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公开(公告)号：US4254754A
公开(公告)日：1981-03-10
申请号：US41229
申请日：1979-05-21
CPC分类号： F02M7/28 , F02D35/0061 , F02M3/09 , Y10T137/86879
摘要： An air-fuel ratio controller for use in an internal combustion engine, of a type having an exhaust gas sensor disposed in the exhaust passage, a control circuit and a solenoid valve having a valve seat in which passages open leading to the air bleeds of the slow and main systems of the carburetor, the controller being adapted to actuate a valve of the solenoid valve, in accordance with a signal derived from the exhaust gas sensor, into and out of contact with the valve seat, so as to simultaneously control the flow rates of bleed air in the air bleeds of the slow and main systems. A recess is formed in the cooperating surface of the valve seat or the valve, at a position between the openings of the passages in the valve seat. This recess communicates with a chamber which in turn communicates with the air inlet. Unfavorable mutual direct communication of the passages with each other is avoided, even when a slight gap is formed between the valve seat and the valve seated on the latter due to inclination of the valve seat or the like reason, because both passages communicate with the chamber through the recess.
摘要翻译： 一种用于内燃机的空燃比控制器，具有设置在排气通道中的排气传感器的类型的控制电路和电磁阀，该阀座具有通向开口的通道， 化油器的缓慢和主系统，控制器适于根据来自排气传感器的信号致动电磁阀的阀，进入和脱离与阀座的接触，以便同时控制化油器的流量 缓慢和主要系统的空气中出血的速率。 在阀座的通道的开口之间的位置处，在阀座或阀的配合表面中形成凹部。 该凹部与室连通，该室又与空气入口连通。 即使由于阀座的倾斜等原因在阀座与位于阀座上的阀之间形成微小的间隙，因此两通道与室连通，因此避免了通道彼此不利的相互直接连通 通过休息。
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公开(公告)号：US4276745A
公开(公告)日：1981-07-07
申请号：US56759
申请日：1979-07-12
摘要： An improved exhaust gas control apparatus, which utilizes a 3-way catalyst for reducing the contents of harmful components in exhaust gas, incorporates a diaphragm type air pump for supplying secondary air, upstream of the catalyst, to the exhaust gas. A chamber, which is formed on one side of the diaphragm in the air pump, is communicated through an electromagnetic changeover valve with the upstream side of the catalyst.
摘要翻译： 利用三元催化剂来减少废气中的有害成分含量的改进的排气控制装置包括用于向催化剂的上游供应二次空气的隔膜式空气泵。 在气泵的隔膜的一侧形成的室通过电催化剂上游侧的电磁切换阀连通。
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公开(公告)号：US4287864A
公开(公告)日：1981-09-08
申请号：US78744
申请日：1979-09-25
申请人： Shigetaka Takada , Kazumichi Naruse
发明人： Shigetaka Takada , Kazumichi Naruse
CPC分类号： F02M3/09 , F02D35/0061 , F02M7/28 , Y10T137/7913
摘要： An air-fuel ratio control device characterized by the fact that an electromagnetic valve which controls the air bleed quantities for both high- and low-speed fuel systems simultaneously has a pin inserted in a valve disc so as to prevent the rotation of the valve disc but allow it to move axially for open-close operation, so that the valve disc and the seat always contact at the same contacting portion and maintain a perfect seal therebetween. This enables an accurate control of the air bleed quantitiy and therefore of the air-fuel ratio.
摘要翻译： 一种空燃比控制装置，其特征在于，同时控制高速燃料系统和低速燃料系统的排气量的电磁阀具有插入阀盘中的销，以防止阀盘的旋转 但允许其轴向移动以进行打开关闭操作，使得阀盘和座总是在相同的接触部分处接触并且在它们之间保持完美的密封。 这使得能够精确地控制排气量，因此能够准确地控制空气燃料比。
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4.发明授权Fuel air mixture supply system for use in fuel-injection-type internal combustion engine 失效用于燃油喷射型内燃机的燃油混合气供应系统
公开(公告)号：US4216753A
公开(公告)日：1980-08-12
申请号：US940366
申请日：1978-09-07
IPC分类号： F02D41/34 , F02D41/36 , F02M51/02 , F02M51/06 , F02M51/08 , F02M69/04 , F02M69/20 , F02M39/00 , B05B7/04
CPC分类号： F02M69/047 , F02D41/36 , F02M51/0671 , F02M69/044 , F02M69/20 , F02M2051/08 , Y02T10/44 , Y10S261/39
摘要： A fuel-air mixture supply system comprising a Venturi portion formed on the inner surface of a cylindrical suction system having a throttle valve therein, at least one fuel injection port provided in the Venturi portion and open into the suction system, an atomizing chamber located adjacently to the fuel injection port in a co-axial manner to the fuel injection port and having a nozzle to make the atomizing chamber communicate with the fuel injection port, a fuel injection valve connected to the cylindrical suction system to inject the fuel into the atomizing chamber at a predetermined pressure and an air bleed passage making the portion above the throttle valve in the suction system communicate with the atomizing chamber. The fuel injected into the atomizing chamber from the fuel injection valve is atomized by the air drawn into the chamber from the suction system through the air bleed passage. The atomized fuel is drawn into the suction system by the air flowing on the Venturi portion and is distributed in the suction system.
