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    • 6. 发明授权
    • Gas turbine engine compressor arrangement
    • 燃气涡轮发动机压缩机布置
    • US08337148B2
    • 2012-12-25
    • US13483426
    • 2012-05-30
    • Joseph B. StaubachBrian D. MerryGabriel L. SuciuChristopher M. Dye
    • Joseph B. StaubachBrian D. MerryGabriel L. SuciuChristopher M. Dye
    • F01D25/28
    • F02C3/107F02K3/06
    • A gas turbine engine includes a low pressure compressor section and a high pressure compressor section. A low pressure turbine drives the low pressure compressor section. A gear arrangement is driven by the low pressure turbine to in turn drive a fan section. A pressure ratio across the low pressure compressor section is between about 4-8, and a pressure ratio across the high pressure compressor section is between about 8-15. In a separate feature, a compressor case includes a front compressor case portion and a rear compressor case portion, with the rear compressor case portion being axially further from an inlet case than the front compressor case portion. A support member extends between the fan section and the front compressor case portion.
    • 燃气涡轮发动机包括低压压缩机部分和高压压缩机部分。 低压涡轮机驱动低压压缩机部分。 齿轮装置由低压涡轮机驱动,从而驱动风扇部分。 低压压缩机部分的压力比在大约4-8之间,并且高压压缩机部分的压力比在大约8-15之间。 在单独的特征中,压缩机壳体包括前压缩机壳体部分和后压缩机壳体部分,后压缩机壳体部分比从前压缩机壳体部分的入口壳体更远离轴向。 支撑构件在风扇部分和前压缩机壳体部分之间延伸。