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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：US4313406A
公开(公告)日：1982-02-02
申请号：US094887
申请日：1979-11-16
申请人： Haruhiko Iizuka , Fukashi Sugasawa
发明人： Haruhiko Iizuka , Fukashi Sugasawa
CPC分类号： F02D41/0087 , F02D17/02 , F02D41/0055
摘要： An internal combustion engine is disclosed which includes a plurality of cylinders split into first and second groups, and an intake passage provided with a throttle valve and bifurcated downstream of the throttle valve into two branches, one communicated with the first group of cylinders and the other communicated through a stop valve with the second group of cylinders. The second group of cylinders are bypassed by an EGR passage provided therein with an EGR valve. Control means is provided for causing the air valve to open a predetermined time after the EGR valve closes when the engine operation is shifted from its low load condition to a high load condition.
摘要翻译： 公开了一种内燃机，其包括分成第一组和第二组的多个气缸，以及设置有节流阀并将节流阀下游分叉成分成两个分支的进气通道，一个与第一组气缸连通，另一个与第一组气缸连通 通过第二组气缸与止回阀连通。 第二组气缸由其中设置有EGR阀的EGR通道旁路。 提供控制装置，用于在发动机操作从低负载状态转移到高负载状态时，在EGR阀关闭之后使空气阀打开预定时间。
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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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公开(公告)号：US4354471A
公开(公告)日：1982-10-19
申请号：US149860
申请日：1980-05-14
申请人： Fukashi Sugasawa , Haruhiko Iizuka
发明人： Fukashi Sugasawa , Haruhiko Iizuka
IPC分类号： F02D41/04 , F02D17/02 , F02D21/08 , F02D41/00 , F02D41/02 , F02D41/36 , F02D43/00 , F02M25/07
CPC分类号： F02D41/0055 , F02D17/02 , F02D41/0087 , F02D43/00 , F02M26/43 , F02M26/57 , Y02T10/47
摘要： An internal combustion engine is disclosed which includes active and inactive cylinders, an intake passage divided into first and second branches leading to the active and inactive cylinders, respectively, valve means provided at the entrance of the second intake passage, and fuel supply means for supplying a controlled amount of fuel into the active and inactive cylinders. A load detector is provided for detecting engine load to provide a low load indication signal to the fuel supply means which thereby cuts off the supply of fuel to the inactive cylinders and also to the valve means which thereby cuts off the flow of air to the inactive cylinders. Delay means is provided for delaying the start and end of application of the low load indication signal to the fuel supply means.
摘要翻译： 公开了一种内燃机，其包括主动和非活动气缸，分别分别通向主动和非活动气缸的第一和第二分支的进气通道，设置在第二进气通道入口处的阀装置，以及用于供应 控制量的燃料进入主动和非活动气缸。 提供负载检测器用于检测发动机负载以向燃料供应装置提供低负载指示信号，从而切断对非活性气缸的燃料供应，以及阀装置，从而将空气流切断到非活动状态 气瓶。 延迟装置用于将低负荷指示信号的开始和结束延迟到燃料供应装置。
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公开(公告)号：US4353342A
公开(公告)日：1982-10-12
申请号：US196334
申请日：1980-10-14
申请人： Fukashi Sugasawa , Haruhiko Iizuka
发明人： Fukashi Sugasawa , Haruhiko Iizuka
IPC分类号： F02D17/02 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/10 , F02D41/12 , F02D41/36 , F02D31/00
CPC分类号： F02D41/123 , F02D41/0087
摘要： A fuel injection control system is disclosed for an internal combustion engine having fuel injectors. The system comprises fuel-cut means operable for rendering some of the fuel injectors inoperative only when the engine speed exceeds a first predetermined value during engine deceleration and for rendering the remaining fuel injectors inoperative when the engine speed exceeds a second predetermined value higher than the first predetermined value during engine deceleration. Control means is provided for rendering the fuel-cut means inoperative when rapid engine deceleration occurs, thereby permitting the operation of all of the fuel injectors regardless of the engine speed.
