Stoves and furnaces – Hot-air furnaces – Horizontal combustion chamber
Patent
1981-01-07
1983-06-28
O'Connor, Daniel J.
Stoves and furnaces
Hot-air furnaces
Horizontal combustion chamber
126 99D, 126 61, F24H 306
Patent
active
043900046
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention refers to a furnace for firing with optional fuels.
2. Description of the Prior Art
Furnances nowadays used often have a limited usefullness. This is a particularly pronounced deficiency, e.g., in agriculture where for drying of crops there is temporarily needed large supplies of hot air. Special furnaces for this purpose which are available on the market are generally designed to be useable only for such purpose and can only be fired with liquid fuels. This is an evident drawback as the farmer often has at his disposal comparatively cheap, solid fuels of different types.
BRIEF SUMMARY OF THE INVENTION
The object of the present invention is to provide a furnace which can not only be used for production of hot air, but which is also adaptable in other ways for forming a universal furnace which is highly adaptable to different working conditions and performance desires, e.g for hot water heating, for heating of farm buildings and dwelling-houses etc. and this is achieved with the furnace according to the invention by means of the characteristic features defined in the following description and annexed claims. The basic concept of the invention can lead to several different system solutions in which the entire system can have different designs beside the fact that the main components forming part of the system may be varied, although many of the details are known per se to an expert.
DESCRIPTION OF THE DRAWINGS
The invention will hereinafter be further described with reference to a number of embodiments schematically shown in the accompanying drawings wherein;
FIG. 1 is a schematic cross-sectional view through an embodiment of a furnace according to the invention,
FIG. 2 is an end view of the furnace according to FIG. 1,
FIG. 3 is a schematic perspective view of the furnace according to FIG. 1,
FIG. 4 is a longitudinal schematic sectional view through a modified embodiment of a furnace according to the invention,
FIGS. 5a and 5b are an end view and a longitudinal sectional view of a further modified embodiment, respectively,
FIGS. 6a and 6b are an end view and longitudinal sectional view through still another embodiment, respectively,
FIG. 7 is a schematic longitudinal sectional view through a further embodiment of the invention,
FIG. 8 is a perspective schematic view of a combustion chamber with quadrangular geometry,
FIG. 9 is a schematic longitudinal sectional view through a further modified furnace design,
FIGS. 10a and 10b are an end view and a schematic longitudinal cross-section respectively of a furnace design having a modified supply,
FIG. 11 is a schematic longitudinal sectional view of a further modified embodiment of the furnace according to the invention,
FIG. 12 is a perspective schematic view of perspective, the design principle for a square combustion chamber, and
FIGS. 13a and 13b are an end view and a schematic longitudinal sectional view respectively, of the embodiment according to FIG. 12.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
In FIG. 1 is schematically shown in a longitudinal section a combustion chamber 1 surrounded by two shells, where the outer one is provided with a furnace insulation 23. The space between the two shells is by means of sheet metal partitions 10 subdivided into an upper and a lower zone 2 and 3 respectively. In the upper zone air flow against the furnace front side, which is provided with a door 4 for introduction of fuel. The primary air for the combustion passes through an opening 15 in the front side of the furnace and secondary air is supplied from the opening 15 via a duct 17 through the door 4 to a secondary air inlet 16. The supply of primary as well as secondary air is preferably controlled by means of a thermostatic valve controlled adjuster which acts upon a draught door 18. The air passes from the upper zone 2 at the front part of the furnace over to the second, lower zone 3, but the partitions 10 are furthermore equipped with a number of perforations 11, which
REFERENCES:
patent: 1399756 (1921-12-01), Ellison
patent: 2109876 (1938-03-01), Bard
patent: 3995611 (1976-12-01), Nelson
patent: 4140101 (1979-02-01), Glover
patent: 4200086 (1980-04-01), Klob
patent: 4206744 (1980-06-01), Mahoney
Kardos Karl
Mattsson Bertil
Westermark Olle
Anderson G.
O'Connor Daniel J.
Produktutvecklingscentrum i Goteborg
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