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1. (WO2003062679) SHAFT SEALING SYSTEM FOR A ROTARY MECHANICAL DEVICE

Pub. No.:    WO/2003/062679    International Application No.:    PCT/US2003/001670
Publication Date: Jul 31, 2003 International Filing Date: Jan 21, 2003
IPC: F16J 15/18
Applicants: WILKINSON, Mark, R.
Inventors: WILKINSON, Mark, R.
Title: SHAFT SEALING SYSTEM FOR A ROTARY MECHANICAL DEVICE
Abstract:
A sealing system (2) to be inserted into the seal cavity of a rotary mechanical device to provide a seal and a bearing surface to eliminate whip in a rotating shaft (14). The sealing system (2) includes a split bushing element (31) to allow easy installation over the shaft (14). The bushing (31) is substantially cylindrical with an inner bore closely approximating the outer diameter of the shaft and includes a groove (36) at the motor end on the outer surface and a corresponding groove (37) on the inner surface to provide a lantern ring. Seal water openings (38) are provided between the outer groove (36) and inner groove (37) of the bushing (31). Generally, two or three packing rings (32) are added on the motor side to complete the shaft sealing system (2) for installation in the seal cavity.