公开(公告)号：US6032647A

公开(公告)日：2000-03-07

申请号：US178479

申请日：1998-10-26

申请人： Hisaaki Sato ,  Masato Kumagai ,  Tomoaki Araki

发明人： Hisaaki Sato ,  Masato Kumagai ,  Tomoaki Araki

IPC分类号： F02B67/04 ,  F02D9/02 ,  F02D9/10 ,  F02D11/10

CPC分类号： F02D9/1065 ,  F02D9/02 ,  F02D2009/0261 ,  F05C2201/021

摘要： For controlling a throttle valve of an internal combustion engine, there is provided a control valve control device. The device includes a throttle body; a pivot shaft rotatably held by the throttle body and extending across a throttle chamber of the throttle body, the throttle valve being secured to the throttle shaft to pivot therewith; an electric actuator mounted to the throttle body to produce a power to drive the pivot shaft; and a reduction gear mechanism arranged between the electric actuator and the pivot shaft to reduce a speed of an actuation motion applied to the pivot shaft from the actuator. The throttle valve control device further includes a cam lever constituting a part of the reduction gear mechanism, the cam lever being secured to the pivot shaft to pivot therewith and having a cam surface; a cam follower structure pivotally connected to the throttle body and constantly contacting the cam surface to be pivoted; a spring for biasing the cam follower structure in a direction to press a part of the cam follower structure against the cam surface; and a close position adjuster mounted on the cam lever to adjust the close position of the throttle valve. When the cam lever is pivoted in a direction to close the throttle valve, the close position adjuster is brought into abutment with the part of the cam follower structure thereby to stop further pivoting of the cam lever.

摘要翻译： 为了控制内燃机的节气门，设置有控制阀控制装置。 该装置包括节气门体; 枢轴，其由所述节气门体可旋转地保持并且延伸穿过所述节气门体的节流室，所述节流阀固定到所述节流轴以与其枢转; 安装在所述节气门体上以产生驱动所述枢轴的动力的电致动器; 以及设置在电致动器和枢转轴之间的减速齿轮机构，以减小从致动器施加到枢转轴的致动运动的速度。 节流阀控制装置还包括构成减速齿轮机构的一部分的凸轮杆，凸轮杆固定在枢轴上以与其枢转并具有凸轮表面; 枢转地连接到节气门体并且恒定地接触要被枢转的凸轮表面的凸轮从动件结构; 弹簧，用于使所述凸轮从动件结构朝向所述凸轮从动结构的一部分压靠所述凸轮表面的方向偏压; 以及安装在凸轮杆上的关闭位置调节器，以调节节流阀的关闭位置。 当凸轮杆沿关闭节流阀的方向枢转时，关闭位置调节器与凸轮从动件结构的一部分抵接，从而停止凸轮杆的进一步枢转。

公开(公告)号：US06332451B1

公开(公告)日：2001-12-25

申请号：US09593304

申请日：2000-06-13

申请人： Hisaaki Sato ,  Masato Kumagai ,  Tomoaki Araki ,  Keiichi Kai

发明人： Hisaaki Sato ,  Masato Kumagai ,  Tomoaki Araki ,  Keiichi Kai

IPC分类号： F02D902

CPC分类号： F16K31/041 ,  F05C2201/021 ,  F16K1/221

摘要： A rotary valve actuator arrangement including a rotary valve and an electromagnetic actuator actuating the rotary valve. The rotary valve includes a valve shaft rotatable about an axis and a valve body disposed on the valve shaft for unitary rotation therewith. The electromagnetic actuator includes two stator cores, two coils wound on the stator cores, and a rotor rotatable about the axis and including two projecting portions opposed to the stator cores. Mutually opposed surfaces of the stator cores and the projecting portions define a continuously variable area forming a magnetic path when the coil is energized.

摘要翻译： 一种旋转阀致动器装置，包括旋转阀和致动旋转阀的电磁致动器。 旋转阀包括可围绕轴线旋转的阀轴和设置在阀轴上以与其一体旋转的阀体。 电磁致动器包括两个定子芯，缠绕在定子芯上的两个线圈和可围绕轴线旋转的转子，并且包括与定子芯相对的两个突出部分。 当线圈通电时，定子铁心和突出部分相互相对的表面限定形成磁路的连续可变区域。

公开(公告)号：US6039027A

公开(公告)日：2000-03-21

申请号：US200979

申请日：1998-11-30

申请人： Hisaaki Sato ,  Masato Kumagai ,  Tomoaki Araki

发明人： Hisaaki Sato ,  Masato Kumagai ,  Tomoaki Araki

IPC分类号： F02D9/10 ,  F02D11/10

CPC分类号： F02D9/1065 ,  F05C2201/021

摘要： A throttle valve device for an internal combustion engine of an automotive vehicle. The throttle valve device comprises a throttle body having a part of an intake air passageway. A throttle valve is fixedly mounted on a valve shaft and rotatably disposed in the part of the intake air passageway. A driving device is disposed to the throttle body to drive the throttle valve through the valve shaft. A reduction gear mechanism through which the driving device and the valve shaft are mechanically connected is provided to transmit a driving force of the driving device to the valve shaft in a manner to accomplish a speed-reduction for a rotational movement of the driving device to be transmitted to the valve shaft. A cam follower is rotatably disposed to the throttle body. A single biasing device is provided to always bias the cam follower onto the cam surface of the cam lever. Additionally, a cam lever is incorporated with a gear of the reduction gear mechanism to rotate together with the gear as a one-piece member. The cam lever has an opening whose periphery serves as a cam surface on which the cam follower is in press contact under a biasing force of the biasing device. The cam surface is configured to allow the throttle valve to rotate from a fully closed position to a fully opened position. The cam surface has a bent section which causes the throttle valve to take a partly opened position when the driving force of the driving device is released. The partly opened position is between the fully closed and fully opened positions.

摘要翻译： 一种用于机动车辆的内燃机的节气门装置。 节气门装置包括具有进气通道的一部分的节气门体。 节流阀固定地安装在阀轴上并可旋转地设置在进气通道的一部分中。 驱动装置设置在节气门体上以通过阀轴驱动节流阀。 提供驱动装置和阀轴机械连接的减速机构，以将驱动装置的驱动力传递到阀轴，以实现驱动装置的旋转运动的速度降低 传递到阀轴。 凸轮从动件可旋转地设置在节气门体上。 提供单个偏置装置以始终将凸轮从动件偏置到凸轮杆的凸轮表面上。 此外，凸轮杆与减速齿轮机构的齿轮并入，与齿轮一起作为一体式构件旋转。 凸轮杆具有开口，其周边用作凸轮表面，凸轮从动件在偏置装置的偏压力下与其接触。 凸轮表面构造成允许节流阀从完全关闭位置旋转到完全打开位置。 凸轮表面具有弯曲部分，当驱动装置的驱动力被释放时，该弯曲部分使得节流阀处于部分打开位置。 部分打开位置在完全关闭位置和完全打开位置之间。