Throttle device for internal-combustion engine

    公开(公告)号:US20020129791A1

    公开(公告)日:2002-09-19

    申请号:US10141120

    申请日:2002-05-09

    申请人: Hitachi, Ltd.

    IPC分类号: F02D009/10

    摘要: Disclosed is a throttle device for an internal-combustion engine, in which, on one side of the side wall of a throttle body, there are formed a space for mounting a reduction gear mechanism which transmits the power from a motor to a throttle valve shaft and a default opening setting mechanism for holding a throttle valve opening at a specific opening (default opening) when the ignition switch is in off position, and a gear cover mounting frame which edges the mounting space. The frame is formed lower than the mounting level of the reduction gear mechanism. A gear cover for covering the gear mounting space is attached on the frame. A stopper for defining the default opening and a stopper for defining the full-closed position of the throttle valve are juxtaposed so as to enable position adjustments in the same direction. These stoppers serve to stop a default lever and a throttle gear, thereby enabling downsizing, weight reduction, and rationalization of fabrication and adjustments of an electronically controlled throttle device.

    Air intake device for an internal combustion engine

    公开(公告)号:US20020023620A1

    公开(公告)日:2002-02-28

    申请号:US09898444

    申请日:2001-07-05

    发明人: Holger Paffrath

    IPC分类号: F02D009/10 F02B005/00

    CPC分类号: F02D9/1095 F02D2009/0279

    摘要: An air intake device for an internal combustion engine with at least two intake pipes, wherein each intake pipe can be closed by at least one throttle valve and wherein the throttle valves are connected to one another. The throttle valves are soft in at least one area in such a way that unevenness in the distribution of the supplied air is reduced.

    Throttle device for internal combustion engine
    4.
    发明申请
    Throttle device for internal combustion engine 失效
    内燃机节气门装置

    公开(公告)号:US20040187844A1

    公开(公告)日:2004-09-30

    申请号:US10806381

    申请日:2004-03-23

    申请人: DENSO CORPORATION

    IPC分类号: F02D009/10 F16K001/22

    摘要: A throttle device for an internal combustion engine designed to absorb variations in dimensions of components by centering a closed-bottom tube of an integral plug-type slide bearing with a plastic shaft part of a throttle shaft, inserting a tube of the slide bearing in a ring-shaped clearance formed between an inner circumference of a first shaft insertion hole of a first bearing support of a throttle body and outer circumference of a first sliding part of the plastic shaft, then fixing by welding a ring-shaped end face of a flange of the slide bearing to a ring-shaped end face of the first bearing support using a welding method such as laser welding.

    摘要翻译: 一种用于内燃机的节流装置,其设计成通过使具有节流轴的塑料轴部分的一体式插塞型滑动轴承的封闭底管对中来吸收部件的尺寸变化,将滑动轴承的管插入到 节气门体的第一轴承支撑件的第一轴插入孔的内周与塑料轴的第一滑动部的外周之间形成的环形间隙,然后通过焊接来固定凸缘的环形端面 的滑动轴承使用诸如激光焊接的焊接方法到第一轴承座的环形端面。

    Electric-control-type throttle apparatus

    公开(公告)号:US20030136377A1

    公开(公告)日:2003-07-24

    申请号:US10377728

    申请日:2003-03-04

    IPC分类号: F02D009/10 F02D011/10

    摘要: An electrically-controlled throttle valve apparatus includes a motor, a speed reducing mechanism for reducing rotation speed transmitted from the motor, a throttle valve connected to the speed reducing mechanism, and a force applying device applying force to the throttle valve in the direction of returning the valve to its initial position and adjusting the opening of the throttle valve by driving the motor. Parameters of the motor, the speed reducing mechanism, and the force applying device have values such that the operation time t from the minimum to the maximum throttle valve opening, which is determined by an evaluation equation obtained from equations of throttle valve motion, is less than a prescribed target throttle valve operation time t*. Furthermore, resistance and an induction voltage constant of the motor are determined to satisfy a constraint equation obtained based on Ohm's law.

    Throttle device for internal-combustion engine

    公开(公告)号:US20030066515A1

    公开(公告)日:2003-04-10

    申请号:US10298579

    申请日:2002-11-19

    申请人: Hitachi, Ltd.

    IPC分类号: F02D009/10

    摘要: Disclosed is a throttle device for an internal-combustion engine, in which, on one side of the side wall of a throttle body, there are formed a space for mounting a reduction gear mechanism which transmits the power from a motor to a throttle valve shaft and a default opening setting mechanism for holding a throttle valve opening at a specific opening (default opening) when the ignition switch is in off position, and a gear cover mounting frame which edges the mounting space. The frame is formed lower than the mounting level of the reduction gear mechanism. A gear cover for covering the gear mounting space is attached on the frame. A stopper for defining the default opening and a stopper for defining the full-closed position of the throttle valve are juxtaposed so as to enable position adjustments in the same direction. These stoppers serve to stop a default lever and a throttle gear, thereby enabling downsizing, weight reduction, and rationalization of fabrication and adjustments of an electronically controlled throttle device.

