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    • 10. 发明授权
    • Delayed exhaust engine cycle
    • 延时排气发动机循环
    • US08191516B2
    • 2012-06-05
    • US12400312
    • 2009-03-09
    • Joseph J. MoonRoberto L RastelliWilliam C. Albertson
    • Joseph J. MoonRoberto L RastelliWilliam C. Albertson
    • F02B75/02
    • F02D13/0265F01P2060/08F02D13/0249F02D41/0255F02D41/068F02D2041/001Y02T10/18Y02T10/26
    • A method of operating an engine in a delayed exhaust engine cycle may include opening an intake valve of the engine during a first stroke to form an intake stroke. The method may further include closing the intake valve and determining an engine operating temperature. The engine operating temperature may be compared to a predetermined temperature limit. A first fuel mass may be provided to the combustion chamber between an end portion of a second stroke and a beginning portion of a third stroke. The third stroke may form a first power stroke and the intake valve and an exhaust valve in communication with the combustion chamber may be closed during the second and third strokes. The exhaust valve may be maintained in a closed position during a fourth stroke when the engine operating temperature is less than the predetermined temperature limit.
    • 在延迟排气发动机循环中操作发动机的方法可以包括在第一冲程期间打开发动机的进气门以形成进气冲程。 该方法还可以包括关闭进气门并确定发动机工作温度。 可以将发动机工作温度与预定的温度限制进行比较。 第一燃料块可以在第二冲程的端部和第三冲程的开始部分之间设置到燃烧室。 第三冲程可以形成第一动力冲程,并且进气门和与燃烧室连通的排气阀可在第二和第三冲程期间关闭。 当发动机工作温度小于预定温度极限时,排气阀可在第四冲程期间保持在关闭位置。