|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||60/3902 ; 60/726 ; 415/119 ; 415/163|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 8 인용 특허 : 0|
A method and apparatus for eliminating vortex whistle noise in a radial-to-axial compressor intake uses a plurality of vortex-disturbing tabs mounted to the trailing edges of inlet guide vanes and extending into the flow path between adjacent vanes. The tabs are mounted to the guide vane so that the tab is always perpendicular to the guide vane, regardless of the vanes angular position.
A variable flow rate intake apparatus adapted for connection to a gas-utilizing device having an annular inlet opening, said intake apparatus having an axis and comprising: (a) a first and second mutually spaced, concentric walls circumscribing said axis and defining therebetween a gas flow passage having a generally axially facing annular outlet and a generally radially outwardly facing inlet encircling said axis; (b) a circumferentially spaced plurality of adjustable inlet guide vanes extending between and carried by said walls around said flow passage...