摘要翻译： 公开了一种具有燃料喷射器的内燃机的燃料喷射控制系统。 该系统包括燃料切断装置，其可操作以仅在发动机减速期间发动机转速超过第一预定值时使部分燃料喷射器不起作用，并且当发动机转速超过第一预定值时，剩余燃料喷射器不起作用 发动机减速时预定值。 提供控制装置，用于使发动机减速发生时燃料切断装置不起作用，从而允许所有燃料喷射器的操作，而与发动机转速无关。
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公开(公告)号：US4345571A
公开(公告)日：1982-08-24
申请号：US135072
申请日：1980-03-28
申请人： Haruhiko Iizuka , Fukashi Sugasawa
发明人： Haruhiko Iizuka , Fukashi Sugasawa
摘要： An internal combustion engine is disclosed which includes active cylinders which are always active and inactive cylinders which are inactive when the engine load is below a predetermined value. The engine has an intake passage divided into first and second branches connected to active and inactive cylinders, respectively. The second branch is provided near its inlet with a stop valve and is connected through an EGR passage to the engine exhaust passage. Means are provided to attenuate pressure waves resulting from exhaust pulsations and propagated through the EGR passage toward the second intake passage branch.
摘要翻译： 公开了一种内燃机，其包括有效气缸，其主动和无效气缸在发动机负载低于预定值时不起作用。 发动机具有分别连接到主动和非活动气缸的第一和第二分支的进气通道。 第二分支在其入口附近设置有截止阀，并且通过EGR通道连接到发动机排气通道。 提供了用于衰减由排气脉动产生的压力波并且通过EGR通道向第二进气通道分支传播的装置。
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公开(公告)号：US4231338A
公开(公告)日：1980-11-04
申请号：US43123
申请日：1979-05-30
申请人： Fukashi Sugasawa , Haruhiko Iizuka
发明人： Fukashi Sugasawa , Haruhiko Iizuka
摘要： An internal combustion engine is disclosed which comprises a plurality of cylinders split into first and second groups, the first group of cylinders held in operation independently of engine load conditions, the second group of cylinders having no supply of fuel and fresh air so as to be placed out of operation when the engine is under low load conditions, an exhaust passage connected to the exhaust ports of the first and second groups of cylinders, a sensor provided within the exhaust passage for detecting the oxygen concentration of the exhaust gases passing through the exhaust passage, control means responsive to an output of the sensor for controlling the air/fuel ratio of a mixture produced in each cylinder to an optimum value, an exahust gas purifier provided in the exhaust passage for purifying the exhaust gases passing through the exhaust passage, an exhaust gas recirculation passage having its one end connected to the intake passage of the second group of cylinders and the other end connected to the exhaust passage in arrear of the exhaust gas purifier, and valve means provided in the EGR passage which is open to allow recirculation of exhaust gases through the EGR passage when the engine is under low load conditions.
摘要翻译： 公开了一种内燃机，其包括分成第一组和第二组的多个气缸，第一组气缸独立于发动机负荷条件保持运行，第二组气缸不供应燃料和新鲜空气，以便 当发动机处于低负载状态时，在与第一和第二组气缸的排气口连接的排气通道上设置有停止运行的传感器，设置在排气通道内的传感器，用于检测通过废气的废气的氧气浓度 通过，响应于所述传感器的输出的控制装置，用于控制每个气缸中产生的混合物的空气/燃料比达到最佳值;设置在所述排气通道中的用于净化通过所述排气通道的排气的过氧化物气体净化器， 排气再循环通道，其一端连接到第二组气缸的进气通道和第二组 呃端连接到排气净化器的排气通道，以及设置在EGR通道中的阀装置，该EGR通道在发动机处于低负荷状态时是开放的，以允许废气通过EGR通道再循环。
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公开(公告)号：US4484548A
公开(公告)日：1984-11-27
申请号：US206308
申请日：1980-11-12
申请人： Fukashi Sugasawa , Haruhiko Iizuka
发明人： Fukashi Sugasawa , Haruhiko Iizuka
IPC分类号： F02D41/04 , F02D17/02 , F02D21/08 , F02D41/00 , F02D41/02 , F02D41/14 , F02D41/36 , F02D17/00
CPC分类号： F02D41/1446 , F02D41/0055 , F02D41/0087 , F02D2041/0265 , F02D2200/0802 , Y02T10/47
摘要： An internal combustion engine is disclosed which comprises first and second cylinder units each including at least one cylinder, a control circuit responsive to engine load for supplying a mixture of an optimum air/fuel ratio to the first and second cylinder units and for terminating the supply of the mixture to the second cylinder unit when the engine load is below a given value, and an exhaust system having therein a catalytic converter. An emergency circuit is provided for forcing the control circuit to lean out the air/fuel ratio in response to an increase in the temperature of the catalytic converter.
