GAS TURBINE ENGINE AIRFOIL
    21.
    发明申请
    GAS TURBINE ENGINE AIRFOIL 审中-公开
    气体涡轮发动机气翼

    公开(公告)号:US20160238023A1

    公开(公告)日:2016-08-18

    申请号:US15063594

    申请日:2016-03-08

    Abstract: An airfoil for a turbine engine includes pressure and suction sides that extend in a radial direction from a 0% span position at an inner flow path location to a 100% span position at an airfoil tip. The airfoil has a relationship between a total chord length and a span position and corresponds to a curve that has an increasing total chord length from the 0% span position to a first peak. The first peak occurs in the range of 45-65% span position, and the curve either remains constant or has a decreasing total chord length from the first peak toward the 100% span position. The total chord length is at the 0% span position in the range of 8.2-10.5 inches (20.8-26.7 cm). The curve is at least a third order polynomial and has an initial positive slope.

    Abstract translation: 用于涡轮发动机的翼型包括压力和吸力侧,其在径向方向上从内部流动路径位置处的0%跨度位置延伸到翼型端部处的100%跨度位置。 翼型具有总弦长和跨度位置之间的关系,并且对应于从0%跨度位置到第一峰具有增加的总弦长的曲线。 第一个峰出现在45-65%跨度位置的范围内,曲线或者保持恒定,或者从第一个峰到100%的跨度位置具有减小的总弦长。 总和弦长度在8.2-10.5英寸(20.8-26.7厘米)范围内的0%跨度位置。 该曲线是至少三阶多项式并具有初始正斜率。

    Gas turbine engine airfoil
    22.
    发明授权
    Gas turbine engine airfoil 有权
    燃气涡轮发动机翼型

    公开(公告)号:US09399917B2

    公开(公告)日:2016-07-26

    申请号:US14876995

    申请日:2015-10-07

    Abstract: An airfoil for a turbine engine includes an airfoil that has pressure and suction sides that extend in a radial direction from a 0% span position at an inner flow path location to a 100% span position at an airfoil tip. The airfoil has a relationship between a leading edge dihedral and a span position. The leading edge dihedral is negative from the 0% span position to the 100% span position. A positive dihedral corresponds to suction side-leaning, and a negative dihedral corresponds to pressure side-leaning. The airfoil is a fan blade for a gas turbine engine. The airfoil has a relationship between a trailing edge dihedral and a span position. The trailing edge dihedral is positive from the 0% span position to the 100% span position. A positive dihedral corresponds to suction side-leaning and a negative dihedral corresponds to pressure side-leaning.

    Abstract translation: 用于涡轮发动机的翼型件包括具有压力和吸力侧的翼型件,所述翼型件在径向方向上从内部流动路径位置处的0%跨度位置延伸到翼型顶端处的100%跨度位置。 翼型件具有前缘二面体和跨度位置之间的关系。 前缘二面体从0%跨度位置到100%跨度位置为负。 正二面对应于吸力侧倾,负二面对应于压力侧倾。 翼型件是用于燃气轮机的风扇叶片。 翼型件具有后缘二面体和跨度位置之间的关系。 后缘二面体从0%跨度位置到100%跨度位置为正。 正二面对应于吸力侧倾,负二面对应于压力侧倾。

    Efficient, low pressure ratio propulsor for gas turbine engines

    公开(公告)号:US10288009B2

    公开(公告)日:2019-05-14

    申请号:US15252689

    申请日:2016-08-31

    Abstract: A gas turbine engine includes a bypass flow passage that has an inlet and defines a bypass ratio in a range of approximately 8.5 to 13.5. A fan is arranged at the inlet. A first turbine is coupled with a first shaft such that rotation of the first turbine will drive the fan. A first compressor is coupled with the first shaft and includes three stages, and a second turbine is coupled with a second shaft and includes two stages. The fan includes a row of 16 (N) fan blades that has a solidity value (R) that is from 1.0 to 1.2 and a ratio of N/R that is from 13.3 to 16.0.

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