公开(公告)号：US06840224B2

公开(公告)日：2005-01-11

申请号：US10622691

申请日：2003-07-21

申请人： Keiki Tanabe ,  Susumu Kohketsu ,  Shinji Nakayama

发明人： Keiki Tanabe ,  Susumu Kohketsu ,  Shinji Nakayama

IPC分类号： F02M47/00 ,  F02D41/22 ,  F02D41/38 ,  F02D45/00 ,  F02M63/00 ,  F02M55/02

CPC分类号： F02D41/22 ,  F02D41/3809 ,  F02D2041/223 ,  F02D2041/224

摘要： A pressure-elevating type fuel injecting system selectively injects via injectors fuel stored in a common rail or fuel whose pressure is elevated by a pressure elevating mechanism into a combustion chamber, and comprises a crank angle sensor producing crank pulse signals in accordance with operating states of an engine, a pulse interval calculating unit calculating pulse intervals between respective crank pulse signals, and a determination unit determining the malfunction of the pressure elevating mechanism when a variation of the pulse interval is above a determination threshold.

摘要翻译： 压力升高型燃料喷射系统通过喷射器选择性地将存储在通过压力升高机构升高的共轨或燃料中的燃料喷射到燃烧室中，并且包括根据操作状态产生曲柄脉冲信号的曲轴转角传感器 发动机，计算各个曲柄脉冲信号之间的脉冲间隔的脉冲间隔计算单元，以及当脉冲间隔的变化高于确定阈值时确定压力升高机构的故障的确定单元。

公开(公告)号：US20060118090A1

公开(公告)日：2006-06-08

申请号：US11269517

申请日：2005-11-08

申请人： Keiki Tanabe ,  Shinji Nakayama ,  Susumu Kohketsu

发明人： Keiki Tanabe ,  Shinji Nakayama ,  Susumu Kohketsu

IPC分类号： F02M57/02 ,  F02M59/36

CPC分类号： F02M57/025 ,  F02M45/12 ,  F02M47/027 ,  F02M59/366 ,  F02M63/0225

摘要： Immediately before fuel pressure is increased by a pressure-increase mechanism, a pressure-increase control valve of each cylinder is opened in timing that does not overlap the timing of opening of an injection control valve, and the period of time for which the pressure-increase control valves is opened is gradually increased. As a result, it is possible to prevent the quantity of fuel consumed by the pressure-increase mechanism from rapidly increasing when the increase of fuel pressure is started.

摘要翻译： 在通过增压机构增加燃料压力之前，每个气缸的增压控制阀在不与喷射控制阀的打开正时重叠的定时打开，并且压力 - 增加控制阀打开逐渐增加。 结果，当燃料压力的增加开始时，可​​以防止由增压机构消耗的燃料量迅速增加。

公开(公告)号：US20060112681A1

公开(公告)日：2006-06-01

申请号：US11264359

申请日：2005-11-01

申请人： Shinji Nakayama ,  Susumu Kohketsu ,  Keiki Tanabe ,  Daisuke Sunohara

发明人： Shinji Nakayama ,  Susumu Kohketsu ,  Keiki Tanabe ,  Daisuke Sunohara

IPC分类号： F01N3/00 ,  F01N3/10

CPC分类号： F02D41/0275 ,  F01N3/0807 ,  F01N3/0842 ,  F01N3/206 ,  F01N11/00 ,  F01N2430/06 ,  F01N2430/085 ,  F01N2550/05 ,  F02D41/1441 ,  F02D41/22 ,  F02D41/3836 ,  F02D41/405 ,  Y02T10/24 ,  Y02T10/44 ,  Y02T10/47

摘要： An exhaust emission control device of an internal combustion engine includes a fuel supply unit provided in a fuel supply passage, for supplying a reducing agent directly to a NOx trap catalytic converter; an addition pressure detection unit for detecting the supply pressure of the reducing agent supplied by the fuel supply unit; and a controller for calculating the amount of NOx adsorbed by the catalytic converter. When the supply pressure of the reducing agent is almost zero, the controller prohibits calculation of NOx adsorption amount depending on the supply of the reducing agent, creates a rich state in a cylinder, carries out calculation of NOx adsorption amount depending on the created rich state, and causes release and reduction of the adsorbed NOx.

