|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||415/01 ; 415/017 ; 415/027 ; 60/039.29|
|§371/§102 date||19951102 (19951102)|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 143 인용 특허 : 2|
A technique for controlling compressor stall and surge is disclosed. In a gas turbine engine, static pressure asymmetry is sensed at a plurality of locations along the circumference of the compressor inlet. Time rate of change of the mass flow in the compressor is also estimated using pressure measurements in the compressor. A signal processor uses these signals to modulate a compressor bleed valve responsive to the level of flow property asymmetry, the time rate of change of the annulus average flow to enhance operability of the compressor.
[ We claim:] [1.] A controller for a compressor, characterized by:first means for sensing fluid flow properties in a fluid flow path around a compressor flow axis to produce first signals that manifest circumferential asymmetry of said fluid flow;second means for providing a second signal that manifests the time rate of change of the mass flow of said fluid in the flow path;signal processing means comprising means for a providing a first processor signal from said first signals with a value that manifests the magnitude of said circumferential asymmetry; ...