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    METHOD AND A DEVICE FOR SUPPLYING FUEL TO A COMBUSTION CHAMBER
    41.
    发明申请
    METHOD AND A DEVICE FOR SUPPLYING FUEL TO A COMBUSTION CHAMBER 有权
    用于向燃烧室供应燃料的方法和装置

    公开(公告)号：US20040094118A1

    公开(公告)日：2004-05-20

    申请号：US10604475

    申请日：2003-07-24

    申请人： VOLVO AERO CORPORATION

    发明人： Bertil JONSSON

    IPC分类号： F02B003/00

    CPC分类号： F02C9/26 ,  F02C7/228 ,  F02C9/34 ,  F23D2900/00014 ,  F23D2900/00015 ,  F23K5/04 ,  F23N1/007 ,  F23N2027/02 ,  F23N2027/22

    摘要： Method and device (1) for supplying fuel to a combustion chamber that includes at least one main injector (3) and at least one pilot injector (2). The device includes a fuel tank (4), a line system (5) coupled from the fuel tank to the injectors (2, 3), a pump (6) for pumping fuel from the tank to the injectors, and a first regulator valve (7) for regulating the flow of fuel in a first line (8) in the system which is connected to the pilot injector (2). The device further includes a second regulator valve (9) for regulating the flow of fuel through a second line (10) in the system, which is connected to the pilot injector (2). The second regulator valve (9) is designed to regulate a substantially smaller flow than the first regulator valve (7).

    摘要翻译： 用于向包括至少一个主喷射器（3）和至少一个引燃喷射器（2）的燃烧室供应燃料的方法和装置（1）。 所述装置包括燃料箱（4），从所述燃料箱与所述喷射器（2,3）联接的管线系统（5），用于将燃料从所述罐泵送到所述喷射器的泵（6）和第一调节阀 （7），用于调节连接到先导喷射器（2）的系统中的第一管线（8）中的燃料流。 该装置还包括第二调节阀（9），用于调节通过系统中连接到引燃喷射器（2）的第二管线（10）的燃料流。 第二调节阀（9）被设计成调节比第一调节阀（7）大得多的流量。

    Method, computer program and control and/or regulating appliance for operating an internal combustion engine, and corresponding internal combustion engine
    42.
    发明申请
    Method, computer program and control and/or regulating appliance for operating an internal combustion engine, and corresponding internal combustion engine 失效
    用于操作内燃机的方法，计算机程序和控制和/或调节装置以及相应的内燃机

    公开(公告)号：US20040040534A1

    公开(公告)日：2004-03-04

    申请号：US10467527

    申请日：2003-08-08

    发明人： Werner Herden

    IPC分类号： F02B003/00

    CPC分类号： F02D41/402 ,  F02B2075/125 ,  F02D2041/389 ,  Y02T10/123 ,  Y02T10/44

    摘要： An internal combustion engine (10), especially of a motor vehicle, is operated with a method wherein the fuel is injected directly into a combustion chamber (12) of the internal combustion engine (10) with at least one injection (36) per work cycle. In order to reduce the fuel consumption and to improve the emission performance of the internal combustion engine (10), it is suggested that a fuel injection (36) includes a plurality of short injection pulses (32) spaced in time from each other.

    摘要翻译： 一种特别是机动车辆的内燃机（10）以一种方法操作，其中将燃料直接注入到内燃机（10）的燃烧室（12）中，每次工作至少进行一次喷射（36次） 周期。 为了减少燃料消耗并改善内燃机（10）的排放性能，建议燃料喷射（36）包括彼此间隔开的多个短喷射脉冲（32）。

    Method for operating a pump-nozzle unit and a corresponding pump-nozzle unit
    43.
    发明申请
    Method for operating a pump-nozzle unit and a corresponding pump-nozzle unit 审中-公开
    用于操作泵喷嘴单元和相应的泵喷嘴单元的方法

