Method for cylinder synchronization of an internal combustion engine
    1.
    发明授权
    Method for cylinder synchronization of an internal combustion engine 有权
    内燃机气缸同步方法

    公开(公告)号:US08272361B2

    公开(公告)日:2012-09-25

    申请号:US12444431

    申请日:2008-05-05

    IPC分类号: F02B3/00

    摘要: The aim of the invention is to optimize the running smoothness of an internal combustion engine. To achieve this aim, the individual cylinders are synchronized with respect to their torque contribution. According to the method, fuel is injected into the combustion chamber of a cylinder in at least one injection step, the at least one injection contributing to the torque of the internal combustion engine. Fuel is injected into the combustion chamber of the cylinder in a torque neutral manner by way of a secondary injection during a working stroke of the cylinder and the amount of fuel of the secondary injection us calculated in such a manner that the exhaust gas substantially corresponds to a stoichiometric air/fuel mixture.

    摘要翻译: 本发明的目的是优化内燃机的运行平稳度。 为了实现该目的,各个气缸相对于它们的转矩贡献是同步的。 根据该方法,在至少一个喷射步骤中将燃料喷射到气缸的燃烧室中,所述至少一个喷射有助于内燃机的转矩。 在气缸的工作行程期间,燃料通过二次喷射以扭矩中和的方式喷射到气缸的燃烧室中,并且二次喷射的燃料量以这样的方式计算,使得废气基本上对应于 化学计量空气/燃料混合物。

    METHOD FOR CYLINDER SYNCHRONIZATION OF AN INTERNAL COMBUSTION ENGINE
    2.
    发明申请
    METHOD FOR CYLINDER SYNCHRONIZATION OF AN INTERNAL COMBUSTION ENGINE 有权
    内燃机汽缸同步方法

    公开(公告)号:US20100031919A1

    公开(公告)日:2010-02-11

    申请号:US12444431

    申请日:2008-05-05

    IPC分类号: F02B3/00 F02D43/00 F01N3/10

    摘要: The aim of the invention is to optimize the running smoothness of an internal combustion engine. To achieve this aim, the individual cylinders are synchronized with respect to their torque contribution. According to the method, fuel is injected into the combustion chamber of a cylinder in at least one injection step, the at least one injection contributing to the torque of the internal combustion engine. Fuel is injected into the combustion chamber of the cylinder in a torque neutral manner by way of a secondary injection during a working stroke of the cylinder and the amount of fuel of the secondary injection us calculated in such a manner that the exhaust gas substantially corresponds to a stoichiometric air/fuel mixture.

    摘要翻译: 本发明的目的是优化内燃机的运行平稳性。 为了实现该目的,各个气缸相对于它们的转矩贡献是同步的。 根据该方法,在至少一个喷射步骤中将燃料喷射到气缸的燃烧室中,所述至少一个喷射有助于内燃机的转矩。 在气缸的工作行程期间,燃料通过二次喷射以扭矩中和的方式喷射到气缸的燃烧室中,并且二次喷射的燃料量以这样的方式计算,使得废气基本上对应于 化学计量空气/燃料混合物。

    FUEL SYSTEM, ESPECIALLY OF THE COMMON RAIL TYPE, FOR AN INTERNAL COMBUSTION ENGINE
    3.
    发明申请
    FUEL SYSTEM, ESPECIALLY OF THE COMMON RAIL TYPE, FOR AN INTERNAL COMBUSTION ENGINE 失效
    燃油系统,特别是通用铁路类型,用于内燃机

    公开(公告)号:US20080283026A1

    公开(公告)日:2008-11-20

    申请号:US11935062

    申请日:2007-11-05

    IPC分类号: F02M63/02

    摘要: A fuel system for an internal combustion engine includes at least one first fuel pump and a pressure region into which the fuel pump pumps and which communicates with an elastic volume reservoir. The elastic volume reservoir has a characteristic pressure/volume curve, which is defined by at least two points. It is proposed that a first point is defined by a first volume at a first pressure that is somewhat greater than a vapor pressure of the fuel at ambient temperature, and that a second point is defined by a second volume and a second pressure in the pressure region that corresponds to a maximum pressure; the difference between the first and second volumes corresponds at least approximately and at least to a value by which the volume of the fuel in the pressure region decreases upon cooling down from a maximum temperature to ambient temperature.

