公开(公告)号：US07121269B2

公开(公告)日：2006-10-17

申请号：US10825791

申请日：2004-04-16

申请人： Michael North

发明人： Michael North

IPC分类号： F02B23/00

CPC分类号： F02D35/0023 ,  F02D35/0061 ,  F02M1/10

摘要： The present invention discloses an air-entrainment mechanism for carbureted engine. The mechanism includes a plunger valve controlled by a solenoid. The solenoid is powered by a battery with a switch electrically coupled thereto. The plunger valve is interconnected to the carburetor to allow additional air entrainment. The solenoid is coupled to the valve for opening and closing the valve. The switch electrically couples the solenoid to the battery to activate the solenoid for movement of the valve. The switch disclosed herein includes a temperature sensor and an engine-running sensor. The switch is then closeable when the temperature sensor detects an engine temperature within a predetermined range as long as the engine is not already running.

摘要翻译： 本发明公开了一种用于碳化发动机的空气夹带机构。 该机构包括由螺线管控制的柱塞阀。 螺线管由具有与其电耦合的开关的电池供电。 柱塞阀与化油器互连，以允许额外的空气夹带。 螺线管联接到阀门，用于打开和关闭阀门。 开关将螺线管电耦合到电池以激活螺线管以使阀门移动。 本文公开的开关包括温度传感器和发动机运行传感器。 只要发动机尚未运行，当温度传感器检测到发动机温度在预定范围内时，开关即可关闭。

公开(公告)号：US4347821A

公开(公告)日：1982-09-07

申请号：US185436

申请日：1980-09-09

申请人： Masaaki Saito

发明人： Masaaki Saito

IPC分类号： F02D41/14 ,  F02D35/00 ,  F02M7/12 ,  F02M7/24 ,  F02M11/00 ,  F02B3/00 ,  F02B33/00 ,  F02B75/10

CPC分类号： F02M7/12 ,  F02D35/0061 ,  F02M7/24

摘要： A system for feedback control of the air/fuel mixing ratio in an internal combustion engine equipped with a carburetor. The control system has an air/fuel ratio detector of a gas sensor type which provides a feedback signal to a control circuit and a rotary valve which is operated by a stepping motor responsive to a control pulse signal produced by the control circuit to regulate the fuel feed rate so as to nullify a deviation of the detected actual air/fuel ratio from a preset air/fuel ratio. The control system may include two auxiliary air-admitting passages respectively connected to a main fuel passage and a slow fuel passage in the carburetor, and in this case the single rotary valve is designed and arranged so as to simultaneously control the admission of air into both of the two auxiliary air-admitting passages.

摘要翻译： 具有化油器的内燃机中的空气/燃料混合比的反馈控制系统。 控制系统具有气体传感器类型的空气/燃料比检测器，其向控制电路提供反馈信号，以及响应于由控制电路产生的控制脉冲信号而由步进电机操作的旋转阀，以调节燃料 进给速度，以便使检测到的实际空气/燃料比与预设空气/燃料比的偏差无效。 控制系统可以包括分别连接到化油器的主燃料通道和缓慢燃料通道的两个辅助进气通道，在这种情况下，单个旋转阀被设计和布置成同时控制空气进入两者 的两个辅助空气通道。

公开(公告)号：US4314535A

公开(公告)日：1982-02-09

申请号：US150774

申请日：1980-05-19

申请人： Yuzu Takeuchi ,  Shigetaka Takada ,  Toshiharu Morino

发明人： Yuzu Takeuchi ,  Shigetaka Takada ,  Toshiharu Morino

IPC分类号： F02D35/00 ,  F02M7/17 ,  F02M7/24 ,  F02M7/28 ,  F02B33/00 ,  F02M7/00

CPC分类号： F02M7/24 ,  F02D35/0061 ,  F02M7/17

摘要： A feedback type variable venturi carburetor in which the negative pressure regulated by the variable venturi at a constant level is supplied to a solenoid valve which is opened and closed at a frequency of 5-30 Hz and whose open-close time ratio is controlled in accordance with the signal from exhaust gas sensor to control the vacuum pressure applied to a diaphragm chamber of an air-bleed flow control means thereby controlling the air-fuel ratio of the mixture at an optimum level. This invention obviates the use of a regulator for regulating the negative pressure from the intake manifold and precludes the drawbacks experienced with conventional carburetors, such as the slow response in the feedback control caused when the main fuel system and the idling system of the conventional carburetor are switched over, and the unstable supply of fuel when the fuel begins to be delivered from the main fuel system.

