Silencer for refrigeration cycle system

Abstract

A silencer for a refrigeration cycle system is disclosed. The silencer includes a silencing chamber 15 a formed in a housing 16, an inlet pipe 20 connected to the housing 16 to allow the refrigerant to flow into the silencing chamber 15 a, and an outlet pipe 21 connected to the housing 16 to allow the refrigerant to flow out of the silencing chamber 15 a. The direction in which the inlet pipe 20 is connected to the housing 16 and the direction in which the outlet pipe 21 is connected to the housing 16 cross each other. A bend 21 c projected into the silencing chamber 15 a and curved toward the upstream end 20 b of the inlet pipe 20 is formed at the upstream end 21 b portion of the outlet pipe 21. The bend 21 c is formed with an opening 21 d to open the inside part thereof. As a result, the refrigerant that has flowed into the silencing chamber 15 a can be guided smoothly to the outlet pipe 21 while at the same time avoiding a case in which the bend 21 c suppresses the interference of the pressure wave.

1 . A silencer for a refrigeration cycle system, comprising:
 a silencing chamber formed in a housing;   an inlet pipe connected to the housing to allow the refrigerant to flow into the silencing chamber; and   an outlet pipe connected to the housing to allow the refrigerant to flow out of the silencing chamber;   wherein the direction in which the inlet pipe is connected to the housing crosses the direction in which the outlet pipe is connected to the housing;   wherein the upstream end portion of the outlet pipe is formed with a bend projected into the silencing chamber and curved toward the downstream end of the inlet pipe; and   wherein the bend is formed with an opening to open the inside part of the bend.   
   
   
       2 . The silencer for the refrigeration cycle system according to  claim 1 ,
 wherein the opening is formed to extend at least from the upstream end to the central portion of the bend in the direction of the refrigerant flow.   
   
   
       3 . The silencer for the refrigeration cycle system according to  claim 1 ,
 wherein the outlet pipe is formed with an outward protrusion in contact with the outer surface of the housing.   
   
   
       4 . A silencer for the refrigeration cycle system, comprising:
 a silencing chamber formed in a housing;   an inlet pipe connected to the housing to allow the refrigerant to flow into the silencing chamber; and   an outlet pipe connected to the housing to allow the refrigerant to flow out of the silencing chamber;   wherein the direction in which the inlet pipe is connected to the housing crosses the direction in which the outlet pipe is connected to the housing;   wherein the downstream end portion of the inlet pipe is formed with a bend projected into the silencing chamber and curved toward the upstream end of the outlet pipe; and   wherein the bend is formed with an opening to open the inside part of the bend.   
   
   
       5 . The silencer for the refrigeration cycle system according to  claim 4 ,
 wherein the opening is formed to extend at least from the downstream end to the central portion of the bend in the direction of the refrigerant flow.   
   
   
       6 . The silencer for the refrigeration cycle system according to  claim 4 ,
 wherein the inlet pipe is formed with an outward protrusion in contact with the outer surface of the housing.   
   
   
       7 . The silencer for the refrigeration cycle system according to  claim 1 ,
 wherein the opening is formed by cutting a part of the pipe wall of the bend.   
   
   
       8 . The silencer for the refrigeration cycle system according to  claim 1 ,
 wherein the silencing chamber is configured of a single room.