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1. 发明授权

US4699110A Fuel supply system 失效
标题翻译：燃油供应系统
公开(公告)号：US4699110A
公开(公告)日：1987-10-13
申请号：US854411
申请日：1986-04-21
申请人： Hiroshi Iwano , Tadahiro Yamamoto , Tadaki Ota , Hiroshi Ogane , Eiichi Ohnishi , Atsushi Yonezawa
发明人： Hiroshi Iwano , Tadahiro Yamamoto , Tadaki Ota , Hiroshi Ogane , Eiichi Ohnishi , Atsushi Yonezawa
IPC分类号： F02M11/02 , F02M13/04 , F02M69/04 , F02M69/08 , F02M51/00
CPC分类号： F02M69/08 , F02M11/02 , F02M13/046 , F02M69/041
摘要： A primary passage and a secondary passage in a parallel relation to each other are disposed between an air cleaner and a branch passage collecting portion of an intake manifold. The primary passage is smaller in diameter than the secondary passage and has at the downstream end thereof a laval nozzle through which air flows at the speed of sound even under low-speed low-load engine operating conditions. The laval nozzle is connected to a carburetion chamber which is elongated straightly in the direction downstream of the laval nozzle. A fuel injection valve is disposed in the primary passage at a place upstream of the laval nozzle. A pressure control valve is adapted so that a vacuum higher than a predetermined value is developed in the carburetion chamber at any time. A primary throttle valve and a secondary throttle valve are interconnected so that the secondary throttle valve is held closed unless the primary throttle valve is fully open. The primary throttle valve is movable in response to an engine operating condition.
摘要翻译：在空气滤清器和进气歧管的分支通道收集部分之间设置有彼此平行关系的主通道和次通道。主通道的直径比二次通道的直径小，并且在其下游端有一个拉链喷嘴，即使在低速低负载发动机运行条件下，空气以声速流过。喷泉喷嘴连接到在油槽喷嘴的下游方向上直线延伸的化油室。燃料喷射阀设置在主通道中，在喷嘴喷嘴的上游位置。压力控制阀适于在任何时候在化油室中产生高于预定值的真空。主节流阀和辅助节流阀相互连接，使得次级节流阀保持关闭，除非主节流阀完全打开。主节流阀可响应于发动机工作状态而运动。

2. 发明授权

US4957087A Apparatus for controlling engine operable on gasoline/alcohol fuel blend 失效
标题翻译：用于控制可在汽油/醇燃料混合物上操作的发动机的装置
公开(公告)号：US4957087A
公开(公告)日：1990-09-18
申请号：US421566
申请日：1989-10-11
申请人： Tadaki Ota
发明人： Tadaki Ota
IPC分类号： F02D41/02 , F02D19/08 , F02D41/00 , F02D41/14 , F02D41/22 , F02D43/00
CPC分类号： F02D41/222 , F02D19/0623 , F02D19/084 , F02D19/087 , F02D41/0025 , F02D41/1441 , F02D2200/0611 , Y02T10/36 , Y02T10/40
摘要： An apparatus for use in an internal combustion engine operable on either of gasoline fuel and gasoline-alcohol fuel blend. The apparatus includes an alcohol concentration sensor for sensing the alcohol concentration of the fuel to be delivered to the engine, and an oxygen sensor sensitive to the oxygen content in exhaust gases discharged from the engine for producing an air/fuel ratio feedback signal. A difference of the air/fuel ratio from the stoichiometric value is calculated based on the air/fuel ratio feedback signal for a closed loop air/fuel ratio control. A correction factor is used to correct the amount of fuel delivered to the engine so as to provide fuel enrichment during high engine load conditions. In the event of failure of the alcohol concentration sensor, the amount of fuel delivered to the engine is determined with the alcohol concentration being set at a predetermined value. When the engine is operating with an effective closed loop air/fuel ratio control after the alcohol concentration is set at the predetermined value, both of the correction factor and the ignition timing are determined based on the calculated air/fuel ratio difference. If the closed loop air/fuel ratio control is clamped after the alcohol concentration is set at the predetermined value, the ignition timing is determined on an assumption that gasoline fuel is delivered to the engine, whereas the correction factor is set to inhibit the fuel enrichment.
摘要翻译：一种用于可在汽油燃料和汽油 - 醇燃料混合物中的任何一种操作的内燃机中的装置。该装置包括用于感测要输送到发动机的燃料的醇浓度的酒精浓度传感器，以及对从发动机排出的排气中的氧含量敏感的氧传感器，用于产生空/燃比反馈信号。基于用于闭环空燃比控制的空燃比反馈信号计算空气/燃料比与化学计量值的差。校正因子用于校正输送到发动机的燃料量，以便在高发动机负荷条件下提供燃料浓缩。在酒精浓度传感器发生故障的情况下，以酒精浓度设定为预定值来确定输送到发动机的燃料量。在酒精浓度设定为规定值后，当发动机以有效的闭环空燃比控制运转时，基于计算出的空气/燃料比差来确定校正系数和点火正时两者。如果在酒精浓度设定为预定值之后闭合闭环空气/燃料比控制，则假定汽油燃料被输送到发动机，并且将校正因子设定为抑制燃料浓缩。

