Mechanical face seals

Details Mechanical face seals Mechanical face seals

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 15/34 (2006.01) F16J 15/40 (2006.01)

Patent

CA 2047973

A mechanical face seal includes a first seal face member mounted in fixed axial and rotational relationship and sealed with respect to a housing and a second seal face member mounted in fixed rotational relationship and sealed with respect to a shaft, the second seal face member is movable axially of the shaft towards the first seal face member so that opposed sealing faces of the first and second seal face members are urged into sealing engagement, a passage is provided through one of the seal face members, the passage opening to the sealing face of the seal face member at a point intermediate of the radial extremities of the face engaged by the sealing face of the other seal face member, the passage being connected to an external source of fluid under pressure, sensors being provided for monitoring operating conditions at the interface between the first and second seal face members and control means for adjusting the pressure of fluid delivered via the passage to the sealing faces, to optimise performance of the seal.

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