HYDROCARBON RETAINING AND PURGING SYSTEM
    43.
    发明申请
    HYDROCARBON RETAINING AND PURGING SYSTEM 有权
    油气保存和净化系统

    公开(公告)号:US20100223921A1

    公开(公告)日:2010-09-09

    申请号:US12396782

    申请日:2009-03-03

    IPC分类号: F01N3/021

    摘要: Methods and systems are provided for operating an engine having a hydrocarbon retaining system and an emission control device coupled to an engine exhaust, the engine exhaust comprising a venturi. One example method comprises, during a storing condition, routing exhaust gas through the venturi without generating a venturi action, and then to the hydrocarbon retaining system, while bypassing the emission control device, to store hydrocarbons in the hydrocarbon retaining system, and during a purging condition, routing exhaust gas through the venturi while generating venturi action, then to the emission control device, and then to the hydrocarbon retaining system, to purge stored hydrocarbons, wherein a flow of purged hydrocarbons is drawn back to the venturi via venturi action.

    摘要翻译: 提供了用于操作具有碳氢化合物保持系统的发动机和耦合到发动机排气的排放控制装置的方法和系统,所述发动机排气包括文氏管。 一个示例性方法包括在储存条件期间,通过文丘里管排出废气而不产生文丘里管作用,然后在绕过排放控制装置的同时,将碳氢化合物储存在碳氢化合物保留系统中并在清洗期间 条件是,通过文丘里管排出废气,同时产生文氏管作用,然后排放到排放控制装置,然后到烃保留系统,以清除储存的碳氢化合物,其中通过文丘里作用将清除的烃流引导回文丘里管。

    METHODS FOR REDUCING ENGINE EXHAUST EMISSIONS
    44.
    发明申请
    METHODS FOR REDUCING ENGINE EXHAUST EMISSIONS 有权
    减少发动机排气的方法

    公开(公告)号:US20100050605A1

    公开(公告)日:2010-03-04

    申请号:US12201564

    申请日:2008-08-29

    IPC分类号: F01N9/00

    CPC分类号: F01N9/00 Y02T10/22 Y02T10/47

    摘要: A method for controlling an internal combustion engine wherein, during an initial, relatively low temperature operating phase of the engine, the engine operates with a modulated air/fuel ratio established independently of the operating condition of the engine and wherein, during a subsequent higher temperature operating phase of the engine, the air/fuel ratio is modulated in as a function of the operating conditions of the engine.

    摘要翻译: 一种用于控制内燃机的方法,其中,在所述发动机的初始相对较低的温度运行阶段期间,所述发动机以独立于所述发动机的运行状态而建立的调制空气/燃料比工作,并且其中,在随后的较高温度 发动机的工作阶段,空燃比根据发动机的运行条件进行调制。

    HYDROCARBON RETAINING AND PURGING SYSTEM
    45.
    发明申请
    HYDROCARBON RETAINING AND PURGING SYSTEM 有权
    油气保存和净化系统

    公开(公告)号:US20100024396A1

    公开(公告)日:2010-02-04

    申请号:US12182777

    申请日:2008-07-30

    IPC分类号: F01N3/023 F01N3/30 F01N3/031

    摘要: Method and systems are provided for operating an engine having a hydrocarbon retaining system coupled to an engine exhaust and an engine intake. One example method comprises, during an engine cold start, routing exhaust gas to the hydrocarbon retaining system to store hydrocarbons in the hydrocarbon retaining system. The method further comprises, during a first purging condition where the exhaust gas is at a first temperature, purging the hydrocarbon retaining system with at least exhaust gas, and during a second purging condition where the exhaust gas is at a second temperature, said second temperature being higher than said first temperature, mixing the exhaust gas with an amount of fresh air to form a purging gas mixture, and purging the hydrocarbon retaining system with said purging gas mixture.

    摘要翻译: 提供了用于操作具有耦合到发动机排气和发动机进气口的烃保持系统的发动机的方法和系统。 一个示例性方法包括在发动机冷启动期间将排气排放到烃保持系统以将碳氢化合物储存在烃保持系统中。 该方法还包括在排气处于第一温度的第一净化条件下,至少排出气体来清除烃保留系统,并且在废气处于第二温度的第二吹扫条件期间,所述第二温度 高于所述第一温度,将废气与一定量的新鲜空气混合以形成净化气体混合物,并用所述吹扫气体混合物吹扫所述烃保留系统。

    Controlled Air-Fuel Ratio Modulation Air Fuel Sensor Input
    47.
    发明申请
    Controlled Air-Fuel Ratio Modulation Air Fuel Sensor Input 有权
    控制空燃比调制空气燃料传感器输入

    公开(公告)号:US20090107113A1

    公开(公告)日:2009-04-30

    申请号:US11926382

    申请日:2007-10-29

    IPC分类号: F01N3/00

    摘要: A method is described for operating an engine and an emission control system downstream of the engine, the emission control system including a catalyst, an exhaust gas path coupling the engine to the catalyst, a first air-fuel ratio sensor positioned upstream of the catalyst and a second air-fuel ratio sensor positioned adjacent to or downstream of the catalyst. The method includes correlating variation in the catalyst performance across air-fuel ratios, as identified via the first and second sensors, to fuel composition of fuel combusted in the engine.

    摘要翻译: 描述了一种用于在发动机下游操作发动机和排放控制系统的方法,排放控制系统包括催化剂,将发动机耦合到催化剂的排气路径,位于催化剂上游的第一空燃比传感器,以及 位于催化剂附近或下游的第二空燃比传感器。 该方法包括将通过第一和第二传感器识别的空气 - 燃料比的催化剂性能的变化与在发动机中燃烧的燃料的燃料组成相关联。

    Engine System Including Heat Pipe
    49.
    发明申请
    Engine System Including Heat Pipe 有权
    发动机系统包括热管

    公开(公告)号:US20080141664A1

    公开(公告)日:2008-06-19

    申请号:US11612369

    申请日:2006-12-18

    IPC分类号: F01N3/02

    摘要: An engine system for a vehicle, comprising of an engine producing exhaust gases; an exhaust passage for transporting the exhaust gases to a surrounding environment; a first heat pipe having a first end in thermal contact with the exhaust passage and a second end in thermal contact with a first fluid of the engine system; a second heat pipe having a first end in thermal contact with the exhaust passage and a second end in thermal contact with a second fluid of the engine system; and wherein the first heat pipe is configured to provide increased heat transfer between the exhaust passage and the first fluid during at least a first temperature condition and the second heat pipe is configured to provide increased heat transfer between the second fluid and the exhaust passage during at least a second temperature condition different than the first temperature condition.

    摘要翻译: 一种用于车辆的发动机系统,包括产生废气的发动机; 用于将废气输送到周围环境的排气通道; 第一热管,其具有与排气通道热接触的第一端和与发动机系统的第一流体热接触的第二端; 第二热管,其具有与排气通道热接触的第一端和与发动机系统的第二流体热接触的第二端; 并且其中所述第一热管被配置为在至少第一温度条件期间在所述排气通道和所述第一流体之间提供增加的热传递,并且所述第二热管构造成在所述第二热管期间在所述第二流体和所述第二流体之间在第二流体和所述排气通道之间提供增加的热传递 至少第二温度条件不同于第一温度条件。