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1.发明授权
公开(公告)号：US4118976A
公开(公告)日：1978-10-10
申请号：US859564
申请日：1977-12-12
申请人： Tadao Mitsuda , Takeru Yasuda , Sigeru Okuda
发明人： Tadao Mitsuda , Takeru Yasuda , Sigeru Okuda
摘要： Disclosed herein is a switch device adapted for attaching to a carburetor of an internal combustion engine for detecting a predetermined position of a throttle valve of the carburetor. A lever mechanism which can be moved together with the throttle valve is arranged on the carburetor. The lever mechanism cooperates with a limit switch when the throttle valve is situated at a predetermined position. Thus, an electrical signal indicating the predetermined position is obtained from the limit switch.
摘要翻译： 这里公开了一种开关装置，其适于附接到用于检测化油器的节流阀的预定位置的内燃机的化油器。 在化油器上设置有可与节流阀一起移动的杠杆机构。 当节流阀位于预定位置时，杠杆机构与限位开关配合。 因此，从限位开关获得表示预定位置的电信号。
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2.发明授权
公开(公告)号：US4250706A
公开(公告)日：1981-02-17
申请号：US947507
申请日：1978-10-02
申请人： Tadao Mitsuda , Takeru Yasuda , Toshimichi Asai
发明人： Tadao Mitsuda , Takeru Yasuda , Toshimichi Asai
摘要： Disclosed is an apparatus for controlling the amount of secondary air fed into an internal combustion engine. This apparatus includes means for causing a sudden change of the level of the absolute pressure signal for driving the secondary air flow control means each time the level of the output voltage of the air-fuel ratio sensor changes. Thus, the equivalent air-fuel ratio is maintained for a long time within a desired range so that the highest purifying efficiency of the three-way catalytic converter can be attained.
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。 该装置包括每当空燃比传感器的输出电压的电平改变时，使绝对压力信号的电平突然变化以驱动二次空气流量控制装置的装置。 因此，等效空燃比在期望的范围内保持长时间，从而可以实现三元催化转化器的最高净化效率。
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公开(公告)号：US4154057A
公开(公告)日：1979-05-15
申请号：US845557
申请日：1977-10-26
申请人： Tadao Mitsuda , Takeru Yasuda , Kazusato Kasuya
发明人： Tadao Mitsuda , Takeru Yasuda , Kazusato Kasuya
摘要： Disclosed is an exhaust gas cleaning apparatus of an internal combustion engine, provided with a three-way catalytic converter and a vacuum-operated flow control valve having a diaphragm for controlling the amount of secondary air directed into an exhaust manifold of the engine for an effective operation of the three-way catalytic converter. The diaphragm operates to increase or decrease the amount of secondary air in accordance with the change of vacuum force on the diaphragm, which force is generated by a vacuum signal transmitted into the valve from an intake manifold of the engine. Means are provided for compensating the difference in the vacuum levels between a high-load condition and a low-load condition so that the rate of increase in the vacuum force of the diaphragm is substantially kept near a constant value for every kind of engine condition. Thus, an ideal operation of the three-way catalytic converter can be obtained.
摘要翻译： 公开了一种内燃机的排气净化装置，其具有三通式催化转化器和具有隔膜的真空操作流量控制阀，所述隔膜用于控制引导到发动机的排气歧管中的二次空气的量，用于有效 三元催化转化器的运行。 隔膜用于根据隔膜上的真空力的变化增加或减少二次空气的量，该力是由从发动机的进气歧管传递到阀中的真空信号产生的。 提供了用于补偿高负载状态和低负载状态之间的真空水平差异的装置，使得隔膜的真空力的增加率对于每种发动机状态基本上保持在恒定值附近。 因此，可以获得三元催化转化器的理想操作。
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公开(公告)号：US4141214A
公开(公告)日：1979-02-27
申请号：US823758
申请日：1977-08-11
申请人： Tadao Mitsuda , Takeru Yasuda , Yoshiki Fukumori
发明人： Tadao Mitsuda , Takeru Yasuda , Yoshiki Fukumori
摘要： Disclosed is an exhaust gas cleaning apparatus of an internal combustion engine, provided with a three-way catalytic converter, an air-fuel ratio sensor in the form of an oxygen concentration-cell which detects an air-fuel ratio higher than a stoichiometric air-fuel ratio at which the converter effectively operates, and a secondary air injection system adapted for increasing or decreasing the amount of secondary air introduced into the exhaust pipe of the engine in accordance with electrical signals transmitted from the air-fuel ratio sensor. Means are provided for controlling the speed of introduction of secondary air so that the speed of decreasing the amount of secondary air is higher than the speed of increasing the amount of secondary air. Therefore, the air-fuel ratio of the exhaust gas is effectively controlled by signals transmitted from the sensor to approximate the stoichiometric ratio.
