Heat transfer system for a co-generation unit
    1.
    发明授权
    Heat transfer system for a co-generation unit 失效
    联合发电机组换热系统

    公开(公告)号:US06729133B1

    公开(公告)日:2004-05-04

    申请号:US10356826

    申请日:2003-02-03

    IPC分类号: F02B5904

    摘要: A heat exchange cooling system for an internal combustion engine co-generation plant, which allows exhaust recycled gas combustion while maintaining lower head temperatures to reduce thermal NOx emissions while delivering increased process/utility heat to a proximate co-generation client, is provided. The cooling system has two cooling loops with different flow rates: one through the engine and the second through exhaust manifolds, such that higher engine block flow resulting in cooler head temperatures is provided, while allowing higher temperature coolant to flow through exhaust exchangers, such that when the two coolant flows converge at a process/utility heat exchanger for heating co-generation client liquid, the combined flows substantially increase the transferred heat. In another embodiment, a separate intercooler circuit is used to cool the compressed intake charge containing the recycled gas prior to entry into the intake engine manifold to further reduce head temperatures and control thermal NOx emissions.

    摘要翻译: 提供了一种用于内燃机共发电厂的热交换冷却系统,其允许废气再循环气体燃烧同时保持较低的头部温度以减少热NOx排放,同时向邻近的共同发电客户端提供增加的过程/效用热量。 冷却系统具有两个具有不同流量的冷却回路:一个通过发动机和第二个通过排气歧管,从而提供更高的发动机缸体流量,从而产生更冷的头部温度,同时允许较高温度的冷却剂流过排气交换器,使得 当两个冷却剂流在汇流处理/公用热交换器处汇聚以加热共发生客户液体时,组合的流量显着增加了转移的热量。 在另一个实施例中,使用单独的中间冷却器回路在进入进气发动机歧管之前冷却包含再循环气体的压缩进气,以进一步降低喷头温度并控制热NOx排放。

    Fuel regulator for natural gas fired co-generation unit
    2.
    发明授权
    Fuel regulator for natural gas fired co-generation unit 失效
    燃气调节器用于燃气发电机组

    公开(公告)号:US06748932B1

    公开(公告)日:2004-06-15

    申请号:US10361538

    申请日:2003-02-10

    IPC分类号: F02B4300

    摘要: A natural gas fuel regulator for a natural gas fueled internal combustion engine for driving a co-generation plant, which allows exhaust recycled gas combustion while maintaining lower head temperatures to reduce thermal NOx emissions. The gas regulator has a modulation chamber, which modulates incremental pressure changes from the carburetion system to allow the engine to respond to load changes without the necessity for dynamic control feed back valve. In one aspect, a non-diaphragm venturi fuel/air-mixing unit with post turbo charger throttle adjustment is downstream of the natural gas fuel regulator to provide lean burn, low thermal NOx operation of the co-generation unit from no load to full load electrical generation.

    摘要翻译: 一种用于天然气燃料内燃机的天然气燃料调节器,用于驱动共发电厂,其允许废气再循环气体燃烧同时保持较低的燃烧头温度以减少热NOx排放。 气体调节器具有调制室,其调节来自化油系统的增量压力变化,以允许发动机响应负载变化而不需要动态控制反馈阀。 在一个方面,具有后涡轮增压器节气门调节的非隔膜文丘里管燃料/空气混合单元位于天然气燃料调节器的下游,以提供稀燃燃烧,从无负载到满负荷的共发电单元的低热NOx运行 发电。

    Carburetion for natural gas fueled internal combustion engine using recycled exhaust gas
    3.
    发明授权
    Carburetion for natural gas fueled internal combustion engine using recycled exhaust gas 失效
    使用再生废气的天然气燃料内燃机的化油

    公开(公告)号:US06880535B2

    公开(公告)日:2005-04-19

    申请号:US10378736

    申请日:2003-03-04

    摘要: A carburetion system, without complicated control systems, functions uniformly throughout the range of engine load and incremental increases of power demand to provide efficient stable engine performance for a natural gas fired, internal combustion engine using EGR. A cogeneration system for supplying distributed generation of electricity and process/utility heat, employs a system for engine cooling and effective heat transfer to a cogeneration client, reduces engine head temperature, thereby reducing fuel consumption and reducing pollutants, as well as delivering substantially increased heat to a cogeneration process/utility heat facility by use of a carburetion system which employs at least a pair of spaced apart venturi positioned in series proximate one to another such that a first exhaust recycled gas venturi is upstream of a fuel venturi where fuel and air/exhaust gas are admixed prior to the resultant gas being introduced into a turbocharger. The distance between the exhaust venturi and fuel venturi is affective to provide a given amount of exhaust gas to air ratio prior to entering the fuel venturi inlet. Unexpectedly the spatial relationship between the two venturi, one to the other, affectively regulates exhaust gas air mixture, as well as the air/fuel/exhaust gas mixture to the engine by means solely of pressure increase and decrease (vacuum) of the engine intake system.

    摘要翻译: 没有复杂控制系统的化油系统在整个发动机负载范围内均匀起作用,并且增加功率需求,为使用EGR的天然气燃烧内燃机提供有效的稳定的发动机性能。 用于供应分布式发电和过程/公用事业热的热电联产系统采用发动机冷却系统和对热电联供客户有效的热传递系统,降低发动机机头温度,从而降低燃料消耗并减少污染物质,并提供显着增加的热量 通过使用化油系统进行热电联产过程/公用设施,该化油系统使用至少一对间隔开的文氏管,其彼此靠近地定位成串联连接,使得第一排气再循环气体文氏管在燃料文丘里管的上游,其中燃料和空气/ 在将所产生的气体引入涡轮增压器之前将废气混合。 排气文丘里管和燃料文丘里管之间的距离是有意义的,以在进入燃料文丘里管入口之前提供给定量的废气与空气的比例。 意外的是,两个文丘里管之间的空间关系一个一个地将排气气体混合物以及空气/燃料/废气混合物调节到发动机,仅通过发动机进气口的压力增加和减小(真空度) 系统。