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公开(公告)号：US6112721A
公开(公告)日：2000-09-05
申请号：US66452
申请日：1998-04-28
申请人： Susumu Kouketsu , Hitoshi Yokomura , Keiki Tanabe
发明人： Susumu Kouketsu , Hitoshi Yokomura , Keiki Tanabe
CPC分类号： F02M47/027 , F02M45/00 , F02M45/12 , F02M63/0225 , F02D2041/3881
摘要： A fuel injection system that can be used in a diesel engine is provided. The system includes a first accumulator for storing high-pressure fuel and a second accumulator for storing low-pressure fuel sufficiently lower in pressure than the fuel stored in the first accumulator. There is a first two-way electromagnetic valve disposed in a first fuel passage connecting the first accumulator with a fuel injection nozzle. A flow control apparatus controls a flow rate of fuel passing through a second fuel passage connecting a downstream side of the first two-way electromagnetic valve in the first fuel passage with the second accumulator. The flow control apparatus is placed in the second fuel passage. A second two-way electromagnetic valve is placed in a third fuel return passage which connects the fuel injection nozzle with a fuel tank. The second two-way electromagnetic valve switches the fuel injection modes of the fuel from its injection mode to its uninjection mode or vice versa. Also, there is provided a control device for controlling both the first two-way electromagnetic valve and the second two-way electromagnetic valve so that they open and close in response to operating conditions of the engine.
摘要翻译： PCT No.PCT / JP97 / 02667 Sec。 371日期：1998年4月28日 102（e）1998年4月28日PCT PCT 1997年7月31日PCT公布。 公开号WO98 / 09068 1998年3月5日提供可用于柴油发动机的燃油喷射系统。 该系统包括用于存储高压燃料的第一蓄能器和用于存储压力低于储存在第一蓄能器中的燃料的低压燃料的第二蓄能器。 第一双向电磁阀设置在连接第一蓄能器和燃料喷嘴的第一燃料通道中。 流量控制装置控制通过连接第一燃料通道中的第一双向电磁阀的下游侧的第二燃料通道的燃料与第二蓄能器的流量。 流量控制装置被放置在第二燃料通道中。 第二双向电磁阀被放置在将燃料喷嘴与燃料箱连接的第三燃料返回通道中。 第二个双向电磁阀将燃料的燃料喷射模式从其喷射模式切换到其未喷射模式，反之亦然。 此外，还提供了一种用于控制第一双向电磁阀和第二双向电磁阀的控制装置，使得它们响应于发动机的操作条件而打开和关闭。
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公开(公告)号：US20060112934A1
公开(公告)日：2006-06-01
申请号：US11094470
申请日：2005-03-31
申请人： Keiki Tanabe , Shinji Nakayama , Susumu Kouketsu
发明人： Keiki Tanabe , Shinji Nakayama , Susumu Kouketsu
IPC分类号： F02M57/02
CPC分类号： F02D41/3872 , F02D41/3845 , F02D2200/0602 , F02D2250/31 , F02M47/027 , F02M57/025
摘要： A booster unit is provided in an injector of a fuel injection system. The booster unit comprises a booster piston accommodated in a pressure chamber, and a discharge valve capable of discharging fuel in a backpressure chamber. A controller has an indication-value setting step of setting an indication value of a target pressure in a common rail in correspondence to an engine operation state, a determination step of determining whether or not the indication value of the pressure in the common rail is in a direction of reduction to be lower in comparison to a previously set indication value, and a step of prolonging an open time of a discharge valve of the booster unit when the determination step has determined that the indication value is in the direction of reduction.
摘要翻译： 在燃料喷射系统的喷射器中设置增压单元。 升压单元包括容纳在压力室中的增压活塞和能够在背压室中排出燃料的排出阀。 控制器具有指示值设定步骤，对应于发动机运转状态，设定共轨中的目标压力的指示值，确定步骤，确定共轨中压力的指示值是否在 减速方向与先前设定的指示值相比较低，以及当确定步骤已经确定指示值处于减小方向时，延长升压单元的排出阀的打开时间的步骤。
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3.发明授权公开(公告)号：US07395658B2
公开(公告)日：2008-07-08
申请号：US11234432
申请日：2005-09-23
IPC分类号： F01N3/00
CPC分类号： F02D41/1441 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/03 , F02D41/1446 , F02D41/187 , F02D2200/0806 , F02D2200/0808 , Y02T10/24 , Y02T10/47
摘要： There is provided an apparatus that estimates the NOx adsorption amount, comprising a NOx trap catalyst that is disposed in an exhaust passage of an engine, for adsorbing NOx in exhaust gases during lean operation and releasing and reducing the adsorbed NOx during rich operation, an operation unit that computes an amount of emission from the catalyst during rich operation by using a map or a polynomial equation that reflects emissions from the catalyst based on the exhaust gas temperature and the exhaust gas flow rate of the exhaust passage and the excess-air factor upstream of the catalyst, and an estimating unit that estimates an amount of adsorption in the NOx trap catalyst from the computed emission amount.
