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公开(公告)号：US4335687A
公开(公告)日：1982-06-22
申请号：US160616
申请日：1980-06-18
CPC分类号： F02D41/0087
摘要： An internal combustion engine is disclosed which comprises first and second cylinder units each including at least one cylinder, pulse generator means for generating, in synchronism with engine rotation, a fuel injection pulse signal of pulse width proportional to the rate of air flow to said engine, and first and second fuel supply means responsive to the fuel injection pulse signal for supplying, into the first and second cylinder units, respectively, a controlled amount of fuel corresponding to the duty ratio of the fuel injection pulse signal. Control means is provided for cutting off the fuel injection pulse signal to the second fuel supply means when the engine load is below a reference level increasing with an increase in engine temperature except when the engine speed is below a given level at open throttle conditions.
摘要翻译： 公开了一种内燃机，其包括第一和第二气缸单元，每个气缸单元包括至少一个气缸，脉冲发生器装置，用于与发动机旋转同步地产生与向所述发动机的空气流量成比例的脉冲宽度的燃料喷射脉冲信号 以及响应于燃料喷射脉冲信号的第一和第二燃料供应装置，分别向第一和第二气缸单元提供对应于燃料喷射脉冲信号的占空比的受控量的燃料。 提供控制装置，用于当发动机负载低于基准水平时随着发动机温度升高而将燃料喷射脉冲信号切断到第二燃料供给装置，除非当发动机转速低于开启节气门条件时的给定水平时。
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公开(公告)号：US4344393A
公开(公告)日：1982-08-17
申请号：US161369
申请日：1980-06-20
摘要： An internal combustion engine is disclosed which includes first and second cylinder units each including at least one cylinder, means for cutting off the supply of air and fuel to the second cylinder unit so as to render it inactive when the engine load is below a given value, a three-way catalytic converter for purifying the exhaust from the cylinders, a sensor exposed to the exhaust from the cylinders to provide a signal indicative of the air/fuel ratio at which the engine is operating, and means responsive to the signal from the sensor for controlling the fuel supplied to the engine to maintain the stoichiometric air/fuel ratio. Means is provided for introducing a predetermined amount of air into the second cylinder unit.
摘要翻译： 公开了一种内燃机，其包括每个包括至少一个气缸的第一和第二气缸单元，用于切断向第二气缸单元供应空气和燃料的装置，以便当发动机负载低于给定值时使其不起作用 用于净化来自气缸的排气的三元催化转化器，暴露于来自气缸的排气的传感器以提供指示发动机运转的空燃比的信号，以及响应于来自 传感器，用于控制供应到发动机的燃料以维持理论空燃比。 提供用于将预定量的空气引入第二气缸单元的装置。
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公开(公告)号：US4385600A
公开(公告)日：1983-05-31
申请号：US140665
申请日：1980-04-15
CPC分类号： F02D17/02 , F02D41/0087
摘要： An internal combustion engine is disclosed which includes first and second cylinder units each having at least one cylinder, and a control unit responsive to engine load for rendering the first and second cylinder units active at high load conditions and rendering the second cylinder unit inactive when the engine load is below a predetermined value. A rapid acceleration detector is provided which is responsive to rapid engine acceleration for causing the control unit to render the first and second cylinder units active regardless of the engine load.
摘要翻译： 公开了一种内燃机，其包括每个具有至少一个气缸的第一和第二气缸单元和响应于发动机负载的控制单元，用于使第一和第二气缸单元在高负载条件下起作用，并且当第二气缸单元在 发动机负荷低于预定值。 提供了一种快速加速度检测器，其响应于快速的发动机加速度，以使得控制单元使第一和第二气缸单元活动，而与发动机负载无关。
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公开(公告)号：US4337740A
公开(公告)日：1982-07-06
申请号：US160564
申请日：1980-06-18
CPC分类号： F02D43/00 , F02D17/02 , F02D41/0087
摘要： An internal combustion engine is disclosed which includes active and inactive cylinders, a load detector adapted to provide a low load indicative signal when the engine load is below a predetermined value, first means responsive to the low load indicative signal for cutting off the flow of air to the inactive cylinders, and second means for supplying a controlled amount of fuel into the active and inactive cylinders so as to achieve a somewhat lean air-fuel mixture therein. The second means is responsive to the low load indicative signal for cutting off the supply of fuel to the inactive cylinders and increasing the amount of fuel supplied to the active cylinders so as to achieve a somewhat rich air-fuel mixture therein. Third means is provided for monitoring the oxygen content of the exhaust from the engine to control the second means so that the fuel supplied to the engine is correct to maintain the stoichiometric air/fuel ratio.