摘要翻译： 本发明公开了一种内燃机的废气净化装置，其具备三元催化转化器，氧浓度单元形式的空燃比传感器，该氧浓度池检测空燃比高于理论空燃比， 燃料比率，以及二次空气喷射系统，其适于根据从空燃比传感器传送的电信号增加或减少引入发动机排气管的二次空气量。 提供了用于控制二次空气引入速度的装置，使得减少二次空气量的速度高于增加二次空气量的速度。 因此，通过从传感器发送的信号来有效地控制废气的空燃比，使其近似于化学计量比。
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公开(公告)号：US4162612A
公开(公告)日：1979-07-31
申请号：US845233
申请日：1977-10-25
申请人： Tadao Mitsuda , Takeru Yasuda , Yoshiki Fukumori
发明人： Tadao Mitsuda , Takeru Yasuda , Yoshiki Fukumori
摘要： Disclosed is an exhaust gas cleaning apparatus of an internal combustion engine, provided with a three-way catalytic converter, an air-fuel ratio sensor and a secondary air injection system. The secondary air injection system has a diaphragm-operated flow control valve for increasing or decreasing the amount of secondary air introduced into the exhaust manifold of the engine in accordance with electrical signals transmitted from the air-fuel ratio sensor. Means are provided for rapidly increasing or decreasing the air-fuel ratio to a stoichiometric value at the moment when the amount of secondary air passed through the flow control valve is increased or decreased. Therefore, the air-fuel ratio is maintained quite near the stoichiometric value at which the three-way catalytic converter can effectively operate to clean the three major toxic components in the exhaust gas.
摘要翻译： 公开了具有三元催化转化器，空燃比传感器和二次空气喷射系统的内燃机的废气净化装置。 二次空气喷射系统具有隔膜操作的流量控制阀，用于根据从空燃比传感器传递的电信号增加或减少引入发动机的排气歧管的二次空气的量。 提供了在通过流量控制阀的二次空气量增加或减少的时刻将空燃比快速增加或降低至化学计量值的装置。 因此，空燃比保持相当接近三元催化转化器可有效操作以清理废气中三种主要有毒成分的化学计量值。
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6.发明授权
公开(公告)号：US4224911A
公开(公告)日：1980-09-30
申请号：US37751
申请日：1979-05-10
申请人： Tadao Mitsuda , Minoru Iwata , Masatoshi Sugiura
发明人： Tadao Mitsuda , Minoru Iwata , Masatoshi Sugiura
CPC分类号： F02D43/00 , F02D41/1454 , F02M23/04 , Y02T10/146
摘要： An apparatus for controlling the amount of secondary air fed into an internal combustion engine which includes means for controlling the response speed of a secondary air flow control means in accordance with an electrical signal. This signal is generated by integrating the value of an intake air amount signal, which is generated by multiplying the rotational speed of the engine and the load of the engine, in an interval direction determined by an equivalent air-fuel ratio condition of the engine. Thus, the equivalent air-fuel ratio can be controlled with a response speed corresponding to the amount of the flow of the exhaust gas. Furthermore, excessive control of the equivalent air-fuel ratio can be prevented.
摘要翻译： 一种用于控制进入内燃机的二次空气量的装置，其包括用于根据电信号控制二次空气流量控制装置的响应速度的装置。 该信号通过将由发动机的转速和发动机的负载相乘而产生的进气量信号的值在由发动机的等效空燃比条件确定的间隔方向上积分来生成。 因此，可以以对应于废气流量的响应速度来控制等效空燃比。 此外，可以防止等效空燃比的过度控制。
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7.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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8.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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