摘要翻译： 一种燃料 - 空气混合物供应系统，包括形成在其中具有节流阀的圆柱形抽吸系统的内表面上的文丘里部分，设置在文丘里部分中并且打开进入抽吸系统的至少一个燃料喷射口，相邻地设置的雾化室 以与燃料喷射口同向的方式连接到燃料喷射口，并且具有喷嘴以使雾化室与燃料喷射口连通;燃料喷射阀，连接到圆柱形吸入系统以将燃料喷射到雾化室 在预定的压力下和排气通道使得抽吸系统中节流阀上方的部分与雾化室连通。 从燃料喷射阀喷射到雾化室中的燃料被吸入系统通过排气通道吸入室中的空气雾化。 雾化的燃料通过在文丘里部分上流动的空气被吸入吸入系统中并分布在抽吸系统中。
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公开(公告)号：US4300505A
公开(公告)日：1981-11-17
申请号：US56757
申请日：1979-07-12
CPC分类号： F02D41/1483 , F02D41/1456 , Y02T10/142
摘要： An air-fuel ratio control device capable of accurately controlling the air-fuel ratio of the mixture to be supplied to the engine, without being affected by the external conditions such as the atmospheric pressure and the temperature of the air drawn into the engine. The control signal of the air-fuel ratio control device contains a sensitivity component whose magnitude varies in proportion to a time of duration for which the "rich" or "lean" input signal has continued, so that the air-fuel ratio of the mixture can be properly controlled for all engine running conditions, i.e., either when the engine is running under a light load condition or under a heavy load condition.
摘要翻译： 一种能够精确地控制供给到发动机的混合物的空燃比的空燃比控制装置，而不受外界条件如大气压和吸入发动机的空气的温度的影响。 空燃比控制装置的控制信号包含灵敏度成分，该灵敏度成分的大小与“浓”或“稀”输入信号持续的持续时间成比例地变化，从而混合物的空燃比 可以适用于所有发动机运行条件，即当发动机在轻负载条件下或在重负载条件下运行时。
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公开(公告)号：US4320730A
公开(公告)日：1982-03-23
申请号：US78739
申请日：1979-09-25
CPC分类号： F02D41/1482 , F02D41/1456
摘要： An air-fuel ratio control device for controlling the air-fuel ratio of the mixture to be supplied to internal combustion engine, in which a control level can be made to shift instantaneously even if the engine running condition changes abruptly so that smooth and accurate control of the air-fuel ratio can be performed. Integrators in the control circuit are provided with limiters to place upper and lower limits on the integrated value so as to prevent hunting under the idling condition.
摘要翻译： 一种用于控制供给内燃机的混合物的空燃比的空燃比控制装置，其中即使发动机运行状态突然变化，也能够使控制水平瞬间变化，从而能够平稳准确地控制 的空燃比。 控制电路中的积分器配有限位器，可将积分值的上下限置于下限位置，以防止怠速条件下的狩猎。
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7.发明授权
公开(公告)号：US4271667A
公开(公告)日：1981-06-09
申请号：US960654
申请日：1978-11-14
摘要： An apparatus for controlling the amount of secondary air fed into an internal combustion engine includes means for controlling the response speed of a secondary air flow control means in accordance with the amount of exhaust gas emitted from the engine. Thus, the equivalent air-fuel ratio can be correctly controlled, without delay, in response to changes in the operating condition of the engine.
