Compressor unit

Abstract

A compressor unit having a cylinder and a piston, wherein the cylinder and the piston delimit a compressor chamber. The compressor unit also includes a capsule that surrounds at least the cylinder and the piston and a linear drive to drive a relative movement of the cylinder, the piston and the capsule. The compressor chamber has an outlet opening that opens into an interior of the capsule.

1 - 16 . (canceled) 
     
     
         17 . A compressor unit, comprising:
 a cylinder;   a piston, the cylinder and the piston delimiting a compressor chamber;   a capsule surrounding at least the cylinder and the piston; and   a linear drive to drive a relative movement of the cylinder, the piston and the capsule;   wherein the compressor chamber has an outlet opening that opens into an interior of the capsule.   
     
     
         18 . The compressor unit of  claim 17 , wherein the piston is gas pressure-mounted in the cylinder. 
     
     
         19 . The compressor unit of  claim 18 , wherein the piston has a lateral surface, and wherein the cylinder has a casing with bores that connect a gap between the casing and the lateral surface with the interior of the capsule. 
     
     
         20 . The compressor unit of  claim 19 , wherein channels to supply pressurized gas from the compressor chamber into the gap extend between a front face and the lateral surface of the piston. 
     
     
         21 . The compressor unit of  claim 20 , wherein the channels are embodied as bores. 
     
     
         22 . The compressor unit of  claim 20 , wherein the channels are embodied as grooves. 
     
     
         23 . The compressor unit of  claim 17 , wherein the outlet opening is formed in the piston. 
     
     
         24 . The compressor unit of  claim 23 , wherein the outlet opening is formed on a base of the piston. 
     
     
         25 . The compressor unit of  claim 17 , further comprising a valve to seal the outlet opening. 
     
     
         26 . The compressor unit of  claim 25 , wherein the valve is a non-return valve. 
     
     
         27 . The compressor unit of  claim 25 , wherein the valve is a stop valve, and wherein the stop valve opens towards an interior of the piston. 
     
     
         28 . The compressor unit of  claim 26 , wherein at least one section of the non-return valve protrudes beyond a base of the piston. 
     
     
         29 . The compressor unit of  claim 28 , wherein the at least one section of the non-return valve is formed from a shock-absorbing material. 
     
     
         30 . The compressor unit of  claim 29 , wherein the shock-absorbing material is Viton. 
     
     
         31 . The compressor unit of  claim 26 , wherein the non-return valve is a circular truncated cone having a lateral surface, and wherein the circular truncated cone and the lateral surface form a valve seat in a base of the piston. 
     
     
         32 . The compressor unit of  claim 31 , wherein the circular truncated cone has a smaller base surface, and wherein the circular truncated cone and the smaller base surface protrude beyond the base of the piston. 
     
     
         33 . The compressor unit of  claim 17 , further comprising a suction gas line that is guided through the interior of the capsule to the compressor chamber.