ROTARY MACHINE ASPIRATING SEAL ASSEMBLY AND METHOD OF ASSEMBLING THE SAME

摘要

An aspirating face seal for use with a rotary machine includes a rotating seal ring including a radially outer surface that includes an oblique portion. A stationary seal ring is coupled proximate the rotating seal ring such that a first gap is defined therebetween. The stationary seal ring is movable along a centerline axis of the rotary machine between an open position and a sealed position, and includes an extension member that extends across the first gap. An auxiliary seal includes at least one seal tooth that includes a seal tooth tip. The at least one seal tooth extends radially inward from the extension member such that a second gap is defined between the seal tooth tip and the oblique portion.

主权项

1. An aspirating face seal for use with a rotary machine that includes a centerline axis, said aspirating face seal comprising:
a rotating seal ring comprising a radially outer surface that includes an oblique portion; a stationary seal ring coupled proximate said rotating seal ring such that a first gap is defined therebetween, wherein said stationary seal ring is movable along said centerline axis between an open position and a sealed position, said stationary seal ring including an extension member extending across said first gap; and an auxiliary seal comprising at least one seal tooth that includes a seal tooth tip, said at least one seal tooth extending radially inward from said extension member such that a second gap is defined between said seal tooth tip and said oblique portion.