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    • 2. 发明授权
    • Method of starting spark ignition engine without using starter motor
    • 不使用起动马达启动火花点火发动机的方法
    • US07461621B2
    • 2008-12-09
    • US11533040
    • 2006-09-19
    • Noriyuki OtaMasahiko FujimotoYasushi MurakamiKeiji ArakiKazuya Yokota
    • Noriyuki OtaMasahiko FujimotoYasushi MurakamiKeiji ArakiKazuya Yokota
    • F02N17/00F02N17/08
    • F02B23/104F02B2023/085F02B2075/125F02D13/0207F02D13/0234F02D41/062F02M26/13F02N19/005F02N99/006F02N2019/007F02P5/1506F02P15/08Y02T10/123Y02T10/125Y02T10/18
    • There is provided a method of starting a spark ignition engine having multiple cylinders. The method comprises supplying air and fuel for restart into a first cylinder before the engine completely stops, and igniting the mixture of the air and the fuel in the first cylinder in response to an engine start request. In accordance with the method, by supplying air and fuel into the first cylinder before the engine completely stops, the mixture of air and fuel in the first cylinder may be homogeneous at the time of the engine start request. Also, there may be less mixture turbulence and combustion may propagate better within the cylinder. These conditions may reduce the rate of combustion in the first cylinder after a start request is initiated. The slower combustion rate may decrease temperature of the combusted gas while the cylinder wall temperature is relatively low because the engine has stopped. As a result, the slower combustion may reduce heat loss in the first cylinder because of the smaller difference between the temperatures of the combusted gas and the cylinder wall. Consequently, more energy may be directed from the first cylinder to the crankshaft, so that the engine restart becomes more reliable.
    • 提供了一种起动具有多个气缸的火花点火发动机的方法。 该方法包括在发动机完全停止之前将空气和燃料重新启动进入第一气缸,并响应于发动机起动请求点燃第一气缸中的空气和燃料的混合物。 根据该方法,通过在发动机完全停止之前将空气和燃料供应到第一气缸中,在发动机起动请求时,第一气缸中的空气和燃料的混合物可以是均匀的。 此外,可能会有较少的混合物紊流,并且燃烧可能在气缸内更好地传播。 这些条件可以在开始启动请求之后降低第一气缸中的燃烧速率。 由于发动机停止,较慢的燃烧速率可能降低燃烧气体的温度,同时气缸壁温度相对较低。 结果,较慢的燃烧可以减少第一气缸中的热损失,因为燃烧气体和气缸壁的温度之间的差别较小。 因此,更多的能量可以从第一气缸引导到曲轴,使得发动机重起变得更可靠。
    • 3. 发明申请
    • METHOD OF STARTING SPARK IGNITION ENGINE WITHOUT USING STARTER MOTOR
    • 不使用起动电机启动火花点火发动机的方法
    • US20070062476A1
    • 2007-03-22
    • US11533040
    • 2006-09-19
    • Noriyuki OtaMasahiko FujimotoYasushi MurakamiKeiji ArakiKazuya Yokota
    • Noriyuki OtaMasahiko FujimotoYasushi MurakamiKeiji ArakiKazuya Yokota
    • F02N17/00F02M1/00
    • F02B23/104F02B2023/085F02B2075/125F02D13/0207F02D13/0234F02D41/062F02M26/13F02N19/005F02N99/006F02N2019/007F02P5/1506F02P15/08Y02T10/123Y02T10/125Y02T10/18
    • There is provided a method of starting a spark ignition engine having multiple cylinders. The method comprises supplying air and fuel for restart into a first cylinder before the engine completely stops, and igniting the mixture of the air and the fuel in the first cylinder in response to an engine start request. In accordance with the method, by supplying air and fuel into the first cylinder before the engine completely stops, the mixture of air and fuel in the first cylinder may be homogeneous at the time of the engine start request. Also, there may be less mixture turbulence and combustion may propagate better within the cylinder. These conditions may reduce the rate of combustion in the first cylinder after a start request is initiated. The slower combustion rate may decrease temperature of the combusted gas while the cylinder wall temperature is relatively low because the engine has stopped. As a result, the slower combustion may reduce heat loss in the first cylinder because of the smaller difference between the temperatures of the combusted gas and the cylinder wall. Consequently, more energy may be directed from the first cylinder to the crankshaft, so that the engine restart becomes more reliable.
    • 提供了一种起动具有多个气缸的火花点火发动机的方法。 该方法包括在发动机完全停止之前将空气和燃料重新启动进入第一气缸,并响应于发动机起动请求点燃第一气缸中的空气和燃料的混合物。 根据该方法,通过在发动机完全停止之前将空气和燃料供应到第一气缸中,在发动机起动请求时,第一气缸中的空气和燃料的混合物可以是均匀的。 此外,可能会有较少的混合物紊流,并且燃烧可能在气缸内更好地传播。 这些条件可以在开始启动请求之后降低第一气缸中的燃烧速率。 由于发动机停止,较慢的燃烧速率可能降低燃烧气体的温度,同时气缸壁温度相对较低。 结果,较慢的燃烧可以减少第一气缸中的热损失,因为燃烧气体和气缸壁的温度之间的差别较小。 因此,更多的能量可以从第一气缸引导到曲轴,使得发动机重起变得更可靠。
    • 9. 发明授权
    • Diesel engine and fuel injection nozzle therefor
    • 柴油发动机和燃油喷嘴
    • US07895986B2
    • 2011-03-01
    • US12190463
    • 2008-08-12
    • Daisuke ShimoMasahiko FujimotoMotoshi KataokaSangkyu KimDaisuke Fukuda
    • Daisuke ShimoMasahiko FujimotoMotoshi KataokaSangkyu KimDaisuke Fukuda
    • F02B23/02
    • F02M61/1806F02M45/086
    • A fuel injection nozzle for a diesel engine. The fuel injection nozzle may include a plurality of injection hole groups, each having two injection holes respectively. A distance between the two injection holes, an angle between longitudinal axes of the two injection holes and an angle between horizontal axes of said two injection holes of each injection hole group are each set such that fuel sprays injected from said two injection holes will form a single fuel spray cloud after the fuel sprays collide with a side wall of a combustion chamber formed in a top surface of a piston of the engine, and such that the distance between collision points of the fuel sprays will be in a predetermined range in which a penetration force of said fuel spray cloud along a longitudinal direction of said combustion chamber received after collision with said wall of said combustion chamber is at or near a predetermined maximum value.
    • 一种用于柴油发动机的燃油喷嘴。 燃料喷射喷嘴可以包括分别具有两个喷射孔的多个喷射孔组。 两个喷射孔之间的距离,两个喷射孔的纵轴之间的角度和每个喷射孔组的所述两个喷射孔的水平轴线之间的角度分别被设定为使得从所述两个喷射孔注入的燃料喷射将形成 燃料喷雾与形成在发动机的活塞的顶面中的燃烧室的侧壁碰撞的单燃料喷雾云,并且燃料喷射的碰撞点之间的距离将处于预定范围内,其中 所述燃料喷雾云沿与所述燃烧室的所述壁碰撞之后接收的所述燃烧室的纵向方向的穿透力处于或接近预定的最大值。