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    • 3. 发明授权
    • Portable heat generating device
    • 便携式发热装置
    • US06289888B1
    • 2001-09-18
    • US09303276
    • 1999-04-30
    • Clifford G. Welles
    • Clifford G. Welles
    • A61F700
    • F24V30/00
    • A portable heat generating device in which fuel vapor and an oxygen supply (e.g. air) are directed through channels contained within a. thin, flexible and compliant elastomeric sheet of material. Elongated catalytic heat elements, placed strategically within the channels, spontaneously interact with the fuel-air stream liberating heat energy. Means and methods are defined that permit flameless catalytic combustion to be uniformly extended over the length of each heat element, lowering power density but maintaining the overall power generated, permitting the use of many types of low temperature materials like plastics, polymers, and elastomers in the construction of the heater. The heat generation process is started by pumping an air stream into a reservoir containing a fuel source (e.g. methanol) thereby saturating the air stream with fuel vapor. The fuel vapor is mixed with a another stream of air to achieve a particular fuel/air ratio and directed into channels within the elastomeric sheet, reacting with the catalytic heat elements to produce flameless combustion. The warm exhaust gas is directed to a thermally controlled diverter valve. The valve senses the temperature of the liquid fuel supply and diverts some or all of the warm exhaust gas, as necessary, to heat the fuel and keep its temperature within a specified range. Exhaust by-products are passed into a miniature scrubber module adjacent to the fuel module. The scrubber absorbs any noxious components in the exhaust stream that may occur during startup or rapid changes in operating condition.
    • 一种便携式发热装置,其中燃料蒸气和氧气供应(例如空气)被引导通过包含在其中的通道。 薄,柔性和柔顺的弹性片材料。 战略上放置在通道内的细长的催化热元件与释放热能的燃料 - 空气流自发地相互作用。 定义了方法和方法,其允许无焰催化燃烧在每个热元件的长度上均匀地延伸,降低功率密度,但是保持产生的总功率,允许使用许多类型的低温材料,如塑料,聚合物和弹性体 加热器的施工。 通过将空气流泵送到包含燃料源(例如甲醇)的储存器中来开始发热过程,从而使空气流与燃料蒸气饱和。 燃料蒸气与另一个空气流混合以实现特定的燃料/空气比并且引导到弹性体片材内的通道中,与催化加热元件反应以产生无焰燃烧。 热的废气被引导到热控制的转向阀。 阀门检测液体燃料供应的温度,并根据需要转移部分或全部热排气,以加热燃料并将其温度保持在指定范围内。 排气副产品被传递到与燃料模块相邻的微型洗涤器模块中。 洗涤器吸收可能在启动期间或操作条件的快速变化中排气流中的任何有害成分。
    • 5. 发明授权
    • Portable heat generating device
    • 便携式发热装置
    • US6138665A
    • 2000-10-31
    • US303275
    • 1999-04-30
    • Clifford G. Welles
    • Clifford G. Welles
    • A47G9/02A47G9/08F23C13/00F23K5/04A61F7/00
    • F23C13/00A47G9/0215A47G9/086F23K5/04Y02E20/342
    • A portable heat generating device in which fuel vapor (e.g. methanol) and an oxygen supply (e.g. air) are uniformly released through porous tubes woven with catalyst-impregnated glass filaments into a sheet-shaped, fabric-like structure enclosed in a mylar envelope. The catalyst promotes flameless combustion of the fuel vapor and oxygen, with consequent heat release occurring uniformly over the fabric-like structure. The heat generation process is started by pumping liquid fuel and air into the porous tubes using a peristaltic pump, thereby building up hydraulic pressure within the liquid fuel portion of the microbore-tubes. The level of pressure sustained within the liquid fuel portion of the microbore-tubes is limited by a manually set variable pressure release valve. The pressure in the microbore-tubes forces the liquid fuel within the porous microbore-tubing through the pores where it is converted into a vapor state before reacting with the oxygen and catalyst to produce flameless combustion. An exhaust tube expels the by-products of flameless combustion (i.e., mainly CO2 and H2O) from the enclosing envelope directly to the ambient atmosphere. As these gases escape from the envelope, a one-way check valve opens to refresh the air supply delivered to the air-carrying microbore-tubes to sustain the heat generating reaction without requiring continuous operation of the pump.
