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    • 7. 发明申请
    • DIRECTLY ACTUATED GASEOUS FUEL INJECTION VALVE WITH A MOVABLE NOZZLE
    • 具有可移动喷嘴的直接驱动的气体燃料喷射阀
    • WO2004033892A1
    • 2004-04-22
    • PCT/CA2003/001552
    • 2003-10-08
    • WESTPORT RESEARCH INC.HEBBES, MichaelMARK, Randall, T.
    • HEBBES, MichaelMARK, Randall, T.
    • F02M51/06
    • F02M21/0263F02M21/0254F02M51/0603F02M61/04F02M61/08Y02T10/32
    • A directly actuated fuel injection valve is provided for injecting a gaseous fuel into a combustion chamber. The fuel injection valve comprises a valve body (102) with a fuel cavity (106) supplied with fuel from a fuel inlet passage. A nozzle (110) associated with one end of the valve body (104) comprises at least one nozzle orifice (112) through which the gaseous fuel is injectable into the combustion chamber. In relation to the valve body, the nozzle (110) is movable between a closed position, wherein the nozzle (110) is seated against a sealing surface to provide a boundary between the fuel cavity (106) and the one nozzle orifice(s), and an open position, wherein the nozzle is spaced apart from the sealing surface. A spring biases the nozzle (110) in the closed position, and an actuator (130) is operable to move the nozzle to the open position against the bias of the spring (114).
    • 提供一种直接致动的燃料喷射阀,用于将气体燃料喷射到燃烧室中。 燃料喷射阀包括具有从燃料入口通道供应燃料的燃料腔(106)的阀体(102)。 与阀体(104)的一端相关联的喷嘴(110)包括至少一个喷嘴孔口(112),气体燃料可以通过该喷嘴孔口喷射到燃烧室中。 关于阀体,喷嘴(110)可在闭合位置之间移动,其中喷嘴(110)抵靠密封表面安置,以提供燃料腔(106)和一个喷嘴孔之间的边界, 和打开位置,其中喷嘴与密封表面间隔开。 弹簧将喷嘴(110)偏置在关闭位置,并且致动器(130)可操作以克服弹簧(114)的偏压将喷嘴移动到打开位置。