F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
F16J 15/54 (2006.01) F04D 7/04 (2006.01) F04D 29/10 (2006.01) F16J 15/18 (2006.01) F16J 15/34 (2006.01)
Patent
CA 2353708
An arrangement of members for a throat bushing for rotary fluid equipment includes a first member that is useful for seal cavities that contain conventional packing, and a second bushing member that will be used in conjunction with the first bushing member if the seal cavity utilizes a mechanical seal at the remote end of the cavity. Both bushing members have a tight sliding fit in the seal cavity and each is provided with spiral grooves in a central bore thereof for the removal of contaminants from the seal cavity. The first bushing member can also be provided with appropriate ports for use with a flushing fluid. The distal end face of the first bushing member is contoured to receive a mating proximal end face of the second bushing member or to also receive the abutting face of a packing ring or a lantern ring. The arrangement of the invention allows an operator to switch between the use of a mechanical seal or conventional packing without having to discard his primary seal cavity protector, as would be required in absence of the intention.
Dunford Joseph R.
Hughes Paul
Enviroseal Engineering Products Ltd.
Macrae & Co.
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