公开(公告)号：US20040237930A1

公开(公告)日：2004-12-02

申请号：US10484104

申请日：2004-03-10

发明人： Kiyomi Kawamura ,  Yoshihiro Hotta ,  Yoshifumi Wakisaka ,  Kiyomi Nakakita

IPC分类号： F02B003/00

CPC分类号： F02M59/466 ,  F02M39/005 ,  F02M45/04 ,  F02M45/12 ,  F02M47/027 ,  F02M57/025 ,  F02M59/105 ,  F02M59/34 ,  F02M59/366 ,  F02M63/0033 ,  F02M63/0078 ,  F02M63/0225 ,  F02M63/029 ,  F02M2200/04 ,  F02M2200/21

摘要： A fuel injection device is provided which can inject fuel by very high injection pressure and can realize favorable combustion and exhaust characteristics, and moreover, enables performance of fuel injection with arbitrary fuel injection patterns. In the fuel injection device 30, the protrusion 61 is provided at a distal end portion of the piston control valve 60 which is provided at the pressure intensifier 54, can change a practical opening area of the fuel flow path 57 to the cylinder 56 in accordance with movement of the piston control valve 60, and can control inflow amounts of liquid fuel that is flowed into the cylinder 56 by the piston control valve 60 (does orifice control). Thus, control of injection rates and injection pressures of fuel that is injected from the fuel injection nozzle 34 is enabled, and fuel injection patterns can be realized with an extremely high degree of freedom.

摘要翻译： 提供一种能够以非常高的喷射压力喷射燃料并且可以实现良好的燃烧和排气特性的燃料喷射装置，此外，能够以任意的燃料喷射模式执行燃料喷射。 在燃料喷射装置30中，突起61设置在设置在增压器54处的活塞控制阀60的前端部，能够根据燃料流路57向气缸56改变实际的开口面积 通过活塞控制阀60的运动，并且可以通过活塞控制阀60来控制流入到气缸56中的液体燃料的流入量（进行孔口控制）。 因此，能够控制从燃料喷射喷嘴34喷射的燃料的喷射速度和喷射压力，并且能够以极高的自由度实现燃料喷射模式。

公开(公告)号：US20040099243A1

公开(公告)日：2004-05-27

申请号：US10362083

申请日：2003-08-05

发明人： Gunter Dantes ,  Detlef Nowak

IPC分类号： F02B003/00

CPC分类号： F02M61/188 ,  F02M51/0685 ,  F02M53/04 ,  F02M61/12 ,  F02M61/168 ,  F02M61/18 ,  F02M61/1806 ,  F02M2200/06 ,  F02M2200/306

摘要： A fuel injector (1) for fuel-injection systems of internal combustion engines includes an actuator (10), a valve needle (3), which is able to be activated by the actuator to actuate a valve-closure member (4), which, together with a valve-seat surface (6) formed at a valve-seat member (5), forms a sealing seat; and at least one spray-discharge orifice (7) which is formed in the valve-seat member (5). At a downstream end (42) of the fuel injector (1), a flameproofing screen (37) is positioned, which shields the spray-discharge orifices (7) from the combustion chamber of the internal combustion engine.

摘要翻译： 一种用于内燃机燃料喷射系统的燃料喷射器（1），包括致动器（10），阀针（3），其能够由致动器致动以致动闭阀构件（4），所述阀针 与形成在阀座构件（5）上的阀座表面（6）一起形成密封座; 和形成在所述阀座构件（5）中的至少一个喷射排出口（7）。 在燃料喷射器（1）的下游端（42）处，定位防火屏（37），其将喷射孔（7）从内燃机的燃烧室屏蔽。

公开(公告)号：US20030217732A1

公开(公告)日：2003-11-27

申请号：US10397829

申请日：2003-03-27

发明人： Motoshi Kataoka ,  Hiroshi Hayashibara ,  Yasuyuki Terazawa ,  Tomoaki Saito

IPC分类号： F02B003/00

CPC分类号： F02B1/12 ,  F02B3/06 ,  F02B29/0406 ,  F02B75/02 ,  F02B2275/14 ,  F02D23/00 ,  F02D35/02 ,  F02D41/0057 ,  F02D41/3035 ,  F02D41/3047 ,  F02D41/40 ,  F02D41/402 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02M26/05 ,  F02M26/10 ,  F02M26/23 ,  F02M26/33 ,  F02M26/57 ,  Y02T10/123 ,  Y02T10/44 ,  Y02T10/47