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，响应于发动机负载的控制电路，用于向第一和第二气缸单元提供最佳空气/燃料比的混合物，并用于终止供应 当所述发动机负荷低于给定值时，所述混合物到所述第二气缸单元;以及排气系统，其中具有催化转化器。 提供了一个紧急电路，用于迫使控制电路响应于催化转化器温度的升高来减少空气/燃料比。
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公开(公告)号：US4467602A
公开(公告)日：1984-08-28
申请号：US436517
申请日：1982-10-25
申请人： Haruhiko Iizuka , Fukashi Sugasawa
发明人： Haruhiko Iizuka , Fukashi Sugasawa
IPC分类号： F02D41/02 , B01D53/94 , F01N3/20 , F01N9/00 , F01N13/02 , F02D17/02 , F02D41/00 , F02D41/14 , F02D41/36 , F02D17/00
CPC分类号： F02D41/1443 , B01D53/9495 , F01N13/009 , F01N3/20 , F01N9/00 , F02D17/02 , F02D41/0087 , F01N2430/02 , F01N2430/06 , Y02T10/47
摘要： A split engine control system operates a multiple cylinder internal combustion engine by using only some of the plurality of cylinders under light load conditions. The total number of cylinders are split into a first cylinder group which is always activated during engine operation and a second cylinder group which is deactivated under light load conditions. The engine is provided with an exhaust passage which consists of first and second upstream exhaust passages connected to the first and second cylinder group, respectively, and a common downstream exhaust passage. An exhaust gas sensor and a first catalytic converter are disposed in the first upstream exhaust passage, and a second catalytic converter is disposed in the common downstream exhaust passage. A temperature sensor is provided in the second catalytic converter. When the temperature of the second catalytic converter is above a certain level during the partial cylinder mode, the engine is feedback controlled by a signal from the exhaust gas sensor and the exhaust gases are purified by the first catalytic converter. When the temperature is below the level during the partial cylinder mode, the air-fuel mixture is enriched with respect to the stoichiometric point so as to promote reduction of the NOx component of the exhaust gases in the first catalytic converter and oxidation of the remaining HC and CO components in the second catalytic converter.
摘要翻译： 分体式发动机控制系统通过在轻负载条件下仅使用多个气缸中的一些来操作多气缸内燃机。 汽缸总数被分成在发动机运转期间始终被激活的第一汽缸组和在轻负载条件下停用的第二汽缸组。 发动机设置有排气通道，该排气通道分别与连接到第一和第二气缸组的第一和第二上游排气通道以及共同的下游排气通道组成。 排气传感器和第一催化转化器设置在第一上游排气通道中，第二催化转化器设置在共同的下游排气通道中。 在第二催化转化器中设置温度传感器。 当在部分气缸模式期间第二催化转化器的温度高于一定水平时，发动机由来自废气传感器的信号进行反馈控制，排气由第一催化转化器净化。 当在部分气缸模式期间温度低于水平时，空气 - 燃料混合物相对于化学计量点富集，以促进第一催化转化器中废气的NOx组分的还原和剩余HC的氧化 和第二催化转化器中的CO组分。
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公开(公告)号：US4391240A
公开(公告)日：1983-07-05
申请号：US134314
申请日：1980-03-26
申请人： Fukashi Sugasawa , Haruhiko Iizuka
发明人： Fukashi Sugasawa , Haruhiko Iizuka
IPC分类号： F02D41/14 , F02D17/02 , F02D21/08 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/36 , F02M23/02
CPC分类号： F02D41/0055 , F02D17/02 , F02D41/0087 , Y02T10/47
摘要： An internal combustion engine is disclosed which includes an active cylinder unit always active and an inactive cylinder unit being inactive when the engine load is below a predetermined value. The engine has an intake passage divided into first and second branches leading to the active and inactive cylinder units, respectively. The second intake passage branch is connected through an EGR passage to the exhaust passage of the engine. The second intake passage branch has therein a stop valve and the EGR passage having therein an EGR valve. Means are provided for closing the stop valve and opening the EGR valve at a predetermined time after a low engine load condition occurs.
摘要翻译： 公开了一种内燃机，其包括总是有效的有效气缸单元，并且当发动机负载低于预定值时，非活动气缸单元不活动。 发动机具有分别被分成通向主动和无效气缸单元的第一和第二分支的进气通道。 第二进气通道分支通过EGR通道连接到发动机的排气通道。 第二进气通道分支中具有截止阀，并且EGR通道中具有EGR阀。 提供了在低发动机负载状态发生之后的预定时间关闭截止阀和打开EGR阀的装置。
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