摘要翻译： 内燃机的废气排放控制装置包括：燃料供给单元，其设置在燃料供给路径中，用于将还原剂直接供给到NOx捕集催化转化器; 添加压力检测单元，用于检测由燃料供给单元供应的还原剂的供给压力; 以及用于计算催化转化器吸附的NOx的量的控制器。 当还原剂的供给压力几乎为零时，控制器禁止根据还原剂的供给来计算NOx吸附量，在气缸中产生浓的状态，根据所产生的富态进行NOx吸附量的计算 并且引起吸附的NOx的释放和还原。

公开(公告)号：US07225794B2

公开(公告)日：2007-06-05

申请号：US11269517

申请日：2005-11-08

申请人： Keiki Tanabe ,  Shinji Nakayama ,  Susumu Kohketsu

发明人： Keiki Tanabe ,  Shinji Nakayama ,  Susumu Kohketsu

IPC分类号： F02M37/04

CPC分类号： F02M57/025 ,  F02M45/12 ,  F02M47/027 ,  F02M59/366 ,  F02M63/0225

摘要： Immediately before fuel pressure is increased by a pressure-increase mechanism, a pressure-increase control valve of each cylinder is opened in timing that does not overlap the timing of opening of an injection control valve, and the period of time for which the pressure-increase control valves is opened is gradually increased. As a result, it is possible to prevent the quantity of fuel consumed by the pressure-increase mechanism from rapidly increasing when the increase of fuel pressure is started.

摘要翻译： 在通过增压机构增加燃料压力之前，每个气缸的增压控制阀在不与喷射控制阀的打开正时重叠的定时打开，并且压力 - 增加控制阀打开逐渐增加。 结果，当燃料压力的增加开始时，可​​以防止由增压机构消耗的燃料量迅速增加。

公开(公告)号：US06792917B2

公开(公告)日：2004-09-21

申请号：US10413555

申请日：2003-04-15

申请人： Susumu Kohketsu ,  Shinji Nakayama ,  Keiki Tanabe

发明人： Susumu Kohketsu ,  Shinji Nakayama ,  Keiki Tanabe

IPC分类号： F02M3704

CPC分类号： F02M45/12 ,  F02D41/3836 ,  F02D41/401 ,  F02M45/04 ,  F02M51/061 ,  F02M57/025 ,  F02M59/105 ,  Y02T10/44

摘要： A pressure-elevating type fuel injecting system pressurizes high pressure fuel from a pressure accumulating chamber using a pressure-elevating mechanism and injects the pressure-elevated fuel into combustion chambers by injectors. The pressure-elevating type fuel injecting system comprises a target fuel injection quantity setting unit which sets a target fuel injection quantity, a time difference setting unit which sets a time difference between a timing for opening an injector electromagnetic valve and a timing for operating an pressure-elevating mechanism electromagnetic valve, an initial fuel injection quantity calculating unit calculating an initial fuel injection quantity on the basis of a time-dependent variation of fuel pressure and the time difference, and a final injection period setting unit which calculates an operation period of the injector electromagnetic valve, on the basis of a final fuel injection quantity and the time-dependent variation of the pressure of the pressure-elevated fuel.

摘要翻译： 升压型燃料喷射系统使用升压机构对来自蓄压室的高压燃料加压，并且通过喷射器将升压燃料喷射到燃烧室。 升压型燃料喷射系统包括设定目标燃料喷射量的目标燃料喷射量设定单元，设定打开喷射器电磁阀的定时与操作压力的定时之间的时间差的时间差设定单元 - 升降机构电磁阀，初始燃料喷射量计算单元，基于燃料压力和时间差的时间相关变化来计算初始燃料喷射量，以及最终喷射周期设定单元，其计算 基于最终燃料喷射量和升压燃料的压力随时间变化的喷射器电磁阀。

