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From: cirejay (no email)
Date: Thu Jan 20 2005 - 16:25:34 EST
Joe, the only thing that I don't like about it is the air cooled
engine, down below. Some of the DC units currently available are
pretty cheap, and water cooled. You're talking a heck of alot of air
to keep it cool and a heck of a lot of heat to get rid of. One more
point, what is your idea of "nice n quiet.. (relatively ! ļ)"?
eric
--- In , "Joe - G4XRZ"
<captainslarty at n dot dot dot > wrote:
>
> Hi Guys
> I have been pondering the benefits and practicality of a small DC
> generator set that doesn¡¦t cost a fortune and is home built..
>
> Specs as follows..
> Small diesel driven unit powering 100 amp alternator (Motor
vehicle
> unit with regulator removed to gain access to field excitation
from
> an external controller.
> Other uses ¡V as an emergency pump unit..
>
> The alternator would need apx 2HP to drive it at max output, a 3-4
> HP unit would do.
> I came across various diesel portable pumps using the same single
> cylinder air cooled diesel as yanmar sell, but at dirt cheap
prices..
> With an adapter plate the alternator could be driven from the
output
> shaft directly and the original belt drive of the alternator used
to
> drive the original pump now offset or a pucka clutched pump
(Engine
> driven bilge pump converted).. To power the pump you depower the
> alternator field and engage the clutch on the pump..
> The engine is electric start with a pull cord backup. Mounted
> internally in the boat / engine room.. a small impellor pump could
> inject water into the exhaust pipe linking it to the outside world
¡V
> at the connection between the existing manifold and the new pipe..
> nice n quiet.. (relatively ! ļ)
>
> It would also be possible to link the belt drive to a small
> watermaker at a later date.. it really just means a 3/8ths
aluminium
> plate to attach any goodies with a shaft adapter on the alternator
> pulley.
>
> Seems like a good plan to me ?.. what do you think ?..
> Would involve a bit of tinkering and assembly.. but would provide
a
> great power and backup system.
> Even with new prices on marine alternator and marine pump and
> complete engine assembly .. it would come to less that 2000
dollars
> US.., cheap to run and easy to service..
>
> Joe.
> Joe Hanley - UK
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