公开(公告)号：US08850793B2

公开(公告)日：2014-10-07

申请号：US14102764

申请日：2013-12-11

Applicant: United Technologies Corporation

Inventor： Paul R. Adams ,  Shankar S. Magge ,  Joseph B. Staubach ,  Wesley K. Lord ,  Frederick M. Schwarz

IPC: F02K3/02 ,  F02C7/36 ,  F02K7/06

CPC classification number: F02C9/18 ,  F01D1/02 ,  F01D5/02 ,  F01D9/041 ,  F01D25/24 ,  F02C3/04 ,  F02C3/107 ,  F02C3/113 ,  F02C7/20 ,  F02C7/36 ,  F02K3/025 ,  F02K3/06 ,  F02K3/075 ,  F02K7/06 ,  F05D2220/32 ,  F05D2260/40311 ,  F05D2260/606 ,  Y02T50/671

Abstract: A turbofan engine is disclosed and includes a fan and a compressor in communication with the fan section, a combustor, a turbine and a speed reduction mechanism coupled to the fan and rotatable by the turbine. The turbine includes a first turbine section that includes three or more stages and a second turbine section that includes at least two stages. A ratio of airfoils in the first turbine section to a bypass area is less than about 170.

Abstract translation: 涡轮风扇发动机被公开并且包括与风扇部分连通的风扇和压缩机，燃烧器，涡轮机和联接到风扇并由涡轮机旋转的减速机构。 涡轮机包括包括三级或更多级的第一涡轮机部分和包括至少两级的第二涡轮部分。 第一涡轮部分中的翼型件与旁路区域的比例小于约170。