摘要： To suppress deposition of fuel injected at an early timing on a wall surface for preventing the degradation in fuel efficiency and increase in the amount of harmful components in an exhaust gas, in a direct-injection diesel engine which controls the injector to cause a combustion configuration dominated by the compressive ignition of the premixture while the engine is in the premixed combustion region defined on a low load side. When fuel is injected at an early timing to form the premixture, at least one of the pulse width to be inputted into the injector and the fuel pressure is or are adjusted according to the change in the injection timing, and corrected according to the intake air temperature or the intake pressure. If an allowable pulse width is insufficient to inject fuel in the amount corresponding to a target torque, fuel is injected in a divided manner.

摘要翻译： 为了抑制在早期时刻喷射的燃料在壁面上的沉积，以防止燃料效率的降低和废气中的有害成分的量的增加，在控制喷射器以引起燃烧配置的直喷式柴油发动机中 在发动机处于限定在低负荷侧的预混燃烧区域中时，由预混合物的压缩点火主导。 当在早期时刻注入燃料以形成预混物时，要根据喷射正时的变化来调节要输入到喷射器的脉冲宽度和燃料压力中的至少一个，并根据进气校正 温度或进气压力。 如果允许的脉冲宽度不足以将燃料喷射到与目标扭矩相对应的量，则以分开的方式喷射燃料。

公开(公告)号：US20030183178A1

公开(公告)日：2003-10-02

申请号：US10258419

申请日：2003-05-27

发明人： Rinaldo Caprotti ,  Peter Van Leest

IPC分类号： F02B003/00

CPC分类号： F02M25/00 ,  C10L1/143 ,  C10L1/1828 ,  C10L1/189 ,  C10L1/1981 ,  C10L1/2383 ,  C10L1/2437 ,  C10L10/04 ,  F02D19/12

摘要： The operation of marine diesel engines is improved through use of a defined fuel composition, containing one or more additives comprising a methal detergent, a non-metal detergent or both. The fuel is supplied to Diesel engines which operate in a maximum speed range of 1000 rpm (4-stroke engine) respectively 2500 rpm (2-stroke engine). The power output is greater than 200 bph. The cylinder bore is greater than 100 mm (2-stroke engine) while the piston stroke shall be greater than 150 mm (4-stroke engine) respectively greater than 120 mm (2-stroke engine). The metal containing detergent is a neutral calcium sulfonate, salicylate or calcium phenate. The non-metal containing detergent is a hydrocarbyl succinimide.

摘要翻译： 通过使用限定的燃料组合物来改善船用柴油发动机的操作，所述燃料组合物含有一种或多种添加剂，所述添加剂包含微量洗涤剂，非金属洗涤剂或两者。 燃油供应到分别在1000 rpm（4冲程发动机）的最大转速范围（2500 rpm）（二冲程发动机）下运行的柴油发动机。 功率输出大于200 bph。 缸径大于100 mm（二冲程发动机），而活塞行程大于150 mm（四冲程发动机）大于120 mm（二冲程发动机）。 含金属的洗涤剂是中性磺酸钙，水杨酸盐或苯酚钙。 非金属洗涤剂是烃基琥珀酰亚胺。

公开(公告)号：US20030106531A1

公开(公告)日：2003-06-12

申请号：US10310856

申请日：2002-12-06

发明人： Takayuki Saeki ,  Yoshimitsu Takashima

IPC分类号： F02B003/00

CPC分类号： F02D41/3809 ,  F02D35/023 ,  F02D2200/0602

摘要： A fuel injection system carries out a multi-injection. A preceding injection affects a pressure in a combustion chamber at a succeeding injection. In order to ensure an amount and timing of a succeeding injection, the ECU carries out a compensating process. In one embodiment, an injection period for the succeeding injection is corrected by varying a corrective value in accordance with parameters indicative of a pressure deviation. In another embodiment, each of the injection amounts for preceding and succeeding injections is corrected in accordance with deviations from a standard pressure respectively. The deviation is determined based on an intake pressure.