    • 一种便携式发热装置,其中燃料蒸气(例如甲醇)和氧供应(例如空气)通过多孔管通过多孔管均匀地释放,所述多孔管由催化剂浸渍的玻璃丝编织成封闭在聚脂薄膜包层中的片状织物状结构。 催化剂促进燃料蒸气和氧的无焰燃烧,随之而来的散热在织物状结构上均匀地发生。 通过使用蠕动泵将液体燃料和空气泵送到多孔管中开始发热过程,由此在微孔的液体燃料部分内建立液压。 在微孔管的液体燃料部分内承受的压力水平受到手动设定的可变压力释放阀的限制。 微孔管中的压力迫使多孔微孔管内的液体燃料通过孔,在其与氧气和催化剂反应之前转化为蒸汽状态,以产生无焰燃烧。 排气管将无焰燃烧(即主要是CO 2和H 2 O)的副产物从包围的外壳直接排放到周围的大气中。 当这些气体从外壳逸出时,单向止回阀打开以刷新输送到空运微孔管的空气供应,以维持发热反应,而不需要泵的连续操作。
    • 6. 发明授权
    • Portable heat generating device
    • 便携式发热装置
    • US6062210A
    • 2000-05-16
    • US18769
    • 1998-02-04
    • Clifford G. Welles
    • Clifford G. Welles
    • F24V30/00A61F7/00F24J1/00
    • F24J1/00
    • A portable heat generating device in which fuel vapor and an oxygen supply (e.g. air) are directed through channels contained within a thin, flexible and compliant elastomeric sheet of material. Elongated catalytic heat elements, placed strategically within the channels, spontaneously interact with the fuel-air stream liberating heat energy. Means and methods are defined that permit flameless catalytic combustion to be uniformly extended over the length of each heat element, lowering power density but maintaining the overall power generated, permitting the use of many types of low temperature materials like plastics, polymers, and elastomers in the construction of the heater. The heat generation process is started by pumping an air stream into a reservoir containing a fuel source (e.g. methanol) thereby saturating the air stream with fuel vapor. The fuel vapor is mixed with a another stream of air to achieve a particular fuel/air ratio and directed into channels within the elastomeric sheet, reacting with the catalytic heat elements to produce flameless combustion. The warm exhaust gas is directed to a thermally controlled diverter valve. The valve senses the temperature of the liquid fuel supply and diverts some or all of the warm exhaust gas, as necessary, to heat the fuel and keep its temperature within a specified range. Exhaust by-products are passed into a miniature scrubber module adjacent to the fuel module. The scrubber absorbs any noxious components in the exhaust stream that may occur during start-up or rapid changes in operating condition.
    • 一种便携式发热装置,其中燃料蒸气和氧气供应(例如空气)被引导通过容纳在薄的,柔性和柔顺的弹性材料片材内的通道。 战略上放置在通道内的细长的催化热元件与释放热能的燃料 - 空气流自发地相互作用。 定义了方法和方法,其允许无焰催化燃烧在每个热元件的长度上均匀地延伸,降低功率密度,但是保持产生的总功率,允许使用许多类型的低温材料,如塑料,聚合物和弹性体 加热器的施工。 通过将空气流泵送到包含燃料源(例如甲醇)的储存器中来开始发热过程,从而使空气流与燃料蒸气饱和。 燃料蒸气与另一个空气流混合以实现特定的燃料/空气比并且引导到弹性体片材内的通道中,与催化加热元件反应以产生无焰燃烧。 热的废气被引导到热控制的转向阀。 阀门检测液体燃料供应的温度,并根据需要转移部分或全部热排气,以加热燃料并将其温度保持在指定范围内。 排气副产品被传递到与燃料模块相邻的微型洗涤器模块中。 洗涤器吸收排气流中可能在启动期间或运行状态快速变化时发生的任何有害成分。
    • 7. 发明授权
    • Mechanically compliant and portable catalytic heating device
    • 机械兼容和便携式催化加热装置
    • US5901698A
    • 1999-05-11
    • US763603
    • 1996-12-11
    • Clifford G. Welles
    • Clifford G. Welles
    • A47G9/02A47G9/08F23C13/00F23K5/04A61F7/00
    • F23C13/00A47G9/0215A47G9/086F23K5/04Y02E20/342
    • A portable heat generating device in which fuel vapor (e.g. methanol) and an oxygen supply (e.g. air) are uniformly released through porous tubes woven with catalyst-impregnated glass filaments into a sheet-shaped, fabric-like structure enclosed in a mylar envelope. The catalyst promotes flameless combustion of the fuel vapor and oxygen, with consequent heat release occurring uniformly over the fabric-like structure. The heat generation process is started by pumping liquid fuel and air into the porous tubes using a peristaltic pump, thereby building up hydraulic pressure within the liquid fuel portion of the microbore-tubes. The level of pressure sustained within the liquid fuel portion of the microbore-tubes is limited by a manually set variable pressure release valve. The pressure in the microbore-tubes forces the liquid fuel within the porous microbore-tubing through the pores where it is converted into a vapor state before reacting with the oxygen and catalyst to produce flameless combustion. An exhaust tube expels the by-products of flameless combustion (i.e., mainly CO2 and H2O) from the enclosing envelope directly to the ambient atmosphere. As these gases escape from the envelope, a one-way check valve opens to refresh the air supply delivered to the air-carrying microbore-tubes to sustain the heat generating reaction without requiring continuous operation of the pump.
    • 一种便携式发热装置,其中燃料蒸气(例如甲醇)和氧供应(例如空气)通过多孔管通过多孔管均匀地释放,所述多孔管由催化剂浸渍的玻璃纤维编织成封闭在聚酯薄膜包层中的片状织物状结构。 催化剂促进燃料蒸气和氧的无焰燃烧,随之而来的散热在织物状结构上均匀地发生。 通过使用蠕动泵将液体燃料和空气泵送到多孔管中开始发热过程,由此在微孔的液体燃料部分内建立液压。 在微孔管的液体燃料部分内承受的压力水平受到手动设定的可变压力释放阀的限制。 微孔管中的压力迫使多孔微孔管内的液体燃料通过孔,在其与氧气和催化剂反应之前转化为蒸汽状态,以产生无焰燃烧。 排气管将无焰燃烧(即主要是CO 2和H 2 O)的副产物从包围的外壳直接排放到周围的大气中。 当这些气体从外壳逸出时,单向止回阀打开以刷新输送到空运微孔管的空气供应,以维持发热反应,而不需要泵的连续操作。