Improvements in Burners for Burning Hydrocarbons.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Burners for Burning Hydrocarbons.
I, LEWIS COLLINGS BOYLE, of Sierra Leone, West Africa, at present residing
at Bank House, Cross Street, Barnstaple, in the County of Devon, Civil
Engineer, do hereby declare the nature of this invention to be as follows:-
-
This invention relates to that class of hydrocarbon burner which is used for
injecting liquid fuel into furnaces and other heating appliances, and the inven-
tion consists, broadly, in the adaptation to the injector of a chamber in which
the stream of liquid fuel and the impelling medium is broken up, subdivided,
and heated before it escapes by the nozzle, thus ensuring the perfect combus-
tion of the fuel.
In carrying out this invention, a spherical or other shaped chamber is placed
between the fuel jet and the nozzle, and at the inlet to the chamber, and just
in front of the jet, is arranged a series of helical passages.
The effect of this arrangement is to divide up the stream of fuel and (say)
steam, into several streams, and to drive each stream against the inner wall
of the chamber, and thus, as the result of the impact, cause a minute sub-
division, and at the same time a complete mixture of the fuel and steam.
At the same time, the chamber, being partially heated, the fuel is, to an
extent, vapourized, and is thus in a better state to burn than if it were pro-
jected forward in a stream of liquid.
In fitting the improved burner to, say, a furnace door, a hole is formed in the
door somewhat larger than the spherical chamber, which is placed in the open-
ing half in and half out.
An air passage is thus provided all round the chamber, through which air
to support combustion is drawn in by the action of the burner.
The portion of the chamber inside the door will become heated, as before
referred to, and cause the vapourization of the fuel.
Dated this 19th dox of Sentember 1898
Improvements in Burners for Burning Hydrocarbons.
I, LEWIS COLLINGS BOYLE, of Sierra Leone, West Africa, at present residing
at Bank House, Cross Street, Barnstaple, in the County of Devon, Civil
Engineer, do hereby declare the nature of this invention and in what manner the
[Price Sd.]

page_text: same is to be performed, to be particularly described and ascertained in and by
the following statement:-
This invention relates to that class of hydrocarbon burner which is used for
injecting liquid fuel into furnaces and other heating appliances, and the inven-
tion consists, broadly, in the adaptation to the injector of a chamber in which
the stream of liquid fuel, and the impelling medium, is broken up, subdivided,
and heated, before it escapes by the nozzle, thus ensuring the perfect combus-
tion of the fuel.
In the accompanying drawing I have shown an injector embodying my
invention.
Fig. 1 is a longitudinal section of the arrangement complete, and
Figs. 2 and 3 are side and end views of a portion, detached, which will be
presently explained.
Referring to this drawing, A is a hollow casting, provided with a standard a
for attachment to a bracket B, near the mouth C of a liquid fuel furnace.
The casting A forms the passage for the blast, which may be steam entering
from the right. D is a spherical chamber screwed to the casting A, as shewn,
and E is a nozzle attached to the chamber D, on the side opposite the casting A.
F is the liquid fuel delivery pipe, discliarging into the casting A, and G is a
metallic plug of screw form inserted in the casting A at its point of communica-
tion with the chamber D, and serving to make a series of screwed or spiral
passages g.
When a steam or other suitable blast enters the casting A, the liquid fuel
from the pipe F is carried with it thro' the passages g, which subdivide the
current into several streams, to which is imparted the twist of the screw plug G.
These streams, entering the chamber D in a whirl, are dashed against the inner
wall thereof, with the result that a minute subdivision is caused, and, at the
same time, a complete mixture of the fuel and steam.
At the same time, the chamber being partially heated, the fuel is, to some
extent, vapourized, and is thus in a better state to burn than if it were pro-
jected forward in a stream of liquid.
In fitting the improved burner to, say, a furnace door, a hole is formed in the
door somewhat larger than the spherical chamber D, which is placed in the
opening, half in and half out, in the manner indicated at Fig. 1.
An air passage is thus provided all round the chamber, through which air
to support combustion is drawn in, in the direction of the arrows, by the action
of the burner.
The portion of the chamber inside the door will become heated, as before
mentioned, and cause the vapourization of the fuel.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is
1. A burner for liquid fuel constructed, arranged, and operating substantially
as described with reference to the accompanying drawing.
2. In a burner for liquid fuel, a device for dividing the fuel laden blast into
separate spiral streams, substantially as described with reference to the accom-
panying drawing, and for the purpose set forth.