Back to results
US 9,851,010 B2Granted
Seal
AssigneeCarl Freudenberg KG
InventorsLuc Humblot, Dominique Lutaud
Life of this patent
Estimating the term…
Abstract
A seal with, on the one hand, a support body in the form of a carrier ring with an axial leg and, on the other hand, a sealing washer which is placed or arranged on the carrier ring and which surrounds the axial leg on the outer periphery, said carrier ring being made of a metallic material, wherein the carrier ring is made of a sheet of the HYS type.
Claims23
A seal for sealing a space between a casing and a machine element, the seal comprising:
- a carrier ring comprising an axial leg and a radial leg;
- and
- a sealing washer comprising a polytetrafluoroethylene (PTFE) composition,
- wherein the sealing washer is arranged on the carrier ring and is bonded to the carrier ring with an adhesive product,
- wherein the sealing washer protrudes beyond a free end of the axial leg and thus forms a projecting part, the projecting part being configured such that a force acting in an axial direction cannot detach the sealing washer from the axial leg by shearing,
- wherein the projecting part is bent radially inwardly so that its outer surface forms circumferentially a frustoconical shape, not contacting an end edge of the axial leg,
- wherein the polytetrafluoroethylene (PTFE) composition of the sealing washer surrounds and extends beyond the axial leg of the carrier ring on a radially outer periphery of the axial leg of the carrier ring, so as to contact the casing and prevent the carrier ring from contacting either of the casing and the machine element, and
- wherein the carrier ring comprises a high yield strength (HYS) sheet, comprising a metallic material, with a yield strength Re of at least 210 N/mm2.
5 more elements
Dependencies are inferred from the claim text.