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    • 45. 发明申请
    • MULTI-LOCATION FUEL INJECTION SYSTEM
    • 多位置燃油喷射系统
    • US20060272599A1
    • 2006-12-07
    • US11143884
    • 2005-06-02
    • Daniel Johnson
    • Daniel Johnson
    • F02B33/04F02B25/00F02D13/02
    • F02B25/14F02B17/005F02B25/20F02B33/04F02B2075/025F02M69/046
    • A two-stroke engine having both a direct injector and an indirect injector. The direct injector injects fuel into the cylinder without passing through the crank case. The indirect injector is in fluid communication with the crank case. It provides fuel delivery through the crank case and through a transfer channel to the cylinder. A controller is coupled to the direct injector and to the indirect injector. The controller starts, stops, and varies the fuel delivery of each injector. The controller is programmed to increase the fuel delivery of the indirect injector at a predetermined engine speed. The controller maintains primary fuel flow through the direct injector below a predetermined engine speed. The controller varies the fuel delivery based on at least one of following: engine speed, throttle position, exhaust valve position, intake air temperature, exhaust temperature, barometric pressure, coolant water temperature, and piston position.
    • 具有直接喷射器和间接喷射器的二冲程发动机。 直接喷射器将燃料喷射到气缸中而不通过曲轴箱。 间接喷油器与曲轴箱流体连通。 它通过曲轴箱提供燃料输送,并通过传送通道传送到气缸。 控制器耦合到直接喷射器和间接喷射器。 控制器启动,停止并改变每个喷油器的燃油输送。 控制器被编程为以预定的发动机速度增加间接喷射器的燃料输送。 控制器保持通过直接喷射器的初级燃料流量低于预定的发动机速度。 控制器基于以下至少一个来改变燃料输送:发动机速度,节气门位置,排气门位置,进气温度,排气温度,大气压力,冷却水温度和活塞位置。
    • 46. 发明申请
    • FUEL SUPPLY APPARATUS FOR INTERNAL COMBUSTION ENGINE
    • 内燃机燃油供应装置
    • US20060207563A1
    • 2006-09-21
    • US11362164
    • 2006-02-27
    • Kenichi Kinose
    • Kenichi Kinose
    • F02D41/30
    • F02M69/046F02D41/126F02D41/3094F02D41/3836F02D41/3845F02D41/407F02D2041/3881F02D2041/389F02D2200/0602F02D2250/31F02M63/024F02M63/029
    • A high pressure fuel pump boosts the pressure of fuel to discharge a quantity according to the closing period of an electromagnetic spill valve. A fuel distributor pipe receives and delivers to an in-cylinder injector the fuel discharged from the high pressure fuel pump. A fuel pressure sensor measures a fuel pressure Pt in a fuel distributor pipe. The control of open/closure of the electromagnetic spill valve according to the insufficient fuel pressure with respect to the target pressure of fuel pressure Pt is carried out in a manner similar to that of in-cylinder injection execution even during an in-cylinder injection suppressing period in which fuel is not injected from the in-cylinder injector. Accordingly, fuel pressure can be controlled at high accuracy during the in-cylinder injection suppressing period and subsequent in-cylinder injection resuming time.
    • 高压燃料泵根据电磁溢流阀的关闭周期提高燃料的压力以排放一定数量。 燃料分配管接收并向缸内喷射器输送从高压燃料泵排出的燃料。 燃料压力传感器测量燃料分配管中的燃料压力Pt。 相对于燃料压力Pt的目标压力,根据燃料压力不足来控制电磁溢流阀的开闭控制即使在缸内喷射抑制期间也以与缸内喷射执行相同的方式进行 燃料不从缸内喷射器喷射的时间段。 因此,在缸内喷射抑制期间和随后的缸内喷射恢复时间期间,可以高精度地控制燃料压力。