摘要翻译： 燃料喷射系统进行多次喷射。 以前的喷射影响后续喷射时燃烧室中的压力。 为了确保后续喷射的数量和时间，ECU执行补偿处理。 在一个实施例中，通过根据指示压力偏差的参数改变校正值来校正后续喷射的喷射周期。 在另一个实施例中，针对先前和后续注射的每个注射量分别根据标准压力的偏差来校正。 基于进气压力来确定偏差。

公开(公告)号：US20030089340A1

公开(公告)日：2003-05-15

申请号：US10287583

申请日：2002-11-05

申请人： Robert Bosch GmbH

发明人： Peter Boehland

IPC分类号： F02B003/00 ,  F02M001/00

CPC分类号： F02M61/205 ,  F02M45/04 ,  F02M45/12 ,  F02M47/027 ,  F02M57/023 ,  F02M59/366

摘要： For each cylinder of the internal combustion engine, the fuel injection apparatus has a high-pressure fuel pump and a fuel injection valve connected to it. A pump piston of the high-pressure fuel pump defines a pump working chamber connected to a pressure chamber of the fuel injection valve, which has an injection valve member which controls the injection openings and which the pressure prevailing in the pressure chamber can move in an opening direction counter to a closing force. A first control valve controls a connection between the pump working chamber and a relief chamber, and a second control valve controls a connection between the relief chamber and a control pressure chamber, which is connected to the pump working chamber. A control piston, which acts on the injection valve member, has a surface area that is acted on by the pressure prevailing in the control pressure chamber and that is determined in such a way that with a closed second control valve, the force acting on the control piston when the fuel injection valve is open with a partial stroke of the injection valve member is sufficient to close the fuel injection valve, and with a maximal stroke of the injection valve member, this force is not sufficient to close the fuel injection valve.

公开(公告)号：US20030089333A1

公开(公告)日：2003-05-15

申请号：US10299575

申请日：2002-11-19

发明人： Kevin P. Duffy ,  Eric C. Fluga ,  Gregory G. Hafner ,  Brian G. McGee ,  Matthew R. Roth

IPC分类号： F02B003/00

CPC分类号： F02D41/3035 ,  F02B3/06 ,  F02D41/402 ,  F02D41/403 ,  F02D41/405 ,  Y02T10/128 ,  Y02T10/44

摘要： A fuel injection control system and method for delivering multiple fuel injections to a cylinder of an engine during a fuel injection event based upon engine operating conditions, the control system including an electronic controller coupled to an electronically controlled fuel injector, and a plurality of sensors coupled to the controller for inputting certain signals representative of certain engine operating conditions of the engine, the controller being operable to output a fuel injection signal to the fuel injector to deliver a first, a second, and a third fuel shot to the cylinder during a fuel injection event based upon the sensor signals. The controller also delivers each of the multiple fuel injection shots within defined cylinder piston displacement parameters during a particular piston stroke, within defined fuel apportionment limits, and within defined delay limits between each respective fuel shot so as to control exhaust emissions.

公开(公告)号：US20030070652A1

公开(公告)日：2003-04-17

申请号：US10268576

申请日：2002-10-10

申请人： Fuji Jukogyo Kabushiki Kaisha

发明人： Misao Suzuki ,  Hideki Tomiyama ,  Tadao Kuwahara ,  Shinichi Okazaki

IPC分类号： F02B003/00

CPC分类号： F02B75/16 ,  F02B63/04 ,  F02B63/047 ,  F02B2063/045 ,  F02B2063/046

摘要： A frame type engine generator having an engine, a generator connected with the engine and driven by the engine and a supporting frame for supporting the engine and generator therein is closed at the front surface of the supporting frame with a control panel, closed at the rear surface thereof with a muffler cover and closed at the top surface thereof with a fuel tank. To raise a noise reduction performance of the engine generator, the left side surface of the supporting frame is closed with a left panel and the right side surface thereof is closed with a right panel. The left and right panels have a double-walled structure comprising an inner panel and an outer panel, respectively. The left and right panels are detachably attached to the supporting frame through a rubber seal, respectively.