摘要翻译： 一种反馈型可变文丘里化油器，其中由可变文丘里管调节的负压恒定地供应到电磁阀，该电磁阀以5-30Hz的频率打开和关闭，并且其开闭时间比率根据 利用来自废气传感器的信号来控制施加到排气流量控制装置的隔膜室的真空压力，从而将混合物的空燃比控制在最佳水平。 本发明避免了使用调节器来调节来自进气歧管的负压，并且排除了常规化油器所遇到的缺陷，例如当主燃料系统和常规化油器的空转系统为 当燃油开始从主燃料系统输送时，燃料供应不稳定。

公开(公告)号：US4181108A

公开(公告)日：1980-01-01

申请号：US875710

申请日：1978-02-06

申请人： Francesco Bellicardi

发明人： Francesco Bellicardi

IPC分类号： F02D35/00 ,  F02M3/09 ,  F02M7/24 ,  F02M11/00

CPC分类号： F02M3/09 ,  F02D35/0061 ,  F02M7/24

摘要： The system is comprised of an electromagnetically operated valve for controlling the supply of air to the main and idle ducts of each carburetor stage to vary the fuel-air mixture in response to a signal from an oxygen concentration probe disposed upstream of the catalytic converter in the exhaust system of an internal combustion engine. The device is mounted on the vehicle structure rather than the engine and is comprised of a rotary cam disposed in operative relation with the plurality of metering valves to control the air supply from a single conduit leading from the air filter to a plurality of conduits leading to the various carburetor ducts.

摘要翻译： 该系统包括电磁操作阀，用于控制向每个化油器级的主管道和空转管道供应空气，以响应于位于催化转化器上游的氧浓度探测器的信号来改变燃料 - 空气混合物 内燃机的排气系统。 该装置安装在车辆结构而不是发动机上，并且包括与多个计量阀有效关系地设置的旋转凸轮，以控制从空气过滤器引导到单个管道的空气供应，导管通向多个导管 各种化油器管道。

公开(公告)号：US20020112473A1

公开(公告)日：2002-08-22

申请号：US10124338

申请日：2002-04-18

申请人： Honda Giken Kogyo Kabushiki Kaisha

发明人： Hiroyuki Yoshida ,  Toyokazu Kawasaki ,  Yoshihiko Fukuda

IPC分类号： F01N003/10 ,  F01N003/00

CPC分类号： F02M23/04 ,  F01N13/008 ,  F01N2590/021 ,  F02B61/045 ,  F02D35/0061 ,  F02D41/1454 ,  F02D41/1456 ,  F02M7/24 ,  Y02T10/146

摘要： In an engine intake A/F ratio control system in an outboard engine system, a secondary air passage (P) for supplying secondary air for regulating the A/F ratio of an air-fuel mixture is connected to a carburetor (33) in an intake system of an engine (E), and a duty control valve (68) is connected to the secondary air passage (P). A duty control unit (92) is connected to the duty control valve (68) for controlling the duty ratio of a pulse applied to a coil (76) of the duty control valve (68), and an LAF sensor (94) is mounted to an exhaust system for detecting an A/F ratio of an exhaust gas to input a detection signal proportional to the A/F ratio of the exhaust gas to the duty control unit (92). Thus, in any of a case when the tolerance of the purifying rate of the catalytic converter is set relatively widely with an engine output taken into consideration to a certain extent, and a case when the set range is shifted to a rich side of the A/R ratio with the engine output taken into serious consideration, the A/F ratio of the exhaust gas can be controlled properly to a desired target value.

摘要翻译： 在舷外发动机系统的发动机进气A / F比控制系统中，将用于调节空气 - 燃料混合物的A / F比的二次空气的二次空气通路（P）连接到化油器（33） 发动机（E）的进气系统和工作控制阀（68）连接到二次空气通路（P）。 负载控制单元（92）连接到占空比控制阀（68），用于控制施加到占空比控制阀（68）的线圈（76）的脉冲的占空比，并且安装LAF传感器（94） 涉及一种用于检测排气的A / F比以输出与排气的A / F比与占空比控制单元（92）成比例的检测信号的排气系统。 因此，在将催化转化器的净化率的公差设定为相当广泛的情况下，在一定程度上考虑发动机输出的情况下，以及当设定范围向A的浓侧偏移时 / R比，引擎输出考虑在内，可以将排气的A / F比适当地控制到期望的目标值。

公开(公告)号：US5575268A

公开(公告)日：1996-11-19

申请号：US562193

申请日：1995-11-22

申请人： Kenichi Hirano ,  Takashi Namari ,  Shinichi Nemoto

发明人： Kenichi Hirano ,  Takashi Namari ,  Shinichi Nemoto

IPC分类号： F02M13/06 ,  F02D35/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  F02D45/00 ,  F02M1/04 ,  F02M3/09 ,  F02M7/24 ,  F02M7/28 ,  F02D41/00 ,  F02M23/00 ,  F02M25/00

