Reciprocating compressor

Abstract

A reciprocating compressor is disclosed which includes a housing which includes an intake chamber, a discharge chamber, a cylinder, and a crank chamber, the crank chamber having a lower portion formed as an oil storage chamber configured to store lubricant; a piston which is reciprocatively located in the cylinder; a crank shaft which is rotatably arranged in the crank chamber and is coupled to the piston via a connecting rod; a pressure equalization path through which the intake chamber and the crank chamber communicates, the pressure equalization path having an opening end open to the crank chamber; and a partition member which is located between the crank shaft and the opening end of the pressure equalization path. The partition member extends below the crank shaft from one side to the other side of the crank shaft so as to cover at least the lower side of the crank shaft.

1 . A reciprocating compressor comprising:
 a housing which includes an intake chamber, a discharge chamber, a cylinder, and a crank chamber, the crank chamber having a lower portion formed as an oil storage chamber configured to store lubricant;   a piston which is reciprocatively located in the cylinder;   a crank shaft which is rotatably arranged in the crank chamber and is coupled to the piston via a connecting rod;   a pressure equalization path through which the intake chamber and the crank chamber communicates, the pressure equalization path having an opening end open to the crank chamber; and   a partition member which is located between the crank shaft and the opening end of the pressure equalization path, wherein   the partition member extends below the crank shaft from one side of the crank shaft to the other side of the crank shaft so as to cover at least the lower side of the crank shaft.   
     
     
         2 . The reciprocating compressor according to  claim 1 , wherein
 the partition member includes a plurality of partition plates, and   the plurality of partition plates are arranged along an axial direction of the crank shaft.   
     
     
         3 . The reciprocating compressor according to  claim 2 , wherein the partition plates each include: a lower portion which has a quarter cylinder shape and is curved along a lower side of the crank shaft; and an upper portion which continues to the lower portion and is positioned on a side of the crank shaft. 
     
     
         4 . The reciprocating compressor according to  claim 3 , wherein end portions of the plurality of partition plates which are adjacent to each other in the axial direction of the crank shaft overlap one another in a thickness direction of the partition plates with a gap in between. 
     
     
         5 . The reciprocating compressor according to  claim 3  further comprising a collecting member which is located between the gap between the partition plates and collects the lubricant which passes through the gap. 
     
     
         6 . The reciprocating compressor according to  claim 1  further comprising an oil separator located between the partition member and the opening end of the pressure equalization path, wherein
 the oil separator includes: 
 a labyrinth portion which is formed on a side of the partition member and defines a curved flow path; and 
 a hollow portion which is formed on a side of the opening end and defines a flow path having a larger cross-sectional area than the flow path defined by the labyrinth portion.