Control of engine intake system
    1.
    发明授权
    Control of engine intake system 失效
    发动机进气系统的控制

    公开(公告)号:US07444975B2

    公开(公告)日:2008-11-04

    申请号:US11674170

    申请日:2007-02-13

    IPC分类号: F02M35/10 F01L1/34

    摘要: A method of controlling an intake air passage of an internal combustion engine is provided. The intake air passage cyclically communicates to a combustion chamber of the internal combustion engine, thereby inducting fresh air into said combustion chamber. The cyclic communication of the intake air passage to the combustion chamber generates a pressure wave in the intake air passage. The method comprises reducing an effective length of a transmission path of the pressure wave in an upstream direction of the intake air passage as a desired air flow to the combustion chamber decreases. In accordance with the method, the effective length of the pressure wave transmission path is reduced as desired air flow decreases. With the reduced effective length, the pressure wave bounces back and forth between ends of the transmission path more often before the next cyclic communication. The more bouncing attenuates the pressure wave at the next cyclic communication. Therefore, the cylinder air charge can be stabilized when the desired air flow is decreased.

    摘要翻译: 提供了一种控制内燃机的进气通道的方法。 进气通道与内燃机的燃烧室循环地连通,从而将新鲜空气引入到所述燃烧室中。 进气通道与燃烧室的循环连通在进气通道中产生压力波。 该方法包括当到达燃烧室的期望空气流量减小时,减小进气通道的上游方向上的压力波的传输路径的有效长度。 根据该方法,随着气流的减少,压力波传输路径的有效长度减小。 随着减小的有效长度,压力波在下一个循环通信之前更频繁地在传输路径的端部之间来回弹起。 在下一次循环通信时,弹跳越多,衰减压力波。 因此,当期望的空气流量减小时,气缸空气充量可以被稳定。

    CONTROL OF ENGINE INTAKE SYSTEM
    2.
    发明申请
    CONTROL OF ENGINE INTAKE SYSTEM 失效
    发动机进气系统控制

    公开(公告)号:US20070186892A1

    公开(公告)日:2007-08-16

    申请号:US11674170

    申请日:2007-02-13

    IPC分类号: F02M35/10 F01L1/34

    摘要: A method of controlling an intake air passage of an internal combustion engine is provided. The intake air passage cyclically communicates to a combustion chamber of the internal combustion engine, thereby inducting fresh air into said combustion chamber. The cyclic communication of the intake air passage to the combustion chamber generates a pressure wave in the intake air passage. The method comprises reducing an effective length of a transmission path of the pressure wave in an upstream direction of the intake air passage as a desired air flow to the combustion chamber decreases. In accordance with the method, the effective length of the pressure wave transmission path is reduced as desired air flow decreases. With the reduced effective length, the pressure wave bounces back and forth between ends of the transmission path more often before the next cyclic communication. The more bouncing attenuates the pressure wave at the next cyclic communication. Therefore, the cylinder air charge can be stabilized when the desired air flow is decreased.

    摘要翻译: 提供了一种控制内燃机的进气通道的方法。 进气通道与内燃机的燃烧室循环地连通,从而将新鲜空气引入到所述燃烧室中。 进气通道与燃烧室的循环连通在进气通道中产生压力波。 该方法包括当到达燃烧室的期望空气流量减小时,减小进气通道的上游方向上的压力波的传输路径的有效长度。 根据该方法,随着气流的减少,压力波传输路径的有效长度减小。 随着减小的有效长度,压力波在下一个循环通信之前更频繁地在传输路径的端部之间来回弹起。 在下一次循环通信时,弹跳越多,衰减压力波。 因此,当期望的空气流量减小时,气缸空气充量可以被稳定。

    Engine
    3.
    发明授权
    Engine 有权
    发动机

    公开(公告)号:US09097170B2

    公开(公告)日:2015-08-04

    申请号:US13421068

    申请日:2012-03-15

    摘要: An exhaust manifold is covered by a manifold heat shield cover and an exhaust pipe is directed downward from the exhaust manifold. In such an engine, a cooling fan is disposed on a front portion of the engine and the exhaust pipe is positioned on the air flow path of the cooling fan. An auxiliary component heat shielding plate is directed from the manifold heat shield cover along a back side of the exhaust pipe. An auxiliary engine component is disposed beneath the manifold heat shield cover on a back side of the auxiliary component heat shielding plate. Between the exhaust pipe and a cylinder block, an air flow guide plate provides an air flow space between the air flow guide plate and the cylinder block. A cooling air flow passing through the air flow space is thus supplied to the auxiliary engine component.

    摘要翻译: 排气歧管被歧管隔热罩覆盖,排气管从排气歧管向下指向。 在这样的发动机中,在发动机的前部配置有冷却风扇,排气管位于冷却风扇的风路上。 辅助部件热屏蔽板沿着排气管的后侧从歧管隔热罩引导。 辅助发动机部件设置在辅助部件隔热板的后侧上的歧管隔热罩下方。 在排气管和气缸体之间,气流引导板在气流引导板和气缸体之间提供空气流动空间。 因此,通过空气流动空间的冷却空气流被提供给辅助发动机部件。