Combustion – Pot type burner – Having means for continuously feeding fuel
Patent
1994-08-22
1995-12-26
Dority, Carroll B.
Combustion
Pot type burner
Having means for continuously feeding fuel
431340, 431342, 431262, F23D 502
Patent
active
054782333
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a burner for burning vapourized liquid fuel, such as diesel oil, which is intended to be introduced into a preferably, essentially cylindrical combustion chamber through a fuel delivery inlet, which is preferably located at the bottom of the burner, the combustion chamber being open at its end opposite to the bottom of the burner. The burner includes ignition means, such as an ignition coil, for initial ignition of vapourized fuel, and the combustion chamber includes holes through which air of combustion is delivered to the combustion chamber, in which at least one essentially disk-shaped annulus or the like extends peripherally around the combustion chamber and extends radially inwards from the wall of the chamber.
Burners of this general kind are known to the art. One problem of burners of this kind resides in effectively vapourizing the fuel, which is normally delivered at a predetermined rate of flow per unit of time and will thus accumulate in the combustion chamber if not vapourized. Another problem resides in achieving an effective mixture of vapourized fuel and combustion air, so as to achieve complete combustion in the absence of soot formations. Still another problem is one of achieving quiet combustion in the absence of pulsations.
SUMMARY OF THE INVENTION
The present invention provides a burner with which these problems are solved in a very simple and effective manner. The burner also includes complementary constructive features, which result in a highly effective and operationally reliable burner.
The invention thus relates to a burner for burning vapourized liquid fuel, such as diesel oil, which comprises a preferably cylindrical combustion chamber to which fuel is delivered through a chamber inlet, preferably located at the bottom of the chamber, the chamber being open at the end opposite to said bottom, and further comprising an ignition means, such as an ignition coil, for initial ignition of vapourized fuel, and wherein holes are provided in the combustion chamber for the delivery of air of combustion thereto, and wherein the combustion chamber includes at least one essentially disk-shaped annulus or the like which extends circumferentially around the combustion chamber and projects radially inwards from the chamber wall.
The burner is mainly characterized in that at least one body is placed preferably centrally in the combustion chamber and extends from the bottom of the chamber to an upper part thereof and functions to assist in achieving complete combustion of the fuel delivered to the chamber.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described in more detail with reference to exemplifying embodiments thereof and also with reference to the accompanying drawings, in which
FIG. 1 is a vertical, schematic central sectional view of a first embodiment of an inventive burner;
FIG. 2 illustrates schematically part of an alternative construction of the burner in the vicinity of a burner flame monitor;
FIG. 3 is a side view of an upper part of a cylindrical, basin-shaped body which forms the upper part of the combustion chamber;
FIG. 4 illustrates a first embodiment of an annulus, as seen from above in FIG. 1;
FIG. 5 illustrates another embodiment of an annulus, as seen from above in FIG. 1; and
FIG. 6 illustrates a third embodiment of an annulus, as seen from above in FIG. 1;
FIGS. 7A-7C illustrate the orientation of the respective levels of holes provided in the wall of the combustion chamber; and
FIG. 8 illustrates another orientation of the holes provided in the wall of the combustion chamber.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Shown in FIG. 1 is a burner 1 for burning vapourized liquid fuel, such as diesel oil. The burner includes an inlet 2, which in the illustrated case is located at the bottom 3 of a preferably cylindrical combustion chamber 4, wherein fuel is introduced into the burner through the inlet 2. The combustion chamber 4 is open at the end 5 thereof opposite to the bottom 3
REFERENCES:
patent: 2351481 (1944-06-01), Breese
patent: 2483978 (1949-10-01), Little
patent: 2710652 (1955-06-01), Ambrose
patent: 3017925 (1962-01-01), Breeze et al.
Dority Carroll B.
Kent Svensson
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