Sealing arrangement
AssigneeMaschinenfabrik Sulzer-Burckhardt AG
InventorNorbert Feistel
Life of this patent
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Abstract
Sealing arrangement for a piston rod with a circular cross-section, comprising a one-piece sealing ring with a parting joint and compensation clearance as well as a cover ring surrounding the sealing ring in the peripheral direction, with the sealing ring having a section which extends in the peripheral direction of the sealing ring at at one end and forms an overlapping ring joint together with the other end of the sealing ring, and with the sealing ring having a radial wall thickness decreasing towards the parting joint. This arrangement has an excellent sealing action in a direction axial to the arrangement.
Claims13
A sealing arrangement for a piston rod with a circular cross-section, comprising a one-piece sealing ring with a parting joint and compensation clearance as well as a cover ring surrounding or enclosing the sealing ring in the peripheral direction, with the sealing ring having a section which extends in the peripheral direction of the sealing ring at least at one end and forms an overlapping ring joint together with another end of the sealing ring, and with the sealing ring having a radial wall thickness which decreases towards the parting joint;
- wherein the sealing ring has at its radially outer surface a recess extending along the circumference of the sealing ring, the cover ring fitting in the recess and a sealing surface which is a radially inner surface of the sealing ring.
A packing for sealing a piston rod with sealing arrangements that comprise:
- a one-piece sealing ring with a parting joint and compensation clearance as well as a cover ring surrounding or enclosing the sealing ring in the peripheral direction, with the sealing ring having a section which extends in the peripheral direction of the sealing ring at least at one end and forms an overlapping ring joint together with another end of the sealing ring, and with the sealing ring having a radial wall thickness which decreases towards the parting joint wherein the sealing ring has at its radially outer surface a recess extending along the circumference of the sealing ring, the cover ring fitting in the recess.
A piston compressor with a sealing arrangement comprising:
- a packing for sealing a piston rod with sealing arrangements that comprise:
- a one-piece sealing ring with a parting joint and compensation clearance as well as a cover ring surrounding or enclosing the sealing ring in the peripheral direction, with the sealing ring having a section which extends in the peripheral direction of the sealing ring at least at one end and forms an overlapping ring joint together with another end of the sealing ring, and with the sealing ring having a radial wall thickness which decreases towards the parting joint wherein the sealing ring has at its radially outer surface a recess extending along the circumference of the sealing ring, the cover ring fitting in the recess.
Dependencies are inferred from the claim text.