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US 4,465,457 AGranted
Liquid fuel burning device
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKatsuhiko Ishikawa, Yoshitaka Kawasaki, Motoo Yotsuya
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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKatsuhiko Ishikawa, Yoshitaka Kawasaki, Motoo Yotsuya
Estimating the term…
A liquid fuel burning device suitable for kerosene stove, kerosene kitchen range or the like. The device has an inner and outer flame sleeves each having a multiplicity of pores and a wick interposed between these sleeves. The wick has a fuel evaporating portion projectable into the annular burning space formed between these sleeves. At least one of these sleeves is provided with at least one vertical row of air pores in its portion facing the fuel evaporating portion of the wick. Above the region of vertical row of air pores, formed is a horizontal row of air pores having a multiplicity of pores arranged at a higher density than the pores in the other portion of the wall. In the case where the vertical and horizontal rows of air pores are formed in the inner flame sleeve, a partition plate having apertures is attached to the inner side of the inner flame sleeve at a level above the horizontal row or air pores. The ratio of the total area of apertures in the partition plate is selected to be smaller than 20% of the horizontal cross-sectional area of the inner flame sleeve as measured at the inner side of the latter.
A liquid fuel burning device including an inner flame sleeve having a plurality of air pores in its wall, an outer flame sleeve surrounding said inner flame sleeve at a distance from the latter to form therebetween an annular burning space, said outer flame sleeve also having a plurality of air pores formed in the wall thereof, and a wick having a fuel evaporating portion projected into the burning space, characterized by comprising at least one vertical row of air pores formed in the wall of at least one of said inner flame sleeve and said outer flame sleeve facing said fuel evaporating portion and an auxiliary wick for propagating the starting flame, said auxiliary wick being disposed at the side of said fuel evaporating portion adjacent said inner flame sleeve or said outer flame sleeve with a fuel impermeable member interposed between the auxiliary wick and said fuel evaporating portion, said vertical row of air pores being formed in the wall of said flame sleeve which is on the opposite side of said fuel evaporating portion from said auxiliary wick;
Dependencies are inferred from the claim text.