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    Electronic control system for carburetor
    1.
    发明授权
    Electronic control system for carburetor 失效
    化油器电子控制系统

    公开(公告)号：US4250855A

    公开(公告)日：1981-02-17

    申请号：US54432

    申请日：1979-07-03

    申请人： Tokio Kohama ,  Takeshi Matsui ,  Akira Nishimatsu ,  Kiyoshi Kobashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Hidetaka Nohira

    发明人： Tokio Kohama ,  Takeshi Matsui ,  Akira Nishimatsu ,  Kiyoshi Kobashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Hidetaka Nohira

    IPC分类号： F02M7/28 ,  F02D41/02 ,  F02D41/24 ,  F02M7/24

    CPC分类号： F02D41/28 ,  F02D41/02 ,  F02M7/24

    摘要： In a carburetor for an internal combustion engine, a control valve is disposed with an air passage through the carburetor structure to control the flow quantity of air to be mixed with fuel from a float chamber and a pneumatic servo-motor is operatively connected with the control valve to control the opening degree of the valve. The pneumatic pressure applied to the servo-motor is electrically controlled to satisfy the following function in relation to the engine intake manifold vacuum and the engine speed.Pd=f(Pv, N)where the character Pd is the pneumatic pressure applied to the servo-motor, and the characters Pv and N respectively indicate the engine intake manifold vacuum and the engine speed.

    摘要翻译： 在用于内燃机的化油器中，控制阀设置有通过化油器结构的空气通道，以控制与浮子室与燃料混合的空气的流量，气动伺服电动机与控制器可操作地连接 阀门来控制阀门的开度。 施加到伺服电动机的气压被电控制以满足关于发动机进气歧管真空度和发动机转速的以下功能。 Pd = f（Pv，N）其中字符Pd是施加到伺服电动机的气压，并且字符Pv和N分别表示发动机进气歧管真空度和发动机转速。

    Electronic control system for internal combustion engines
    2.
    发明授权
    Electronic control system for internal combustion engines 失效
    内燃机电子控制系统

    公开(公告)号：US4248187A

    公开(公告)日：1981-02-03

    申请号：US064871

    申请日：1979-08-08

    申请人： Takeshi Matsui ,  Tokio Kohama ,  Hisasi Kawai ,  Akira Nishimatsu ,  Toshikazu Ina ,  Hidetaka Nohira ,  Kiyoshi Kobashi

    发明人： Takeshi Matsui ,  Tokio Kohama ,  Hisasi Kawai ,  Akira Nishimatsu ,  Toshikazu Ina ,  Hidetaka Nohira ,  Kiyoshi Kobashi

    IPC分类号： F02D21/08 ,  F02D41/14 ,  F02D41/24 ,  F02D43/00 ,  F02M7/24 ,  F02M25/07 ,  F02B47/08 ,  F02M25/06

    CPC分类号： F02M7/24 ,  F02D41/0077 ,  F02D41/14 ,  F02D41/28 ,  F02M26/39 ,  F02M26/57 ,  F02M2026/009 ,  Y02T10/47

    摘要： In a carburetor and an exhaust gas recirculation system adapted to an internal combustion engine, the system comprises a first servomotor to be operated by pneumatic pressure and a first control valve actuated by the first servomotor to control the quantity of exhaust gases recirculated into an intake manifold from an exhaust pipe, and the carburetor comprises a second servomotor to be operated by pneumatic pressure and a second control valve actuated by the second servomotor to control the flow quantity of air to be mixed with fuel from a float chamber. The pneumatic pressure applied to the first and second servomotors is electrically controlled to satisfy the following function in relation to the engine intake manifold vacuum and the engine speed.Pe=f(Pv, N)where Pe is the pneumatic pressure applied to the servomotors, Pv and N respectively indicate the engine intake manifold vacuum and the engine speed.

