Compressor

Abstract

A compressor having a cylinder bore where fluid is compressed, a valve plate for partitioning the cylinder bore and a suction chamber, a suction hole provided in the valve plate and communicating the cylinder bore and the suction chamber, and a suction reed valve for opening and closing the suction hole and caused, when the valve closes the suction hole, to be in contact with a suction reed valve seal section of the valve plate. The suction reed valve seal section is located outside a suction hole-provided region. A suction reed valve support section, with which the suction reed valve can be in contact when the suction reed valve is closed, is provided also in the suction hole-provided region of the valve plate, and a valve function is provided between the outer periphery portion of the suction reed valve contact section of the suction reed valve support section and the suction reed valve. A through hole is provided in a part inside the portion where the valve function of the reed valve is provided. In the compressor, pressure loss at a suction valve portion in a suction stroke is reduced to improve suction efficiency etc. and vibration of the reed valve is suppressed by the reduction in pressure loss.

1 . A compressor having a cylinder bore where fluid is compressed, a valve plate for partitioning said cylinder bore and a suction chamber, a suction hole provided in said valve plate and communicating said cylinder bore and said suction chamber, and a suction reed valve for opening and closing said suction hole and caused, when being closed, to be in contact with a suction reed valve seal section of said valve plate which is located outside a suction hole-provided region, characterized in that a suction reed valve support section, with which said suction reed valve can be in contact when said suction reed valve is closed, is provided also in said suction hole-provided region of said valve plate, a valve function is provided between an outer periphery portion of a suction reed valve contact section of said suction reed valve support section and said suction reed valve, and a through hole is provided in a part inside a portion where said valve function of said reed valve is provided. 
   
   
       2 . The compressor according to  claim 1 , wherein a contact surface with said reed valve in said outer periphery portion of said suction reed valve contact section of said suction reed valve support section where said valve function is provided is located to be flush relative to said suction reed valve seal section of said suction reed valve, which is located outside said suction reed valve support section, or closer to said cylinder bore than said suction reed valve seal section, or closer to said suction chamber than said suction reed valve seal section. 
   
   
       3 . The compressor according to  claim 1 , wherein said suction reed valve support section is formed integrally with said valve plate. 
   
   
       4 . The compressor according to  claim 3 , wherein a position where said suction reed valve support section is in contact with said suction reed valve is adjusted by press forming after polishing of said valve plate.