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发明授权
US09080512B2 Counter-rotating low pressure turbine with gear system mounted to mid turbine frame 有权
带有齿轮系的反转式低压涡轮机安装在中间涡轮机架上

Counter-rotating low pressure turbine with gear system mounted to mid turbine frame
摘要：
A gas turbine engine includes a shaft defining an axis of rotation. An outer turbine rotor directly drives the shaft and includes an outer set of blades. An inner turbine rotor has an inner set of blades interspersed with the outer set of blades. The inner turbine rotor is configured to rotate in an opposite direction about the axis of rotation from the outer turbine rotor. A gear system couples the inner turbine rotor to the shaft and is configured to rotate the inner set of blades at a faster speed than the outer set of blades. The gear system is mounted to a mid-turbine frame.
摘要（中）：

燃气涡轮发动机包括限定旋转轴线的轴。 外涡轮转子直接驱动轴并且包括外部一组叶片。 内部涡轮转子具有与外部组叶片交替散布的内部一组叶片。 内涡轮转子被构造成围绕与外涡轮转子的旋转轴线相反的方向旋转。 齿轮系将内涡轮转子与轴连接，并且构造成以比外套叶片更快的速度旋转内组叶片。 齿轮系统安装到中涡轮机架。

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