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公开(公告)号：US4435151A
公开(公告)日：1984-03-06
申请号：US266138
申请日：1981-05-22
CPC分类号： F23N1/027 , F23N2025/08 , F23N2033/08 , F23N2035/16 , F23N2035/18 , F23N2035/20 , F23N2035/24 , F23N2035/28 , F23N2039/06 , Y10T137/2516 , Y10T137/7787
摘要： A fuel supply control system including a major area diaphragm and a minor area diaphragm defining therebetween a reference pressure chamber. A control pressure chamber is located adjacent the major area diaphragm on a side thereof opposite to the reference pressure chamber and a controlled pressure chamber is located adjacent the minor area diaphragm on a side thereof opposite to the reference pressure chamber. A valve is connected to the diaphragms for regulating the opening of an orifice of a fuel passage and the controlled pressure chamber serves as a chamber of the fuel passage. The control pressure chamber is connected to a combustion air supply passage system, and the reference pressure chamber is connected to a portion of an air supply and exhaust passage system, in which the pressure is lower than the pressure in the combustion air supply passage system.
摘要翻译： 一种燃料供给控制系统，包括主区域隔膜和在其间限定基准压力室的次区域隔膜。 控制压力室位于与基准压力室相对的一侧的主区域隔膜附近，并且受控压力室位于与参考压力室相对的一侧上的小区域隔膜附近。 阀连接到隔膜以调节燃料通道的孔的开口，并且受控压力室用作燃料通道的室。 控制压力室连接到燃烧空气供给通道系统，参考压力室连接到空气供排系统的一部分，其压力低于燃烧空气供应通道系统中的压力。
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公开(公告)号：US4289474A
公开(公告)日：1981-09-15
申请号：US44994
申请日：1979-06-04
申请人： Juichi Honda , Michiaki Matumoto , Sadao Mimori
发明人： Juichi Honda , Michiaki Matumoto , Sadao Mimori
摘要： A gaseous fuel-air premix combustion burner is disclosed wherein the production of oxides of nitrogen can be inhibited. By blowing secondary air onto at least a maximum temperature region of a secondary reaction region of a gaseous fuel-air premix combustion flame, it is possible to minimize the production of oxides of nitrogen not only in regions of the flame where the volume of primary air is smaller or larger than the theoretical volume of air but also in the vicinity of a region of the theoretical volume of air, whereby the area of a region where the production of oxides of nitrogen is reduced can be increased.
摘要翻译： 公开了一种气态燃料 - 空气预混合燃烧器，其中可以抑制氮氧化物的产生。 通过将二次空气吹入气态燃料 - 空气预混燃烧火焰的次级反应区域的至少最高温度区域，可以使氮气氧化物的产生最小化，不仅在火焰的区域中，一次空气的体积 小于或大于空气的理论体积，而且在理论空气体积的附近也可以增加氮的氧化物生成区域的面积减小的面积。
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公开(公告)号：US4311451A
公开(公告)日：1982-01-19
申请号：US942030
申请日：1978-09-13
申请人： Michiaki Matumoto , Sadao Mimori
发明人： Michiaki Matumoto , Sadao Mimori
CPC分类号： F23D14/74
摘要： A burner having main air ports for issuing a secondary air at a relatively high flow velocity, and auxiliary air ports for issuing a secondary air at a relatively low flow velocity located upstream of the main air ports with respect to a stream of a gaseous fuel or a preformed mixture of fuel and primary air in which the fuel is enriched over and above a flammability limit. The secondary air issuing from auxiliary air ports may have its flow velocity reduced by utilizing speed reducting compartments formed in a combustion chamber or recesses formed in walls of the combustion chamber. Flame stabilizing plates may be provided near the auxiliary air ports to extend substantially perpendicularly to the stream of the gaseous fuel or the preformed mixture of fuel and primary air. The main air ports may be in the form of a plurality of slits formed continuously in side-by-side relation in a secondary air passage located in the middle of and along a passage for the gaseous fuel or the preformed mixture of fuel and primary air. The slits each have an upper end portion in the form of an arc or an arcuate polygon at the inner surface. The secondary air passage may be formed on its upstream side with increased thickness portions in which slits are formed and contiguous with the secondary air issuing slits. The passage for the gaseous fuel or the preformed mixture of fuel and primary air may be formed with offset portions to widen the passage.
