Shaft seal with controlled porosity elements

Details Shaft seal with controlled porosity elements Shaft seal with controlled porosity elements

F - Mech Eng,Light,Heat,Weapons

16

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F16J 15/40 (2006.01) F16C 33/80 (2006.01) F16J 15/32 (2006.01) F16J 15/44 (2006.01) F16J 15/453 (2006.01) F16J 15/54 (2006.01)

Patent

CA 2125906

A labyrinth type seal assembly having one or more controlled porosity elements retained in the labyrinth pathway between relatively rotatable seal elements. Preferably the controlled porosity elements are formed of open celled foam material such as polyurethane. The controlled porosity elements assist in preventing the ingress of contaminating solid or liquid materials, the loss of sealed materials and the flooding or overloading of drain ports.

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