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    • 26. 发明申请
    • Internal Combustion Engine and Method and Device for Operating an Internal Combustion Engine
    • 内燃机及内燃机运行方法及装置
    • US20100179746A1
    • 2010-07-15
    • US12667638
    • 2008-06-04
    • Gianluca CarettaManfred Weigl
    • Gianluca CarettaManfred Weigl
    • F02D41/00
    • F02D41/0072F02D41/008F02D2200/0414F02M26/49Y02T10/47
    • An internal combustion engine includes at least two cylinders, an intake duct, an exhaust gas section and an exhaust gas recirculation line. The cylinders include a combustion chamber. The intake duct communicates with the combustion chambers via a cylinder inlet channel of the intake duct depending upon a switch position of a gas inlet valve. The exhaust gas section communicates with the combustion chambers depending upon a switch position of at least one gas outlet valve. Exhaust gas is guided back to the inlet channels via the exhaust gas recirculation line dependent upon a switch position of the exhaust gas recirculation valve. To detect a mixing air temperature in the inlet channels, a mixing air temperature sensor is provided. The determined mixing air temperatures are compared. Exhaust gas guided back due to uneven distribution is identified if a difference between the determined mixing air temperature is greater than a predetermined threshold value.
    • 内燃机包括至少两个气缸,进气管,排气段和排气再循环管线。 气缸包括燃烧室。 进气管通过进气管的气缸入口通道与燃烧室连通,取决于进气阀的开关位置。 废气部分根据至少一个气体出口阀的开关位置与燃烧室连通。 取决于废气再循环阀的开关位置,废气通过废气再循环管线被引导回入口通道。 为了检测入口通道中的混合空气温度,提供了混合空气温度传感器。 比较确定的混合空气温度。 如果确定的混合空气温度之间的差异大于预定阈值,则识别由于不均匀分布导致的排气废气。
    • 27. 发明申请
    • Method and Device for Controlling an Injector
    • 用于控制注射器的方法和装置
    • US20070250248A1
    • 2007-10-25
    • US11722238
    • 2005-12-02
    • Joachim FrankHellmut FreudenbergManfred Weigl
    • Joachim FrankHellmut FreudenbergManfred Weigl
    • F02D28/00
    • F02M47/027F02D41/2096F02D41/22F02D41/247F02D2041/223F02M63/0026F02M63/0225
    • An injector has a valve pin whose position is adjustable according to the pressure prevailing in a control chamber and which blocks a fluid flow through at least one injection port in a closed position. The injector has a control chamber that is hydraulically coupled to a high-pressure fluid reservoir, a piezo actuator, and a control valve which hydraulically connects and disconnects the control chamber, the piezo actuator acting upon said control valve. A combination of a triggering period for the piezo actuator and electric power that is to be fed to the piezo actuator is varied from a predefined initial combination to a target combination in which a pressure curve is detected that is characteristic of a movement of the control valve out of the closed position thereof without fluid being proportioned through the injection port.
    • 注射器具有阀销,其位置可根据控制室中的压力而调节,并且阻止流体流过处于关闭位置的至少一个注射口。 喷射器具有液压耦合到高压流体储存器,压电致动器和控制阀的控制室,所述控制室液压地连接和断开控制室,所述控制室作用在所述控制阀上。 用于压电致动器的触发周期和将被馈送到压电致动器的电力的组合从预定义的初始组合到目标组合的变化,其中检测到压力曲线,该压力曲线是控制阀的运动的特征 在没有流体通过注射口成比例的关闭位置之外。