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    • 6. 发明申请
    • Air-fuel ratio control system
    • 空燃比控制系统
    • US20120150416A1
    • 2012-06-14
    • US13137017
    • 2011-07-15
    • Tsutomu Murakami
    • Tsutomu Murakami
    • F02D41/26F02D41/30
    • F02D41/1454F02D41/1401F02D41/1497
    • Even if the engine structure is not capable of continuous operation in the vicinity of stoichiometric air-fuel ratio, this engine is in the stoichiometric combustion region when condition such as low load and stable engine rotation is met, and the feedback control using the O2 sensor, although temporary, becomes possible. Therefore, the air-fuel ratio control system performs this feedback, and derives and sets the constant value for correction to attain the air-fuel ratio suited to the engine. Thereafter, the optimal air-fuel ratio is controlled at the normal control mode just by correcting the fuel injection quantity using the constant value.
    • 即使发动机结构在化学计量空燃比附近不能连续运转,在满足低负荷,稳定的发动机转速等条件的情况下,该发动机处于化学计量燃烧区域,使用O 2传感器 虽然是临时的,但成为可能。 因此,空燃比控制系统执行该反馈,并且导出和设定用于校正的常数值以获得适合于发动机的空燃比。 此后,通过使用常数值校正燃料喷射量,将最佳空燃比控制在正常控制模式。
    • 9. 发明申请
    • Fuel injection control apparatus for engine
    • 发动机燃油喷射控制装置
    • US20080312804A1
    • 2008-12-18
    • US12078838
    • 2008-04-07
    • Naoaki Yanagisawa
    • Naoaki Yanagisawa
    • F02D41/30
    • F02D41/182F02D41/0007Y02T10/144
    • A fuel injection control apparatus for an engine which carried out a fuel injection control according to a speed density system which estimates an intake air amount from detected engine rotational speed value and intake pipe pressure value to decide a fuel injection amount, the control apparatus preventing an air fuel ratio from becoming lean due to clogging of an air cleaner, by calculating an intake pipe pressure differential pressure value between an intake pipe pressure average value and an intake pipe pressure minimum value which are continuously detected, and by correcting the fuel injection amount according to a predetermined procedure while using the differential pressure value of the intake pipe pressure.
    • 一种用于发动机的燃料喷射控制装置,其执行根据检测到的发动机转速值和进气管压力值的进气量的速度密度系统的燃料喷射控制,以决定燃料喷射量,所述控制装置防止 通过计算连续检测到的进气管压力平均值和进气管压力最小值之间的进气管压力差值,并且通过校正燃料喷射量来校正燃料喷射量,由于空气滤清器的堵塞而使空燃比变得倾斜 在使用进气管压力的压差值的同时进行预定的过程。
    • 10. 发明申请
    • Fuel supply apparatus of engine
    • 发动机燃油供应装置
    • US20070246020A1
    • 2007-10-25
    • US11727041
    • 2007-03-23
    • Umerujan SawutMasashi IwasakiShinya Yamaguchi
    • Umerujan SawutMasashi IwasakiShinya Yamaguchi
    • F02M37/04
    • F02D41/0025F02D19/022F02D19/027F02D41/3082F02D2200/0602F02D2250/31F02M21/0212F02M21/0245F02M21/06F02M37/0058Y02T10/32
    • The invention can avoid an energy dissipation and a consumption of an apparatus by minimizing a driving amount of a fuel pump and maintain an improved fuel supply state, in a fuel supply system injecting a liquefied gas fuel by an injector and supplying to an engine. In a return-less type engine fuel supply apparatus provided with a fuel supply pipe line (9) extended from a fuel tank (2) and having an injector (8) in a leading end side, a motor-driven fuel pump (3), and an electronic control unit (12) drive controlling the fuel pump (3) and the injector (8), a pressure sensor (13) detecting a fuel pressure so as to output to the electronic control unit (12) is arranged at a position near the injector (8) in the fuel supply pipe line (9) where a fuel pressure approximately coincides with a fuel injection pressure, the electronic control unit feedback controls the operation of the fuel pump (3) on the basis of the detected fuel pressure in such a manner that the fuel injection pressure maintains a predetermined target pressure, and the fuel pump (3) is arranged outside an engine room (50).
    • 本发明可以通过使燃料泵的驱动量最小化并且通过喷射器喷射液化气体燃料并向发动机供应的燃料供给系统来保持改进的燃料供给状态来避免设备的能量消耗和消耗。 在设置有从燃料箱(2)延伸并且在前端侧具有喷射器(8)的燃料供给管路(9)的无返回型发动机燃料供给装置中,电动燃料泵(3) 和控制燃料泵(3)和喷射器(8)的电子控制单元(12),检测燃料压力以便输出到电子控制单元(12)的压力传感器(13)被布置在 在燃料供给管线(9)中靠近燃料压力与燃料喷射压力大致一致的喷射器(8)的位置处,电子控制单元反馈基于检测到的燃料控制燃料泵(3)的操作 燃料喷射压力保持预定的目标压力,燃料泵(3)设置在发动机室(50)的外侧。