-
公开(公告)号：US20240336351A1
公开(公告)日：2024-10-10
申请号：US18393888
申请日：2023-12-22
发明人： Norman WOOD
CPC分类号： B64C23/072 , B64C3/14 , B64C2003/146
摘要： A wing tip device for a fixed wing aircraft is disclosed having an alular-like projection, a first leading edge region having a first sweep angle, a second leading edge region outboard of the first leading edge region in a spanwise direction and having a second sweep angle greater than the first sweep angle, a third leading edge region outboard of the second leading edge region in the spanwise direction and adjacent a tip end of the wing tip device and having a third sweep angle greater than the first sweep angle. The second leading edge region is adapted to generate a first vortex, and the third leading edge region is adapted to generate a second vortex which builds towards the tip end of the wing tip device.
-
公开(公告)号：US12065243B2
公开(公告)日：2024-08-20
申请号：US18111006
申请日：2023-02-17
申请人： BOMBARDIER INC.
CPC分类号： B64C39/10 , B64C1/0009 , B64C3/14 , B64C2039/105 , Y02T50/10
摘要： A blended wing body aircraft having an interior cabin with a usable volume of at most 4500 ft3 and a cabin aspect ratio of at most 4, wherein a combination of the wings and center body has a wetted aspect ratio of at least 1.7 and at most 2.8. Also, a blended wing body aircraft having an interior cabin with a usable volume of at least 1500 ft3 and at most 4500 ft3 and a cabin aspect ratio of at least 2 and at most 4, wherein a combination of the wings and center body has a wetted aspect ratio of at least 1.9 and at most 2.7. Also, a blended wing body aircraft wherein at least each profile section having normalized half-span values from 0 to 0.3 has a leading edge having a normalized height having a nominal value within the range set forth in Table 4.
-
公开(公告)号：US20240228073A9
公开(公告)日：2024-07-11
申请号：US18489411
申请日：2023-10-18
发明人： Mihai Ioan ZECHERU
摘要： An airfoil profile for an aircraft, such as an unmanned aerial system. The airfoil profile includes a leading edge portion and a trailing edge portion that are spaced apart along a chordwise direction, an airfoil centroid; and an upper airfoil surface and a lower airfoil surface. The airfoil surfaces are shaped such that the pressure center of the lifting force is arranged at the same chord location as the airfoil centroid or closer to the trailing edge portion along the chordwise direction than the airfoil centroid. With this, a pitch-down momentum is generated that urges the leading edge portion towards a lower angle of attack.
-
公开(公告)号：US20240166330A1
公开(公告)日：2024-05-23
申请号：US18098515
申请日：2023-01-18
发明人： John F. GUNDLACH
摘要： An airfoil structure for an aircraft includes at least two components mated together adjacently along a chordwise direction. The at least two components extend in the chordwise direction from a front surface to a back surface, the front surface defines a contour of a leading edge of the airfoil structure, and the back surface defines contour of a trailing edge of the airfoil structure. Each of the at least two components includes receiving apertures defined therein at one or more spanwise locations along a spanwise direction, and the receiving apertures at each of the one or more spanwise locations are aligned with each other in the chordwise direction. The airfoil structure also includes a plurality of chordwise reinforcement elements extending through the aligned receiving apertures between the front surface and the back surface.
-
公开(公告)号：US20240132236A1
公开(公告)日：2024-04-25
申请号：US18489411
申请日：2023-10-17
发明人： Mihai Ioan ZECHERU
摘要： An airfoil profile for an aircraft, such as an unmanned aerial system. The airfoil profile includes a leading edge portion and a trailing edge portion that are spaced apart along a chordwise direction, an airfoil centroid; and an upper airfoil surface and a lower airfoil surface. The airfoil surfaces are shaped such that the pressure center of the lifting force is arranged at the same chord location as the airfoil centroid or closer to the trailing edge portion along the chordwise direction than the airfoil centroid. With this, a pitch-down momentum is generated that urges the leading edge portion towards a lower angle of attack.
-
公开(公告)号：US20240002034A1
公开(公告)日：2024-01-04
申请号：US18208181
申请日：2023-06-09
申请人： Whisper Aero Inc.
