|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||244/53B ; 60/226A ; 60/228 ; 244/110B|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 4 인용 특허 : 3|
Ducted fan propulsion unit for aircraft has a main duct 3 containing a reversible pitch fan 1 rearward of which is provided a flow splitter 13 dividing the main duct into radially outer and inner branch ducts 3A, 3B. A radial passage 15 in the splitter connects the branch ducts and divides the splitter into front and rear parts 13A, 13B. The part of the inner branch duct forward of the radial passage contains an array of stator vanes 12B and has outer and inner wall surfaces 3B1,3B2 both of progressively reducing diameter to urge the flow through that br...
A ducted fan propulsion unit for aircraft comprising an annular main duct, a fan contained within the main duct and having blades the pitch of which is reversible, a first opening defined in the duct forward of the fan, an annular flow splitter situated rearward of the fan and dividing the main duct into radially outer and inner branch ducts, a passage extending radially through the splitter to connect the branch ducts, outer stator vanes provided in the outer branch duct forward of said passage, inner stator vanes provided in the inner branch duct forwa...