摘要翻译： 用于控制供给到内燃机中的二次空气量的装置包括用于根据从发动机排出的废气量来控制二次空气流量控制装置的响应速度的装置。 因此，可以响应于发动机的运行状态的变化，无延迟地正确地控制等效空燃比。
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8.发明授权
公开(公告)号：US4179882A
公开(公告)日：1979-12-25
申请号：US912007
申请日：1978-06-02
CPC分类号： F01N3/227 , F01N3/22 , F02D41/1489
摘要： Disclosed is an apparatus for controlling the amount of secondary air fed into an internal combustion engine. The apparatus includes an independent means for rapidly applying an absolute pressure signal to a secondary air flow control means, so that secondary air is rapidly supplied into the engine when the secondary air flow control means is being reset in its initial position, and then, next, a rich signal is applied. Thus, the equivalent air-fuel ratio can be correctly controlled, without delay, in response to changes in the operating condition of the engine.
摘要翻译： 公开了一种用于控制供给到内燃机中的二次空气量的装置。 该装置包括用于将二次空气流量控制装置的绝对压力信号快速施加到二次空气流量控制装置的独立装置，使得当二次空气流量控制装置被复位到其初始位置时，二次空气被迅速地供给到发动机中，然后是下一个 ，应用丰富的信号。 因此，可以响应于发动机的运行状态的变化，无延迟地正确地控制等效空燃比。
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公开(公告)号：US4376430A
公开(公告)日：1983-03-15
申请号：US282290
申请日：1981-07-10
CPC分类号： F02D41/1481 , F02D35/00 , F02D41/1482
摘要： An air-fuel ratio control device for controlling the air-fuel ratio of a mixture to be supplied into an internal combustion engine. The device has a control circuit adapted to produce, in accordance with the offset of the output of an oxygen sensor in the exhaust system of the engine from a reference value corresponding to the desired air-fuel ratio, a control signal for making the air-fuel ratio coincide with the command air-fuel ratio. The device further has a mixture supplying means including means for adjusting the air-fuel ratio in accordance with the control signal. The air-fuel ratio adjusting means includes an actuator incorporating a step motor adapted to change the opening area of fuel passage or air bleed passage of a carburetor. The control circuit has means for temporarily stopping the step motor for a predetermined time length before the stepping speed or the stepping direction of the motor is changed, to assure the correct operation of the step motor and, hence, a precise control of the air-fuel ratio.
摘要翻译： 一种空燃比控制装置，用于控制供给到内燃机中的混合物的空燃比。 该装置具有控制电路，其适于根据与发动机的排气系统中的氧传感器的输出的偏移量相对应于所需空燃比的参考值产生一个控制信号， 燃油比与指挥空燃比一致。 该装置还具有混合物供给装置，其包括根据控制信号调节空燃比的装置。 空燃比调节装置包括具有适于改变化油器的燃料通道的开口面积或排气通道的步进电动机的致动器。 该控制电路具有在电动机的步进速度或步进方向改变之前临时停止步进电动机预定时间长度的装置，以确保步进电动机的正确操作，并因此精确地控制空气 - 燃料比。
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公开(公告)号：US4407248A
公开(公告)日：1983-10-04
申请号：US341087
申请日：1982-01-20
摘要： An electronically controlled carburetor for an internal combustion engine for a vehicle has a variable venturi for varying the venturi cross-section and concurrently varying the amount of air metered into the venturi in response to the engine demands an air flow sensor for sensing the displacement of the variable venturi and producing related electrical signals in response to changes in air flow through the venturi, a main fuel nozzle for discharging metered fuel into the venturi, a fuel flow sensor for sensing pressure differential of fuel across a main fuel jet communicating with the main fuel nozzle and for producing related electrical signals in response to changes in fuel flow through the main fuel jet, an air bleed controlling actuator for controlling the amount of air to be bled into the main fuel nozzle, and a control circuit responsive to the output signals from the air flow sensor and the fuel flow sensor for driving the air bleed controlling actuator. With this arrangement, the amount of air bleed may be controlled so as to set the ratio of air-to-fuel at an arbitrary fixed value at all times.
摘要翻译： 用于车辆内燃机的电子控制化油器具有可变文丘里管，用于改变文丘里管横截面并且响应于发动机要求而同时改变计量到文氏管中的空气量，用于感测发动机的位移 可变文氏管，并响应于通过文丘里管的空气流的变化产生相关的电信号，用于将计量燃料排放到文丘里管的主燃料喷嘴，用于感测通过与主燃料连通的主燃料射流的燃料压力差的燃料流量传感器 喷嘴和用于响应于通过主燃料喷嘴的燃料流量的变化产生相关的电信号;排气控制致动器，用于控制排放到主燃料喷嘴中的空气量;以及控制电路，其响应于来自 气流传感器和用于驱动排气控制致动器的燃料流量传感器。 通过这种布置，可以控制排气量，以将空气 - 燃料的比率始终设定在任意的固定值。
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