Reducing exhaust emissions from otto-cycle engines
    161.
    发明授权
    Reducing exhaust emissions from otto-cycle engines 失效
    减少ototo循环发动机废气排放

    公开(公告)号:US5511517A

    公开(公告)日:1996-04-30

    申请号:US195857

    申请日:1994-02-10

    Abstract: The amount of nitrogen oxide (NOx) and hydrocarbon emissions emanating via the exhaust during operation of a gasoline engine is reduced by dispensing to a gasoline engine adjusted to operate primarily at an air-to-fuel ratio between lambda of about 0.9 to about 1.15, a gasoline that contains a minor amount of (i) a cyclopentadienyl manganese tricarbonyl compound and (ii) an alkyllead anti-knock agent. Components (i) and (ii) are proportioned such that there is dissolved in the fuel a substantially equal weight of manganese as (i) and lead as (ii), and the amount of (i) and (ii) used in the fuel is an amount that reduces the amount of NOx and hydrocarbons in the engine exhaust on combustion of the fuel with an air-to-fuel ratio between lambda of about 0.9 to about 1.15. Lambda is the actual air-to-fuel ratio divided by the stoichiometric air-to-fuel ratio. The stoichiometric air-to-fuel ratio is a lambda value of one.

    Abstract translation: 在汽油发动机操作期间通过排气发出的氮氧化物(NOx)和碳氢化合物排放量的量通过分配到调节为主要以空气与燃料比在约0.9至约1.15之间的空气燃料比的汽油发动机而减少, 含有少量(i)环戊二烯基三羰基锰化合物的汽油和(ii)烷基铅抗爆剂。 组分(i)和(ii)成比例,使得在燃料中溶解基本相等重量的锰,如(i)和铅作为(ii),并且燃料中使用的(i)和(ii)的量 是在空气与燃料比在约0.9至约1.15之间的燃料燃烧时减少发动机排气中的NOx和碳氢化合物的量的量。 Lambda是实际的空燃比除以化学计量空气 - 燃料比。 化学计量的空气 - 燃料比是λ值为1。

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