TORIC SEAL, NONCIRCULAR SECTION

摘要

A retainer-torus-seal ring combination for a face-type seal has a toric member constructed with a noncircular cross section for producing (1) a rapid increase in face load with initial inward axial movement of the retainer with respect to the ring (during initial assembly) and (2) then a relatively constant face load during an extended amount of axially inward movement of the retainer with respect to the seal ring (as occurs during operation of a face seal).