Housing upper part of a labyrinth piston compressor and method for cooling same, and labyrinth piston compressor

Abstract

A housing upper part for a labyrinth piston compressor having a cylinder barrel running in the direction of a longitudinal axis, with a cylinder interior and a cylinder barrel exterior. The cylinder barrel has at least one-cylinder inlet opening or cylinder outlet opening which open into the cylinder interior. Wherein a gas distribution housing at least partially encloses the cylinder barrel in the circumferential direction about the longitudinal axis (L) forming between the gas distribution housing and at least one-part section of the cylinder barrel exterior, a gas distribution interior. Wherein the part section is axisymmetric about the longitudinal axis, the gas distribution interior is fluidically connected to the cylinder interior either via the cylinder inlet opening or the cylinder outlet opening, and the gas distribution housing has either a gas inlet or a gas outlet which is fluidically connected to the gas distribution interior.

1 . A housing upper part of a labyrinth piston compressor comprising a cylinder barrel running in the direction of a longitudinal axis (L) with a cylinder interior and a cylinder barrel exterior, wherein the cylinder barrel comprises at least one cylinder inlet opening or at least one cylinder outlet opening, which open into the cylinder interior, characterized in that
 a gas distribution housing at least partly encloses the cylinder barrel in the circumferential direction to the longitudinal axis (L) so that a gas distribution interior is formed between the gas distribution housing and at least one part section of the cylinder barrel exterior of the cylinder barrel, wherein the part section is configured axially symmetrical in regard to the longitudinal axis (L),   wherein the gas distribution interior is fluidically connected either via the cylinder inlet opening or the cylinder outlet opening to the cylinder interior, and wherein the gas distribution housing comprises either a gas inlet or a gas outlet which is fluidically connected to the gas distribution interior.   
     
     
         2 . The housing upper part as claimed in  claim 1 , wherein the cylinder interior has a cylinder interior length (L 2 ), and the gas distribution interior extends at least along the cylinder interior length (L 2 ) so that the part section of the cylinder barrel exterior forms a boundary of the gas distribution interior at least along the entire length of the cylinder interior length (L 2 ). 
     
     
         3 . The housing upper part as claimed in  claim 1 , wherein the gas distribution housing encloses the cylinder barrel exterior in the circumferential direction of the longitudinal axis (L) by an angle (α) of 360°, so that the gas distribution interior or the part section extends in the circumferential direction for 360°. 
     
     
         4 . The housing upper part according to  claim 1 , wherein the cylinder barrel exterior comprises in the circumferential direction of the longitudinal axis (L) at least two part sections spaced apart in the circumferential direction, which form a boundary of the gas distribution interior along the cylinder barrel exterior, wherein the part sections extend in the circumferential direction across an angle of at least 30°. 
     
     
         5 . The housing upper part according to  claim 1 , wherein the cylinder inlet opening and the cylinder outlet opening are spaced apart in the longitudinal direction (L). 
     
     
         6 . The housing upper part according  claim 1 , wherein a plurality of cylinder inlet openings or cylinder outlet openings are arranged at the same height in regard to the longitudinal axis (L), and mutually spaced apart in the circumferential direction in regard to the longitudinal axis (L). 
     
     
         7 . The housing upper part according to  claim 6 , wherein two cylinder inlet openings or two cylinder outlet openings are arranged each time opposite each other in regard to the longitudinal axis (L). 
     
     
         8 . The housing upper part according to  claim 6 , wherein the cylinder outlet opening or the cylinder inlet opening is arranged at an end face of the cylinder interior running in the direction of the longitudinal axis (L). 
     
     
         9 . The housing upper part according  claim 6 , wherein it is made from aluminum or an aluminum alloy. 
     
     
         10 . A labyrinth piston compressor comprising a housing upper part according to  claim 1  and also comprising a piston as well as a piston rod, wherein the piston divides the cylinder interior into a first compression chamber and a second compression chamber, wherein a first cylinder inlet opening opens into the first compression chamber, wherein a second cylinder inlet opening opens into the second compression chamber, wherein the first cylinder outlet opening is arranged at the end face of the cylinder interior facing away from the piston rod, and wherein a second cylinder outlet opening is arranged at the end face of the cylinder interior facing toward the piston rod. 
     
     
         11 . The labyrinth piston compressor according to  claim 10 , wherein a connection channel connects the first and the second cylinder outlet opening fluidically to each other, and the connection channel is fluidically connected to a gas outlet. 
     
     
         12 . The labyrinth piston compressor according to  claim 10 , wherein the gas distribution interior furthermore encloses at least a part section of the cylinder outlet opening on the outside in the direction of the longitudinal axis (L). 
     
     
         13 . A method for cooling a housing upper part of a labyrinth piston compressor comprising a cylinder barrel running in the direction of a longitudinal axis (L) with a cylinder interior and a cylinder barrel exterior, wherein an inlet fluid being compressed is drawn in through a cylinder inlet opening arranged on the cylinder barrel from a gas distribution interior into the cylinder interior, or wherein a compressed outlet fluid is discharged via a cylinder outlet opening arranged on the cylinder barrel from the cylinder interior into the gas distribution interior, and wherein part sections of the cylinder barrel exterior arranged opposite each other and axially symmetrical in regard to the longitudinal axis (L) are swept by the same inlet fluid or outlet fluid. 
     
     
         14 . The method according to  claim 13 , wherein the cylinder barrel exterior is swept by the inlet fluid being compressed or by compressed outlet fluid by an angle (α) of 360 degrees in the circumferential direction of the longitudinal axis (L). 
     
     
         15 . The method according to  claim 13 , wherein the cylinder barrel exterior comprises in the circumferential direction of the longitudinal axis (L) at least two part sections spaced apart in the circumferential direction, extending in the circumferential direction for an angle of at least 30° each. 
     
     
         16 . The method according to  claim 13 , wherein the outlet fluid is ejected through a cylinder outlet opening arranged at the end face of the cylinder interior, wherein the cylinder inlet opening and the cylinder outlet opening are spaced apart in the direction of the longitudinal axis (L) so as to produce a temperature gradient on the cylinder barrel exterior in the direction of the longitudinal axis (L).