GAS TURBINE ENGINE COMPRESSOR ARRANGEMENT
    61.
    发明申请
    GAS TURBINE ENGINE COMPRESSOR ARRANGEMENT 审中-公开
    燃气涡轮发动机压缩机装置

    公开(公告)号:US20140165534A1

    公开(公告)日:2014-06-19

    申请号:US14179714

    申请日:2014-02-13

    CPC classification number: F02K3/06 F02C3/107 F05D2260/4031

    Abstract: A gas turbine engine has a fan section, including a fan, a gear arrangement configured to drive the fan section, and a compressor section, including both a first compressor and a second compressor. A turbine section is configured to drive the compressor section and the gear arrangement. An overall pressure ratio is provided by the combination of the first compressor and the second compressor, with the overall pressure ratio being greater than or equal to about 35. The fan is configured to deliver a portion of air into the compressor section, and a portion of air into a bypass duct. A bypass ratio, which is defined as a volume of air passing to the bypass duct compared to a volume of air passing into the compressor section, is greater than or equal to about 8.

    Abstract translation: 一种燃气涡轮发动机具有风扇部分,包括风扇,构造成驱动风扇部分的齿轮装置和包括第一压缩机和第二压缩机的压缩机部分。 涡轮部分构造成驱动压缩机部分和齿轮装置。 总压力比由第一压缩机和第二压缩机的组合提供,总压力比大于或等于约35.风扇构造成将一部分空气输送到压缩机部分中,并且一部分 的空气进入旁路管道。 旁路比被定义为与通过压缩机部分的空气体积相比通过旁通管道的空气体积大于或等于约8。

    GAS TURBINE ENGINE COMPRESSOR ARRANGEMENT
    62.
    发明申请
    GAS TURBINE ENGINE COMPRESSOR ARRANGEMENT 审中-公开
    燃气涡轮发动机压缩机装置

    公开(公告)号:US20140157757A1

    公开(公告)日:2014-06-12

    申请号:US14179799

    申请日:2014-02-13

    CPC classification number: F02K3/06 F02C3/107 F05D2260/4031

    Abstract: A gas turbine engine has a fan section, including a fan, a gear arrangement configured to drive the fan section, and a compressor section, including both a first compressor and a second compressor. A turbine section is configured to drive the compressor section and the gear arrangement. The turbine section includes a fan drive turbine configured to drive the fan section, a pressure ratio across the fan drive turbine being greater than or equal to about 5. An overall pressure ratio is provided by the combination of the first compressor and the second compressor.

    Abstract translation: 一种燃气涡轮发动机具有风扇部分,包括风扇,构造成驱动风扇部分的齿轮装置和包括第一压缩机和第二压缩机的压缩机部分。 涡轮部分构造成驱动压缩机部分和齿轮装置。 涡轮部分包括风扇驱动涡轮机,其构造成驱动风扇部分,风扇驱动涡轮机的压力比大于或等于约5.总压力比由第一压缩机和第二压缩机的组合提供。

    GAS TURBINE ENGINE COMPRESSOR ARRANGEMENT
    63.
    发明申请
    GAS TURBINE ENGINE COMPRESSOR ARRANGEMENT 有权
    燃气涡轮发动机压缩机装置

    公开(公告)号:US20130239587A1

    公开(公告)日:2013-09-19

    申请号:US13869057

    申请日:2013-04-24

    CPC classification number: F02K3/025 F02C3/107 F02C7/00 F02K3/06 F05D2260/4031

    Abstract: A gas turbine engine has a fan section, a gear arrangement configured to drive the fan section, a compressor section, including both a low pressure compressor section and a high pressure compressor section. A turbine section is configured to drive the compressor section and the gear arrangement. An overall pressure ratio provided by the combination of a pressure ratio across the low pressure compressor section and a pressure ratio across the high pressure compressor section is greater than about 35. The pressure ratio across a first of the low and high pressure compressor sections is between about 3 and about 8. The pressure ratio across a second of the low and high pressure compressor sections is between about 7 and about 15. The fan is configured to deliver a portion of air into the compressor section, and a portion of air into a bypass duct.

    Abstract translation: 燃气涡轮发动机具有风扇部,构造成驱动风扇部的齿轮装置,包括低压压缩部和高压压缩部两者的压缩部。 涡轮部分构造成驱动压缩机部分和齿轮装置。 通过低压压缩机部分的压力比和高压压缩机部分的压力比的组合提供的总压力比大于约35。第一低压压缩机部分和高压压缩机部分之间的压力比在 约3和约8之间。跨过第二个低压和高压压缩机段的压力比在约7至约15之间。风扇构造成将一部分空气输送到压缩机部分中,并且一部分空气进入 旁路管道。

    Low spool starter system for gas turbine engine

    公开(公告)号:US10352247B2

    公开(公告)日:2019-07-16

    申请号:US14767477

    申请日:2014-02-27

    Abstract: A gas turbine engine comprises a first compressor, a second compressor, a starter generator and a clutch. The starter generator is coupled to the first compressor. The clutch selectively couples the second compressor and the first compressor. The clutch is disposed between a first shaft and a second shaft to engage the first shaft with the second shaft at rest. A flyweight system is engaged with the clutch mechanism to permit freewheeling of the first shaft relative to the second shaft when subject to rotational motion beyond a threshold speed. A method for starting a gas turbine engine comprises engaging a low pressure compressor with a high pressure compressor utilizing a clutch, rotating the low pressure compressor and the high pressure compressor utilizing a starter generator coupled to the low pressure compressor, igniting the gas turbine engine, and disengaging the clutch at an operational speed of the gas turbine engine.

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