    Throttle assembly for internal combustion engine, and throttle sensor
    8.
    发明申请
    Throttle assembly for internal combustion engine, and throttle sensor 失效
    内燃机节气门总成,油门传感器

    公开(公告)号:US20040123838A1

    公开(公告)日:2004-07-01

    申请号:US10737993

    申请日:2003-12-18

    IPC分类号: F02D009/10

    摘要: In a throttle body there are provided a throttle valve for controlling the flow of intake air in an internal combustion engine, an electrically-driven actuator for actuating the throttle valve, and a reduction gear mechanism for the actuator, and a receptacle portion for receiving the reduction gear mechanism therein is formed in a side wall of the throttle body. A cover which covers the receptacle portion is attached to a side wall of the throttle body. The throttle assembly of the invention is provided with a potentiometer type sensor for detecting the degree of opening of the throttle valve, the sensor comprising a slider and a resistor, the slider being adapted to slide on the resistor and mounted to a peripheral surface of a driven gear so that a tip end thereof faces in a radial direction of a throttle valve shaft, the driven gear being disposed on the throttle valve shaft side of the reduction gear mechanism. On the other hand, the resistor is constituted by a curved resistor which confronts the slider in the said radial direction. A wall portion which holds the curved resistor is formed by molding integrally with the aforesaid cover.

    摘要翻译: 在节气门体中设置有用于控制内燃机中的进气的流量的节流阀,用于致动节流阀的电动致动器和用于致动器的减速齿轮机构,以及用于接收 减速齿轮机构形成在节气门体的侧壁上。 覆盖容器部分的盖子附接到节气门体的侧壁。 本发明的节气门组件设置有用于检测节流阀的开度的电位计型传感器,该传感器包括一个滑动器和一个电阻器,该滑块适于在电阻器上滑动并安装在一个外壳表面上 从而使其末端面向节流阀轴的径向,从动齿轮设置在减速齿轮机构的节流阀轴侧。 另一方面,电阻器由在所述径向方向上面对滑块的弯曲电阻器构成。 保持弯曲电阻器的壁部通过与上述盖一体成型而形成。

    Intake device for an internal combustion engine
    9.
    发明申请
    Intake device for an internal combustion engine 失效
    内燃机进气装置

    公开(公告)号:US20040123835A1

    公开(公告)日:2004-07-01

    申请号:US10681378

    申请日:2003-10-09

    IPC分类号: F02D009/10

    摘要: An intake device for an internal combustion engine includes a throttle body (1) that forms an intake passage (1a). A throttle valve (2) is arranged within the intake passage. A pipe member (26) is connected to the throttle body, wherein the pipe member forms a communication passage (26a) communicating with the intake passage. An engagement device (53,63; 85,87; 92,63) is provided between the throttle body and the pipe member. The engagement device includes at least one engagement protrusion (53; 85; 92) and at least one engagement recess (63; 87M). When the engagement protrusion and the engagement recess are engaged with each other, detachment of the throttle body and the pipe member from each other is restricted. The assembly process is simplified by a lack of separate components such as clamps and bolts, relying instead upon a typical snap-fit connection.

    摘要翻译: 用于内燃机的进气装置包括形成进气通道(1a)的节流阀体(1)。 节流阀(2)布置在进气通道内。 管件(26)连接到节气门体,其中管件形成与进气通道连通的连通通道(26a)。 在节气门体和管构件之间设置有接合装置(53,63; 85,87; 92,63)。 接合装置包括至少一个接合突起(53; 85; 92)和至少一个接合凹部(63; 87M)。 当接合突起和接合凹槽彼此接合时,节流阀体和管构件彼此分离被限制。 组装过程由于缺乏诸如夹具和螺栓的单独部件而简化,而是依赖于典型的卡扣配合连接。

    Method and arrangement for controlling an accelerator pedal in an internal combustion engine
    10.
    发明申请
    Method and arrangement for controlling an accelerator pedal in an internal combustion engine 失效
    用于控制内燃机中的加速器踏板的方法和装置

    公开(公告)号:US20030172906A1

    公开(公告)日:2003-09-18

    申请号:US10385526

    申请日:2003-03-12

    发明人: Mario Kustosch

    IPC分类号: F02D041/00 F02D009/10

    CPC分类号: B60K26/021 F02D11/105

    摘要: A method and an arrangement for controlling an accelerator pedal (1) provide a signal to the driver of a vehicle having an internal combustion engine the entry into an uneconomical driving pattern via the accelerator pedal. A reset force (FPED) is applied to the accelerator pedal (1). A desired value (FPEDSOLL) for the reset force is increased in dependence upon a drop below a pregiven value for a degree of efficiency of the engine.

    摘要翻译: 用于控制加速器踏板(1)的方法和装置向具有内燃机的车辆的驾驶员提供信号,通过加速器踏板进入不经济的驾驶模式。 复位力(FPED)被施加到加速踏板(1)。 复位力的期望值(FPEDSOLL)在发动机的效率的程度上依赖于低于预定值的下降而增加。