3. 发明授权

US4276238A Carburetor with automatic choking and acceleration device 失效
标题翻译：化油器具有自动窒息和加速装置
公开(公告)号：US4276238A
公开(公告)日：1981-06-30
申请号：US84156
申请日：1979-10-12
申请人： Katsushi Yoshikawa , Masaaki Saito , Tadaki Ota , Mitsumasa Inoue
发明人： Katsushi Yoshikawa , Masaaki Saito , Tadaki Ota , Mitsumasa Inoue
IPC分类号： F02M1/04 , F02M17/09 , F02M1/10
CPC分类号： F02M1/046 , F02M17/09
摘要： A carburetor is disclosed of the variable venturi type, which has a bypass passage bypassing the throttle valve, which is controlled during starting and warming up of the engine by a piston which adjusts its flow resistance, and which is urged against the biasing action of a spring by the vacuum suction downstream of the throttle valve. The maximum open position of this piston is controlled by a heat-sensitive element which advances this position in the direction of closing the bypass passage as the engine warms up, until it is completely closed when the engine is warm. Air is fed into a supplier which supplies fuel to the carburetor inlet passage to mix with the fuel supplied thereby in an amount which varies from a minimum when the vacuum downstream of the throttle valve is minimum to a maximum when the vacuum downstream of the throttle valve is maximum. Further, the amount of fuel supplied by the fuel supplier is adjusted to be greater when the engine temperature is lower than when it is higher. Thereby choking action is provided for a cold engine, and also a function of providing an enriched mixture upon acceleration during warming up is provided.
摘要翻译：公开了一种可变文丘里型的化油器，其具有旁路节气门的旁通通道，该旁路通过调节其流动阻力的活塞在启动和预热发动机期间受到控制，并被抵抗一个弹簧由节流阀下游的真空抽吸。该活塞的最大打开位置由热敏元件控制，该热敏元件随着发动机加热而沿着关闭旁路通道的方向推进该位置，直到发动机温暖时完全关闭。空气被送入供应商，供应者向化油器入口通道供应燃料，以便当节气门下游的真空度最小时，节气门下游的真空最小时，燃料供应量与最小值之间变化。是最大的此外，当发动机温度比较高时燃料供给器供应的燃料量更大。由此，为冷发动机提供窒息作用，并且还提供了在加热期间加速时提供浓缩混合物的功能。

4. 发明授权

US4913099A Fuel injection control apparatus 失效
标题翻译：燃油喷射控制装置
公开(公告)号：US4913099A
公开(公告)日：1990-04-03
申请号：US329223
申请日：1989-03-27
申请人： Tadaki Ota
发明人： Tadaki Ota
IPC分类号： F02D41/02 , F02D41/00 , F02D41/34 , F02D41/36
CPC分类号： F02D41/008 , F02D19/084 , F02D19/087 , F02D41/0025 , F02D2200/0611 , Y02T10/36
摘要： An apparatus for controlling fuel delivery to an internal combustion engine having a plurality of cylinders each having an individual fuel injector. The apparatus comprises a sensor sensitive to an alcohol concentration of the fuel to be delivered to the engine for producing an alcohol concentration signal indicative of a sensed alcohol concentration. The apparatus also includes a control unit responsive to the alcohol concentration signal for controlling the duration of fuel injection from each of the fuel injectors to the corresponding cylinder. The control unit calculates a first time at which fuel injection to the corresponding cylinder is terminated and a second time at which fuel injection to the corresponding cylinder is initiated to ensure that the fuel injection will be terminated at the first time. The first time is varied according to the alcohol concentration.
摘要翻译：一种用于控制燃料输送到具有多个气缸的内燃机的装置，每个气缸都具有单独的燃料喷射器。该装置包括对要输送到发动机的燃料的酒精浓度敏感的传感器，用于产生指示感测到的酒精浓度的酒精浓度信号。该装置还包括响应于酒精浓度信号的控制单元，用于控制从每个燃料喷射器到相应气缸的燃料喷射持续时间。控制单元计算第一次停止对相应气缸的燃料喷射的时间，以及第二次启动对相应气缸的燃料喷射以确保燃料喷射将在第一时间终止。第一次根据酒精浓度而变化。

