Lenticular sealing ring with alternating graphite and metal lamellae
AssigneeKlinger AG
InventorHerwig Pflug
Life of this patent
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Abstract
A lenticular sealing ring comprises alternately arranged lamellae (1) made of expanded graphite and metal lamellae (2). The density of the graphite lamellae (1) increases from the inside toward the outside of the sealing ring. The layering is configured so that on both sides of the lenticular surfaces at least half of the curved surface is covered by a continuous graphite lamella (1') and a plurality of encircling metal and graphite lamellae (1, 2) terminated in the outer edge region.
Claims15
A sealing ring having a lenticular shape defining an inner central axial opening and a pair of axially opposed curved surfaces extending outwardly from said opening and comprising a plurality of first lamellae made of expanded graphite and a plurality of second lamellae made of metal, said first and second lamellae being arranged in alternating relationship, said first lamellae having a density which increases from inner to outer portions thereof, and a graphite lamella cover defining at least half of each curved surface, wherein a plurality of metal and graphite lamellae terminate in an outer edge region which encircles the lamella cover.
Dependencies are inferred from the claim text.