Sliding surface packing
AssigneeWoma-Apparatebau Wolfgang Maasberg & Co. GmbH
InventorsAdalbert Huperz, Wolfgang Maasberg
Life of this patent
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Abstract
A sliding surface packing for use in pumps and particularly high-pressure pumps between spaced apart pair of prop rings and a pump plunger and a pump cylinder wall comprises a plurality of packing rings arranged between the prop rings. At least one of the packing rings comprises a rigid high-pressure ring and at least one packing ring comprises a flexible leakage ring and at least one packing ring comprises a high-pressure ring. A plurality of self-lubricating packing rings form guide rings embedding the leakage ring between adjacent ones of said self-lubricating guides forming a pack of laminations.
Claims6
A sliding surface packing for use in pumps, particularly high-pressure pumps between a spaced pair of prop rings and a pump plunger and a pump cylinder wall, comprising a plurality of packing rings arranged between prop rings, at least one of said packing rings comprising a high-pressure ring and at least one of said packing rings comprising a flexible leakage ring, said packing ring also including a plurality of self lubricating packing rings forming guide rings embedding said leakage ring between adjacent ones of said guide rings forming a pack of laminations therewith.
A sliding surface packing for use in pumps comprising a pump cylinder, a plunger slidable in said cylinder, first and second axially spaced apart prop rings disposed in said cylinder between said plunger and said interior said cylinder, a plurality of packing rings disposed between said prop rings at least one comprising a rigid high-pressure ring, at least one other comprising a flexible leakage ring, and guide ring means embedding said packing rings forming a laminate structure thereof between said prop rings.
Dependencies are inferred from the claim text.