发明人： Mark Douglass Moore , Ian Andreas Villa , Devon Jedamski , Andrew Stephen Hahn , Xiaofan Fei , Aaron Timothy Perry
摘要： A ducted wing is configured to be connected to an aircraft. The ducted wing includes an array of integrated jetfoils. Each jetfoil includes a propulsor fan, an upper wing portion, and a lower wing portion that extends past an end of the upper wing portion. Each jetfoil includes a duct formed between the upper wing portion and the lower wing portion where the propulsor is within the duct. Furthermore, each jetfoil may have one or more flaps at the leading edge or the trailing edge of the jetfoil. The jetfoil may have flaps that control either the inlet area or the outlet area of the propulsor fan as well as flaps that control whether the aircraft can operate in one of a plurality of different takeoff modes.
-
公开(公告)号：US11840353B2
公开(公告)日：2023-12-12
申请号：US18027827
申请日：2021-09-23
申请人： ZSM HOLDINGS LLC
CPC分类号： B64D41/007 , B64C1/20 , B64C3/14
摘要： An installation configuration for a ram air turbine on an aircraft arranged to operate during a low speed operation. An example aircraft includes a fuselage and a lifting body connected to the fuselage and configured to provide a lifting force on the fuselage, the lifting body including a suction surface and a pressure surface disposed on opposite sides of the lifting body from each other, the suction surface extending from a leading edge of the lifting body to a trailing edge of the lifting body. A ram air turbine is coupled to the lifting body and configured to move between a retracted position where the ram air turbine is stowed inside the aircraft and an extended position where the ram air turbine is disposed above the suction surface of the lifting body.
-
公开(公告)号：US11834176B2
公开(公告)日：2023-12-05
申请号：US16448111
申请日：2019-06-21
申请人： BOMBARDIER INC.
发明人： Ian Chittick , Mark Rakowitz , Thomas Reist
CPC分类号： B64C39/10 , B64C1/0009 , B64C3/14 , B64C25/32 , B64C2039/105
摘要： There is disclosed a blended wing body aircraft including a center body having a lower side and an upper side opposed to the lower side. The center body has a central chord extending from a leading edge to a trailing edge of the center body. The lower side has a lowest point located between a first location forward of a pivot point about which the aircraft rotates during take-off and a second location aft of the pivot point. The first location is at a first distance corresponding to about 10% of a length of the central chord forward of the pivot point.
-
公开(公告)号：US20230257104A1
公开(公告)日：2023-08-17
申请号：US17920875
申请日：2021-04-21
发明人： Guan Chew , Michael Fürstner , Stefan Bender , Mikel Fauri , Malte Rotermund
CPC分类号： B64C11/001 , B64C3/14 , B64C29/0025 , B64C2003/143
摘要： An aircraft includes a wing having an integrated ducted fan. The ducted fan is enclosed at least in sections by a feed lip. The feed lip has a flat curvature on the bow side and a comparatively strong curvature on the rear side.
-
公开(公告)号：US20230174231A1
公开(公告)日：2023-06-08
申请号：US17856320
申请日：2022-07-01
申请人： Patrick O'LEARY
发明人： Patrick O'LEARY
CPC分类号： B64C30/00 , B64C3/14 , B64C2003/146 , B64C2003/149
摘要： A wing structure for a supersonic aircraft including a pair of supersonic wave-tripping channels formed on each of two laterally extending wings of the supersonic aircraft, wherein each of the pair of supersonic wave-tripping channels extend in a span-wise direction of the wings respectively, wherein an upper supersonic wave-tripping channel of the pair of supersonic wave-tripping channels is disposed on an upper surface of each of the wings and a lower supersonic wave-tripping channel of the pair of supersonic wave-tripping channels is disposed on a lower surface of each of the wings, wherein the upper supersonic wave-tripping channel and the lower supersonic wave-tripping channel are set back from a leading edge of the wings respectively.
-
-
-
-
-
-
-
-
-
搜索结果
329 条记录 (耗时 0.025 秒)