    摘要翻译： 在适用于内燃机的化油器和废气再循环系统中，该系统包括由气动压力操作的第一伺服电动机和由第一伺服电机致动的第一控制阀，以控制再循环进入歧管的废气量 并且所述化油器包括由气动压力操作的第二伺服电动机和由所述第二伺服电机致动的第二控制阀，以控制与来自浮子室的燃料混合的空气的流量。 施加到第一和第二伺服电动机的气压被电控制以满足关于发动机进气歧管真空度和发动机转速的以下功能。 Pe = f（Pv，N）其中Pe是施加到伺服电机的气动压力，Pv和N分别表示发动机进气歧管真空度和发动机转速。

    Exhaust gas recirculation valve control system and method
    4.
    发明授权
    Exhaust gas recirculation valve control system and method 失效
    排气再循环阀控制系统及方法

    公开(公告)号：US4322799A

    公开(公告)日：1982-03-30

    申请号：US42344

    申请日：1979-05-25

    申请人： Tokio Kohama ,  Takeshi Matsui ,  Hisasi Kawai ,  Akira Nishimatsu ,  Toshikazu Ina ,  Hidetaka Nohira ,  Kiyoshi Kobashi

    发明人： Tokio Kohama ,  Takeshi Matsui ,  Hisasi Kawai ,  Akira Nishimatsu ,  Toshikazu Ina ,  Hidetaka Nohira ,  Kiyoshi Kobashi

    IPC分类号： F02M25/07 ,  F02D21/08 ,  F02M25/06 ,  G05B15/02

    CPC分类号： F02D41/0065 ,  Y02T10/47

    摘要： An exhaust gas recirculation system comprises a speed detector for generating an engine rotational speed signal and a reference rotational position detection signal, a pressure sensor for detecting the negative pressure in the intake pipe of an engine to generate a negative pressure signal, a microcomputer responsive to the negative pressure signal and the rotational speed signal generated at the reference rotational position of the engine to compute an amount of exhaust gas recirculation in synchronism with the reference rotational position detection signal, and an electronic control circuit for controlling the opening of an exhaust gas recirculation control valve in accordance with the computed amount.

    摘要翻译： 排气再循环系统包括用于产生发动机转速信号和基准旋转位置检测信号的速度检测器，用于检测发动机的进气管中的负压以产生负压信号的压力传感器，响应于 所述负压信号和所述转速信号在所述发动机的基准旋转位置处产生，以与所述参考旋转位置检测信号同步地计算废气再循环量;以及电子控制电路，用于控制所述排气再循环 控制阀根据计算量。

    Device for supplying secondary air for purifying exhaust gases discharged from internal combustion engine
    6.
    发明授权
    Device for supplying secondary air for purifying exhaust gases discharged from internal combustion engine 失效
    用于提供用于净化从内燃机排出的废气的二次空气的装置

    公开(公告)号：US4146986A

    公开(公告)日：1979-04-03

    申请号：US744824

    申请日：1976-11-24

    申请人： Tokio Kohama ,  Hideki Obayashi ,  Tadashi Ozaki ,  Hidetaka Nohira

    发明人： Tokio Kohama ,  Hideki Obayashi ,  Tadashi Ozaki ,  Hidetaka Nohira

    IPC分类号： F01N3/22 ,  F02D21/08 ,  F01N3/10

    CPC分类号： F02D21/08 ,  F01N3/22 ,  F01N3/227 ,  F02M26/56

    摘要： A device for supplying secondary air in proportion to the volume of intake air into the exhaust manifold of an internal combustion engine without any adverse effects on an exhaust gas recirculation system, the device comprising a secondary air supply pipe communicated with the exhaust manifold, means for supplying secondary air through the secondary air supply pipe into the exhaust manifold, secondary air control valve means disposed in the secondary air supply pipe for controlling the flow rate of secondary air flowing therethrough, means for detecting the volume of intake air to said engine, means for detecting the volume of the secondary air flowing through the secondary air supply pipe, and means responsive to both the signal representative of the detected volume of intake air and the signal representative of the detected volume of the secondary air supply for controlling the secondary air control valve means in such a way that the secondary air supply may be in proportion to the volume of intake air.

    摘要翻译： 一种用于将二次空气与进气的比例成比例地供给到内燃机的排气歧管中的装置，对废气再循环系统没有任何不利影响，该装置包括与排气歧管连通的二次空气供应管， 将二次空气通过二次空气供给管供给到排气歧管中，设置在二次空气供给管中的二次空气控制阀装置，用于控制流过其中的二次空气的流量，用于检测到所述发动机的进气量的装置 用于检测流过二次空气供应管的二次空气的体积，以及响应于表示检测到的进气体积的信号和表示二次空气供应的检测体积的信号两者的装置，用于控制二次空气控制 阀门装置使得二次空气供应可以与v成比例 进气口。

