초록 ▼

A seal assembly for sealing a volatile liquid from escaping past a rotating shaft mounted within a housing, includes a rotating sealing ring having a seal facing keyed to the shaft and a stationary sealing ring having a seal facing mounted to the housing. The seal facing of the stationary sealing ri

A seal assembly for sealing a volatile liquid from escaping past a rotating shaft mounted within a housing, includes a rotating sealing ring having a seal facing keyed to the shaft and a stationary sealing ring having a seal facing mounted to the housing. The seal facing of the stationary sealing ring is in contact with the sealing facing of the sealing ring keyed to the shaft when the shaft is non-rotating. When the sealing ring is rotated by the shaft the seal faces are disengaged from one another. One of the seal facings of either the rotating or stationary sealing ring includes a plurality of notches positioned on the outer radial edge of the sealing surface at an angle of approximately 45.degree. with respect to the perpendicular peripheral surface of the sealing ring.

대표청구항 ▼

[ I claim:] [1.] A primary seal assembly for sealing a volatile liquid from escaping past a rotating shaft mounted within a housing, including in combination:a rotating sealing ring keyed to said shaft and having a radially extending seal facing;a stationary sealing ring mounted to said housing and

[ I claim:] [1.] A primary seal assembly for sealing a volatile liquid from escaping past a rotating shaft mounted within a housing, including in combination:a rotating sealing ring keyed to said shaft and having a radially extending seal facing;a stationary sealing ring mounted to said housing and having a radially extending seal facing, with said seal facing of said rotating sealing ring being in contact with said seal facing of said stationary sealing ring when the shaft is non-rotating and with said seal facing of said rotating sealing ring being disengaged from seal facing of said stationary sealing ring when said shaft is rotated;wherein one of said seal facings of either of said rotating or said stationary sealing ring is comprised of a plurality of sloped notches perdeterminedly spaced about and positioned on the radially extending portion of said seal facing of said respective sealing ring at an angle of approximately 45 degrees with respect to the perpendicular tangent of the peripheral surface of said respective sealing ring; andwherein the space between said sloped notches is a land space which provides a lubricated pressure distribution area for the volatile liquid to prevent a dry running condition.