    公开(公告)号：US20040020458A1

    公开(公告)日：2004-02-05

    申请号：US10297218

    申请日：2003-04-23

    发明人： Roger Potschin

    IPC分类号： F02B003/00

    CPC分类号： F02M45/06 ,  F02M45/08 ,  F02M57/022 ,  F02M59/366 ,  F02M61/205

    摘要： A unit fuel injector (10) is used to inject fuel into the combustion chamber of an internal combustion engine. This is accomplished by opening a valve element (28) counter to a valve prestressing force by means of increasing a system pressure. Moreover, the system pressure is raised to a value above a normal valve opening pressure, so that the valve element opens for a main injection counter to the valve prestressing force. While the system pressure is being raised, the valve prestressing force is also increased, in such a way that a valve closing pressure that is increased because of the increased valve prestressing force is always below the system pressure. The system pressure is then lowered and to a value below the valve closing pressure, so that the valve element closes. Next, the system pressure is increased again, so that the valve element opens for a postinjection, at a valve opening pressure that is increased because of the increased valve prestressing force. Finally, the system pressure is lowered again, and the valve prestressing force is lowered as well, so that the valve element (28) closes.

    摘要翻译： 单元燃料喷射器（10）用于将燃料喷射到内燃机的燃烧室中。 这是通过通过增加系统压力打开阀元件（28）来抵抗阀预应力来实现的。 此外，系统压力升高到高于正常阀打开压力的值，使得阀元件打开用于主喷射，与阀预应力相反。 当系统压力升高时，阀预应力也增加，使得由于增加的阀预应力而增加的阀关闭压力始终低于系统压力。 然后将系统压力降低到低于阀关闭压力的值，使得阀元件关闭。 接下来，再次增加系统压力，使得阀元件在后喷射时打开，由于增加了阀预应力，阀打开压力增加。 最后，系统压力再次降低，并且阀预应力也降低，使得阀元件（28）关闭。

    FUEL INJECTION QUANTITY CONTROL SYSTEM FOR ENGINE
    44.
    发明申请
    FUEL INJECTION QUANTITY CONTROL SYSTEM FOR ENGINE 有权
    发动机燃油喷射量控制系统

    公开(公告)号：US20030233997A1

    公开(公告)日：2003-12-25

    申请号：US10464455

    申请日：2003-06-19

    发明人： Yoshio Kawaguchi ,  Katsuhiko Takeuchi

    IPC分类号： F02B003/00

    CPC分类号： F02D41/402 ,  F02D41/0085 ,  F02D41/08 ,  F02D41/1498 ,  F02D41/221 ,  F02D41/247 ,  F02D41/248 ,  F02D2200/0602 ,  F02D2200/1015 ,  Y02T10/44

    摘要： An injection quantity control system for an internal combustion engine stores a value Qb, which is a sum of an FCCB correction value and an ISC correction value corresponding to an injection frequency of K times per combustion in multi-injection in an idling stabile state of the engine. The system stores a value Qc, which is a sum of the FCCB correction value and the ISC correction value corresponding to the injection frequency of N times. Based on a difference between the values Qb and Qc, a final learning value (Q1/K or Q1/N) is calculated. Thus, an injector individual difference, an inter-cylinder injection quantity variation, and an injector aging deterioration quantity can be discriminated from an increase in an engine-demanded injection quantity due to an engine load factor.

    摘要翻译： 用于内燃机的喷射量控制系统存储值为Qb，该值为FCCB校正值和对应于在多次喷射中的每次燃烧K次的喷射频率的和/ 发动机。 该系统存储作为FCCB校正值与对应于N次喷射频率的ISC校正值之和的值Qc。 基于值Qb和Qc之间的差异，计算最终学习值（Q1 / K或Q1 / N）。 因此，可以根据发动机负载因子来判断发动机要求的喷射量的增加来区分喷射器个体差异，缸间喷射量变化和喷射器老化劣化量。

    Internal-combustion engine with fuel injection device
    46.
    发明申请
    Internal-combustion engine with fuel injection device 失效

