Compressor

Abstract

A compressor includes a cylinder including a cylinder chamber, a cylinder cover including a connection hole configured to allow a refrigerant to be discharged from the cylinder chamber, and a valve assembly configured to open and close the connection hole. The valve assembly includes a first valve configured to be deformable, a second valve having a portion configured to be contactable with the first valve based on a pressure inside the cylinder chamber and configured to be deformable, and a spacer, configured to be arrangeable between the first valve and the second valve, to space the second valve apart from the first valve to allow the second valve to deform after the first valve deforms based on the pressure inside the cylinder chamber. A thickness of the spacer is 2.4 to 3.2 times a thickness of the first valve.

1 . A compressor comprising:
 a cylinder including a cylinder chamber;   a cylinder cover including a connection hole configured to allow a refrigerant to be discharged from the cylinder chamber; and   a valve assembly configured to open and close the connection hole,   wherein the valve assembly includes:
 a first valve configured to be deformable; 
 a second valve having a portion configured to be contactable with the first valve based on a pressure inside the cylinder chamber and configured to be deformable; and 
 a spacer, configured to be arrangeable between the first valve and the second valve, to space the second valve apart from the first valve to allow the second valve to deform after the first valve deforms based on the pressure inside the cylinder chamber,
 wherein a thickness of the spacer is 2.4 to 3.2 times a thickness of the first valve. 
 
   
     
     
         2 . The compressor of  claim 1 , wherein the first valve is deformable based on the pressure inside the cylinder chamber. 
     
     
         3 . The compressor of  claim 2 , wherein the second valve is deformable under a pressure greater than the pressure inside the cylinder chamber. 
     
     
         4 . The compressor of  claim 1 , wherein the valve assembly is configured such that:
 based on the pressure inside the cylinder chamber being a first pressure value, the first valve is deformed to open the connection hole, and   based on the pressure inside the cylinder chamber being a second pressure value that is greater than the first pressure value, the second valve is deformed together with the first valve to increase a degree of opening of the connection hole.   
     
     
         5 . The compressor of  claim 4 , wherein the second valve is configured to be restored based on the pressure inside the cylinder chamber being smaller than the second pressure value, and
 the first valve is configured to be restored based on the pressure inside the cylinder chamber being smaller than the first pressure value.   
     
     
         6 . The compressor of  claim 1 , wherein a thickness of the second valve is greater than the thickness of the first valve and less than the thickness of the spacer. 
     
     
         7 . The compressor of  claim 1 , wherein the first valve includes a same material as the second valve. 
     
     
         8 . The compressor of  claim 1 , wherein
 the first valve includes:
 a first valve fixing portion fixed to the cylinder cover; and 
 a first valve cover portion configured to open and close the connection hole, and 
   the second valve includes:
 a second valve fixing portion fixed to the cylinder cover; and 
   a second valve cover portion configured to be spaced apart from the first valve cover portion based on the pressure inside the cylinder chamber being lower than a predetermined pressure.   
     
     
         9 . The compressor of  claim 8 , wherein the spacer is arrangeable between the first valve fixing portion and the second valve fixing portion. 
     
     
         10 . The compressor of  claim 8 , wherein the second valve cover portion is configured to be contactable with the first valve cover portion based on the pressure inside the cylinder chamber being higher than the predetermined pressure. 
     
     
         11 . The compressor of  claim 1 , wherein the valve assembly includes a stopper configured to limit a degree of deformation of the second valve. 
     
     
         12 . The compressor of  claim 1 , wherein the valve assembly further includes a rotation restricting portion configured to restrict rotation of the second valve. 
     
     
         13 . The compressor of  claim 12 , wherein the rotation restricting portion is provided on the second valve, and
 the cylinder cover further includes a cover receiving portion configured to accommodate the rotation restricting portion.   
     
     
         14 . The compressor of  claim 12 , wherein the rotation restricting portion is provided on the spacer. 
     
     
         15 . The compressor of  claim 14 , wherein the rotation restricting portion further includes a portion configured to restrict rotation of the first valve.