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21. 发明授权

US4375211A Air-fuel ratio control system 失效
标题翻译：空燃比控制系统
公开(公告)号：US4375211A
公开(公告)日：1983-03-01
申请号：US221463
申请日：1980-12-30
申请人： Yoshiaki Ohara , Makoto Shikata
发明人： Yoshiaki Ohara , Makoto Shikata
IPC分类号： F02M11/00 , F02D41/14 , F02M7/24
CPC分类号： F02D41/1491 , F02D41/1489
摘要： A system for controlling air-fuel ratio for an internal combustion engine having a two-barrel carburetor. An electronic controller compares the output signal of an O.sub.2 sensor with a reference corresponding to stoichiometry and for operating on-off electromagnetic valve(s) for controlling the air-fuel ratio to a value approximately equal to the stoichiometric air-fuel ratio. A constant signal generating circuit is selectively connected to the electronic controller. An engine operation detector is provided for detecting the transition from a heavy load condition to light load condition for producing a signal. A switching circuit operatively connects the constant signal generating circuit to the electronic controller for providing a fixed duty ratio of the valve, and renders the electronic controller non-responsive to the output of the O.sub.2 sensor. A switch actuating circuit is provided to actuate the switch by the output signal of the engine operation detector for a predetermined period. Thus, the on-off electromagnetic valve is operated at a small duty ratio after the heavy load condition for a predetermined period.
摘要翻译：一种用于控制具有双桶化油器的内燃机的空燃比的系统。电子控制器将O2传感器的输出信号与对应于化学计量的参考值进行比较，以及用于操作开关电磁阀，以将空燃比控制为大致等于理论空燃比的值。恒定信号发生电路选择性地连接到电子控制器。提供一种发动机操作检测器，用于检测从重负载状态到用于产生信号的轻负载状态的转变。开关电路将恒定信号发生电路可操作地连接到电子控制器，以提供阀的固定占空比，并使电子控制器不响应于O2传感器的输出。提供开关致动电路以通过发动机操作检测器的输出信号在预定时间段内致动开关。因此，开关电磁阀在重负载条件下以小的占空比工作一段规定的时间。

22. 发明授权

US4371479A Variable venturi carburetor 失效
标题翻译：可变文丘里化油器
公开(公告)号：US4371479A
公开(公告)日：1983-02-01
申请号：US304914
申请日：1981-09-23
申请人： Norihiko Nakamura , Takashi Kato
发明人： Norihiko Nakamura , Takashi Kato
IPC分类号： F02M7/17 , F02M7/24 , F02M19/04 , F02M9/06
CPC分类号： F02M19/04 , F02M7/17 , Y10S251/903 , Y10S261/38
摘要： A variable venturi carburetor in which a biasing spring urges a metering needle to contact the metering jet during low air-intake operating conditions and including an expanded portion formed at the front end of the metering needle which is loosely contained in a large bore portion of a well during low air-intake operating conditions and which engages a small bore portion of the well during high air intake operating conditions to center the metering needle in the metering jet for maintaining bleed sensitivity constant while the amount of bleed air varies.
摘要翻译：一种可变文丘里化油器，其中偏压弹簧在低空气进入操作条件期间推动计量针与计量射流接触，并且包括形成在计量针的前端处的膨胀部分，其宽松地容纳在在低空气进入操作条件期间，并且在高空气进入操作条件期间接合井的小孔部分以将计量针定位在计量喷嘴中，以在排气量变化的同时保持放气灵敏度恒定。

