F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
277/20.5
F16J 15/54 (2006.01) F16J 15/00 (2006.01) F16J 15/16 (2006.01) F16J 15/34 (2006.01)
Patent
CA 1131269
ABSTRACT OF THE DISCLOSURE A multiple stage mechanical end face seal assembly which has been developed to improve seal reliability and performance during both steady-state and transient operation. The seal assembly features a rotating seal ring mounting system which utilizes a rigid support ring loaded thru narrow annular pro- jections in combination with centering non-sealing O-rings which effectively isolate the rotating seal ring from temper- ature and pressure transients while securely positioning the ring to adjacent parts, and a stationary seal ring mounting config- uration which allows the stationary seal ring freedom of motion to follow shaft axial movement up to 3/4 of an inch and shaft tilt about the pump axis without any change in the hydraulic or pressure loading on the stationary seal ring or its carrier. An internal filter arrangement prevents plugging of the pressure staging coils in a multi-stage seal assembly.
344608
Martinson Arthur R.
Rogers Victor D.
Atkinson (guy F.) Company
Macrae & Co.
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