    公开(公告)号：US20030172902A1

    公开(公告)日：2003-09-18

    申请号：US10385845

    申请日：2003-03-12

    发明人： Bertrand Gatellier ,  Bruno Walter

    IPC分类号： F02B003/00

    CPC分类号： F02M61/1806 ,  F02B1/12 ,  F02B3/06 ,  F02B23/0651 ,  F02B23/0669 ,  F02B23/0696 ,  F02B31/00 ,  F02B2275/14 ,  F02F3/26 ,  F02F2001/247 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/146

    摘要： The present invention relates to a direct-injection internal-combustion engine comprising at least a cylinder (10), a cylinder head (12), a piston (22) sliding in this cylinder, intake means (14, 18) for at least one gaseous fluid, a multijet fuel-injection nozzle (24) comprising a fuel jet angle (null) and a fuel jet nappe angle (a1), and a combustion chamber delimited on one side by the upper face of piston (22), said face comprising a teat (36) pointing towards the cylinder head and arranged in a concave bowl (34). According to the invention, jet angle (null) between two consecutive axes (32) of fuel jets (30) is at least equal to 1 10 null null FD , where FD is the diameter of the bottom of bowl (34), and nappe angle (a1) is less than or equal to 2 2 null Arctg null CD 2 null F , where CD is the diameter of cylinder (10) and F the distance between the point of origin of the fuel jets and the position of the piston corresponding to a crankshaft angle of 50null in relation to the top dead center.

    AUTOMATED ELECTRONIC TRIM FOR A FUEL INJECTOR
    48.
    发明申请
    AUTOMATED ELECTRONIC TRIM FOR A FUEL INJECTOR 有权
    燃料喷射器的自动电子枪

    公开(公告)号：US20030111043A1

    公开(公告)日：2003-06-19

    申请号：US10024428

    申请日：2001-12-18

    发明人： William J. Rodier

    IPC分类号： F02B003/00

    CPC分类号： F02D41/008 ,  F02D41/2432 ,  F02D41/2438 ,  F02D41/2467 ,  F02D41/3005 ,  F02D41/402 ,  F02D41/403 ,  F02D41/405 ,  F02D2200/023 ,  F02D2200/0602 ,  F02M45/02 ,  F02M57/025 ,  Y02T10/44

    摘要： A method and apparatus for trimming a fuel injector that delivers multiple injections or injection segments per engine cycle is provided. Trimming a fuel injector comprises determining a first fuel quantity to be delivered by the plurality of injectors, partially suspending fuel delivery by one selected injector, determining a second fuel quantity, and determining a fuel characteristic of the selected injector in response to the first and second fuel quantities.

    摘要翻译： 提供了一种用于修整燃料喷射器的方法和装置，该燃料喷射器每个发动机循环输送多个喷射段或喷射段。 修整燃料喷射器包括确定要由多个喷射器输送的第一燃料量，部分地暂停一个选定的喷射器的燃料输送，确定第二燃料量，以及响应于第一和第二喷射器确定所选择的喷射器的燃料特性 燃料量。

    Common rail fuel injection device
    50.
    发明申请
    Common rail fuel injection device 有权

    公开(公告)号：US20030089332A1

    公开(公告)日：2003-05-15

    申请号：US09990927

    申请日：2001-11-14

    发明人： Koichiro Yomogida

    IPC分类号： F02B003/00

    CPC分类号： F02D41/20 ,  F02B3/06 ,  F02D41/402 ,  F02D41/403 ,  F02D2041/2013 ,  F02M47/027 ,  F02M63/0225 ,  Y02T10/44

    摘要： A common rail fuel injection device for ensuring the main injection start timing by correcting a pulse start time of a main injection command pulse, in accordance with the length of an interval between the main injection and a pilot injection. The recovery degree of current energy for driving an injector varies in accordance with the length of the interval Tint from a pilot injection end (T4) to an main injection start time (T6), and this variation affects the main injection start time. By taking a longer value for an injector drive delay time (Td) as the length of the interval Tint is shorter, a pulse start time (T5) of a main injection command pulse CPm for performing the main injection is corrected as a more advanced timing, and hence the fuel injection for the main injection can be performed at a prescribed injection start timing.