摘要翻译： 提供了一种估计NOx吸附量的装置，其包括设置在发动机的排气通道中的NOx捕集催化剂，用于在稀薄操作期间吸附废气中的NOx，并且在富运行期间释放和减少吸附的NOx，操作 单元，其通过使用基于排气通道的排气温度和排气流量和过量空气系数上游的催化剂的排放的映射或多项式方程式计算在富运行期间来自催化剂的排放量 的催化剂，以及估计单元，其从所计算的排放量估计NOx捕集催化剂中的吸附量。
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公开(公告)号：US20050268888A1
公开(公告)日：2005-12-08
申请号：US11094477
申请日：2005-03-31
申请人： Shinji Nakayama , Susumu Kouketsu , Keiki Tanabe
发明人： Shinji Nakayama , Susumu Kouketsu , Keiki Tanabe
IPC分类号： F02M47/00 , F02D41/04 , F02D41/38 , F02M1/00 , F02M47/02 , F02M51/00 , F02M57/02 , F02M59/10 , F02M59/46 , F02M61/20 , F02M63/00 , F02M63/02
CPC分类号： F02M63/0043 , F02D41/3872 , F02M47/027 , F02M57/025 , F02M59/105 , F02M61/205 , F02M63/0225
摘要： A booster unit is provided in an injector of a fuel injection system. The booster unit includes a booster piston accommodated in a pressure chamber, and a discharge valve capable of discharging fuel in a backpressure chamber. A controller includes an indication-value setting step which sets an indication value of a target pressure in a common rail in correspondence to an engine operation state, a determination step which determines whether or not the indication value of the pressure in the common rail is in a direction of reduction to be lower in comparison to a previously set indication value, and a booster piston pseudo-operation step which opens the discharge valve at timing other than injection operation of the injector when the determination step has determined that the indication value is in the direction of reduction.
摘要翻译： 在燃料喷射系统的喷射器中设置增压单元。 升压单元包括容纳在压力室中的增压活塞和能够在背压室中排出燃料的排出阀。 指示值设定步骤，根据发动机的运转状态，设定共轨中的目标压力的指示值，判定步骤，判断共轨中的压力的指示值是否在 减速方向与先前设定的指示值相比较低;以及增压器活塞伪操作步骤，当所述确定步骤已经确定所述指示值处于所述指示值时，在所述喷射器的喷射操作之外的定时打开所述排出阀 减少的方向。
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公开(公告)号：US07007671B2
公开(公告)日：2006-03-07
申请号：US11094477
申请日：2005-03-31
申请人： Shinji Nakayama , Susumu Kouketsu , Keiki Tanabe
发明人： Shinji Nakayama , Susumu Kouketsu , Keiki Tanabe
CPC分类号： F02M63/0043 , F02D41/3872 , F02M47/027 , F02M57/025 , F02M59/105 , F02M61/205 , F02M63/0225
摘要： A booster unit is provided in an injector of a fuel injection system. The booster unit includes a booster piston accommodated in a pressure chamber, and a discharge valve capable of discharging fuel in a backpressure chamber. A controller includes an indication-value setting step which sets an indication value of a target pressure in a common rail in correspondence to an engine operation state, a determination step which determines whether or not the indication value of the pressure in the common rail is in a direction of reduction to be lower in comparison to a previously set indication value, and a booster piston pseudo-operation step which opens the discharge valve at timing other than injection operation of the injector when the determination step has determined that the indication value is in the direction of reduction.
摘要翻译： 在燃料喷射系统的喷射器中设置增压单元。 升压单元包括容纳在压力室中的增压活塞和能够在背压室中排出燃料的排出阀。 指示值设定步骤，根据发动机的运转状态，设定共轨中的目标压力的指示值，判定步骤，判断共轨中的压力的指示值是否在 减速方向与先前设定的指示值相比较低;以及增压器活塞伪操作步骤，当所述确定步骤已经确定所述指示值处于所述指示值时，在所述喷射器的喷射操作之外的定时打开所述排出阀 减少的方向。
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公开(公告)号：US20050229905A1
公开(公告)日：2005-10-20
申请号：US11094476
申请日：2005-03-31
申请人： Shinji Nakayama , Susumu Kouketsu , Keiki Tanabe
发明人： Shinji Nakayama , Susumu Kouketsu , Keiki Tanabe
CPC分类号： F02M63/0225 , F02M47/027 , F02M55/002 , F02M57/025
摘要： A booster unit is provided in an injector of a fuel injection system. The booster unit includes a booster piston accommodated in a pressure chamber, and a discharge valve capable of discharging fuel in a backpressure chamber. A needle valve drive unit includes a pressure-receiving piston and an open/close valve. A return passage is connected to a discharge side of the open/close valve. A fuel discharge passage in communication with the discharge valve is combined with the return passage in a confluence portion. A check valve is provided between the confluence portion and the open/close valve. A check valve permits the fuel discharged to the return passage from a pressurization chamber to be directed to the confluence portion, and prevents the fuel discharged to the fuel discharge passage from the backpressure chamber from being directed the open/close valve.
