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    • 68. 发明申请
    • FUEL INJECTION VALVE
    • 燃油喷射阀
    • US20140191065A1
    • 2014-07-10
    • US14240208
    • 2011-08-22
    • Hisao Suzuki
    • Hisao Suzuki
    • F02M63/00
    • F02M63/0033F02M61/1813F02M61/1833F02M61/1853
    • A fuel injection valve that can favorably reduce the film thickness of fuel ejected from an outlet of an injection hole without relying on increase of the fuel pressure, whereby atomization of fuel spray can be favorably promoted, is provided.A fuel passage (16) through which the fuel flows is formed in the interior of the fuel injection valve (10). An injection-hole plate (18) as a member that separates an injection space (20) into which the fuel is injected, from the fuel passage (16), is provided in which a plurality of injection holes (22) for ejecting the fuel from the fuel passage (16) toward the injection space (20) are formed. The injection-hole plate (18), as viewed from the outlet side of the injection hole (22), is formed with an injection-hole outlet-side groove (24) connected to the injection hole (22) in a region (inner wall surface 22b) opposed to a main flow direction of the fuel directed toward the injection hole (22) along an inner wall surface (18a) of the injection-hole plate (18). The injection-hole outlet-side groove (24) is formed so as to extend in a direction away from the injection hole (22).
    • 一种燃料喷射阀,其可以有利地降低从喷射孔的出口喷射的燃料的膜厚度,而不依赖于燃料压力的增加,从而可以有利地促进燃料喷雾的雾化。 燃料流动的燃料通道(16)形成在燃料喷射阀(10)的内部。 作为将燃料喷射到其中的喷射空间(20)从燃料通路(16)分离的部件的喷射孔板(18)设置有多个用于喷射燃料的喷射孔(22) 从燃料通路(16)向喷射空间(20)形成。 从注射孔(22)的出口侧观察,喷射孔板(18)形成有喷射孔出口侧槽(24),该喷射孔出口侧槽(24)在区域(内部 壁面22b),其与沿着喷射孔板(18)的内壁面(18a)朝向喷射孔(22)的燃料的主流动方向相对。 注入孔出口侧槽(24)形成为在远离喷射孔(22)的方向上延伸。