|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||244/13 ; 244/902 ; 244/903|
|발명자 / 주소|
|인용정보||피인용 횟수 : 23 인용 특허 : 36|
A para-plane (parachute or parafoil airplane), ultralight, or the like is provided with a ducted propeller or fan to increase efficiency of the powerplant, thus reducing the size of the powerplant required. In addition, the duct may reduce propeller and/or engine noise and enhance safety for pilot, passengers and bystanders. Axial vanes may be provided upstream or downstream of the propeller within the duct to counteract the torque effect of the propeller. In another embodiment, a novel inflatable parafoil may be provided to reduce the effort required to...
The inflatable parafoil wing comprising: a flexible parafoil canopy having a substantially airfoil shape when inflated with a gas; at least one gas valve for substantially sealing said flexible parafoil canopy so as to substantially maintain pressure within said flexible parafoil canopy; a plurality of control and support lines, coupled to said flexible canopy for supporting a load; a feed tube, coupled to said flexible parafoil canopy for supplying a pressurizing gas; and an internal combustion engine, coupled to the load, said internal combustion engin...