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1. 发明授权

US5638797A Turbulence generating apparatus in the intake manifold 失效
标题翻译：湍流发生装置在进气歧管中
公开(公告)号：US5638797A
公开(公告)日：1997-06-17
申请号：US689120
申请日：1996-07-30
申请人： Yun-Tac Kim
发明人： Yun-Tac Kim
IPC分类号： F02B31/00 , F02M29/02
CPC分类号： F02M29/02
摘要： An apparatus for generating turbulence in the intake manifold of an engine in a motor vehicle, the apparatus comprising a reversable step motor having a drive shaft and a drive gear fixed thereto; an elongated shaft being disposed for slidable movement along its axis and having one end disposed in the intake manifold and the other end extending outside the intake manifold, the other end of the shaft including a rack gear drivingly engaged by the drive gear; an anchor fixed in the intake manifold and supporting the shaft for axial movement; a plurality of fan blades mounted at the one end of the shaft for rotation about the shaft axis, each blade being pivotally mounted for movement between folded and unfolded positions in response to axial movement of the shaft; and a control unit for electrically operating the step motor in response to engine rotation rate or vehicle speed to cause the blades to unfold into the intake air stream when the rate or speed is below a predetermined value and to fold when the rate or speed is above a predetermined value.
摘要翻译：一种用于在机动车辆中的发动机的进气歧管中产生湍流的装置，该装置包括可逆步进电机，其具有固定到其上的驱动轴和驱动齿轮; 细长轴被设置成沿其轴线可滑动运动，并且一端设置在进气歧管中，另一端延伸到进气歧管外侧，轴的另一端包括由驱动齿轮驱动啮合的齿条; 锚固件，其固定在进气歧管中并支撑轴以进行轴向移动; 安装在所述轴的一端以围绕所述轴线旋转的多个风扇叶片，每个叶片可枢转地安装以响应于所述轴的轴向运动而在折叠位置和展开位置之间移动; 以及控制单元，用于响应于发动机转速或车辆速度电动操作步进电动机，以在速率或速度低于预定值时使叶片展开到进气流中，并且当速率或速度高于预定值。

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