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    • 63. 发明申请
    • INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
    • 内燃机喷油系统
    • US20110126805A1
    • 2011-06-02
    • US12674464
    • 2008-08-01
    • Christoph KlesseUwe Lingener
    • Christoph KlesseUwe Lingener
    • F02D41/38F02M63/02
    • F02M63/025F02M2200/24
    • An injection system for an internal combustion engine has a prefeed pump for feeding fuel from a fuel tank, a high-pressure pump, which is situated downstream of the prefeed pump, for feeding the fuel into at least two injectors, a fuel distributor which is situated downstream of the high-pressure pump and which is designed to distribute the fuel to the injectors, a pressure control or pressure limiting valve situated downstream of the high-pressure pump and by which the pressure to be produced in the fuel distributor can be adjusted or limited, and a pressure sensor for determining a pressure downstream of the high-pressure pump and upstream of the pressure control or pressure limiting valve, wherein the pressure sensor, the pressure control or pressure limiting valve and the fuel distributor are formed in a high-pressure module, and the high-pressure module is formed as a structural unit with the high-pressure pump.
    • 用于内燃机的喷射系统具有用于从燃料箱供给燃料的预制泵,位于预制泵下游的用于将燃料供给到至少两个喷射器中的高压泵,燃料分配器 位于高压泵的下游并且被设计成将燃料分配到喷射器,位于高压泵下游的压力控制或限压阀,并且能够调节在燃料分配器中产生的压力 或压力传感器,压力传感器,压力控制或压力限制阀以及燃料分配器形成为高压或压力限制阀。 压力模块,高压模块形成为高压泵的结构单元。
    • 64. 发明申请
    • INJECTION ABNORMALITY DETECTION METHOD AND COMMON RAIL FUEL INJECTION CONTROL SYSTEM
    • 注射异常检测方法和通用燃油注射控制系统
    • US20110030655A1
    • 2011-02-10
    • US12937097
    • 2009-04-09
    • Hirotaka Kaneko
    • Hirotaka Kaneko
    • F02M69/46G01M15/04
    • F02D41/22F02D41/3854F02D2041/224F02D2200/0602F02M59/366F02M63/025
    • To reliably detect, without adding new parts, injection abnormality not only when fuel injection is not performed but also including fuel injection in a state where the injection quantity has fallen abnormally low.In a state where a flow rate control valve 8 is controlled in a closed loop, a pressure control valve 12 is controlled in an open loop and a quantity (indicated injection quantity) Q of fuel that should be injected from fuel injection valves 13 arithmetically calculated by predetermined arithmetic processing on the basis of the operating state of an engine exceeds zero (S100 and S102), when it has been determined that the difference between a minimum fuel through-flow rate β in the flow rate control valve 8 determined by a predetermined map from an engine speed Ne and the indicated injection quantity Q and a fuel through-flow rate α decided in closed loop control of the flow rate control valve 8 is larger than a predetermined threshold value K (S112), it is determined there is injection abnormality (S114).
    • 为了在不添加新的部件的情况下可靠地检测喷射异常,不仅在不进行燃料喷射的情况下,而且在喷射量异常低的状态下也包括燃料喷射。 在将流量控制阀8控制在闭环的状态下,将压力控制阀12控制在开环中,并且从燃料喷射阀13喷射的燃料量(指示喷射量)Q被算出 通过基于发动机的运转状态的预定运算处理超过零(S100和S102),当确定最小燃料通过流量与bgr之间的差时, 在根据发动机转速Ne的预定映射确定的流量控制阀8和指示喷射量Q以及在流量控制阀8的闭环控制中确定的燃料通过流量α大于预定阈值 K(S112),判定为注入异常(S114)。
    • 65. 发明申请
    • FUEL SUPPLY APPARATUS OF INTERNAL COMBUSTION ENGINE AND CONTROL DEVICE OF FUEL SUPPLY APPARATUS
    • 内燃机燃油供应装置及燃油供应装置控制装置
    • US20100307460A1
    • 2010-12-09
    • US12811027
    • 2008-08-01
    • Hiroshi MatsukiHirotaka KanekoMuneyuki Yoshida
    • Hiroshi MatsukiHirotaka KanekoMuneyuki Yoshida
    • F02M37/00
    • F02D41/06F02D41/3863F02D2200/0602F02D2200/0606F02D2250/02F02M59/06F02M59/102F02M63/025F02M63/0265F02M2200/60
    • A fuel supply apparatus of an internal combustion engine is provided which can discharge air bubbles or air from within fuel supply paths while increasing pressure within a common rail up to a predetermined pressure level before a start of the internal combustion engine, can reduce a period of time of cranking from when an ignition switch is switched on and which can reduce noise that occurs when the air bubbles or air are being discharged.The fuel supply apparatus is provided with a flow rate control valve that adjusts a flow rate of fuel supplied to the common rail and a pressure control valve that reduces the pressure within the common rail. The fuel supply apparatus is further provided with: a pre-start drive control portion that performs a pre-start drive of an electromagnetic low pressure pump before the start of the internal combustion engine; a flow rate control valve control portion that maintains the flow rate control valve in an open state while the pre-start drive is being performed; and a pressure control valve control portion that maintains the pressure control valve in a closed state and performs a control that opens the pressure control valve at least once for a short time period while the pre-start drive is being performed.
