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    • 1. 发明授权
    • Fuel injection nozzle
    • 燃油喷嘴
    • US08231069B2
    • 2012-07-31
    • US12227437
    • 2007-05-18
    • Eriko MatsumuraTomojiro SugimotoMotonari Yarino
    • Eriko MatsumuraTomojiro SugimotoMotonari Yarino
    • F02M61/00
    • F02M61/1853
    • In a fuel injection nozzle for an internal combustion engine, a first cavity is disposed downstream of a valve seat in a direction in which fuel flows. A second cavity is disposed downstream of the first cavity in the direction in which the fuel flows. A fuel passage connects the first cavity to the second cavity. Fuel injection holes (24) lead to the second cavity. With this configuration, when the fuel flows through the first fuel passage, cavitation is induced. Cavitation bubbles flow into the second cavity along with the fuel. When the fuel is retained in the second cavity, the cavitation bubbles are uniformly mixed into the fuel. The fuel, which has been sufficiently mixed with the cavitation bubbles, is injected from the fuel injection holes.
    • 在用于内燃机的燃料喷射喷嘴中,第一空腔设置在燃料流动方向上的阀座的下游。 第二空腔设置在燃料流动方向上的第一空腔下游。 燃料通道将第一腔连接到第二腔。 燃料喷射孔(24)通向第二腔。 利用这种构造,当燃料流过第一燃料通道时,引起空化。 气泡与燃料一起流入第二腔。 当燃料保持在第二空腔中时,空化气泡被均匀地混合到燃料中。 已经与空化气泡充分混合的燃料从燃料喷射孔注入。
    • 2. 发明申请
    • FUEL INJECTOR
    • 喷油器
    • US20100116912A1
    • 2010-05-13
    • US12445324
    • 2007-10-30
    • Motonari YarinoTomojiro SugimotoShouji MiyazakiTakehiro NitohAtsushi ShirasawaKazuaki SatohEriko Matsumura
    • Motonari YarinoTomojiro SugimotoShouji MiyazakiTakehiro NitohAtsushi ShirasawaKazuaki SatohEriko Matsumura
    • B05B1/30
    • F02M61/1806F02M2200/02F02M2200/06F02M2200/9038
    • A fuel injector inhibiting adhesion of deposits and simultaneously improving durability by a simple configuration is provided.A fuel injector having a valve body provided with a main space receiving fuel and an injection hole and a needle movably supported at the valve body and having a seal part at its front end, in which needle the movement causes the seal part to separate from or contact an inner surface of the valve body and thereby open or close a fuel passage communicating the main space and the injection hole of the valve body, the fuel injector characterized in that the injection hole of the valve body is covered by an injection hole coating comprised of a material with a lower adsorption and reactivity with oxygen compared with the material of the valve body itself, and the seal part of the needle is covered by a seal part coating comprised of a material higher in liquid-repellency compared with the material of the needle itself and not forming a metal surface. Preferably, the material of the injection hole coating is gold and the material of the seal part coating is a silica-based coating material.
    • 提供了抑制沉积物附着并同时通过简单构造提高耐久性的燃料喷射器。 一种燃料喷射器,其具有设置有主空间接收燃料和喷射孔的阀体和可移动地支撑在阀体处并且在其前端处具有密封部分的针,其中该运动使得密封部分与或 接触阀体的内表面,从而打开或关闭连通阀体的主空间和喷射孔的燃料通道,该燃料喷射器的特征在于,阀体的喷射孔被包括一个喷射孔涂层 与阀体本身的材料相比具有较低的吸附和反应性的材料,并且针的密封部分被密封部分涂层覆盖,所述密封部分涂层包括与拒水性较高的材料相比, 针本身并不形成金属表面。 优选地,注射孔涂层的材料是金,并且密封部分涂层的材料是二氧化硅基涂层材料。
    • 3. 发明申请
    • Fuel Injection Nozzle
    • 喷油嘴
    • US20090230219A1
    • 2009-09-17
    • US12227437
    • 2007-05-18
    • Eriko MatsumuraTomojiro SugimotoMotonari Yarino
    • Eriko MatsumuraTomojiro SugimotoMotonari Yarino
    • F02M61/00B05B1/14
    • F02M61/1853
    • In a fuel injection nozzle for an internal combustion engine, a first cavity is disposed downstream of a valve seat in a direction in which fuel flows. A second cavity is disposed downstream of the first cavity in the direction in which the fuel flows. A fuel passage connects the first cavity to the second cavity. Fuel injection holes (24) lead to the second cavity. With this configuration, when the fuel flows through the first fuel passage, cavitation is induced. Cavitation bubbles flow into the second cavity along with the fuel. When the fuel is retained in the second cavity, the cavitation bubbles are uniformly mixed into the fuel. The fuel, which has been sufficiently mixed with the cavitation bubbles, is injected from the fuel injection holes.
    • 在用于内燃机的燃料喷射喷嘴中,第一空腔设置在燃料流动方向上的阀座的下游。 第二空腔设置在燃料流动方向上的第一空腔下游。 燃料通道将第一腔连接到第二腔。 燃料喷射孔(24)通向第二腔。 利用这种构造,当燃料流过第一燃料通道时,引起空化。 气泡与燃料一起流入第二腔。 当燃料保持在第二空腔中时,空化气泡被均匀地混合到燃料中。 已经与空化气泡充分混合的燃料从燃料喷射孔注入。
    • 9. 发明申请
    • FUEL INJECTION APPARATUS FOR INTERNAL COMBUSTION ENGINE
    • 燃油喷射装置内燃机
    • US20140069393A1
    • 2014-03-13
    • US14115531
    • 2012-05-10
    • Motonari Yarino
    • Motonari Yarino
    • F02D41/32
    • F02D41/32F02B23/104F02B2023/103F02M61/1813F02M61/182F02M61/1826Y02T10/125
    • In a fuel injection apparatus for an internal combustion engine, capable of changing a pressure of fuel that is supplied to a fuel injection valve (21A), the fuel injection valve (21A) has an upper nozzle hole group (25U) including a plurality of nozzle holes (25u) and located on an upper side in a direction of a central axis of a cylinder, and a lower nozzle hole group (25D) including a plurality of nozzle holes (25d) and located on a lower side in the direction of the central axis, and is configured such that a fuel density downstream of the lower nozzle hole group (25D) in an injection direction is higher than that downstream of the upper nozzle hole group (25U) in an injection direction. The fuel injection valve (21A) is configured such that a flow rate of fuel injected from the lower nozzle hole group (25D) is higher than that of fuel injected from the upper nozzle hole group (25U).
    • 在能够改变向燃料喷射阀(21A)供给的燃料的压力的内燃机的燃料喷射装置中,燃料喷射阀(21A)具有上喷嘴孔组(25U),其包括多个 喷嘴孔(25u)和位于气缸中心轴方向上侧的喷嘴孔(25u),以及下喷嘴孔组(25D),其包括多个喷嘴孔(25d),位于下方的 中心轴线,并且被配置为使得在喷射方向上的下喷嘴孔组(25D)下游的燃料密度高于喷嘴方向上的上喷嘴孔组(25U)的下游的燃料密度。 燃料喷射阀(21A)被构造成使得从下喷嘴孔组(25D)喷射的燃料的流量高于从上喷嘴孔组(25U)喷射的燃料的流量。