    Exhaust gas recirculation system for internal combustion engine
    7.
    发明授权
    Exhaust gas recirculation system for internal combustion engine 失效
    内燃机排气再循环系统

    公开(公告)号：US4196706A

    公开(公告)日：1980-04-08

    申请号：US871936

    申请日：1978-01-24

    申请人： Tokio Kohama ,  Hideki Obayashi ,  Tadashi Ozaki ,  Hidetaka Nohira

    发明人： Tokio Kohama ,  Hideki Obayashi ,  Tadashi Ozaki ,  Hidetaka Nohira

    IPC分类号： F02M25/07 ,  F02M25/06

    CPC分类号： F02M26/56

    摘要： In an exhaust gas recirculation system for an internal combustion engine of the type including an exhaust gas recirculation passage for communicating an exhaust tube with an intake tube downstream of a throttle valve disposed therein for recirculating part of exhaust gases from the exhaust tube into the intake tube, and a control valve for controlling the flow rate of exhaust gases flowing through the recirculation passage, there are provided negative pressure control means responsive to the negative intake pressure downstream of the throttle valve in the intake tube for generating a pressure signal the magnitude of which is in proportion to the load on the internal combustion engine, and a modulator responsive to the pressure in the recirculation passage upstream of the control valve for controlling the pressure signal, whereby the pressure signal which is controlled by the modulator operates the recirculation gas flow rate control valve in such a manner that the volume of exhaust gases to be recirculated may be in proportion to the load on the engine.

    摘要翻译： 在用于内燃机的废气再循环系统中，该排气再循环系统包括排气再循环通道，用于将排气管与设置在其中的节流阀下游的进气管连通，用于将废气的一部分从排气管再循环到进气管 以及用于控制流过再循环通道的废气流量的控制阀，提供负压控制装置，其响应于进气管中的节流阀下游的负进气压力，用于产生压力信号，其压力信号的大小 与内燃机上的负载成比例，以及响应于控制阀上游的再循环通道中的压力的​​调节器，用于控制压力信号，由调节器控制的压力信号操作再循环气体流量 控制阀的排气量 要重新循环可能与发动机上的负载成比例。

    Exhaust gas recirculation system for an internal combustion engine
    8.
    发明授权
    Exhaust gas recirculation system for an internal combustion engine 失效
    内燃机排气再循环系统

    公开(公告)号：US4148286A

    公开(公告)日：1979-04-10

    申请号：US837865

    申请日：1977-09-29

    申请人： Tokio Kohama ,  Hideki Obayashi ,  Tadashi Ozaki ,  Hidetaka Nohira

    发明人： Tokio Kohama ,  Hideki Obayashi ,  Tadashi Ozaki ,  Hidetaka Nohira

    IPC分类号： F02M25/07 ,  F02M25/06

    CPC分类号： F02M26/56

    摘要： An engine exhaust gas recirculation system has an E.G.R. passage for recirculating exhaust gases from an exhaust system of an engine back into an intake system thereof downstream of a throttle valve. The E.G.R. passage has a restriction orifice therein and an E.G.R. control valve responsive to a vacuum signal to control the recirculation of exhaust gases through the E.G.R. passage. A pressure comparator and modulator is pneumatically connected to the E.G.R. passage upstream and downstream of the restriction orifice, to the carburetor venturi, to the intake manifold and to the E.G.R. control valve and operative to compare the venturi vacuum with the exhaust gas pressure difference across the restriction orifice thereby to modulate the intake manifold vacuum to be fed to the E.G.R. control valve so that the latter is controlled by the thus modulated vacuum to keep the exhaust gas pressure difference proportional to the venturi vacuum whereby the volumetric quantity of recirculated exhaust gases is made proportional to the volumetric quantity of engine intake air.

