Piston ring arrangement
AssigneeStasskol GmbH
InventorGeorg Flade
Life of this patent
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Abstract
Piston ring arrangement (40) with a piston ring (50) encircling a main axis (X), the piston ring (50) having a sealing surface (58) directed radially outward and a contact surface (55) directed radially outward, the sealing surface (58) being radially outside of the contact surface (55). To improve the service life of piston rings for reciprocating compressors, the piston ring arrangement (40) has a retaining ring (70) encircling the main axis (X) with a retaining surface (72) directed radially inward, the piston ring (50) and the retaining ring (70) being situated such that the retaining surface (72) and the contact surface (55) are adjacent in the radial direction.
Claims21
A piston ring arrangement, comprising:
- a piston ring encircling a main axis (X), the piston ring having a sealing surface directed radially outward and a contact surface directed radially outward, the sealing surface being radially outside of the contact surface,
- a retaining ring encircling the main axis (X) with a retaining surface directed radially inward,
- the piston ring and the retaining ring being arranged such that the retaining surface and the contact surface are adjacent in the radial direction, and
- wherein the retaining ring is a closed, unbroken ring.
Dependencies are inferred from the claim text.