摘要翻译： 公开了一种内燃机，其包括主动和非活动气缸，负载检测器，其适于在发动机负载低于预定值时提供低负荷指示信号，第一装置响应于低负荷指示信号以切断空气流 以及第二装置，用于将受控量的燃料供应到主动和非活动气缸中，以便在其中实现稍微偏冷的空气 - 燃料混合物。 第二装置响应于低负荷指示信号，用于切断对非活性气缸的燃料供应，并且增加供应到活动气缸的燃料量，以便在其中实现有些浓的空气 - 燃料混合物。 提供第三装置用于监测来自发动机的排气的氧含量以控制第二装置，使得供应到发动机的燃料是正确的，以维持理论空燃比。
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公开(公告)号：US4249374A
公开(公告)日：1981-02-10
申请号：US2632
申请日：1979-01-11
IPC分类号： F02P19/02 , F02D17/02 , F02D21/08 , F02D41/00 , F02D41/36 , F02M25/07 , F01N3/15 , F02D17/00
CPC分类号： F02D41/0055 , F02D17/02 , F02D41/0087 , F02M26/38 , F02M26/43 , F02M26/57 , Y02T10/47
摘要： Disclosed is a split engine control system wherein the intake manifold is segmented by a shut-off valve into a first chamber portion leading to a first group of cylinders and a second chamber portion leading to a second group of cylinders. During periods of relatively low load, the cylinders of the second group are deactivated and the shut-off valve is closed to isolate the second chamber from the first chamber to cut off air supply to the deactivated cylinders. Exhaust gases are recirculated through the deactivated cylinders so that their pumping loss is minimized. A pressure detector is provided to detect a pressure difference which might develop between the first and second chambers during the partial cylinder operation to control the flow rate of the recirculated gases until the pressure difference reduces substantially to zero.
摘要翻译： 公开了一种分体式发动机控制系统，其中进气歧管由截止阀分段成通向第一组气缸的第一室部分和通向第二组气缸的第二室部分。 在相对较低的负载期间，第二组的气缸被停用，并且截止阀关闭以将第二腔室与第一腔室隔离，以切断对失活气缸的空气供应。 废气通过失活的气瓶再循环，使其泵送损失最小化。 提供压力检测器以检测在部分气缸操作期间可能在第一和第二室之间产生的压力差，以控制再循环气体的流量，直到压力差基本上减小到零。
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6.发明授权Split engine operation with means for discriminating false indication of engine load reduction 失效用于区分发动机负载降低的虚假指示的装置分离发动机运转
公开(公告)号：US4224920A
公开(公告)日：1980-09-30
申请号：US8738
申请日：1979-02-02
CPC分类号： F02D17/02 , F02D41/0087
摘要： A split engine control system includes a load level detector for generating a first signal in response to a relatively high engine load and a second signal in response to a relatively low engine load. A certain of the cylinders of an internal combustion engine is deactivated in response to the second signal to operate the engine on partial cylinders and activated in response to the first signal to permit the engine to operate on full cylinders. A discriminating circuit is connected to the load level detector to disable the second signal when the duration of the latter is smaller than a preset time interval which corresponds to the duration of a false indication of engine load reduction which might occur in response to gear changes during full cylinder operation.
摘要翻译： 分体式发动机控制系统包括负载电平检测器，用于响应于相对较高的发动机负载产生第一信号，响应于较低的发动机负载产生第二信号。 内燃机的一些气缸响应于第二信号被停用，以使发动机在部分气缸上操作并且响应于第一信号被激活以允许发动机在全气缸上操作。 识别电路连接到负载电平检测器以在第二信号的持续时间小于预设的时间间隔时禁用第二信号，该预设时间间隔对应于可能响应于发生变速时发生的发动机负载减小的假指示的持续时间 全缸操作。
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公开(公告)号：US4192278A
公开(公告)日：1980-03-11
申请号：US965994
申请日：1978-12-04
CPC分类号： F02D41/0055 , F02D17/02 , F02D21/08 , F02D41/0087 , F02M26/57 , Y02T10/47 , Y10T477/877
摘要： An internal combustion engine of the type wherein a particular group of engine cylinders are not supplied with air-fuel mixture during light load engine operation, comprises a gas supply device for supplying exhaust gas or fresh air into the particular group of cylinders when not supplied with air-fuel mixture, and a control device for stopping the supply of the exhaust gas or fresh air when a brake pedal is depressed to slow down the speed of a motor vehicle, so that engine brake becomes effective or is improved during light load engine operation.
