公开(公告)号：US20140157753A1

公开(公告)日：2014-06-12

申请号：US14179864

申请日：2014-02-13

Applicant: United Technologies Corporation

Inventor： Karl L. Hasel ,  Joseph B. Staubach ,  Brian D. Merry ,  Gabriel L. Suciu ,  Christopher M. Dye

IPC: F02K3/06

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

Abstract: A method of designing a gas turbine engine includes providing a fan section including a fan; driving the fan section via a gear arrangement; providing a compressor section, including both a first compressor and a second compressor; and driving the compressor section and the gear arrangement via a turbine section. An overall pressure ratio, being provided by the combination of a pressure ratio across the first compressor and a pressure ratio across the second compressor, is greater than or equal to about 35. The pressure ratio across the first compressor is greater than or equal to about 7.

Abstract translation: 一种设计燃气涡轮发动机的方法包括：提供包括风扇的风扇部分; 通过齿轮装置驱动风扇部分; 提供包括第一压缩机和第二压缩机的压缩机部分; 并且经由涡轮机部分驱动压缩机部分和齿轮装置。 通过跨第一压缩机的压力比和跨第二压缩机的压力比的组合提供的总压力比大于或等于约35.跨第一压缩机的压力比大于或等于约 7。

公开(公告)号：US08678743B1

公开(公告)日：2014-03-25

申请号：US13758086

申请日：2013-02-04

Applicant: United Technologies Corporation

Inventor： William G. Sheridan ,  Karl L. Hasel

IPC: F01D1/24

CPC classification number: F02C7/36 ,  F05D2230/60 ,  F05D2260/40311 ,  F05D2260/941

Abstract: A gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a fan section including a fan rotatable about an axis and a speed reduction device in communication with the fan. The speed reduction device includes a planetary fan drive gear system with a planet gear ratio of at least 2.5. A fan blade tip speed of the fan is less than 1400 fps.

Abstract translation: 根据本公开的示例性方面的燃气涡轮发动机包括除了别的以外的风扇部分，其包括可围绕轴线旋转的风扇和与风扇连通的减速装置。 减速装置包括具有至少2.5的行星齿轮比的行星风扇驱动齿轮系统。 风扇的风扇叶片尖端速度小于1400 fps。