摘要翻译： 具有用于以相对较高流速发出二次空气的主要空气端口的燃烧器和用于以相对于气体燃料流或主要空气端口的上游相对较低流速发出二次空气的辅助空气端口， 燃料和一次空气的预制混合物，其中燃料富集并超过可燃性极限。 通过利用形成在燃烧室中形成的减速室或形成在燃烧室的壁中的凹部，从辅助空气口排出的二次空气可以使其流速降低。 可以在辅助空气端口附近设置火焰稳定板，以大致垂直于气态燃料流或预先形成的燃料和一次空气的混合物。 主空气端口可以是在位于中间并沿着气体燃料的通道或燃料和一次空气的预制混合物的二次空气通道中并排连续形成的多个狭缝的形式 。 狭缝各自具有在内表面处弧形或弓形多边形形式的上端部分。 二次空气通道可以在其上游侧形成有增加的厚度部分，其中形成狭缝并且与二次空气排出狭缝邻接。 用于气体燃料或预先形成的燃料和一次空气的混合物的通道可以形成有偏移部分以使通道变宽。
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公开(公告)号：US4396372A
公开(公告)日：1983-08-02
申请号：US192996
申请日：1980-10-02
CPC分类号： F23D11/448 , Y10S261/39
摘要： A burner system adapted to vaporize liquid fuel, generally kerosene, and burn gaseous fuel in blue flames includes an evaporator heated by a heater to about 250.degree.-300.degree. C. to vaporize the kerosene. The evaporator is thermally insulated from a premix passage and a burner, to reduce the time required for preheating the evaporator. At the time of ignition, the volume of a portion of primary air supplied to the evaporator is reduced below the corresponding volume supplied in maximum combustion condition and the volume of the kerosene supplied to the evaporator is substantially equal to the corresponding volume supplied in maximum combustion condition. This enables a premix of liquid and air within a combustible limit to be supplied to flame ports even if part of the premixture forms dew in the premix passage, and allows an enriched premixture to flow out of the flame ports at low velocity to facilitate ignition. The evaporator includes an air inlet in the form of a venturi having a throat in which a liquid fuel supply port opens, and an outlet opening in a throat of a venturi mounted in a passage for the rest of the primary air, to supply air at high flow velocity with a low air pressure developed by a blower. The air volume supplied to the evaporator is selected such that the ratio in weight of the air flow rate Ga to the kerosene flow rate Gl or Ga/Gl is between 0.3 and 5.0, to minimize the particle size of atomized kerosene and reduce the capacity of the heater.
摘要翻译： 适于蒸发液体燃料（通常为煤油）并且以蓝色火焰燃烧气态燃料的燃烧器系统包括由加热器加热至约250-300℃以蒸发煤油的蒸发器。 蒸发器与预混通道和燃烧器隔热，以减少预热蒸发器所需的时间。 在点燃时，供应到蒸发器的一次空气的一部分的体积被降低到在最大燃烧条件下提供的相应体积以下，并且供应到蒸发器的煤油的体积基本上等于在最大燃烧中供应的相应体积 条件。 这使得即使部分预混合物在预混合通道中形成露水，也可以将液体和空气在可燃极限内的预混合物供应到火焰口，并且允许富集的预混合物以低速流出火焰端口以促进点燃。 蒸发器包括文丘里管形式的空气入口，其中液体燃料供给口打开在喉部，并且安装在用于其余一次空气的通道中的文氏管的喉部中的出口开口， 鼓风机产生的低气压高流速。 选择供应到蒸发器的空气体积使得空气流量Ga与煤油流量G1或Ga / G1的重量比在0.3和5.0之间，以使雾化煤油的粒度最小化并降低 加热器。
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