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    • 4. 发明授权
    • Thermoelectric generators incorporating phase-change materials for waste heat recovery from engine exhaust
    • 引入发动机废气余热回收的相变材料的热电发生器
    • US08646261B2
    • 2014-02-11
    • US12892983
    • 2010-09-29
    • Gregory P. MeisnerJihui Yang
    • Gregory P. MeisnerJihui Yang
    • F01N3/00F01N3/02F01N3/20H01L35/30
    • H01L35/30F01N5/025F01N2410/02
    • Thermoelectric devices, intended for placement in the exhaust of a hydrocarbon fuelled combustion device and particularly suited for use in the exhaust gas stream of an internal combustion engine propelling a vehicle, are described. Exhaust gas passing through the device is in thermal communication with one side of a thermoelectric module while the other side of the thermoelectric module is in thermal communication with a lower temperature environment. The heat extracted from the exhaust gasses is converted to electrical energy by the thermoelectric module. The performance of the generator is enhanced by thermally coupling the hot and cold junctions of the thermoelectric modules to phase-change materials which transform at a temperature compatible with the preferred operating temperatures of the thermoelectric modules. In a second embodiment, a plurality of thermoelectric modules, each with a preferred operating temperature and each with a uniquely-matched phase-change material may be used to compensate for the progressive lowering of the exhaust gas temperature as it traverses the length of the exhaust pipe.
    • 描述了用于放置在烃燃料燃烧装置的排气中并且特别适合用于推动车辆的内燃机的排气流中的热电装置。 通过设备的废气与热电模块的一侧热连通,而热电模块的另一侧与较低温度环境热连通。 从废气中提取的热量由热电模块转换为电能。 通过将热电模块的热连接和冷接头热耦合到在与热电模块的优选操作温度相适应的温度下变换的相变材料来增强发电机的性能。 在第二实施例中,可以使用多个具有优选工作温度并且各自具有唯一匹配的相变材料的热电模块来补偿当排气温度横穿排气长度时逐渐降低排气温度 管。
    • 5. 发明授权
    • Bypass valve and coolant flow controls for optimum temperatures in waste heat recovery systems
    • 旁路阀和冷却液流量控制,以实现废热回收系统的最佳温度
    • US08554407B2
    • 2013-10-08
    • US13247502
    • 2011-09-28
    • Gregory P. Meisner
    • Gregory P. Meisner
    • G01C21/00
    • H01L35/30F01N5/025G05B15/02Y02T10/16
    • Implementing an optimized waste heat recovery system includes calculating a temperature and a rate of change in temperature of a heat exchanger of a waste heat recovery system, and predicting a temperature and a rate of change in temperature of a material flowing through a channel of the waste heat recovery system. Upon determining the rate of change in the temperature of the material is predicted to be higher than the rate of change in the temperature of the heat exchanger, the optimized waste heat recovery system calculates a valve position and timing for the channel that is configurable for achieving a rate of material flow that is determined to produce and maintain a defined threshold temperature of the heat exchanger, and actuates the valve according to the calculated valve position and calculated timing.
    • 实施优化的废热回收系统包括计算废热回收系统的热交换器的温度和温度变化率,并预测流过废物通道的材料的温度和温度变化率 热回收系统。 在确定材料的温度变化率被预测为高于热交换器的温度变化率时,优化的废热回收系统计算可配置为实现的通道的阀位置和时序 被确定为产生和保持热交换器的确定的阈值温度并且根据计算的阀位置和计算的定时致动阀的物料流量。