Refrigerant compressor, piston of a refrigerant compressor and piston arrangement

Abstract

The invention concerns a refrigerant compressor with a cylinder, in which is arranged a piston ( 5 ) that is connected to a crankshaft via a connecting rod ( 14 ), the connecting rod ( 14 ) having a piston eye ( 18 ), through which a bolt ( 17 ) inserted in the piston ( 5 ) is guided. With such a refrigerant compressor, it is endeavoured to achieve a good efficiency. For this purpose, the bolt ( 17 ) is inserted in a blind bore ( 19 ).

1 . A refrigerant compressor with a cylinder, in which is arranged a piston that is connected to a crankshaft via a connecting rod, the connecting rod having a piston eye, through which a bolt inserted in the piston is guided, wherein the bolt is inserted in a blind bore. 
     
     
         2 . The refrigerant compressor according to  claim 1 , wherein the bolt is arranged in the piston with a slide fit. 
     
     
         3 . The refrigerant compressor according to  claim 1 , wherein the bolt is held in the piston by means of a perch bolt. 
     
     
         4 . The refrigerant compressor according to  claim 3 , wherein the perch bolt extends in parallel to the movement direction of the piston. 
     
     
         5 . The refrigerant compressor according to  claim 4 , wherein the perch bolt is arranged in a channel starting from the side of the piston facing the crankshaft. 
     
     
         6 . The refrigerant compressor according to  claim 5 , wherein the channel ends with the front side of the piston facing the crankshaft. 
     
     
         7 . The refrigerant compressor according to  claim 3 , wherein the perch bolt ends inside the bolt. 
     
     
         8 . The refrigerant compressor according to  claim 1 , wherein the bolt comprises a hollow. 
     
     
         9 . The refrigerant compressor according to  claim 8 , wherein the hollow starts from an axial end of the bolt and penetrates the bolt on a part of its axial length. 
     
     
         10 . The refrigerant compressor according to  claim 8 , wherein the hollow is connected to an oil channel in the connecting rod via a radial channel in the area of the connecting rod. 
     
     
         11 . A piston of a refrigerant compressor according to  claim 1 , in which a drilled accommodation of a bolt is made as a blind bore. 
     
     
         12 . A piston arrangement with a connecting rod, a bolt and a piston according to  claim 11 .