摘要翻译： 一种内燃机，其特征在于，在轻负载发动机运转期间，特定组的发动机气缸不供应空气 - 燃料混合物，包括用于在不提供废气或新鲜空气的情况下将废气或新鲜空气供应到特定气瓶组中的气体供应装置 空气燃料混合物，以及用于在制动踏板被压下时停止排气或新鲜空气的供应的控制装置，以减慢机动车辆的速度，使得发动机制动在轻负载发动机运转期间变得有效或改善 。
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8.发明授权
公开(公告)号：US4256074A
公开(公告)日：1981-03-17
申请号：US46309
申请日：1979-06-07
申请人： Fukashi Sugasawa , Yukihiro Etoh
发明人： Fukashi Sugasawa , Yukihiro Etoh
IPC分类号： F01N3/20 , F01N3/22 , F01N9/00 , F01N13/02 , F02D17/02 , F02D21/08 , F02D41/02 , F02D41/04 , F02D41/14 , F01N3/15
CPC分类号： F01N3/20 , F01N13/009 , F01N9/00 , F02D17/02 , F02D41/1443 , F01N2430/02 , F01N2430/06 , Y02T10/47
摘要： A control system for a multi-cylinder internal combustion engine comprises a split engine control unit for operating the engine on partial cylinders when reduced engine power can adequately operate the vehicle, and first and second exhaust conduits for directing exhaust gases from first and second group cylinders respectively to a common junction to which a common exhaust conduit is connected for directing the gases to the atmosphere. A first set of an exhaust gas sensor and catalytic converter is disposed in the first conduit to be exposed to the stream of gases exhausted from the second group cylinders which are activated at all times and a second set of an exhaust gas sensor and catalytic converter is disposed in the common conduit to be exposed to the stream of gases exhausted from the first group cylinders directed through the first conduit and to the gases passed through the upstream side catalytic converter in the second conduit. A feedback control circuit is responsive selectively to a signal from the first gas sensor during the partial cylinder operation for correcting the ratio of mixture supplied to the second group cylinders and to a signal from the second gas sensor during the full cylinder operation for correcting the ratio of mixture supplied to all the cylinders.
摘要翻译： 一种用于多气缸内燃机的控制系统，包括用于在减少的发动机功率能够充分地操作车辆时在部分气缸上操作发动机的分体式发动机控制单元，以及用于引导来自第一和第二组气缸的废气的第一和第二排气导管 分别连接到连接有公共排气导管以将气体引导到大气中的公共接头。 第一组排气传感器和催化转化器设置在第一管道中，以暴露于从第二组气缸排出的气体，其始终被激活，第二组排气传感器和催化转化器是 设置在公共管道中以暴露于从通过第一管道引导的第一组气缸排出的气体流和通过第二管道中的上游侧催化转化器的气体。 反馈控制电路在部分气缸操作期间选择性地响应来自第一气体传感器的信号，用于校正供应到第二组气缸的混合比和来自第二气体传感器的信号，用于校正比率 的混合物供应到所有气瓶。
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9.发明授权Diesel engine having swirl chamber and shaped flame dispersing recess in piston crown 失效柴油发动机具有旋流室和活塞冠中形状的火焰分散凹槽
公开(公告)号：US4662330A
公开(公告)日：1987-05-05
申请号：US743673
申请日：1985-06-11
CPC分类号： F02B23/04 , F02B19/08 , F02B19/14 , F02B3/06 , Y02T10/125
摘要： In order to promote a good flame dispersion within the combustion chamber of a swirl chamber type Diesel engine, a shaped recess formed in the piston crown is arranged to have a trench portion into which the flame from the swirl chamber is injected and mirror image flame dispersion portions on either side of the trench which terminates at the periphery of the piston crown. This arrangement inhibits the formation of secondary flame flows which tend impede desirable patterns within the flame disportion portions and simultaneously enlarges the dispersion area. In addition, careful selection of the dimensions of the transfer port which interconnects the swirl chamber and the main combustion chamber, and the various sections of the shaped recess, promotes further reductions in HC and smoke emissions.
摘要翻译： 为了在涡流室型柴油发动机的燃烧室内促进良好的火焰分散，形成在活塞冠部中的成形凹部被布置成具有沟槽部分，来自涡流室的火焰被注入到该沟槽部分中，并且镜像火焰分散 沟槽两侧的部分终止于活塞顶部的周边。 这种布置抑制二次火焰流的形成，这阻碍了火焰不均匀部分内的期望图案，并同时扩大了分散面积。 另外，仔细选择将涡流室和主燃烧室相互连接的输送口的尺寸以及成形凹槽的各个部分的尺寸，进一步降低了HC和烟雾的排放。
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10.发明授权
公开(公告)号：US4303053A
公开(公告)日：1981-12-01
申请号：US146019
申请日：1980-05-02
摘要： Under light load condition wherein only selected cylinders are fired or operate, low temperature exhaust gas gathering in an exhaust chamber for the unused cylinders is introduced into an intake chamber for the firing cylinders thereby to allow the firing cylinders to produce a less amount of NO.sub.x.
摘要翻译： 在只有选择的气缸被点火或操作的轻负载状态下，聚集在未使用气缸的排气室中的低温排气被引入到用于燃烧气缸的进气室中，从而允许燃烧气缸产生较少量的NOx。
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