23. 发明授权

US4361124A System for controlling air-fuel ratio 失效
标题翻译：空燃比控制系统
公开(公告)号：US4361124A
公开(公告)日：1982-11-30
申请号：US174380
申请日：1980-08-01
申请人： Hiroyuki Nakamura
发明人： Hiroyuki Nakamura
IPC分类号： F02D41/14 , F02M7/24 , F02M7/00
CPC分类号： F02D41/149
摘要： An electronic control system for controlling the air-fuel ratio for an internal combustion engine comprising an on-off type electromagnetic valve for correcting the air-fuel ratio of the air-fuel mixture supplied by an air-fuel mixture supply device, a comparing circuit for comparing the output signal of a detector with a reference value, an integration circuit connected to the comparing circuit, a pulse generator, and a comparator for producing pulses for driving the on-off type electromagnetic valve from output signals of the integration circuit and of the pulse generator for controlling the air-fuel ratio to a value substantially equal to the stoichiometric air-fuel ratio. A first converter converts the operation of the throttle valve to an electric quantity output, a second converter converts the prevailing ambient atmospheric pressure to another electric quantity output. Further, there is provided switches actuated by the output signals of the first converter for rendering the integration circuit non-responsive to the output of the detector and responsive to the output of the second converter.
摘要翻译：一种用于控制内燃机的空燃比的电子控制系统，包括用于校正由空气 - 燃料混合物供应装置供应的空气燃料混合物的空燃比的开 - 关型电磁阀，比较电路用于将检测器的输出信号与参考值进行比较，连接到比较电路的积分电路，脉冲发生器和用于从积分电路的输出信号产生用于驱动开关型电磁阀的脉冲的比较器，以及脉冲发生器，用于将空燃比控制到基本上等于理论空燃比的值。第一转换器将节气门的操作转换为电量输出，第二转换器将主要的环境大气压力转换为另一电量输出。此外，提供由第一转换器的输出信号驱动的开关，用于使积分电路不响应于检测器的输出并响应于第二转换器的输出。

24. 发明授权

US4349877A Electronically controlled carburetor 失效
标题翻译：电子控制化油器
公开(公告)号：US4349877A
公开(公告)日：1982-09-14
申请号：US137490
申请日：1980-04-04
申请人： Yoshishige Oyama , Hiroshi Kuroiwa
发明人： Yoshishige Oyama , Hiroshi Kuroiwa
IPC分类号： F02M7/12 , F02B1/04 , F02D35/00 , F02D37/02 , F02D41/18 , F02M3/09 , F02M7/133 , F02M7/24 , F02M7/28 , F02M19/08 , F02M7/18 , G06F15/20
CPC分类号： F02D41/18 , F02D35/00 , F02D37/02 , F02M19/086 , F02M3/09 , F02M7/133 , F02M7/24 , F02B1/04
摘要： An electronic controlled carburetor includes sensors for sensing engine speed, intake air pressure and water temperature. An arithmetic unit digitally processes output signals from the sensors and generates signals for controlling the air-fuel ratio of a mixture supplied to an engine on the basis of the output signals from the sensors. The carburetor system includes means for sensing atmospheric pressure and intake air temperature, and means for adjusting at least one of the amount of intake air of the engine and the amount of fuel. The arithmetic unit digitally processes the output signals from the atmospheric pressure and the intake air temperature sensing means to thereby produce a signal representing air density change and automatically controls at least one of the amount of intake air and fuel on the basis of the air density changing signal, to thereby control the air-fuel ratio of the mixture with higher accuracy.
摘要翻译：电子控制化油器包括用于感测发动机转速，进气压力和水温的传感器。算术单元以数字方式处理来自传感器的输出信号，并根据来自传感器的输出信号产生用于控制提供给发动机的混合物的空燃比的信号。化油器系统包括用于感测大气压力和进气温度的装置，以及用于调节发动机的进气量和燃料量中的至少一个的装置。算术单元对来自大气压和进气温度检测装置的输出信号进行数字处理，从而产生表示空气密度变化的信号，并基于空气密度变化自动控制进气量和燃料量中的至少一个信号，从而以更高的精度控制混合物的空燃比。

