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    • 7. 发明授权
    • PZEV exhaust gas recirculation valve with activated carbon
    • PZEV废气再循环阀带活性炭
    • US07478631B2
    • 2009-01-20
    • US11790537
    • 2007-04-26
    • Peter Curt Hueniken
    • Peter Curt Hueniken
    • F02M25/07F02B47/08
    • F02M26/72F02M25/08F02M26/47F02M26/50F02M26/67F02M26/74
    • An exhaust gas recirculation valve includes a body including a passageway extending between an inlet and an outlet. The passageway communicates a flow of the exhaust gases. A bearing, disposed in the body, has a bearing passageway. A valve member is located in the passageway between the inlet and outlet and has a portion movably disposed in the bearing passageway such that a clearance path is defined between the portion of the valve member and the bearing. The clearance path is in communication with atmosphere through openings in the body. The valve member is constructed and arranged to regulate the flow of the exhaust gases. Activated carbon is associated with a portion of the body so as to adsorb hydrocarbons associated with the clearance path and thus prevent hydrocarbons from escaping to the atmosphere through the openings in the body.
    • 排气再循环阀包括主体,该主体包括在入口和出口之间延伸的通道。 通道传送废气流。 设置在主体中的轴承具有轴承通道。 阀构件位于入口和出口之间的通道中,并且具有可移动地设置在轴承通道中的部分,使得在阀构件的部分和轴承之间限定间隙路径。 间隙通道通过体内的开口与大气连通。 阀构件被构造和布置成调节排气的流动。 活性炭与身体的一部分相关联,以吸附与间隙通道相关联的烃,从而防止碳氢化合物通过体内的开口逸出到大气中。