    摘要翻译: 用于内燃机的燃料系统包括至少一个第一燃料泵和压力区域,燃料泵泵送并与弹性容积容器连通。 弹性容积储存器具有特征压力/体积曲线,其由至少两个点限定。 建议第一点由在第一压力下的第一容积限定,该第一容积略大于环境温度下的燃料的蒸汽压,而第二点由第二容积和压力的第二压力限定 对应于最大压力的区域; 第一和第二体积之间的差异至少近似且至少相当于当从最高温度冷却到环境温度时,压力区域中的燃料的体积减小的值。

    Fuel supply apparatus for an internal combustion engine
    5.
    发明授权
    Fuel supply apparatus for an internal combustion engine 失效
    用于内燃机的燃料供应装置

    公开(公告)号:US06792915B2

    公开(公告)日:2004-09-21

    申请号:US09928862

    申请日:2001-08-13

    IPC分类号: F22M3704

    摘要: The fuel supply apparatus for supplying fuel to an internal combustion engine has a fuel tank (2), a first fuel pump (6) that supplies fuel from the fuel tank to a fuel line (10), a second fuel pump (12) that supplies fuel from the fuel line (10) via a pressurized line to at least one fuel valve (16) and a fuel return line (22) that connects the fuel line (10) to the fuel tank for return of excess fuel. A shut off valve (30), which is closed at high temperatures, and a pressure regulator valve (26) are arranged hydraulically in series in the fuel return line (22). A fuel scavenger line (60) is provided, by which fuel at high temperatures is returned to the fuel tank (2). The fuel scavenger line (60) conducts the fuel back to the fuel tank (2), at least partially through the second fuel pump (12) and through a hydraulic resistance. Gas bubble formation is prevented by a high fuel supply pressure and by transfer of heat from the second fuel pump (12).

    摘要翻译: 用于向内燃机供给燃料的燃料供给装置具有燃料箱(2),将燃料从燃料箱供给到燃料管路(10)的第一燃料泵(6),第二燃料泵(12) 将来自燃料管线(10)的燃料经由加压管线供应到将燃料管线(10)连接到燃料箱以返回多余燃料的至少一个燃料阀(16)和燃料返回管线(22)。 在高温下关闭的截止阀(30)和压力调节阀(26)在燃料返回管线(22)中液压地排列。 提供了一种燃料清理线(60),通过该燃料清除线(60)将高温燃料返回到燃料箱(2)。 燃料清除线(60)至少部分地通过第二燃料泵(12)并通过液压阻力将燃料返回到燃料箱(2)。 通过高燃料供给压力和通过从第二燃料泵(12)传递热来防止气泡形成。

    Method for the operation of an internal combustion engine
    7.
    发明授权
    Method for the operation of an internal combustion engine 有权
    内燃机运转方法

    公开(公告)号:US07946280B2

    公开(公告)日:2011-05-24

    申请号:US12176792

    申请日:2008-07-21

    IPC分类号: F02B13/00

    摘要: The invention deals with a method for the operation of an internal combustion engine with at least two cylinders, which can be operated with a fuel of variable quality stored in a tank and/or with fuel blends stored in the tank from a first and at least a second fuel in variable mixing ratios, and wherein variable fuel qualities and/or fuel blends of different compositions require variable air/fuel ratios for the achievement of a stable combustion and/or have a variable vaporization behavior. Provision is, thereby, made for a variation, which is individually adjusted to each cylinder, of the quantity of fuel delivered to the cylinder to be implemented to supply a lean and/or to a rich air/fuel mixture at least one cylinder, for the effect of the variation on the starting characteristics and/or the running smoothness of the cylinder and/or the internal combustion engine to be evaluated and when an improvement in the starting characteristics and/or the running smoothness is achieved, for a fuel adaptation to be implemented for all cylinders. The method makes the quick detection and the avoidance of starting problems possible, when a change in the fuel quality or in the fuel composition occurs with an effect on the ignitability of the fuel.