25. 发明授权

US4341190A Air-fuel ratio control device of an internal combustion engine 失效
标题翻译：内燃机的空燃比控制装置
公开(公告)号：US4341190A
公开(公告)日：1982-07-27
申请号：US237949
申请日：1981-02-25
申请人： Norikatsu Ishikawa , Haruyuki Obata , Hidemi Onaka , Takao Tate , Toshio Tanahashi , Isamu Hagino
发明人： Norikatsu Ishikawa , Haruyuki Obata , Hidemi Onaka , Takao Tate , Toshio Tanahashi , Isamu Hagino
IPC分类号： F02M3/09 , F02M7/24 , F02M7/18
CPC分类号： F02M3/09 , F02M7/24
摘要： An air-fuel ratio control device of an internal combustion engine having a carburetor. An air bleed passage is connected to a fuel outflow passage of the carburetor, and an electromagnetic control valve is arranged in the air bleed passage. The control valve is controlled by the detecting signal of an oxygen concentration detector arranged in the exhaust passage so that the air-fuel ratio of a mixture fed into the cylinder of an engine becomes equal to the stoichiometric air-fuel ratio. After the completion of the warm-up of an engine, the opening area of the control valve is maintained within a fixed range. Before the completion of the warm-up of an engine, the opening degree of the control valve becomes larger than the above-mentioned fixed range.
摘要翻译：具有化油器的内燃机的空燃比控制装置。排气通道连接到化油器的燃料流出通道，并且在排气通道中布置有电磁控制阀。控制阀由布置在排气通道中的氧浓度检测器的检测信号控制，使得供给到发动机气缸中的混合物的空燃比变得等于理论空燃比。在发动机预热完成之后，控制阀的开口面积保持在一定的范围内。在发动机预热完成之前，控制阀的开度大于上述固定范围。

26. 发明授权

US4337746A System for feedback control of air/fuel ratio in internal combustion engine 失效
标题翻译：内燃机空燃比反馈控制系统
公开(公告)号：US4337746A
公开(公告)日：1982-07-06
申请号：US161406
申请日：1980-06-20
申请人： Kenji Masaki
发明人： Kenji Masaki
IPC分类号： F02B1/04 , F02D41/14 , F02M7/24 , G01N27/26 , G05D21/00 , G01N27/58 , F02D3/04 , F02D33/00 , G01N27/46
CPC分类号： F02D41/1475 , F02D41/1441 , F02D41/1476 , F02M7/24 , F02B1/04 , F02D41/1456
摘要： A system for feedback control of air/fuel ratio in an internal combustion engine operated with a nonstoichiometric air-fuel mixture. The control system includes two oxygen-sensitive air/fuel ratio sensors which are of the concentration cell type having a solid electrolyte layer provided with two electrode layers and both disposed in an exhaust passage substantially at the same section. The first sensor is supplied with a constant DC current to cause migration of oxygen ions through the solid electrolyte layer and exhibits a slope output characteristic when a lean mixture or a rich mixture is supplied to the engine, depending on the direction of flow of the current. The second sensor exhibits on-off type output characteristic and can discriminate between a lean mixture and a rich mixture. A control circuit to produce a fuel feed rate control signal based on the output of the first sensor includes a discriminating means for ascertaining whether the output of the first sensor is truly attributed to the slope output characteristic with reference to the output of the second sensor.
摘要翻译：用非化学计量空气 - 燃料混合物操作的内燃机中的空气/燃料比的反馈控制系统。控制系统包括两个浓度电池类型的氧敏感空气/燃料比传感器，其具有设置有两个电极层的固体电解质层，并且均布置在基本上位于相同部分的排气通道中。第一传感器被提供恒定的直流电流，以使氧离子迁移通过固体电解质层，并且当将稀混合物或富混合物供应到发动机时，具有斜率输出特性，这取决于电流的流动方向。第二传感器具有开关型输出特性，并且可以区分贫混合物和富混合物。基于第一传感器的输出产生燃料供给速度控制信号的控制电路包括鉴别装置，用于根据第二传感器的输出确定第一传感器的输出是否真实地归因于斜率输出特性。

