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    • 14. 发明申请
    • Exhaust aftertreatment system with transmission control
    • 排气后处理系统带传动控制
    • US20070079603A1
    • 2007-04-12
    • US11245880
    • 2005-10-07
    • Haoran HuThomas StoverJames McCarthy
    • Haoran HuThomas StoverJames McCarthy
    • F01N3/00
    • F02D41/0275F02D41/0215F02D2400/12Y10T477/653Y10T477/663
    • A power generation system comprising a LNT for exhaust aftertreatment. The LNT has an effective operating temperature range. When the LNT is near a limit of its effective operating temperature range, the transmission is used to select operating points that increase the LNT's effectiveness. Generally, these operating points reduce the exhaust flow rate, although other factors such as the exhaust temperature may also be taken into account in selecting the operating points. Preferably, the LNT's effective operating temperature-range includes exhaust temperatures produced by the engine at its point of peak power output, whereby the LNT does not approach the limits of its effective operating temperature range except when the engine is at less than peak power. At lower power levels, it is generally possible to select operating points that provide lower exhaust flow rates than the flow rate occurring at the peak power level.
    • 一种发电系统,包括用于排气后处理的LNT。 LNT具有有效的工作温度范围。 当LNT接近其有效工作温度范围的极限时,传输用于选择增加LNT效能的工作点。 通常,这些操作点降低排气流量,但是在选择工作点时也可以考虑排气温度等其他因素。 优选地,LNT的有效工作温度范围包括发动机在其峰值功率输出点产生的排气温度,由此LNT不接近其有效工作温度范围的限制,除非发动机低于峰值功率。 在较低的功率水平下,通常可以选择提供比在峰值功率水平下发生的流量更低的排气流量的工作点。