Oil Field Engine News
(Page 3 of 3)
Russell Farmer
January/February 2004
The parts manual also has a section on hot-tube ignition:
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'Hot tube igniters are made from either nickel alloy or
wrought iron, having an inside diameter from
5/16-inch to 3/8-inch,
and a length usually within the limits of 6 to 8 inches. In extreme
cases, however, the limits may run from 3 inches to 10 inches. A
long tube causes an earlier ignition than a short tube, when the
inside diameters are the same, or a larger inside diameter tube
causes an earlier ignition than a smaller inside diameter tube of
the same length, so it may require some experimenting to determine
the length of tube that will give the best results.
'The furnace is an enclosure in which heat is produced for
keeping the tube hot and the performance of the engine depends a
great deal on its condition, as the tube must be kept hot or the
engine will behave badly, backfire, run irregularly and not pull
the load satisfactorily. The inside of the furnace is lined with
asbestos to prevent the heat from escaping through the wall, and
should the lining be wasted to any extent the radiation of heat
through the wall will be so great it will be impossible to keep the
tube hot enough.
'When adjusting the mixer for the furnace it is very common
for the engineer to watch the flame by looking down into the
furnace while the engine is running. This habit is very dangerous
on account of the possibility of the tube bursting and blowing
either part of the tube or other foreign matter into the eyes and
causing permanent injury. A safe way for making such observances
would be by using a small looking glass.'
I hope everyone will find these recommendations from this
Bessemer operator's manual helpful. As always, anyone
interested in a free membership to the Oil Field Engine Society
(OFES) should write or e-mail me at the address below.
Contact the Oil Field Engine Society at: 1231 Banta's
Creek Road, Eaton, OH 45320-9701, online at: www.oilfieldengine.com
or e-mail at: oilengine@voyager.net
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