Low cost, wind proof cigarette lighter burner
阅读：529发布：2021-01-24
专利汇可以提供Low cost, wind proof cigarette lighter burner专利检索，专利查询，专利分析的服务。并且In the construction disclosed herein, a tubular burner member is crimped adjacent one end and in an intermediate portion to form air inlets and a jet pump, respectively. Inserted into the other, open end of the tubular member is a disk-like flame-holder having inwardly extending vanes struck from the sheet metal material of the flameholder, which vanes cooperate with a central hub in the flameholder to provide reliable recirculation and ignition of the incoming air-fuel mixture.，下面是Low cost, wind proof cigarette lighter burner专利的具体信息内容。
1. In a cigarette lighter operating on compressed gas fuel provided through a fuel stem, a burner comprising: a sheet metal tubular member, having a nominal diameter of 1/4 inch or less, shaped adjacent one end to provide air entrance channels on either side of said fuel feed stem, said tubular member being shaped intermediate its ends providing a jet pump tube coaxial with said fuel jet, the fuel jet thereby operating to entrain air drawn through said entrance channels; and inserted into the other end of said tubular member, a disk-like sheet metal flameholder having a plurality of circumferentially disposed vanes struck from the material of said flameholder, leaving a substantial central hub, said vanes being inclined with respect to the plane of the disk-like flameholder thereby to produce a helical spin of gases passing through said flameholder, whereby a recirculation zone is formed downstream of said hub allowing hot, burned gases to be recirculated and ignite incoming air-fuel mixture, the spin of gases causing cooler, unburned gases to tend to the periphery of the burner with the hotter gases tending toward the axis of the burner facilitating recirculation and preventing extinguishment due to cold wall effects.
2. A burner as set forth in claim 1 including a wire extending across the open end of said burner, which wire is heated to incandescence by combustion within said tubular member.
3. In a cigarette lighter operating on compressed gas fuel provided through a fuel stem terminating in a gas jet, a burner comprising: a tubular member constricted adjacent one end to engage and clamp on said fuel feed stem and to provide air entrance channels adjacent thereto, said tubular member being constricted intermediate its ends providing a jet pump tube coaxial with said fuel jet, the fuel jet thereby operating to entrain air drawn through said entrance channels; and inserted into the other end of said tubular member, a disk-like flameholder having a plurality of circumferentially disposed vanes leaving a substantial central hub about half the diameter of the tubular member, said vanes projecting toward the jet pump tube and being inclined with respect to the plane of the disk-like flameholder at an angle of less than 45* thereby to produce a helical spin of gases passing through said flameholder, whereby a recirculation zone is formed downstream of said hub allowing hot, burned gases to be recirculated and ignite incoming air-fuel mixture, the spin of gases causing cooler, unburned gases to tend to the periphery of the burner with the hotter gases tending toward the axis of the burner facilitating recirculation and preventing extinguishment due to cold wall effects.
4. In a cirgarette lighter operating on compressed gas fuel provided through a fuel stem terminating in a gas jet, a burner comprising: a sheet metal tubular member, having a nominal diameter of 1/4 inch or less, crimped adjacent one end to engage and clamp on said fuel feed stem and to provide air entrance channels on either side of said fuel feed stem, said tubular member being crimped intermediate its ends to provide a jet pump tube coaxial with said gas jet, the gas jet thereby operating to entrain air drawn through said entrance channels; and inserted into the other end of said tubular member, a disk-like sheet metal flameholder having an annular rim engaging said tubular member to support the flameholder therein, said flameholder having a plurality of circumferentially disposed vanes struck from the material of said flameholder leaving a substantial central hub of about half the diameter of the tubular member, said vanes projecting toward the jet pump tube and being inclined with respect to the plane of the disk-like flameholder at an angle of less than 45* thereby to produce a helical spin of gases passing through said flameholder, the struckout area of the vanes comprising about one-third of the cross-sectional area of the tubular member, whereby a recirculation zone is formed downstream of said hub allowing hot, burning gases to be recirculated and ignite incoming air-fuel mixture, the spin of gases causing cooler, unburned gases to tend to the periphery of the burner with the hotter gases tending toward the axis of the burner facilitating recirculation.
5. A burner as set forth in claim 4 including a wire extending across to the open end of said burner, which wire is heated to incandescence by combustion within said tubular member.
6. In a cigarette lighter operating on compressed gas fuel provided through a fuel stem terminating in a gas jet, a burner comprising: a sheet metal tubular member crimped adjacent one end to engage and clamp on said fuel feed stem and to provide air entrance channels on either side of said fuel feed stem, said tubular member being crimped intermediate its ends to provide a jet pump tube coaxial with said gas jet, the gas jet thereby operating to entrain air drawn through said entrance channels; and inserted into the other end of said tubular member, a disk-like sheet metal flameholder having an annular rim engaging said tubular member to support the flameholder therein, the unconstricted portion of said tubular member extending beyond said flameholder forming a combustion chamber, the diameter of said unconstricted portion being in the order of 0.20 inches, said flameholder having a plurality of circumferentially disposed vanes struck from the material of said flameholder leaving a substantial central hub of about half the diameter of the tubular member, said vanes projecting toward the jet pump tube and being inclined with respect to the plane of the disk-like flameholder at an angle of less than 45* thereby to produce a helical spin of gases passing through said flameholder, the struckout area of the vanes comprising about one-third of the cross-sectional area of the tubular member, whereby a recirculation zone is formed downstream of said hub allowing hot, burning gases to be recirculated and ignite incoming air-fuel mixture, the spin of gases causing cooler, unburned gases to tend to the periphery of the burner with the hotter gases tending toward the axis of the burner facilitating recirculation.
7. In a cigarette lighter operating on compressed gas fuel provided through a fuel stem terminating in a gas jet, a burner comprising: a sheet metal tubular member, having a nominal diameter of 1/4 inch or less, shaped adjacent one end to provide air entrance channels adjacent said fuel feed stem, said tubular member being formed intermediate its ends providing a jet pump tube of diameter about 0.025 inches coaxial with said gas jet, the gas jet thereby operating to entrain air drawn through said entrance channels; and inserted into the other end of said tubular member, a disk-like sheet metal flameholder engaging said tubular member to support the flameholder therein, the unconstricted portion of said tubular member extending beyond said flameholder forming a combustion chamber, the diameter of said unconstricted portion being in the order of 0.20 inches and length in the order of 0.20 inches, said flameholder having a plurality of circumferentially disposed vanes struck from the material of said flameholder leaving a substantial central hub of about half the diameter of the tubular member, said vanes projecting toward the jet pump tube and being inclined with respect to the plane of the disk-like flameholder at an angle of less than 45* thereby to produce a helical spin of gases passing through said flameholder, whereby a recirculation zone is formed downstream of said hub allowing hot, burning gases to be recirculated and ignite incoming air-fuel mixture, the spin of gases causing cooler, unburned gases to tend to the periphery of the burner with the hotter gases tending toward the axis of the burner facilitating recirculation and preventing extinguishment due to cold wall effects.
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