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    • 8. 发明公开
    • GEARED TURBOFAN WITH LOW SPOOL POWER EXTRACTION
    • 带小功率抽取的齿轮式涡轮风扇
    • EP3282093A1
    • 2018-02-14
    • EP17185169.4
    • 2017-08-07
    • United Technologies Corporation
    • SHERIDAN, William G.SUCIU, Gabriel L.McCUNE, Michael E.
    • F01D15/10F02C7/32
    • F02C7/32F02C3/107F02C7/275F02K3/06F02N11/00F05D2220/327F05D2220/76F05D2260/532F05D2260/85F05D2260/98
    • A geared turbofan engine (20) includes a first spool (32) including a first compressor (52) and a first turbine (54). The first compressor (52) is immediately before a combustor (56) and the first turbine (54) is immediately after the combustor (56). A second spool (30) includes at least a second turbine (46) disposed axially aft of the first turbine (54). A first tower shaft (64) is engaged to drive the high speed spool (32). A second tower shaft (66) engaged to be driven by the second spool (30). A starter (76) is engaged to drive the first tower shaft (64). An accessory gear box (62) is driven by the second tower shaft (66). A first clutch (72) is disposed between the first tower shaft (64) and the starter (76). The first clutch (72) is configured to enable the starter (76) to drive the high speed spool (32). A second clutch (74) is disposed between the second tower shaft (66) and the accessory gear box (62), the second clutch (74) configured to enable the second spool (30) to drive the accessory gear box (62). A gas turbine engine (20) and a method of operating a gas turbine engine (20) are also disclosed.
    • 齿轮传动涡扇发动机(20)包括具有第一压缩机(52)和第一涡轮机(54)的第一阀芯(32)。 第一压缩机(52)紧接在燃烧器(56)之前并且第一涡轮机(54)紧接在燃烧器(56)之后。 第二阀芯(30)至少包括设置在第一涡轮机(54)的轴向后方的第二涡轮机(46)。 第一塔轴(64)接合以驱动高速卷轴(32)。 第二塔轴(66)接合以由第二卷轴(30)驱动。 启动器(76)接合以驱动第一塔轴(64)。 辅助齿轮箱(62)由第二塔轴(66)驱动。 第一离合器(72)设置在第一塔轴(64)和起动机(76)之间。 第一离合器(72)构造成使启动器(76)能够驱动高速卷轴(32)。 第二离合器74设置在第二塔轴66与辅助齿轮箱62之间,第二离合器74构造成使第二滑阀30能够驱动辅助齿轮箱62。 还公开了一种燃气涡轮发动机(20)和一种操作燃气涡轮发动机(20)的方法。