From: Spike (spike66@attbi.com)
Date: Sat Jun 14 2003 - 19:25:28 MDT
Rafal wrote:
>Actually, it would be trivially easy to add flower
>fragrance to car exhaust. This is a cool idea, now
>that you got me to think about it!
>Spike, do you feel like patenting a car-exhaust deodorizer... Rafal
I would be surprised if something like this hasn't
already been patented. It would be easy to do, since
the fragrances are already available on the market.
Since the fast stream of hot exhaust is already zipping
past in the manifold, creating a low pressure reservoir,
all one would need is a valve in a line that goes into
the exhaust pipe. Open the valve and the liquid goes
in, is atomized by the hot exhuast gas and there you
have it.
A variation on this theme was introduced by Kawasaki
on their motorcycles in 1980. The air pollution rules
at that time were on the verge of requiring motorcycles
to add expensive and heavy catalytic converters to
reduce the concentration of nitrous oxides in the
exhaust. Kawasaki drilled holes in the exhaust pipes
and inserted what amounted to a venturi in the pipe,
so that outside air would be sucked into the pipe. This
of course did not change the *amount* of nitrous oxides
produced, but by mixing outside air with the exhaust,
it reduced the *concentration* of the pollutants coming
out of the exhaust pipes, allowing Kawasaki to pass the
tests.
Then of course the EPA recognized the absurdity of the
rules as written and changed them, obviating the need
for Kawasaki to drill holes in the exhaust pipes. But
the same idea could still be used to suck perfume into
the pipes if you wanted. {8-] spike
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