1results about How to "Large axial thrust" patented technology

This invention provides an asymmetrical tilting duct, belonging to the field of aircraft technology, including a duct shell. The duct shell is a non-closed arc structure along the circumferential direction, and the duct shell has a non-closed opening section on its circumference. The cross-section of the opening section is an airfoil with inverted upper and lower arcs. By designing the duct shell as a non-closed arc structure and setting a non-closed opening section with an inverted airfoil cross-section on its circumference, this invention breaks the symmetrical distribution of circumferential air pressure in the duct, forming a circumferential pressure difference that cannot be completely offset. This allows the duct to generate additional radial lift along the vertical direction of the fuselage while providing axial thrust, effectively offsetting part of the wing load and improving the aircraft's payload ratio.