Non-contacting gap-type seal having a ring with a patterned...

Details Non-contacting gap-type seal having a ring with a patterned... Non-contacting gap-type seal having a ring with a patterned...

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 15/16 (2006.01) F16J 15/34 (2006.01)

Patent

CA 2046823

ABSTRACT OF THE DISCLOSURE A seal face of a ring used in a non-contacting, gap- type seal having an annular groove area with microdams, each having a preferable width of about .025 inches, between a plurality of groove surface areas. The microdams provide a boundary to the groove surface areas thereby the recess of each groove surface area bounded by the microdams acts as a unitary pressure zone and the pressure in the separate zones decreases in a series of steps as measured from one circumference of the ring to the other circumference.

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