5. 发明授权

US4276239A Variable air valve carburetor 失效
标题翻译：可变气阀化油器
公开(公告)号：US4276239A
公开(公告)日：1981-06-30
申请号：US86312
申请日：1979-10-19
申请人： Katsushi Yoshikawa , Masaaki Saito , Tadaki Ota , Mitsumasa Inoue
发明人： Katsushi Yoshikawa , Masaaki Saito , Tadaki Ota , Mitsumasa Inoue
IPC分类号： F02M17/08 , F02M17/09 , F02M7/22
CPC分类号： F02M17/09 , Y10S261/38
摘要： A carburetor with a circular air valve, in which the fuel metering needle is connected to a bracket on the downstream face of the air valve.
摘要翻译：具有圆形空气阀的化油器，其中燃料计量针连接到空气阀的下游表面上的支架。

6. 发明授权

US4268462A Variable venturi carburetor 失效
标题翻译：可变文丘里化油器
公开(公告)号：US4268462A
公开(公告)日：1981-05-19
申请号：US110440
申请日：1980-01-08
申请人： Tadaki Ota , Katsushi Yoshikawa , Masaaki Saito
发明人： Tadaki Ota , Katsushi Yoshikawa , Masaaki Saito
IPC分类号： F02M17/08 , F02M3/09 , F02M7/12 , F02M7/22
CPC分类号： F02M7/22 , Y10S261/56 , Y10S261/74
摘要： A variable venturi carburetor is disclosed which includes a mixture conduit having therein a throttle plate, a fixed venturi, and a vacuum sustaining plate for variably opening and closing the throat of the fixed venturi. A first fuel nozzle opens into the mixture conduit at a point on the downstream side of the vacuum sustaining plate. An electromagnetic valve is provided for controlling the amount of fuel drawn from the auxiliary fuel nozzle so that it can vary in accordance with the degree of opening of the vacuum sustaining plate but is held at a level when the degree of opening of the vacuum sustaining plate is over a predetermined level. A second fuel nozzle is provided which opens into the mixture conduit at a point on the upstream of the vacuum sustaining plate for allowing discharge of fuel in amounts proportional to vacuums appearing in the mixture conduit upstream of the vacuum sustaining plate.
摘要翻译：公开了一种可变文丘里化油器，其包括其中具有节流板，固定文丘里管和用于可变地打开和关闭固定文丘里管的喉部的真空维持板的混合管道。第一燃料喷嘴在真空维持板的下游侧的点处通向混合管道。提供一种电磁阀，用于控制从辅助燃料喷嘴抽出的燃料量，使其能够根据真空维持板的开度而变化，但是当真空维持板的打开程度超过预定水平。提供了第二燃料喷嘴，其在真空维持板的上游的点处向混合物管道中打开，以允许排出与真空维持板上游混合管道中出现的真空成正比的燃料。

7. 发明授权

US4394974A Fuel injector valve 失效
标题翻译：燃油喷射阀
公开(公告)号：US4394974A
公开(公告)日：1983-07-26
申请号：US242421
申请日：1981-03-11
申请人： Masaaki Saito , Tadaki Ota
发明人： Masaaki Saito , Tadaki Ota
IPC分类号： F02M51/08 , F02M51/06 , B05B1/30
CPC分类号： F02M51/0632 , F02M2051/08 , Y10S239/90
摘要： A fuel injector valve comprises a main magnetic pole securely disposed within a casing and provided with an electromagnetic coil wound thereon, a valve seat member securely connected to the casing so as to be located opposite to the main magnetic pole tip section, a spherical valve member movably disposed within a valve chamber which is to be filled with fuel, and defined between the main magnetic pole tip section and the valve seat member, and an adapter member securely interposed between the main magnetic pole and the casing to secure the locational relationship therebetween, thereby securely achieving the locating and centering of the main magnetic pole.
摘要翻译：一种燃料喷射阀，包括牢固地设置在壳体内并且设置有卷绕在其上的电磁线圈的主磁极，阀座构件，其牢固地连接到壳体，以与主磁极端部相对地定位，球形阀构件可移动地设置在要填充燃料的阀室内，并且限定在主磁极末端部分和阀座构件之间，以及适当地插入在主磁极和壳体之间的适配器构件，以确保其间的位置关系，从而可靠地实现主磁极的定位和定心。

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