公开(公告)号：US06543420B2

公开(公告)日：2003-04-08

申请号：US10108894

申请日：2002-03-29

申请人： Susumu Kohketsu ,  Keiki Tanabe ,  Shinji Nakayama

发明人： Susumu Kohketsu ,  Keiki Tanabe ,  Shinji Nakayama

IPC分类号： F02M4502

CPC分类号： F02D41/3836 ,  F01N13/009 ,  F01N2250/02 ,  F02B3/06 ,  F02D41/3854 ,  F02D41/405 ,  F02D2041/3881 ,  F02D2041/389 ,  F02D2200/0602 ,  F02D2200/602 ,  F02D2250/31 ,  F02M45/02 ,  F02M47/027 ,  Y02T10/44

摘要： In a common rail system comprised of a first accumulator storing high-pressure fuel and a second accumulator storing low-pressure fuel, additional fuel is injected when a fuel pressure in a fuel passage or in the second accumulator (low inlet pressure of an injector) is reduced to a low pressure approximate to the pressure of the low-pressure fuel stored in the second accumulator after a switching valve is operated for disconnection from the fuel passage (switching valve drive signal OFF) at a point in time when a main injection control device finishes the injection of fuel (injector drive signal OFF) or after the main injection control device finishes the injection of fuel. This keeps the fuel pressure as low as possible during post injection to prevent the fuel from adhering to the wall surfaces of cylinder liners.

公开(公告)号：US06684856B2

公开(公告)日：2004-02-03

申请号：US10294893

申请日：2002-11-15

申请人： Keiki Tanabe ,  Shinji Nakayama ,  Susumu Kohketsu

发明人： Keiki Tanabe ,  Shinji Nakayama ,  Susumu Kohketsu

IPC分类号： F02M3704

CPC分类号： F02M59/105 ,  F02D41/187 ,  F02D41/3836 ,  F02D2041/3881 ,  F02D2200/0602 ,  F02D2200/0606 ,  F02D2250/31 ,  F02M55/00 ,  F02M63/0225

摘要： By setting a switching timing of switching means that connects either one of a high pressure fuel source and a low pressure fuel source to an injector earlier than a point of time when an injector finishes a high pressure fuel injection, leak fuel or return fuel is reduced and an engine load is reduced and therefore mileage is improved.

摘要翻译： 通过将喷射器完成高压燃料喷射时的时间点设定为将高压燃料源和低压燃料源中的任一个连接到喷射器的切换装置的切换时刻，减少了泄漏燃料或返回燃料 并且减少发动机负荷，因此提高了里程。

公开(公告)号：US06672279B2

公开(公告)日：2004-01-06

申请号：US10116065

申请日：2002-04-05

申请人： Shinji Nakayama ,  Susumu Kohketsu ,  Keiki Tanabe

发明人： Shinji Nakayama ,  Susumu Kohketsu ,  Keiki Tanabe

IPC分类号： F02M3704

CPC分类号： F02M63/0225 ,  F01N3/0231 ,  F01N3/035 ,  F01N13/009 ,  F01N2250/02 ,  F02B3/06 ,  F02D41/029 ,  F02D41/402 ,  F02D2041/3881 ,  F02D2200/0602 ,  F02D2250/11 ,  F02D2250/31 ,  F02M45/00 ,  F02M45/04 ,  F02M47/027

摘要： A common-rail injection system includes a first accumulator of high pressure and a second accumulator of low pressure. The common-rail injection system includes a post injection control device for injecting additional low-pressure fuel from the second accumulator through a fuel injection nozzle after main fuel is injected. The post injection control device injects the additional fuel the injection terminates at a first timing when the fuel pressure in either fuel passage or second accumulator lowers to a predetermined value lower than that of the high-pressure fuel or at a second timing when an exhaust stroke of the engine is completed, whichever earlier.

