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    • 1. 发明授权
    • Multiple nozzle ejector for wastegated turbomachinery
    • 用于废水涡轮机的多喷嘴喷射器
    • US06202413B1
    • 2001-03-20
    • US09244048
    • 1999-02-04
    • Glenn L. BakerGregory H. HendersonP. Douglas Free
    • Glenn L. BakerGregory H. HendersonP. Douglas Free
    • F02D2300
    • F02C3/32F01N5/04F02B37/025F02B37/18F05D2220/40F05D2260/601Y02T10/144Y02T10/16
    • An improved wastegated turbocharger including ejector nozzles such that the bypassed exhaust flow re-enters the main exhaust flow at a predetermined pitch angle and yaw angle so as to create a drop in turbine back pressure. The exhaust gas turbocharger includes a turbine housing having a turbine chamber, an exhaust housing portion, and an exhaust gas inlet to said turbine chamber wherein a turbine wheel is rotatably mounted in the turbine chamber and is rotatably responsive to exhaust gas flow from the exhaust gas inlet. In one embodiment, an outlet insert is provided which is rigidly attached to the exhaust housing portion and extends toward the turbine chamber thereby defining a bypass chamber and providing an exhaust gas outlet. A bypass flow passage which fluidly connects the exhaust gas inlet with the bypass chamber is also provided. The outlet insert includes a plurality of ejector nozzles for directing exhaust flow from the bypass chamber to the exhaust gas outlet. In another embodiment, an ejector nozzle ring with plurality of ejector nozzles is positioned between the turbine chamber and the outlet insert.
    • 一种改进的废气涡轮增压器,包括喷射器喷嘴,使得旁路废气流以预定的俯仰角和偏航角度重新进入主排气流,以便产生涡轮机背压的下降。 排气涡轮增压器包括涡轮壳体,其具有涡轮室,排气容纳部分和到所述涡轮室的排气入口,其中涡轮机叶轮可旋转地安装在涡轮机室中并且可旋转地响应于来自废气的废气流 进口。 在一个实施例中,提供出口插入件,其刚性地附接到排气容纳部分并且朝向涡轮室延伸,从而限定旁路室并提供废气出口。 还提供了将废气入口与旁路室流体连接的旁通流路。 出口插入件包括多个喷射器喷嘴,用于将排气流从旁路室引导到废气出口。 在另一个实施例中,具有多个喷射器喷嘴的喷射器喷嘴环位于涡轮室和出口插入件之间。
    • 3. 发明授权
    • Early exhaust valve opening control system and method
    • 早期排气门开启控制系统及方法
    • US5937807A
    • 1999-08-17
    • US050033
    • 1998-03-30
    • Lester L. PetersDavid A. VittorioP. Douglas FreeAmarjit S. GhumanHarold G. WeberCanden R. Nelson
    • Lester L. PetersDavid A. VittorioP. Douglas FreeAmarjit S. GhumanHarold G. WeberCanden R. Nelson
    • F01L13/00
    • F01L13/0031F01L1/181F01L1/26F01L13/06
    • An exhaust valve system for an internal combustion engine including a turbocharger is provided for effectively increasing the turbocharged boost pressure at low load engine conditions thereby effectively improving engine transient response. The exhaust valve system includes an exhaust valve control device operable in a normal timing mode for permitting normal opening of one or more exhaust valves at a normal opening crank angle, and in an advanced timing mode for advancing the timing of the opening of the exhaust valve to an advanced opening crank angle prior to the normal opening crank angle while maintaining the timing of normal closing of the exhaust valves at a normal closing crank angle. In one embodiment, the exhaust valve control device includes a tappet and an actuating fluid supply which operate to move the tappet between expanded and collapsed states to advance the opening of the exhaust valve while permitting normal exhaust valve lift to be introduced prior to peak exhaust valve lift thereby maintaining the normal peak lift and the normal timing of exhaust valve closure. In a second embodiment, the exhaust valve control device includes a dedicated advanced timing mode rocker lever capable of selectively actuating one of a pair of exhaust valves to create an early opening exhaust event prior to a normal exhaust event.
    • 提供一种用于包括涡轮增压器的内燃机的排气门系统,用于在低负载发动机条件下有效地增加涡轮增压增压压力,从而有效地改善发动机瞬态响应。 排气门系统包括排气门控制装置,该排气门控制装置可以在正常定时模式下操作,以允许一个或多个排气门以正常的开启曲柄角正常打开,并且在提前定时模式中,用于使排气门的打开时间延长 在正常的开启曲柄角之前达到先进的开启曲柄角,同时保持排气门在正常的关闭曲柄角处的正常关闭的正时。 在一个实施例中,排气门控制装置包括挺杆和致动流体供应器,其操作以在膨胀和收缩状态之间移动挺杆,以推进排气门的打开,同时允许在峰值排气阀之前引入正常的排气门升程 从而保持正常的峰值升程和排气门关闭的正常时间。 在第二实施例中,排气门控制装置包括专用的高级定时模式摇杆杆,其能够选择性地致动一对排气门中的一个,以在正常排气事件之前产生早期打开排气事件。