摘要翻译： 在燃料喷射系统的喷射器中设置增压单元。 升压单元包括容纳在压力室中的增压活塞和能够在背压室中排出燃料的排出阀。 针阀驱动单元包括受压活塞和打开/关闭阀。 返回通道连接到打开/关闭阀的排出侧。 与排出阀连通的燃料排出通道与汇合部分中的返回通道组合。 在汇合部分和打开/关闭阀之间设有止回阀。 止回阀允许从加压室排出到返回通道的燃料被引导到汇合部分，并且防止从背压室排出到燃料排出通道的燃料被引导到打开/关闭阀。
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7.发明申请公开(公告)号：US20060064968A1
公开(公告)日：2006-03-30
申请号：US11234432
申请日：2005-09-23
CPC分类号： F02D41/1441 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/03 , F02D41/1446 , F02D41/187 , F02D2200/0806 , F02D2200/0808 , Y02T10/24 , Y02T10/47
摘要： There is provided an apparatus that estimates the NOx adsorption amount, comprising a NOx trap catalyst that is disposed in an exhaust passage of an engine, for adsorbing NOx in exhaust gases during lean operation and releasing and reducing the adsorbed NOx during rich operation, an operation unit that computes an amount of emission from the catalyst during rich operation by using a map or a polynomial equation that reflects emissions from the catalyst based on the exhaust gas temperature and the exhaust gas flow rate of the exhaust passage and the excess-air factor upstream of the catalyst, and an estimating unit that estimates an amount of adsorption in the NOx trap catalyst from the computed emission amount.
摘要翻译： 提供了一种估计NOx吸附量的装置，其包括设置在发动机的排气通道中的NOx捕集催化剂，用于在稀薄操作期间吸附废气中的NOx，并且在富运行期间释放和减少吸附的NOx，操作 单元，其通过使用基于排气通道的排气温度和排气流量和过量空气系数上游的催化剂的排放的映射或多项式方程式计算在富运行期间来自催化剂的排放量 的催化剂，以及估计单元，其从所计算的排放量估计NOx捕集催化剂中的吸附量。
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公开(公告)号：US07107966B2
公开(公告)日：2006-09-19
申请号：US11094470
申请日：2005-03-31
申请人： Keiki Tanabe , Shinji Nakayama , Susumu Kouketsu
发明人： Keiki Tanabe , Shinji Nakayama , Susumu Kouketsu
IPC分类号： F02M37/04
CPC分类号： F02D41/3872 , F02D41/3845 , F02D2200/0602 , F02D2250/31 , F02M47/027 , F02M57/025
摘要： A booster unit is provided in an injector of a fuel injection system. The booster unit comprises a booster piston accommodated in a pressure chamber, and a discharge valve capable of discharging fuel in a backpressure chamber. A controller has an indication-value setting step of setting an indication value of a target pressure in a common rail in correspondence to an engine operation state, a determination step of determining whether or not the indication value of the pressure in the common rail is in a direction of reduction to be lower in comparison to a previously set indication value, and a step of prolonging an open time of a discharge valve of the booster unit when the determination step has determined that the indication value is in the direction of reduction.
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公开(公告)号：US07040288B2
公开(公告)日：2006-05-09
申请号：US11094476
申请日：2005-03-31
申请人： Shinji Nakayama , Susumu Kouketsu , Keiki Tanabe
发明人： Shinji Nakayama , Susumu Kouketsu , Keiki Tanabe
IPC分类号： F02M37/04
CPC分类号： F02M63/0225 , F02M47/027 , F02M55/002 , F02M57/025
摘要： A booster unit is provided in an injector of a fuel injection system. The booster unit includes a booster piston accommodated in a pressure chamber, and a discharge valve capable of discharging fuel in a backpressure chamber. A needle valve drive unit includes a pressure-receiving piston and an open/close valve. A return passage is connected to a discharge side of the open/close valve. A fuel discharge passage in communication with the discharge valve is combined with the return passage in a confluence portion. A check valve is provided between the confluence portion and the open/close valve. A check valve permits the fuel discharged to the return passage from a pressurization chamber to be directed to the confluence portion, and prevents the fuel discharged to the fuel discharge passage from the backpressure chamber from being directed the open/close valve.
摘要翻译： 在燃料喷射系统的喷射器中设置增压单元。 升压单元包括容纳在压力室中的增压活塞和能够在背压室中排出燃料的排出阀。 针阀驱动单元包括受压活塞和打开/关闭阀。 返回通道连接到打开/关闭阀的排出侧。 与排出阀连通的燃料排出通道与汇合部分中的返回通道组合。 在汇合部分和打开/关闭阀之间设有止回阀。 止回阀允许从加压室排出到返回通道的燃料被引导到汇合部分，并且防止从背压室排出到燃料排出通道的燃料被引导到打开/关闭阀。
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