摘要翻译： 共轨喷射系统包括高压的第一蓄能器和低压的第二蓄能器。 共轨喷射系统包括后喷射控制装置，用于在主燃料喷射之后通过燃料喷射喷嘴从第二蓄能器喷射附加的低压燃料。 后燃料喷射控制装置在燃料通道或第二蓄能器中的燃料压力降低到低于高压燃料的预定值的第一定时或者当排气冲程的第二定时时，喷射终止的附加燃料喷射终止 的发动机完成，以较早者为准。

公开(公告)号：US06378498B2

公开(公告)日：2002-04-30

申请号：US09758944

申请日：2001-01-11

申请人： Susumu Kohketsu ,  Keiki Tanabe

发明人： Susumu Kohketsu ,  Keiki Tanabe

IPC分类号： F02M3704

CPC分类号： F02D41/3827 ,  F02D41/221 ,  F02D41/222 ,  F02D41/3836 ,  F02D2041/223 ,  F02D2041/224 ,  F02D2041/227 ,  F02D2041/3881

摘要： An accumulator type fuel injection system adapted to prevent engine trouble by making a judgement that fuel injection rate switching change-over valves provided correspondingly to fuel injection nozzles in cylinders, a valve for controlling the pressure in a low-pressure accumulator or means for detecting fuel pressures in accumulators gets out of order, and carrying out when any of these parts break down a control operation of a limp-home mode in which a region of an operation of an engine is limited. To provide such an accumulator type fuel injection system, a control means 8 is formed so that, when a judgement that first control valves 5, a second control valve 34 or pressure sensors 3a, 4a for detecting the fuel pressures in the respective accumulators get out of order is given, the control means 8 sets a discharge pressure of a fuel pump 1 not higher than a permissible pressure in a second accumulator 4, and injects a fuel from fuel injection nozzles 9.

公开(公告)号：US06363914B1

公开(公告)日：2002-04-02

申请号：US09668668

申请日：2000-09-22

申请人： Keiki Tanabe ,  Susumu Kohketsu ,  Seijiro Kotooka

发明人： Keiki Tanabe ,  Susumu Kohketsu ,  Seijiro Kotooka

IPC分类号： F02M3304

CPC分类号： F02D41/3827 ,  F02D41/3836 ,  F02D2041/3881 ,  F02M47/027 ,  F02M63/0003 ,  F02M63/0005 ,  F02M2200/40

摘要： An accumulator fuel injection system for controlling an injection rate according to the operating state of an engine comprises: a first accumulation chamber 2 for containing high-pressure fuel supplied by a fuel supply pump 1; a first electromagnetic valve device 4 provided in a fuel passage 30, which connects the first accumulation chamber 2 with a fuel injection valve 8, the first electromagnetic valve switching the fuel passage 30 between a connected state or a disconnected state; a branch passage 32 branched from the fuel passage 30 at downstream side of the first electromagnetic device 4, the branch passage 32 having sufficiently lower constant fuel pressure than fuel pressure in the first accumulation chamber 2; and a second electromagnetic valve device 9 provided in a fuel return passage 33 connecting the fuel injection valve 8 with a fuel tank 10, the second electromagnetic valve device 9 switching fuel, which is injected from the fuel injection valve 8, between an injected state and an uninjected state; and control means 40 for opening the first electromagnetic valve device 4 prior to the opening of the second electromagnetic valve device 9 and then opening the second electromagnetic valve device 9.

摘要翻译： 一种用于根据发动机的运行状态控制喷射速率的蓄能器燃料喷射系统，包括：用于容纳由燃料供给泵1供给的高压燃料的第一蓄积室2; 设置在连接第一蓄积室2和燃料喷射阀8的燃料通路30中的第一电磁阀装置4，第一电磁阀在连接状态或断开状态之间切换燃料通路30; 在第一电磁装置4的下游侧从燃料通路30分支的分支通道32，具有比第一累积室2中的燃料压力更低的恒定燃料压力的分支通路32; 以及第二电磁阀装置9，其设置在将燃料喷射阀8与燃料箱10连接的燃料返回路径33中，第二电磁阀装置9切换从燃料喷射阀8喷射的燃料在喷射状态和 未注射状态 以及用于在打开第二电磁阀装置9之前打开第一电磁阀装置4然后打开第二电磁阀装置9的控制装置40。