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특허 상세정보

Geared architecture for high speed and small volume fan drive turbine

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01D-025/00    F02C-007/36    F04D-025/04    F04D-029/32    F01D-005/06    F01D-009/04    F01D-015/12    F02K-003/06   
출원번호 US-0484441 (2017-04-11)
등록번호 US-9752511 (2017-09-05)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Carlson, Gaskey & Olds, PC
인용정보 피인용 횟수 : 1  인용 특허 : 132
초록

A gas turbine engine includes a gear system that provides a speed reduction between a fan drive turbine and a fan rotor. Aspects of the gear system are provided with some flexibility. The fan drive turbine has a first exit area and rotates at a first speed. A second turbine section has a second exit area and rotates at a second speed, which is faster than said first speed. A performance quantity can be defined for both turbine sections as the products of the respective areas and respective speeds squared. A performance quantity ratio of the performance q...

대표
청구항

1. A gas turbine engine comprising: a fan shaft driving a fan having fan blades;a frame which supports said fan shaft, said frame having a frame lateral stiffness and a frame transverse stiffness;an epicyclic gear system having a gear reduction ratio of greater than 2.3;a flexible support which supports said epicyclic gear system and has a flexible support lateral stiffness and a flexible support transverse stiffness, and at least one of said flexible support lateral stiffness and said flexible support transverse stiffness is less than 11% of a respectiv...

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