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    • 10. 发明授权
    • Dual-spring compensator assembly for a fuel injector and method
    • 用于燃油喷射器的双弹簧补偿器组件和方法
    • US06676035B2
    • 2004-01-13
    • US09973939
    • 2001-10-11
    • Jack LorraineAndreas KappelEnrico UlivieriBernhard GottliebBernhard Fischer
    • Jack LorraineAndreas KappelEnrico UlivieriBernhard GottliebBernhard Fischer
    • B05G304
    • F02M51/0603F02M61/08F02M61/167
    • A fuel injector comprises a body having a longitudinal axis, an length-changing actuator that has first and second ends, a closure member coupled to the first end of the length-changing actuator, and a compensator assembly coupled the second end of the actuator. The length-changing actuator includes first and second ends. The closure member is movable between a first configuration permitting fuel injection and a second configuration preventing fuel injection. And the compensator assembly axially positions the actuator with respect to the body in response to temperature variation. The compensator assembly utilizes a configuration of at least one spring disposed between two pistons so as to reduce the use of elastomer seals to thereby reduce a slip stick effect. Also, a method of compensating for thermal expansion or contraction of the fuel injector comprises providing fuel from a fuel supply to the fuel injector; and adjusting the actuator with respect to the body in response to temperature and other dimensional variations.
    • 燃料喷射器包括具有纵向轴线的本体,具有第一和第二端的长度改变的致动器,联接到长度改变致动器的第一端的闭合构件和联接在致动器的第二端的补偿器组件。 长度改变致动器包括第一和第二端。 封闭构件可以在允许燃料喷射的第一配置和防止燃料喷射的第二配置之间移动。 并且补偿器组件响应于温度变化将致动器相对于主体轴向定位。 补偿器组件利用设置在两个活塞之间的至少一个弹簧的构造,以便减少弹性体密封的使用,从而减少滑动棒效应。 此外,补偿燃料喷射器的热膨胀或收缩的方法包括从燃料供给燃料喷射器提供燃料; 以及响应于温度和其他尺寸变化而相对于身体调节致动器。