FIELD: machine engineering.
SUBSTANCE: hermetic seal at elevated pressure (38) to the piston rod (24) of the piston compressor (10) includes a housing (46) having a through hole (48) for the piston rod. The housing contains the chamber (52), which is aligned with a through hole (48) and the axial length (54) of which is at least equal to the course of the piston rod (24). It comprises a sealing ring between the first sealing element and second sealing element and the gas passage extending from the housing through a first sealing element in a sealing ring. The passage has an outlet for the gas, formed by at least one radial bore in the sealing ring. The two-chamber assembly for this compressor is described as well as the compressor itself.
EFFECT: enhanced serviceability, and lowered costs.
17 cl, 11 dwg
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