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    Engine noise control apparatus
    2.
    发明授权
    Engine noise control apparatus 失效
    发动机噪声控制装置

    公开(公告)号：US5692052A

    公开(公告)日：1997-11-25

    申请号：US235935

    申请日：1994-05-02

    申请人： Katsuyuki Tanaka ,  Yoshitaka Nishio ,  Tokio Kohama ,  Satoshi Kameyama ,  Kouzi Ohara ,  Masanori Kato

    发明人： Katsuyuki Tanaka ,  Yoshitaka Nishio ,  Tokio Kohama ,  Satoshi Kameyama ,  Kouzi Ohara ,  Masanori Kato

    IPC分类号： F01N1/06 ,  G10K11/178 ,  A61F11/06 ,  H03B29/00

    CPC分类号： G10K11/1788 ,  F01N1/065 ,  G10K2210/107 ,  G10K2210/1282 ,  G10K2210/3027 ,  G10K2210/3033

    摘要： An engine rotating speed sensor detects intake sound information due to the drive of an engine. A controller generates a signal having a frequency corresponding to a desired ratio of orders based on the detected intake sound information. Further, a phase and an amplitude the signal are controlled, and so a speaker arranged in a propagation path of the intake sound of the engine generates control sound to control the intake sound due to the drive of the engine. An engine noise control apparatus which is capable of effectively reducing or waveform-reshaping a wide range of engine noise. The apparatus has an engine rotating speed sensor for detecting an engine rotating speed and a waveform generator circuit for converting a rotation pulse signal to a periodic signal having a frequency which is a predetermined multiple of the detected engine rotating speed. The output of an air flow meter is passed through a bandpass filter and a reshaping circuit to generate a control signal which is an average value of alternating current components of the output. A CPU, with reference to a map previously stored in a memory, modifies the phase and amplitude of the periodic signal with respect to an engine rotation reference signal based on the rotation pulse signal and the control signal, and outputs the modified signal as driving signals to operate speakers disposed in an intake tube and an exhaust tube for reducing noise.

    摘要翻译： 发动机转速传感器检测由于发动机的驱动引起的进气声音信息。 控制器基于检测到的进气声音信息产生具有与期望的订单比率对应的频率的信号。 此外，控制信号的相位和幅度，因此布置在发动机的进气声音的传播路径中的扬声器产生控制声音，以控制由于发动机的驱动引起的进气声音。 一种发动机噪声控制装置，其能够有效地减小或波形重新形成大范围的发动机噪声。 该装置具有用于检测发动机转速的发动机转速传感器和用于将旋转脉冲信号转换为具有检测到的发动机转速的预定倍数的频率的周期信号的波形发生器电路。 空气流量计的输出通过带通滤波器和整形电路以产生作为输出的交流分量的平均值的控制信号。 CPU参考先前存储在存储器中的映射，基于旋转脉冲信号和控制信号来修改相对于发动机旋转参考信号的周期信号的相位和振幅，并将修改的信号作为驱动信号输出 以操作设置在进气管中的扬声器和用于降低噪音的排气管。

    Apparatus for preventing flow noise in throttle valve
    3.
    发明授权
    Apparatus for preventing flow noise in throttle valve 失效
    节流阀防止流动噪音的装置

    公开(公告)号：US5970963A

    公开(公告)日：1999-10-26

    申请号：US34363

    申请日：1998-03-04

    申请人： Yoshihiro Nakase ,  Kouzi Ohara ,  Tokio Kohama ,  Kenji Kanehara ,  Kenichi Yamamoto ,  Yoshihiro Miyaji

    发明人： Yoshihiro Nakase ,  Kouzi Ohara ,  Tokio Kohama ,  Kenji Kanehara ,  Kenichi Yamamoto ,  Yoshihiro Miyaji

    IPC分类号： F02M35/12 ,  F02M29/04

    CPC分类号： F02M35/1211 ,  F02D9/104 ,  F02M35/1216

    摘要： An apparatus for preventing flow noise which suppresses the noise caused at the time of opening of a throttle valve provided in an intake passage of an internal combustion engine etc. At the downstream side of a pair of clearances formed at the top and bottom when the throttle valve opens, a means is provided acting on the flows of air passing through at least one of the clearances to reduce the flow rate and acting on the flows to cause the point of convergence of the flows of air passing through the pair of clearances to shift to the downstream side.

    摘要翻译： 一种用于防止流量噪声的装置，其抑制在设置在内燃机的进气通道中的节流阀打开时引起的噪音。在形成在顶部和底部的一对间隙的下游侧，当节气门 阀门打开时，提供作用于通过至少一个间隙的空气流动的装置，以减小流量并作用在流动上，以使通过一对间隙的空气流收敛点移动 到下游。

    Intake apparatus for internal combustion engine
    5.
    发明授权
    Intake apparatus for internal combustion engine 失效
    内燃机进气装置

    公开(公告)号：US4858568A

    公开(公告)日：1989-08-22

    申请号：US218244

    申请日：1988-07-13

    申请人： Hideki Obayashi ,  Yoshitaka Nishio ,  Tokio Kohama ,  Hiroyuki Goto

    发明人： Hideki Obayashi ,  Yoshitaka Nishio ,  Tokio Kohama ,  Hiroyuki Goto

    IPC分类号： F02B27/02

    CPC分类号： F02B27/0263 ,  F02B27/0215 ,  F02B27/0273 ,  F02B27/0278 ,  F02B27/0294 ,  F02M35/10229 ,  Y02T10/146

    摘要： An intake apparatus for an internal combustion engine that has a first intake passage communicating with a combustion chamber of the internal combustion engine; a second intake passage which communicates with the combustion chamber of the internal combustion engine and whose length is greater than a length of the first intake passage; a valve for selectively changing over the communication/shutting off of the combustion chamber of the internal combustion engine with/from between the first or/and second intake passages; and a drive circuit for driving the valve to effect the changing over operation. A controller controls the drive circuit, and an air cleaner device introduces clean air into the combustion chamber of the internal combustion engine. The first and second intake passages are disposed inside a case of the air cleaner device, and the valve is disposed at a position which is prevented from interfering the outlet side of the second intake passage when the first intake passage is closed by the valve and the second intake passage is opened by the valve.