CPC分类号： F02D35/0061 ,  F02M1/046 ,  F02M3/09 ,  F02M7/28

摘要： An air-fuel ratio control system for an internal combustion engine including a carburetor having a main fuel system, a slow fuel system, a main bleed air passage leading to the main fuel system a main bleed air control passage leading to the main fuel system, a slow bleed air passage leading to the slow fuel system, and a slow bleed air control passage leading to the slow fuel system, and a valve for controlling the amount of bleed air supplied through the main and slow bleed air control passages. An electronic control unit controls the operation of the valve and is capable of carrying out a feed-back control for controlling the operation of the valve on the basis of a signal from the oxygen sensor so as to bring the air-fuel ratio into a theoretical value, and which determines a control value in such a manner that a feed-back control value is learned and stored to provide a learned value which is substantially constant with respect to fuel of a constant calorific value, and the stored learned value is reflected to a next control value. Thus, it is possible to perform a prompt and stable control of air-fuel ratio in accordance with a variation in calorific value of fuel and to stably and finely vary the amount of bleed air.

摘要翻译： 一种用于内燃机的空燃比控制系统，其包括具有主燃料系统，缓慢燃料系统，通向主燃料系统的主排气通道的化油器，通向主燃料系统的主排气控制通道， 通向缓慢燃料系统的缓慢放气通道，以及通向缓慢燃料系统的缓慢放气控制通路，以及用于控制通过主放气控制通道和缓慢排气控制通道供给的排气量的阀。 电子控制单元控制阀的操作，并且能够基于来自氧传感器的信号执行用于控制阀的操作的反馈控制，以使空燃比成为理论 值，并且以这样的方式确定控制值，使得反馈控制值被学习和存储以提供关于恒定热值的燃料基本上恒定的学习值，并且存储的学习值被反映到 下一个控制值。 因此，可以根据燃料的发热量的变化来执行对空燃比的迅速和稳定的控制，并且稳定且精细地改变排出气体的量。

公开(公告)号：US4465048A

公开(公告)日：1984-08-14

申请号：US333223

申请日：1981-12-21

申请人： Takuro Morozumi ,  Mitsuo Nakamura ,  Masaaki Ohgami ,  Ryuji Kataoka

发明人： Takuro Morozumi ,  Mitsuo Nakamura ,  Masaaki Ohgami ,  Ryuji Kataoka

IPC分类号： F02D35/00 ,  F02D41/14 ,  F02D41/34 ,  F02M7/24

CPC分类号： F02D41/345 ,  F02D35/0061 ,  F02D41/1408 ,  F02D41/1474 ,  Y02T10/44

摘要： An air-fuel ratio control system for an internal combustion engine comprises an induction passage, a carburetor, an on-off type electromagnetic valve for correcting the air-fuel ratio of the air-fuel mixture supplied to the carburetor, an O.sub.2 -sensor for detecting oxygen concentration of exhaust gases, and a feedback control circuit responsive to the output of the O.sub.2 -sensor for producing pulses for driving said electromagnetic valve for correcting the air-fuel ratio.An engine speed detecting circuit is provided for producing an output signal which varies with the engine speed; and a frequency changing circuit is provided to be responsive to the output signal of the engine speed detecting for changing the frequency of the pulses whereby the electromagnetic valve may be prevented from resonating with the vibration of the engine and with the pulsations of induced air.

摘要翻译： 用于内燃机的空燃比控制系统包括：进气通道，化油器，用于校正供给到化油器的空气燃料混合物的空燃比的开关型电磁阀;用于 检测废气的氧浓度，以及响应于所述O2传感器的输出的反馈控制电路，用于产生用于驱动所述电磁阀的脉冲以校正所述空燃比。 发动机转速检测电路用于产生随发动机转速而变化的输出信号; 并且提供频率改变电路以响应于用于改变脉冲频率的发动机转速检测的输出信号，从而可以防止电磁阀与发动机的振动和感应空气的脉动共振。

公开(公告)号：US4370960A

公开(公告)日：1983-02-01

申请号：US204252

申请日：1980-11-05

申请人： Kazutoshi Otsuka

发明人： Kazutoshi Otsuka

IPC分类号： F02D41/14 ,  F02D21/10 ,  F02D31/00 ,  F02D35/00 ,  F02D41/16 ,  F02M3/07 ,  F02M23/04 ,  F02M3/00

CPC分类号： F02M3/07 ,  F02D31/005 ,  F02D35/0061 ,  F02D2011/102

摘要： An idle control system for an automobile internal combustion engine includes an idle control unit for controlling the operation of an electromagnetically operated actuator. While the engine has a combustible mixture intake passage leading to the engine and a throttle valve operatively positioned inside the mixture intake passage for controlling the flow of a combustible air-fuel mixture towards the engine, the actuator is utilized to adjust either the effective cross sectional area of a bypass air passage leading from the air source to the mixture intake passage at a position downstream of the throttle valve or the opening of the throttle valve, to control the engine speed during idling to a predetermined value.

