Patent ID: 9726169
Date: 2017-08-08
CPC Classifications: F04B,F16J

Claim:
1. A piston compressor comprising a sealing arrangement arranged in a compressor housing for sealing a reciprocating piston rod of the piston compresso, the sealing arrangement having a first and a second sealing element which are arranged axially spaced apart in a recess of the sealing arrangement, wherein a feed line for a sealing medium is provided, which feed line is connected to the recess, and the sealing elements are pressurized by the sealing medium, and wherein a hydraulic unit is provided for generating the pressure of the sealing medium, wherein a ventilator and a sealing medium container, which is partially filled with sealing medium, are provided in the hydraulic unit, wherein the ventilator suctions air from the free space of the sealing medium container, and that the free space in the sealing medium container is connected via a line to the compressor housing, and an opening is provided at the compressor housing for connecting the interior of the compressor housing to a purge gas reservoir.