초록 ▼

A small, lightweight, portable cooking stove that utilizes alcohol as fuel and is suitable for backpacking, hunting, camping and similar activities. The cooking stove includes a combustion chamber which encloses, contains and regulates the entire combustion process. The stove also includes an effici

A small, lightweight, portable cooking stove that utilizes alcohol as fuel and is suitable for backpacking, hunting, camping and similar activities. The cooking stove includes a combustion chamber which encloses, contains and regulates the entire combustion process. The stove also includes an efficient fuel vaporizer, which is adapted to perform in unison with the combustion chamber, to effect the metered and efficient mixing of the air and fuel vapor. An integral, simple and convenient means is provided to vary the intensity and pattern of the heat output, thereby controlling the cooking performance of the stove. The stove achieves high heat output and efficiency, low fuel consumption, and superior cooking performance in a small, lightweight, portable, convenient, simple and integrated assembly.

대표청구항 ▼

1. A lightweight, portable cooking stove comprising the combination of: a fuel vaporizer supported by a supporting surface and substantially axially aligned with a combustion chamber, the combustion chamber comprising:a wall having an upper end and a lower end, the lower end for engaging the support

1. A lightweight, portable cooking stove comprising the combination of: a fuel vaporizer supported by a supporting surface and substantially axially aligned with a combustion chamber, the combustion chamber comprising:a wall having an upper end and a lower end, the lower end for engaging the supporting surface, the wall having a defined interior shape and comprising a first row of substantially equally spaced ports and a second row of substantially equally spaced ports, the first and second rows of ports separated by a predetermined longitudinal distance whereby the first row of ports is substantially longitudinally aligned with the fuel vaporizer and the second row of ports is above the fuel vaporizer;an obturating device movably supported on the wall for selectively covering, at least partially, one or the other of the first row of ports or the second row of ports; anda pot support for supporting a cooking pot within the wall of the combustion chamber wherein a lower portion of the cooking pot is located within the upper end of the wall of the combustion chamber, the cooking pot having a defined exterior shape smaller than the defined interior shape of the wall of the combustion chamber to form an annular gap between the cooking pot and the combustion chamber wall;whereby air entering the first row or the second row of ports extending through the combustion chamber wall mixes with vaporized fuel discharged from the fuel vaporizer to form a combustible mixture of fuel and air thereby producing products of combustion that engage a substantial portion of the defined exterior shape of the cooking pot and are drawn towards and exhaust through the annular gap. 2. The cooking stove according to claim 1 wherein the defined interior shape of the combustion chamber wall has a circular cross-section. 3. The cooking stove according to claim 1 wherein the defined interior shape of the combustion chamber wall is cylindrical. 4. The cooking stove according to claim 1 wherein the defined exterior shape of the cooking pot is cylindrical. 5. The cooking stove according to claim 1 wherein the pot support within the combustion chamber wall comprises at least one rod extending through orifices perforated in the upper end of the wall and supported by the wall. 6. The cooking stove according to claim 1 wherein the upper end of the combustion chamber wall further comprises at least one opening to allow for exhausting of the products of combustion. 7. The cooking stove according to claim 1 wherein the annular gap formed between the cooking pot and the combustion chamber wall is less than one-half inch at a narrowest point. 8. The cooking stove according to claim 1 wherein the annular gap formed between the cooking pot and the combustion chamber wall is approximately three-sixteenths of an inch at a narrowest point. 9. The cooking stove according to claim 1 wherein the fuel vaporizer comprises: an outer chamber defined by a first cylinder having an upper end, a lower end, an outer surface, an inner surface, and a first imperforate bottom wall extending across the lower end;an inner chamber defined by a second cylinder having an upper end, a lower end, an outer surface, an inner surface, and a second imperforate bottom wall extending across the lower end thereby defining an inner fuel receiving chamber;the inner chamber axially aligned within the outer chamber;the outer surface of the second cylinder spaced apart from the inner surface of the first cylinder to define an annularly spaced outer fuel vaporizing chamber therebetween;a top wall extending across the upper end of the outer fuel vaporizing chamber, the top wall comprising a plurality of apertures formed therethrough at substantially equally spaced intervals around the outside surface of the first cylinder and the inside surface of the second cylinder to facilitate the passage of vaporized fuel from the outer fuel vaporizing chamber into the combustion chamber; andat least one opening extending between the inner fuel receiving chamber and the outer fuel vaporizing chamber and located adjacent to the lower end of the outer fuel vaporizing chamber. 10. The cooking stove according to claim 1 wherein the combustion chamber wall is coil formable. 11. The cooking stove according to claim 10 wherein the combustion chamber wall comprises first and second ends, the defined interior shape being formed when the first and second ends are fastened together and the wall forming a coil when the first and second ends are unfastened. 12. The cooking stove according to claim 11 wherein the wall of the combustion chamber comprises a metal sheet. 13. The cooking stove according to claim 12 wherein the metal sheet is formed of aluminum. 14. The cooking stove according to claim 10 wherein the defined interior shape of the coil formable combustion chamber wall is scalable to accommodate cooking pots of varying sizes.