Hydrodynamic seal with improved exclusion and lubrication

Details Hydrodynamic seal with improved exclusion and lubrication Hydrodynamic seal with improved exclusion and lubrication

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 15/32 (2006.01) F16J 15/24 (2006.01)

Patent

CA 2699185

A hydrodynamic sealing assembly including a first machine component defining a seal groove and a second machine component having a rotatable surface that is rotatable relative to the first machine component. A hydrodynamic seal including a seal body of generally ring-shaped configuration having a circumference and the seal body includes a sealing lip having a sealing surface contacting the relatively rotatable surface to establish a sealing interface between the sealing lip and the relatively rotatable surface. The sealing lip includes an exclusion edge of abrupt substantially circular form that is substantially aligned with a direction of relative rotation between the sealing lip and the relatively rotatable surface in a compressed, installed condition of the seal and wherein the exclusion edge is non-circular and slightly wavy in an uncompressed, uninstalled condition of the hydrodynamic seal.

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