|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||602/04 ; 602/31 ; 602/30 ; 602/71 ; 23/926.519 ; 23/926.517|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 18 인용 특허 : 9|
An apparatus and method for varying the effective cross sectional area of an opening through a nozzle provides a controller 78 that pulses a fluidic cross flow through an injector associated with the nozzle 68 proximate to the opening of the nozzle. The controller 78 directs the injector 76 to provide a pulsed cross flow having a predetermined frequency, amplitude, or wave form. The pulsed cross flow interacts with a primary flow 14 through the nozzle 68 to partially block the nozzle's opening 72, thereby effectively decreasing the cross sectional area o...
[ What is claimed is:] [47.] A method for controlling a primary flow through a small area expansion ratio nozzle by varying an effective throat of the nozzle, comprising the steps of:directing a primary flow through the nozzle wherein the primary flow has a subsonic region prior to the effective throat; anddirecting a pulsed cross flow opposed to the primary flow of the nozzle to vary an effective size, location, and orientation of the effective throat, wherein said pulsed cross flow is injected to oppose the primary flow from at least one primary inject...