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LOW PRESSURE RATIO FAN ENGINE HAVING A DIMENSIONAL RELATIONSHIP BETWEEN INLET AND FAN SIZE
LOW PRESSURE RATIO FAN ENGINE HAVING A DIMENSIONAL RELATIONSHIP BETWEEN INLET AND FAN SIZE
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机译:低压比风扇发动机具有入口和风扇尺寸之间的尺寸关系
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摘要
A gas turbine engine assembly may include, among other things, a fan section including a fan, the fan including a plurality of fan blades, a diameter of the fan having a dimension D, each fan blade having a leading edge, and a forward most portion on the leading edges of the fan blades in a first reference plane, a geared architecture, a turbine section including a high pressure turbine and a low pressure turbine, the low pressure turbine driving the fan through the geared architecture, a nacelle surrounding the fan, the nacelle including an inlet portion forward of the fan, a forward edge on the inlet portion in a second reference plane, and a length of the inlet portion having a dimension L between the first reference plane and the second reference plane. A dimensional relationship of L/D may be between 0.30 and 0.40.
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机译:燃气涡轮发动机组件可以包括包括风扇的风扇部分,该风扇包括多个风扇叶片,具有尺寸D的风扇的直径,每个风扇叶片具有前缘,以及向前的向前 在第一参考平面中的风扇叶片的前缘部分,齿轮架,包括高压涡轮机和低压涡轮机的涡轮段,低压涡轮机通过齿轮架构驱动风扇,围绕风扇的机舱 ,包括风扇的入口部分的机舱,在第二参考平面中的入口部分上的前边缘,以及在第一参考平面和第二参考平面之间的尺寸L的入口部分的长度。 L / D的尺寸关系可以在0.30和0.40之间。
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