27. 发明授权

US4320731A Carburetor air bleed control system 失效
标题翻译：化油器排气控制系统
公开(公告)号：US4320731A
公开(公告)日：1982-03-23
申请号：US109731
申请日：1980-01-04
申请人： Paul E. Braun , Joseph F. Lopiccola , Richard J. Freismuth
发明人： Paul E. Braun , Joseph F. Lopiccola , Richard J. Freismuth
IPC分类号： F02M3/09 , F02M7/24 , F02M7/28 , F02M7/00
CPC分类号： F02M7/24 , F02M3/09
摘要： A free standing air bleed control module is connected to an automotive downdraft type carburetor only by tubing so that it can be located in any convenient position in the engine compartment and yet provide a complete air bleed function to the carburetor fuel lines without a new casting for the carburetor; the module containing a bleed air metering valve movable by a servo to control the flow of bleed air into the fuel lines of the carburetor, the servo being controlled by a computer sensitive to engine operating conditions to schedule the bleed of air at the desired time.
摘要翻译：独立式排气控制模块仅通过管道连接到汽车底吹式化油器，使得其可以位于发动机舱中的任何方便的位置，并且为化油器燃料管线提供完全的排气功能，而不需要新的铸件化油器该模块包含可通过伺服机构移动的排气计量阀，以控制排放到化油器燃料管线中的排放空气的流量，该伺服系统由对发动机操作条件敏感的计算机控制，以调度所需时间内的空气排放。

28. 发明授权

US4276745A Exhaust gas control apparatus 失效
标题翻译：废气控制装置
公开(公告)号：US4276745A
公开(公告)日：1981-07-07
申请号：US56759
申请日：1979-07-12
申请人： Shigetaka Takada , Kazumichi Naruse , Yukihiro Watanabe
发明人： Shigetaka Takada , Kazumichi Naruse , Yukihiro Watanabe
IPC分类号： F01N3/22 , F01N3/32 , F02M7/24 , F02M37/06 , F04B45/04 , F01N3/10
CPC分类号： F01N3/32 , F04B45/04 , Y02T10/20
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。

29. 发明授权

US4275017A Ring controlled variable venturi downdraft carburetor 失效
标题翻译：环控变量文丘里下流式化油器
公开(公告)号：US4275017A
公开(公告)日：1981-06-23
申请号：US88952
申请日：1979-10-29
申请人： Ralph T. Rollins
发明人： Ralph T. Rollins
IPC分类号： F02M7/28 , F02M9/133 , F02M7/24
CPC分类号： F02M7/28 , F02M9/133 , Y10S261/56
摘要： A variable Venturi condition responsive carburetor wherein a control ring, movable in response to engine operating conditions regulates the amount of air that is mixed with incoming fuel as it passes through metering tubes to provide for total air fuel mixing prior to its being introduced into the combustion chambers of an internal combustion engine. The control ring also regulates the amount of fuel supplied through the metering stem, provides a means for providing automatic compensation for fuel mix changes necessary due to changes in atmospheric pressure such as will occur during altitude changes and regulates flow through a demand fuel circuit. An arrangement of fixed and movable Venturi elements is used to vary the fuel flow through the carburetor in response to the throttle linkage manipulation.
摘要翻译：可变的文丘里条件响应化油器，其中响应于发动机操作条件可移动的控制环调节当进入的燃料通过计量管时与其混合的空气的量，以在其被引入燃烧之前提供总的空气燃料混合内燃机室。控制环还调节通过计量杆供应的燃料量，为提供由于大气压力变化所必需的燃料混合变化提供了自动补偿的方法，例如在高度变化期间将发生并调节通过需求燃料回路的流量。固定和可移动的文氏管元件的布置被用于响应于节气门连杆操纵来改变通过化油器的燃料流。

30. 发明授权

US4250855A Electronic control system for carburetor 失效
标题翻译：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。

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