摘要翻译： 用于汽车内燃机的怠速控制系统包括用于控制电磁操作致动器的操作的怠速控制单元。 当发动机具有通向发动机的可燃混合物进气通道和可操作地定位在混合物进气通道内部的节流阀，用于控制可燃空气 - 燃料混合物朝向发动机的流动时，致动器用于调节有效横截面 在节气门下游的位置或节流阀的开口处从空气源引导到混合物进气通道的旁通空气通道的面积，以将空转期间的发动机转速控制在预定值。

公开(公告)号：US4073274A

公开(公告)日：1978-02-14

申请号：US630802

申请日：1975-11-11

申请人： Masaaki Saito

发明人： Masaaki Saito

IPC分类号： F02D3/00 ,  F02D35/00 ,  F02M7/10 ,  F15C1/14 ,  F02M59/10

CPC分类号： F02M7/106 ,  F02D35/0061 ,  F15C1/14

摘要： An air-fuel metering system employs a fluidic element which is circuited in such a manner that fuel supplied to the engine induction passage is varied not only to the venturi vacuum as modified by an output signal from an exhaust gas sensor placed in flow communication with the exhaust gases from the engine.

摘要翻译： 空气燃料计量系统采用流体元件，该流体元件以这样的方式被循环，使得供应到发动机进气通道的燃料不仅改变为文丘里管真空度，而是通过与排放气体传感器流体连通的排气传感器的输出信号 来自发动机的废气。

公开(公告)号：US06962047B2

公开(公告)日：2005-11-08

申请号：US10124338

申请日：2002-04-18

申请人： Hiroyuki Yoshida ,  Toyokazu Kawasaki ,  Yoshihiko Fukuda

发明人： Hiroyuki Yoshida ,  Toyokazu Kawasaki ,  Yoshihiko Fukuda

IPC分类号： F01N13/00 ,  F01N99/00 ,  F02B61/04 ,  F02D35/00 ,  F02D41/14 ,  F02M7/00 ,  F02M7/24 ,  F02M23/04 ,  F01N3/10

CPC分类号： F02M23/04 ,  F01N13/008 ,  F01N2590/021 ,  F02B61/045 ,  F02D35/0061 ,  F02D41/1454 ,  F02D41/1456 ,  F02M7/24 ,  Y02T10/146

摘要： In an engine intake A/F ratio control system in an outboard engine system, a secondary air passage (P) for supplying secondary air for regulating the A/F ratio of an air-fuel mixture is connected to a carburetor (33) in an intake system of an engine (E), and a duty control valve (68) is connected to the secondary air passage (P). A duty control unit (92) is connected to the duty control valve (68) for controlling the duty ratio of a pulse applied to a coil (76) of the duty control valve (68), and an LAF sensor (94) is mounted to an exhaust system for detecting an A/F ratio of an exhaust gas to input a detection signal proportional to the A/F ratio of the exhaust gas to the duty control unit (92). Thus, in any of a case when the tolerance of the purifying rate of the catalytic converter is set relatively widely with an engine output taken into consideration to a certain extent, and a case when the set range is shifted to a rich side of the A/R ratio with the engine output taken into serious consideration, the A/F ratio of the exhaust gas can be controlled properly to a desired target value.

摘要翻译： 在舷外发动机系统的发动机进气A / F比控制系统中，将用于调节空气 - 燃料混合物的A / F比的二次空气的二次空气通路（P）连接到化油器（33） 发动机（E）的进气系统和工作控制阀（68）连接到二次空气通路（P）。 负载控制单元（92）连接到占空比控制阀（68），用于控制施加到占空比控制阀（68）的线圈（76）的脉冲的占空比，并且安装LAF传感器（94） 涉及一种用于检测排气的A / F比以输出与排气的A / F比与占空比控制单元（92）成比例的检测信号的排气系统。 因此，在将催化转化器的净化率的公差设定为相当广泛的情况下，在一定程度上考虑了发动机输出的情况下，以及当设定范围向A的浓侧偏移时 / R比，引擎输出考虑在内，可以将排气的A / F比适当地控制到期望的目标值。