    • 提供一种内燃机的燃料供给装置,其能够在内燃机启动之前将公用轨道内的压力提高到预定压力水平的同时从燃料供给路径内排出气泡或空气, 当点火开关接通时可以起动起动时间,并且可以降低当气泡或空气排出时发生的噪音。 燃料供给装置设置有调节供给共轨的燃料的流量的流量控制阀和降低共轨内的压力的压力控制阀。 燃料供给装置还具备:起动前驱动控制部,其在内燃机启动前进行电磁低压泵的预启动驱动; 流量控制阀控制部,其在进行所述预启动驱动时将所述流量控制阀维持在打开状态; 以及压力控制阀控制部,其将所述压力控制阀保持在关闭状态,并且执行在执行所述预启动驱动时短时间内至少打开所述压力控制阀的控制。
    • 67. 发明授权
    • Return-flow electronic fuel pressure regulator
    • 回流电子燃油压力调节器
    • US07810470B2
    • 2010-10-12
    • US12221737
    • 2008-08-06
    • Robert E. Scharfenberg
    • Robert E. Scharfenberg
    • F02M1/00
    • F02D41/3863F02D41/3845F02D2250/31F02M63/025F02M69/54
    • A return-flow electronic fuel pressure regulator for a fuel-injected engine fuel system is plumbed to the fuel rail and return line of the fuel system. The regulator includes a fill chamber connected to the fuel rail, a return chamber connected to the return line and a return reservoir disposed between the fill chamber and return chamber. Fuel flow from the fill chamber to the return reservoir is regulated via a diaphragm valve assembly. Fuel flow from the return reservoir to the return chamber is subject to restriction by an adjustable valve. Integral comparative pressure sensing means measures the fuel pressure drop between the return reservoir and return chamber. An electronic control module, preferably programmed to maintain a constant pressure drop between the return reservoir and return chamber, receives a signal from the pressure sensing means and outputs a power supply signal to the fuel pump to control pump speed.
    • 用于燃料喷射的发动机燃料系统的回流电子燃料压力调节器被引到燃料系统的燃料轨和返回管路。 调节器包括连接到燃料轨道的填充室,连接到返回管线的返回室和设置在填充室和返回室之间的回流容器。 通过隔膜阀组件调节从填充室到返回储存器的燃料流量。 从返回容器到返回室的燃料流量受到可调节阀的限制。 积分比较压力传感装置测量回油罐和回油室之间的燃油压降。 一个电子控制模块,优选被编程为在回流储存器和返回室之间保持恒定的压力降,从压力感测装置接收信号,并向燃料泵输出电源信号以控制泵速。
    • 68. 发明申请
    • PRESSURE ACCUMULATION FUEL INJECTION DEVICE
    • 压力蓄能燃油喷射装置
    • US20100192910A1
    • 2010-08-05
    • US12640593
    • 2009-12-17
    • Yoshio TOYOSHIMA
    • Yoshio TOYOSHIMA
    • F02M69/46G01M15/04
    • F02D41/222F02D41/3836F02D2200/0602F02M63/025F02M2200/18G01L23/24
    • When change of fuel pressure sensed with a fuel pressure sensor is small, it is temporarily determined that the fuel pressure sensor is abnormal. After the abnormality is temporarily determined, transfer quantity from a high-pressure fuel supply pump is increased and pressure reduction is performed by driving a pressure reducing valve, thereby increasing the change of the fuel pressure of a common rail. When the change of the fuel pressure sensed with the fuel pressure sensor is small thereafter, it is formally determined that the fuel pressure sensor is abnormal. Thus, a pressure accumulation fuel injection device can appropriately perform abnormality detection of the fuel pressure sensor, irrespective of existence/nonexistence of fuel leak from an injector.
    • 当利用燃料压力传感器检测到的燃料压力的变化小时,临时确定燃料压力传感器异常。 在临时确定异常之后,通过驱动减压阀来增加来自高压燃料供给泵的转移量,并进行减压,从而增加共轨的燃料压力的变化。 此后,当用燃料压力传感器检测到的燃料压力的变化小时,正式确定燃料压力传感器异常。 因此,压力累积燃料喷射装置可以适当地执行燃料压力传感器的异常检测,而不管喷射器是否存在燃料泄漏。