公开(公告)号：US10132323B2

公开(公告)日：2018-11-20

申请号：US14870300

申请日：2015-09-30

Applicant: General Electric Company

Inventor： Swati Saxena ,  Andrew Breeze-Stringfellow ,  Rajkeshar Vijayraj Singh ,  Tsuguji Nakano

IPC: F04D27/02 ,  F02C3/04

Abstract: A compressor is provided including a casing, a hub, a flowpath, a plurality of blades defining a plurality of axially extending compressor stages and an endwall treatment formed in the casing on at least two downstream most stages of the plurality of compressor stages. The remaining stages of the plurality of compressor stages located upstream of the at least two downstream most stage are devoid of any endwall treatment. Each of the endwall treatments faces a tip of each blade in the at least two downstream most stages. The tip of each blade and the endwall treatment are configured to move relative to each other. The endwall treatment formed in the casing on at least two downstream most stages of the plurality of compressor stages is configured to extend a stall margin to delay stall due to ice ingestion. A method and engine application are disclosed.

公开(公告)号：US20170089217A1

公开(公告)日：2017-03-30

申请号：US14870300

申请日：2015-09-30

Applicant: General Electric Company

Inventor： Swati Saxena ,  Andrew Breeze-Stringfellow ,  Rajkeshar Vijayraj Singh ,  Tsuguji Nakano

IPC: F01D25/02 ,  F02C3/04

CPC classification number: F04D27/02 ,  F01D25/02 ,  F02C3/04 ,  F04D29/526 ,  F04D29/681 ,  F05D2220/32 ,  F05D2220/3219 ,  F05D2250/294

Abstract: A compressor is provided including a casing, a hub, a flowpath, a plurality of blades defining a plurality of axially extending compressor stages and an endwall treatment formed in the casing on at least two downstream most stages of the plurality of compressor stages. The remaining stages of the plurality of compressor stages located upstream of the at least two downstream most stage are devoid of any endwall treatment. Each of the endwall treatments faces a tip of each blade in the at least two downstream most stages. The tip of each blade and the endwall treatment are configured to move relative to each other. The endwall treatment formed in the casing on at least two downstream most stages of the plurality of compressor stages is configured to extend a stall margin to delay stall due to ice ingestion. A method and engine application are disclosed.