure, preventing rising of its own costs, reducing the frequency of occurrence of failures and permitting operation of the body of the drier without the loss associated with the fact that a dried gas is used partly as a reuse gas and then emitted into the atmosphere and a four-way selector valve for the equipment. <P>SOLUTION: In a compressor 1 and drier equipment 2 for the compressor having the first drier 4 and the second drier 5, ports A to D are provided so that the port A is connected with the outlet of the compressor 1, the port B with a drying gas outlet 6, the port C with the first drier 4, and the port D with the second drier 5. Also provided is a port-changing means 8 changing between a state that the port A communicates with the port C and the port B communicates with the port D and a state that the port A communicates with the port D and the port B communicates with the port C. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
