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    • 22. 发明授权
    • Electroinjector for controlling fuel injection in an internal-combustion engine
    • 用于控制内燃机燃油喷射的电喷射器
    • US07360528B2
    • 2008-04-22
    • US11452391
    • 2006-06-14
    • Mario RiccoSisto Luigi De MatthaeisAntonio GravinaSergio Stucchi
    • Mario RiccoSisto Luigi De MatthaeisAntonio GravinaSergio Stucchi
    • F02M37/04
    • F02D41/20F02D41/403F02D2041/2027
    • An electroinjector is provided for controlling fuel injection in an internal-combustion engine. The electroinjector includes an electroactuator, an injection nozzle, and a pin, which is movable along an opening stroke and a closing stroke for opening/closing the nozzle under the control of the electroactuator and according to the supply pressure of the fuel into the electroinjector. A first electrical command and at least a second electrical command, which are sufficiently close to one another as to displace the pin with a profile of motion without any discontinuity in time, and such as to cause the pin to perform a first opening displacement and, respectively, a second opening displacement, are supplied to the electroactuator. Between one injection and the next, at least one among the following quantities is varied as a function of operating parameters of the engine: duration of at least one among the electrical commands; number of the electrical commands; and distance in time between the electrical commands.
    • 提供一种用于控制内燃机中的燃料喷射的电喷射器。 电喷射器包括电致动器,注射喷嘴和销,其可以在打开行程和用于在电致动器的控制下打开/关闭喷嘴的关闭行程以及根据进入电喷射器的燃料的供应压力移动。 第一电命令和至少第二电命令,其彼此足够接近,以便在没有任何时间上的不连续性的情况下以运动轮廓移位销,并且使得引脚执行第一开启位移, 分别向第二开启位移提供给电致动器。 在一次注射和下一次注射之间,以下量中的至少一个随着发动机的操作参数而变化:电气命令中的至少一个的持续时间; 电气指令数量; 和电气指令之间的时间距离。
    • 24. 发明申请
    • FUEL-INJECTION SYSTEM FOR AN INTERNAL-COMBUSTION ENGINE AND CORRESPONDING METHOD FOR CONTROLLING FUEL INJECTION
    • 内燃机燃油喷射系统及控制燃油喷射的相应方法
    • US20070131789A1
    • 2007-06-14
    • US11391443
    • 2006-03-29
    • Mario RiccoSisto De MatthaeisAntonio GravinaSergio Stucchi
    • Mario RiccoSisto De MatthaeisAntonio GravinaSergio Stucchi
    • F02D1/06
    • F02M47/027F02D41/20F02M45/08F02M45/12F02M63/008F02M2547/003Y10S239/90
    • A fuel-injection system in an internal-combustion engine is provided with an electroinjector (1) comprising an injection nozzle (5), and a needle (7) mobile along an opening stroke and a closing stroke for opening/closing the nozzle (5) under the control of an electroactuator device (8). The opening stroke of the needle (7) is controlled by a rod (14) pushed by the pressure of the fuel in a control chamber (15), in such a way as to keep the needle (7) normally in the position for closing the nozzle (5). The control chamber (15) is equipped with an inlet duct (18) having a pre-set diameter (D4) and with an outlet passage (24) having a diameter (D5) and controlled by a control valve (16). The method for controlling fuel injection comprises the steps of choosing the ratio (D5/D4) of the aforesaid diameters so as to determine a certain rate of displacement of the needle (7), and issuing to the device (8) a first electrical command (C1) and a second electrical command (C2) sufficiently close to one another to displace the needle (7) with a profile of motion (P) without any discontinuities in time.
    • 在内燃机中的燃料喷射系统设置有电喷射器(1),其包括喷射喷嘴(5)和沿打开行程移动的针(7)和用于打开/关闭喷嘴(5)的关闭行程 )在电致动器装置(8)的控制下。 针(7)的打开行程由通过控制室(15)中的燃料压力推动的杆(14)来控制,以使针(7)保持正常的位置 喷嘴(5)。 控制室(15)装备有具有预设直径(D 4 S)的入口管道(18),并且具有直径(D <5> 5)的出口通道(24) / SUB>)并由控制阀(16)控制。 用于控制燃料喷射的方法包括以下步骤:选择上述直径的比(D 5 / D 4/4),以便确定针的一定的位移速率 (7),并且向所述设备(8)发出彼此充分接近的第一电命令(C 1> 1)和第二电命令(C SUB2&lt; 2&gt;)以使位移 具有运动轮廓(P)的针(7)在时间上没有任何不连续性。
    • 26. 发明申请
    • METHOD FOR CONTROLLING FUEL INJECTION IN AN INTERNAL-COMBUSTION ENGINE
    • 用于控制内燃机燃油喷射的方法
    • US20060102154A1
    • 2006-05-18
    • US11109789
    • 2005-04-20
    • Mario RiccoSisto De MatthaeisAntonio GravinaSergio Stucchi
    • Mario RiccoSisto De MatthaeisAntonio GravinaSergio Stucchi
    • F02M51/00H01H47/32
    • F02D41/20F02D41/403F02D2041/2027
    • A method is provided for controlling fuel injection in an internal-combustion engine provided with an electroinjector, including an electroactuator, an injection nozzle, and a pin, which is movable along an opening stroke and a closing stroke for opening/closing the nozzle under the control of the electroactuator and according to the supply pressure of the fuel into the electroinjector. The method supplies to the electroactuator a first electrical command and at least a second electrical command, which are sufficiently close to one another as to displace the pin with a profile of motion without any discontinuity in time, and such as to cause the pin to perform a first opening displacement and, respectively, a second opening displacement. Between one injection and the next, at least one among the following quantities is varied as a function of operating parameters of the engine: duration of at least one among the electrical commands; number of the electrical commands; and distance in time between the electrical commands.
    • 提供了一种用于控制设置有电喷射器的内燃机中的燃料喷射的方法,所述电喷射器包括可沿打开行程运动的电致动器,喷嘴和销,以及用于打开/关闭喷嘴下方的喷嘴的关闭行程 电动执行器的控制和根据燃料进入电喷射器的供应压力。 该方法向电致动器提供第一电命令和至少第二电命令,其彼此足够接近以使运动轮廓移动而没有任何时间上的不连续性,并且使得引脚执行 第一开口位移和第二开口位移。 在一次注射和下一次注射之间,以下量中的至少一个随着发动机的操作参数而变化:电气命令中的至少一个的持续时间; 电气指令数量; 和电气指令之间的时间距离。