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Prior to this discussion, had been considering replacing several
brine pumps at work with magnetically coupled pumps to eliminate shaft seals
(additional benefit of composite impeller and housing would not react with acid
fluid). Cutting to the quick, some interesting facts concerning the
magnetic coupling: 1.
Able to handle powers up to 100 HP. 2.
Working pressures to 200 psi While this is a pump, it is easy to see how this technology
would easily be extensible to thrusters (and greater depth [200 psi = ~452 ft.]
as the pressure on components would be compressive, not tensile). The
issue would be the design of bi-directional thrust bearings that are water lubricated
and cooled. The shaft and bearings within the pump were manufactured from
sintered SiC and use the pumped fluid for lubrication. For those of you
that would like further information, see http://www.fybroc.com/html/mag.htm R/Jay Respectfully, Jay K. Jeffries Andros Is., Bahamas A skimmer afloat is but a submarine, so poorly built it will not
plunge. |