Means providing coolant between elements of radial face seals
AssigneeAssociated Engineering Limited
InventorPeter A. J. Scott
Life of this patent
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Abstract
For cooling the working face of mechanical working elements, such as bearings, rotary seals and friction devices, the cooling fluid flows through a passage which is located behind the working face and contains a porous thermally-conductive mass having interconnecting pores. The conductive material of the porous mass is in intimate thermal contact with the wall behind the working face and acts as a heat exchanger having an extended heat transfer surface. The porous mass preferably comprises a sintered highly-conductive material.
Claims7
A positive clearance radial face seal comprising two sealing members mounted respectively on relatively rotatable shaft and housing members and each having opposed portions defining annular sealing faces having a radial clearance therebetween forming a communicating path between regions of higher and lower pressures, wherein at least one of the sealing members has a cavity behind its sealing face and defined, at least in part, by the portion of the material of the sealing member behind said sealing face, a porous thermally-conductive mass having interconnecting pores located in said cavity and in intimate thermal contact with the material of said portion, and said cavity having inlet means and outlet means for flowing a cooling fluid through the interconnecting pores of the porous mass in the cavity.
Dependencies are inferred from the claim text.