    摘要翻译： 一种内燃机的进气装置，具有与内燃机的燃烧室连通的第一进气通路， 第二进气通道，其与内燃机的燃烧室连通并且其长度大于第一进气通道的长度; 用于选择性地在第一或第二进气通道之间切换内燃机的燃烧室的连通/关闭的阀; 以及用于驱动阀以实现切换操作的驱动电路。 控制器控制驱动电路，空气滤清器设备将清洁空气引入内燃机的燃烧室。 第一进气通道和第二进气通道设置在空气滤清器装置的壳体的内部，并且阀设置在当第一进气通道被阀关闭时防止其干扰第二进气通道的出口侧的位置， 第二进气通道被阀打开。

    Canister for use in evaporative emission control system for automotive vehicle
    6.
    发明授权
    Canister for use in evaporative emission control system for automotive vehicle 失效
    罐用于汽车的蒸发排放控制系统

    公开(公告)号：US5915364A

    公开(公告)日：1999-06-29

    申请号：US866109

    申请日：1997-05-30

    申请人： Naoya Katou ,  Hideaki Itakura ,  Tohru Yoshinaga ,  Tokio Kohama ,  Katsuo Azegami ,  Kazuto Maeda ,  Nobuhiko Koyama

    发明人： Naoya Katou ,  Hideaki Itakura ,  Tohru Yoshinaga ,  Tokio Kohama ,  Katsuo Azegami ,  Kazuto Maeda ,  Nobuhiko Koyama

    IPC分类号： F02M25/08 ,  F02M37/04

    CPC分类号： F02M25/0854

    摘要： A canister for use in an evaporative emission control system of an automotive vehicle is provided which includes a box-like casing, an inlet port formed in one end wall of the casing through which fuel vapors generated within a fuel tank are drawn into the canister, and a plurality of vapor-adsorbing passages each of which is filled with activated carbon and has a given length through which the fuel vapors drawn through the inlet port flow. The vapor-adsorbing passages are all arranged within said casing in parallel to each other. This arrangement allows the casing to be of a flat shape which facilitates easy installation of the canister within a flat space around a fuel tank.

    摘要翻译： 提供一种用于机动车辆的蒸发排放控制系统的罐，其包括盒状壳体，形成在壳体的一个端壁中的入口，通过该入口端口在燃料箱内产生的燃料蒸汽被吸入罐中， 以及多个蒸气吸附通道，每个通过活性炭填充并且具有给定的长度，通过该入口端口吸入的燃料蒸气流过该长度。 蒸汽吸附通道全部彼此平行布置在所述壳体内。 这种布置允许壳体是平坦的形状，其有利于容易地将罐安装在燃料箱周围的平坦空间内。

    Method for controlling air-fuel ratio in internal combustion engine
    9.
    发明授权
    Method for controlling air-fuel ratio in internal combustion engine 失效
    内燃机空燃比控制方法

    公开(公告)号：US4616619A

    公开(公告)日：1986-10-14

    申请号：US630682

    申请日：1984-07-13

    申请人： Kimitaka Saito ,  Tokio Kohama ,  Tsuneyuki Egami ,  Tsutomu Saito ,  Hiroshi Takahashi ,  Kunihiko Sato

    发明人： Kimitaka Saito ,  Tokio Kohama ,  Tsuneyuki Egami ,  Tsutomu Saito ,  Hiroshi Takahashi ,  Kunihiko Sato

    IPC分类号： F02D41/10 ,  F02D41/14

    CPC分类号： F02D41/107 ,  F02D41/1487

    摘要： A method for controlling the air-fuel ratio in an internal combustion engine in which the correction value of a transient fuel injection amount is decided, at a predetermined interval, in accordance with the acceleration or deceleration state of the engine, and the amount of fuel injection supplied to the engine is corrected by the decided correction value. In the process of the correction, the deviation of the air-fuel ratio from a reference air-fuel ratio in acceleration or deceleration of the engine is detected, and the correction value of the fuel injection amount correction in the transient state of the engine in accordance with the detected air-fuel ratio deviation is determined. In the correction of amount of fuel injection in the transient state of the engine, the correction value is decided on the basis of a factor for deciding the correction value and the blunted value of the factor for deciding the correction value.

    摘要翻译： 一种用于控制内燃机中的空燃比的方法，其中根据发动机的加速或减速状态以预定间隔决定瞬时燃料喷射量的校正值，并且燃料量 提供给发动机的喷射通过所确定的校正值来校正。 在校正过程中，检测到发动机的加速或减速中的空燃比与参考空燃比的偏差，并且发动机的过渡状态下的燃料喷射量校正的校正值 根据检测到的空燃比偏差来确定。 在发动机的过渡状态下的燃料喷射量的校正中，基于用于决定校正值的因子和用于决定校正值的系数的钝化值来决定校正值。