Reciprocating piston compressor

Abstract

A compressor including a cylinder, the cylinder delimiting a compressor chamber having a circular cross-section and the cylinder having a longitudinal axis and including a front wall, the front wall of the cylinder having inlet and outlet openings for passage therethrough of a medium to be compressed; and a reciprocating piston disposed in the compressor chamber, the reciprocating piston being reciprocable within the compressor chamber in a movement that includes a dead center position and having a pair of opposed ends with one end being more proximate to the front wall of the cylinder than the other opposed end and the reciprocating piston having an expulsion projection on its one end, the expulsion projection entering the outlet opening in a dead center position of the reciprocating piston, the longitudinal axis of the cylinder extending through the outlet opening.

1 - 12 . (canceled) 
   
   
       13 . A compressor comprising:
 a cylinder, the cylinder delimiting a compressor chamber having a circular cross-section and the cylinder having a longitudinal axis and including a front wall, the front wall of the cylinder having inlet and outlet openings for passage therethrough of a medium to be compressed; and   a reciprocating piston disposed in the compressor chamber, the reciprocating piston being reciprocable within the compressor chamber in a movement that includes a dead center position and having a pair of opposed ends with one end being more proximate to the front wall of the cylinder than the other opposed end and the reciprocating piston having an expulsion projection on its one end, the expulsion projection entering the outlet opening in a dead center position of the reciprocating piston, the longitudinal axis of the cylinder extending through the outlet opening.   
   
   
       14 . The compressor according to  claim 13  wherein the inlet opening is formed with a noncircular cross-section wherein the dimensions of the non-circular cross-section are greater in the peripheral direction of the cylinder than in the radial direction of the cylinder. 
   
   
       15 . The compressor according to  claim 14  wherein the inlet opening is formed with a cross-section in the form of an arc. 
   
   
       16 . The compressor according to  claim 13  wherein the compressor is formed with a plurality of inlet openings distributed about the outlet opening. 
   
   
       17 . The compressor according to  claim 16  wherein the inlet openings are distributed along an arc. 
   
   
       18 . The compressor according to  claim 15  wherein the arc extends over an angle of less than 180. 
   
   
       19 . The compressor according to  claim 13  and further comprising a first shut-off body wherein the first shut-off body is forced against the inlet opening by a first flat spring disposed in the compressor chamber. 
   
   
       20 . The compressor according to  claim 19  wherein the first flat spring is fastened to a point on the front wall disposed oppositely from the inlet opening. 
   
   
       21 . The compressor according to  claim 20  wherein the first flat spring has an opening through which the longitudinal axis of the cylinder extends. 
   
   
       22 . The compressor according to  claim 15  and further comprising a second shut-off body wherein the second shut-off body is forced against the outlet opening by a second flat spring disposed on the exterior of the front wall. 
   
   
       23 . The compressor according to  claim 19  wherein the first flat spring and the second flat spring are each fastened to the front wall by at least one rivet. 
   
   
       24 . The compressor according to  claim 15  and further comprising a linear motor configured for driving piston movement.