摘要翻译： 具有发动机，与发动机连接并由发动机驱动的发电机的发动机和用于将发动机和发电机支撑在其中的支撑框架的框架式发动机发电机在支撑框架的前表面处被封闭，控制面板在后部闭合 其表面具有消音器盖并且在其顶表面处与燃料箱封闭。 为了提高发动机发电机的噪音降低性能，支撑框架的左侧表面用左面板封闭，右侧表面用右面板封闭。 左右面板分别具有包括内板和外板的双壁结构。 左右面板分别通过橡胶密封件可拆卸地连接到支撑框架上。

公开(公告)号：US20030056736A1

公开(公告)日：2003-03-27

申请号：US10234107

申请日：2002-09-05

发明人： Eduard Unger ,  Alois Fuerhapter ,  Gernot Philipp

IPC分类号： F02B003/00

CPC分类号： F02D41/0057 ,  F02B1/12 ,  F02B75/02 ,  F02D13/0249 ,  F02D35/023 ,  F02D35/025 ,  F02D41/006 ,  F02D41/187 ,  F02D41/3035 ,  F02D41/3064 ,  F02D2041/001 ,  F02D2250/21 ,  Y02T10/128 ,  Y02T10/18 ,  Y02T10/47

摘要： The invention relates to a method for operating an internal combustion engine which is operated in at least one engine operation range in a substantially homogeneous self-ignited manner and in at least a second engine operation range in a substantially homogeneous spark-ignited manner, with a changeover occurring during engine operation between homogeneous self-ignited operation and homogeneous spark-ignited operation depending on the load and vice-versa. In order to enable the changeover process between the engine operation ranges in an engine-protecting and delay-free manner and with low fuel consumption and low emissions it is provided that the homogeneous self-ignition operation is changed into the homogeneous spark-ignition operation and/or the homogeneous spark-ignition operation into the homogeneous self-ignition operation in a transitionless way from one cycle to the next cycle, with an exhaust gas mass which is reduced with respect to the requirements for a stationary homogeneous self-ignition operation being recirculated or left in the cylinder during the changeover process from the homogeneous spark-ignition operation to the homogeneous self-ignition operation.

摘要翻译： 本发明涉及一种操作内燃机的方法，所述内燃机在至少一个发动机运行范围内以基本均匀的自燃方式运行，并且在至少第二发动机运行范围内以基本均匀的火花点火方式工作，其中 在发动机运行过程中，在均匀自燃操作和均匀火花点火操作之间，根据负载而发生转换，反之亦然。 为了能够以发动机保护和无延迟的方式实现发动机运行范围之间的转换处理，并且具有低燃料消耗和低排放，可以将均匀的自燃操作改变成均匀的点火点火操作， /或均质火花点火操作以一个循环到下一个循环的过渡方式进入均匀自点火操作，废气质量相对于静止均匀自燃操作的要求减少而被再循环 或者在从均质火花点火操作到均质自燃操作的转换过程中留在汽缸中。

公开(公告)号：US20030037760A1

公开(公告)日：2003-02-27

申请号：US10213070

申请日：2002-08-07

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Tatsuo Kobayashi

IPC分类号： F02B003/00

CPC分类号： F02B17/005 ,  F02B23/104 ,  F02B2075/125 ,  F02F3/26 ,  F02F2001/245 ,  Y02T10/123 ,  Y02T10/125

摘要： An in-cylinder injection type spark-ignition internal combustion engine includes a spark plug, a fuel injection valve, and a piston having a top face and a cavity formed in a first part of the top face. The cavity is located closer to the fuel injection valve with respect to a center of the piston so as to bring the injected fuel toward the spark plug. A space formed in the cylinder at a top dead center of a compression stroke of the piston includes a first space in which a center of the cavity is located, and a second space. The first space is located on one side of a plane that passes through a center axis of the spark plug in parallel with a center axis of the cylinder and is perpendicular to a radial direction in which the center of the cavity deviates from the center of the piston. The second space is located on the other side of the plane. The top face of the piston is designed so as to reduce a volumetric difference between the first space and the second space, thereby preventing generation of a strong air stream flowing between the first space and the second space at around the top dead center.

摘要翻译： 缸内喷射式火花点火内燃机包括火花塞，燃料喷射阀和具有在顶面的第一部分中形成的顶面和空腔的活塞。 空腔相对于活塞的中心更靠近燃料喷射阀，以将注入的燃料引向火花塞。 在活塞的压缩行程的上止点处形成在气缸中的空间包括空腔中心位于的第一空间和第二空间。 第一空间位于与圆柱体的中心轴平行的火花塞的中心轴线的平面的一侧，并且垂直于空腔的中心偏离中心的径向方向 活塞。 第二个空间位于飞机的另一边。 活塞的顶面被设计成减小第一空间和第二空间之间的体积差，从而防止在上止点附近在第一空间和第二空间之间产生强气流。