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    • 8. 发明公开
    • 매연 필터의 열화도 판단 방법
    • 用于确定颗粒过滤器热分解的方法
    • KR1020120006238A
    • 2012-01-18
    • KR1020100066864
    • 2010-07-12
    • 현대자동차주식회사기아자동차주식회사
    • 박원순
    • F01N11/00F01N9/00F01N3/023
    • Y02A50/2325Y02T10/47F01N11/00F01N9/002F01N2550/04F01N2610/146
    • PURPOSE: A method for diagnosis of deterioration of a particulate filter is provided to accurately measure deterioration of a particulate filter by spraying the fuel after regenerating the particulate filter. CONSTITUTION: A method for diagnosis of deterioration of a particulate filter coated with an oxidation catalyst is as follows. The deterioration of a particulate filter is diagnosed by calculating the heating efficiency because the fuel is sprayed after the particulate filter is completely regenerated(S220,S270,S230). A complete regeneration step of the particulate filter repetitively operates on a periodic basis. The fuel is sprayed when a set up time passes after the particulate filter is completely regenerated.
    • 目的:提供一种用于诊断微粒过滤器劣化的方法,以通过在再生颗粒过滤器之后喷射燃料来精确地测量颗粒过滤器的劣化。 构成:用氧化催化剂涂布的微粒过滤器的劣化的诊断方法如下。 通过计算加热效率来诊断微粒过滤器的劣化,因为在颗粒过滤器完全再生后喷射燃料(S220,S270,S230)。 颗粒过滤器的完全再生步骤周期性地重复操作。 在颗粒过滤器完全再生后,当设定时间过去时,喷射燃料。
    • 10. 发明公开
    • 배기가스 정화장치
    • 排气净化装置
    • KR1020100064924A
    • 2010-06-15
    • KR1020080123576
    • 2008-12-05
    • 현대자동차주식회사기아자동차주식회사
    • 박원순
    • F01N3/023F01N3/28
    • Y02A50/2322
    • PURPOSE: An exhaust gas purification device is provided to improve the regeneration efficiency of exhaust gas by raising the temperature of exhaust gas, which is discharged from a vehicle operating in a low temperature region, to about 350°C. CONSTITUTION: An exhaust gas purification device comprises a diesel oxidation catalyst, a filter catalyst, and a controller. The diesel oxidation catalyst reduces hydrocarbon and carbon monoxide and generates nitrogen dioxide using catalyst. The filter catalyst collects particulates at the rear side of the diesel oxidation catalyst and eliminates the collected particulates through reaction with nitrogen dioxide. The controller detects the temperature of exhaust gas and maintains exhaust gas at the set temperature in order to naturally regenerate and eliminate the collected particulates. The concentration of NOx and hydrocarbon in the exhaust gas is detected and kept in a set range so that the filter catalyst is naturally regenerated.
    • 目的:提供一种排气净化装置,通过将从低温区域运转的车辆排出的废气的温度升高到约350℃来提高排气的再生效率。 构成:废气净化装置包括柴油氧化催化剂,过滤器催化剂和控制器。 柴油氧化催化剂减少烃和一氧化碳,并使用催化剂产生二氧化氮。 过滤催化剂在柴油氧化催化剂的后侧收集颗粒,并通过与二氧化氮的反应消除收集的颗粒。 控制器检测废气的温度,并将废气维持在设定温度,以便自然地再生和消除所收集的颗粒物。 废气中的NOx和烃的浓度被检测并保持在设定范围内,使得过滤器催化剂自然地再生。