Importance

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Abstract

A controlled leakage, hydrostatic, mechanical seal that eliminates sources of contact friction; advantageously locating contact friction forces to be in alignment with the seal face centroid; optimizes the seal face design to achieve maximum hydrostatic film stiffness and minimum sensitivity to radial taper; eliminating unnecessary O-rings and other sources of significant force variation; utilizes a design-for-manufacture approach to design hardware that can be consistently manufactured to precise tolerances; optimizes the double delta channel seal to achieve adequate compression, minimal frictional drag force, and maximum wear resistance; eliminates sources of circumferential waviness such as bolt preload and other non-axisymmetric features; and, thermally isolates components of different materials to mitigate the deformation due to differential thermal expansion.

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First Claim