    摘要翻译: 本发明涉及一种用于操作具有至少两个气缸的内燃机的方法,所述至少两个气缸可以使用储存在罐中的可变质量燃料和/或从储存在罐中的燃料混合物从第一和至少 可变混合比的第二燃料,并且其中不同组成的可变燃料质量和/或燃料混合物需要可变的空气/燃料比以实现稳定的燃烧和/或具有可变的汽化行为。 因此,为了对每个气缸分别调整输送到气缸的燃料量进行变化以供给稀释物和/或至少一个气缸的富空气/燃料混合物的设备,用于 对待评估的气缸和/或内燃机的启动特性和/或运行平稳度的影响以及当实现起动特性和/或运行平稳度的改善时,对于适于 适用于所有气瓶。 当燃料质量的改变或燃料组成的变化对燃料的可燃性产生影响时,该方法可以快速检测和避免起动问题。

    Fuel system, especially of the common rail type, for an internal combustion engine
    9.
    发明授权
    Fuel system, especially of the common rail type, for an internal combustion engine 失效
    用于内燃机的燃油系统,特别是共轨式燃油系统

    公开(公告)号:US07644699B2

    公开(公告)日:2010-01-12

    申请号:US11935062

    申请日:2007-11-05

    IPC分类号: F02M63/00 F02M63/02

    摘要: A fuel system for an internal combustion engine includes at least one first fuel pump and a pressure region into which the fuel pump pumps and which communicates with an elastic volume reservoir. The elastic volume reservoir has a characteristic pressure/volume curve, which is defined by at least two points. It is proposed that a first point is defined by a first volume at a first pressure that is somewhat greater than a vapor pressure of the fuel at ambient temperature, and that a second point is defined by a second volume and a second pressure in the pressure region that corresponds to a maximum pressure; the difference between the first and second volumes corresponds at least approximately and at least to a value by which the volume of the fuel in the pressure region decreases upon cooling down from a maximum temperature to ambient temperature.

    摘要翻译: 用于内燃机的燃料系统包括至少一个第一燃料泵和压力区域,燃料泵泵送并与弹性容积容器连通。 弹性容积储存器具有特征压力/体积曲线,其由至少两个点限定。 建议第一点由在第一压力下的第一容积限定,该第一容积略大于环境温度下的燃料的蒸汽压,而第二点由第二容积和压力的第二压力限定 对应于最大压力的区域; 第一和第二体积之间的差异至少近似且至少相当于当从最高温度冷却到环境温度时,压力区域中的燃料的体积减小的值。

    METHOD FOR THE OPERATION OF AN INTERNAL COMBUSTION ENGINE
    10.
    发明申请
    METHOD FOR THE OPERATION OF AN INTERNAL COMBUSTION ENGINE 有权
    内燃机运行方法

    公开(公告)号:US20090025695A1

    公开(公告)日:2009-01-29

    申请号:US12176792

    申请日:2008-07-21

    IPC分类号: F02B43/00

    摘要: The invention deals with a method for the operation of an internal combustion engine with at least two cylinders, which can be operated with a fuel of variable quality stored in a tank and/or with fuel blends stored in the tank from a first and at least a second fuel in variable mixing ratios, and wherein variable fuel qualities and/or fuel blends of different compositions require variable air/fuel ratios for the achievement of a stable combustion and/or have a variable vaporization behavior. Provision is, thereby, made for a variation, which is individually adjusted to each cylinder, of the quantity of fuel delivered to the cylinder to be implemented to supply a lean and/or to a rich air/fuel mixture at least one cylinder, for the effect of the variation on the starting characteristics and/or the running smoothness of the cylinder and/or the internal combustion engine to be evaluated and when an improvement in the starting characteristics and/or the running smoothness is achieved, for a fuel adaptation to be implemented for all cylinders.The method makes the quick detection and the avoidance of starting problems possible, when a change in the fuel quality or in the fuel composition occurs with an effect on the ignitability of the fuel.

    摘要翻译: 本发明涉及一种用于操作具有至少两个气缸的内燃机的方法,所述至少两个气缸可以使用储存在罐中的可变质量燃料和/或从储存在罐中的燃料混合物从第一和至少 可变混合比的第二燃料,并且其中不同组成的可变燃料质量和/或燃料混合物需要可变的空气/燃料比以实现稳定的燃烧和/或具有可变的汽化行为。 因此,为了对每个气缸分别调整输送到气缸的燃料量进行变化以供给稀释物和/或至少一个气缸的富空气/燃料混合物的设备,用于 对待评估的气缸和/或内燃机的启动特性和/或运行平稳度的影响以及当实现起动特性和/或运行平稳度的改善时,对于适于 适用于所有气瓶。 当燃料质量的改变或燃料组成的变化对燃料的可燃性产生影响时,该方法可以快速检测和避免起动问题。