    摘要翻译： 发动机废气再循环系统具有E.G.R. 将废气从发动机的排气系统再循环回到其在节流阀下游的进气系统的通道。 E.G.R. 通道在其中具有限制孔口，而E.G.R. 控制阀响应于真空信号以控制废气通过E.G.R.再循环。 通道。 压力比较器和调节器气动连接到E.G.R. 通道限制孔的上游和下游，到化油器文丘里管，到进气歧管和E.G.R. 控制阀并且可操作地将文丘里真空与限制孔两端的排气压力差进行比较，从而调节进给歧管真空以供给到E.G.R. 控制阀，使得后者由这样调节的真空控制，以保持排气压力差与文丘里管真空成正比，由此再循环废气的体积量与发动机进气的体积成正比。

    Exhaust gas recirculation system for internal combustion engines
    9.
    发明授权
    Exhaust gas recirculation system for internal combustion engines 失效
    内燃机排气再循环系统

    公开(公告)号：US4230079A

    公开(公告)日：1980-10-28

    申请号：US17147

    申请日：1979-03-02

    申请人： Tokio Kohama ,  Tadashi Ozaki ,  Hideki Obayashi ,  Hidetaka Nohira

    发明人： Tokio Kohama ,  Tadashi Ozaki ,  Hideki Obayashi ,  Hidetaka Nohira

    IPC分类号： F02M25/07 ,  F02M25/06

    CPC分类号： F02M26/56

    摘要： An exhaust gas recirculation system for internal combustion engines comprises an exhaust gas recirculating passage for tapping engine exhaust gas from an exhaust pipe and feeding back to an engine intake pipe downstream of a throttle valve disposed therein, a control valve for opening and closing the recirculating passage in response to a pressure signal, and a throttle port formed in the intake pipe at such position that the port lies upstream of the throttle valve at the fully closed position thereof while lying downstream of the throttle valve when it is opened to a predetermined opening angle. A pressure control valve is provided for controlling the pressure signal to be transmitted to the control valve in accordance with a pressure in the intake pipe downstream of the throttle valve, a pressure derived from the throttle port and a pressure in a pressure cell provided in the recirculating passage upstream of the control valve, thereby to control the exhaust gas recirculation rate fed back to the intake pipe in consideration of the operating load conditions and the revolution number of the engine.

    摘要翻译： 用于内燃机的废气再循环系统包括排气再循环通道，用于从排气管抽出发动机废气并将其反馈到设置在其中的节流阀下游的发动机进气管;用于打开和关闭循环通道的控制阀 响应于压力信号，以及形成在进气管中的节气门口，在这样的位置处，当阀门打开到预定的开启角度时，该端口位于节流阀的完全关闭位置的上游，同时位于节流阀的下游 。 一种压力控制阀，用于根据节流阀下游的进气管中的压力，从节气门口导出的压力和设置在节流阀中的压力室中的压力来控制要传递到控制阀的压力信号 考虑到工作负荷条件和发动机的转数，控制回流到进气管的废气再循环速度。

    Exhaust gas purifying apparatus for internal combustion engine
    10.
    发明授权
    Exhaust gas purifying apparatus for internal combustion engine 失效
    内燃机用废气净化装置

    公开(公告)号：US4222237A

    公开(公告)日：1980-09-16

    申请号：US936850

    申请日：1978-08-25

    申请人： Tokio Kohama ,  Hideki Obayashi ,  Tadashi Ozaki ,  Hidetaka Nohira

    发明人： Tokio Kohama ,  Hideki Obayashi ,  Tadashi Ozaki ,  Hidetaka Nohira

    IPC分类号： F01N3/22 ,  F01N3/10

    CPC分类号： F01N3/227 ,  F01N3/22

    摘要： An exhaust gas purifying apparatus for internal combustion engine of the type having an intake conduit for supplying air-fuel mixture to the engine, an exhaust conduit for conducting exhaust gas discharged from the engine to a catalyst for purifying the exhaust gas, secondary air supply pump driven by the engine for supplying secondary air to the exhaust conduit and detector for detecting oxygen content of the exhaust gas. The negative pressure in the intake conduit is compared with the differential pressure produced across a restriction disposed in the secondary air supply conduit thereby to control the quantity of the secondary air supply so as to be proportional to the quantity of the intake in dependence on the result of the comparison. The output signal of the oxygen detector is utilized for modifying the above control.

    摘要翻译： 一种用于内燃机的排气净化装置，其具有用于向发动机供应空气 - 燃料混合物的进气管道，用于将从发动机排出的废气排放到用于净化废气的催化剂的排气管道，二次空气供给泵 由用于向排气管道供应二次空气的发动机和用于检测废气的氧含量的检测器驱动。 将进气管道中的负压与设置在二次空气供应管道中的限制器上产生的压差进行比较，从而控制二次空气供应量，以便根据结果与进气量成比例 的比较。 氧检测器的输出信号用于修改上述控制。