公开(公告)号：WO1994005545A1

公开(公告)日：1994-03-17

申请号：PCT/US1992007437

申请日：1992-09-03

Applicant: KREPAK, John, C.

IPC: B64C27/10

CPC classification number: B64C27/20 ,  B64C11/00 ,  B64C11/001 ,  B64C27/10

Abstract: A rotary airscrew having a central hub (9) with coaxial first and second counter-rotating drive shafts (10, 11), a first set of a plurality of non-lift blades (10) connected to the first drive shaft (10) for rotation to be rotated for moving air therewith, a second set of a plurality of primary airfoil blades (2) connected to the second drive shaft (11), to be rotated counter to the rotation direction of the plurality of non-lift blades, and spaced apart from the non-lift blades with a small clearance distance to allow non-contacting counter-rotation, and a ring (3) for supporting the first and second sets of blades with a small clearance distance between the ends as they are rotated.

Abstract translation: 一种具有具有同轴的第一和第二反向旋转驱动轴（10,11）的中心毂（9）的旋转式螺旋桨，连接到第一驱动轴（10）的多个非提升叶片（10）的第一组，用于 与第二驱动轴（11）连接的第二组多个主翼型叶片（2）相对于多个非提升叶片的旋转方向旋转，以及 与非提升叶片间隔开，具有小的间隙距离以允许非接触反向旋转;以及环（3），用于在端部旋转时以两端之间的小间隙距离支撑第一组叶片和第二组叶片。

公开(公告)号：WO2019145694A1

公开(公告)日：2019-08-01

申请号：PCT/GB2019/050162

申请日：2019-01-22

Applicant: VB HI-TECH VENTURES LIMITED

Inventor： BADALASSI, Vittorio

IPC: B64C29/02 ,  B64C39/02 ,  B64C27/20

CPC classification number: B64C39/026 ,  B64C11/001 ,  B64C27/20 ,  B64C29/02

Abstract: The disclosure relates to a vertical take-off and landing, VTOL, flying machine. The machine includes a ducted fan having an intake side and an outlet side, at least two co-axial rotors configured to contra-rotate about a fan axis X when driven in rotation; a primary drive source arranged substantially co-axially with the ducted fan and to the outlet side of the ducted fan; and first and second thrust air ducts configured to split thrust from the ducted fan into a pair of thrust streams and to guide the two respective thrust streams to opposite respective sides of the primary drive source, the ducts being rotatable to direct motion of the machine. A number of configurations of secondary drive sources and alternative thrust sources are provided for improved safety.

公开(公告)号：WO2018146548A1

公开(公告)日：2018-08-16

申请号：PCT/IB2018/000174

申请日：2018-02-06

Applicant: HANGZHOU ZERO ZERO TECHNOLOGY CO., LTD

Inventor： ZHANG, Lei ,  WANG, Zhaozhe ,  ZHANG, Tong

IPC: B64C27/08

CPC classification number: B64C39/024 ,  B64C11/001 ,  B64C27/006 ,  B64C2201/027 ,  B64C2201/108 ,  B64D45/00

Abstract: An aerial system, preferably including one or more housings. A housing for an aerial system, preferably including: a first and second piece that cooperatively surround one or more propellers of the aerial system; and a retention mechanism that removably couples the first piece to the second piece. A method for aerial system operation, preferably including attaching and/or detaching housing pieces of the aerial system.

公开(公告)号：WO2018089067A2

公开(公告)日：2018-05-17

申请号：PCT/US2017/046193

申请日：2017-08-10

Applicant: GENERAL ELCTRIC COMPANY

Inventor： NIERGARTH, Daniel, Alan ,  VONDRELL, Randy, M. ,  MILLER, Brandon, Wayne ,  MARRINAN, Patrick, Michael ,  PASTOUCHENKO, Nikolai, N. ,  CHEUNG, Lawrence, Chih-hui

CPC classification number: B64D33/08 ,  B64C11/001 ,  B64C21/06 ,  B64D27/10 ,  B64D27/24 ,  B64D2027/026 ,  F01D15/10 ,  F01D15/12 ,  F02C6/206 ,  F02C7/14 ,  F02K3/062 ,  F02K5/00 ,  F04D29/056 ,  F04D29/063 ,  F04D29/325 ,  F04D29/582 ,  F05D2220/323 ,  F05D2260/213 ,  F05D2260/98 ,  Y02T50/676

Abstract: A propulsion system for an aircraft includes an electric propulsion engine. The electric propulsion engine includes an electric motor and a fan rotatable about a central axis of the electric propulsion engine by the electric motor. The electric propulsion engine also includes a bearing supporting rotation of the fan and a thermal management system. The thermal management system includes a lubrication oil circulation assembly and a heat exchanger thermally connected to the lubrication oil circulation assembly. The lubrication oil circulation assembly is configured for providing the bearing with lubrication oil. Such an electric propulsion engine may be a relatively self-sufficient engine.

Abstract translation: 用于飞机的推进系统包括电力推进发动机。 电推进发动机包括电动机和通过电动机围绕电推进发动机的中心轴线旋转的风扇。 电力推进发动机还包括支撑风扇旋转的轴承和热管理系统。 热管理系统包括润滑油循环组件和热连接到润滑油循环组件的热交换器。 润滑油循环组件被配置为向轴承提供润滑油。 这种电动推进发动机可以是相对自给自足的发动机。

公开(公告)号：WO2017058329A3

公开(公告)日：2017-05-11

申请号：PCT/US2016041167

申请日：2016-07-06

Applicant: NORTHROP GRUMMAN SYSTEMS CORP

Inventor： LINCH JONATHON J ,  RAHRIG KYLE M

IPC: B64C11/00 ,  B64C39/02

CPC classification number: B64C11/001 ,  B64C39/024 ,  B64C39/10 ,  B64C2039/105 ,  B64C2201/024 ,  B64C2201/028 ,  B64C2201/104 ,  B64C2201/108 ,  B64C2201/165

Abstract: A propeller includes a hub coaxially surrounding a longitudinal axis. A ring shroud coaxially surrounds the longitudinal axis and is spaced radially from the hub. The ring shroud includes an inner ring surface and a radially spaced, oppositely facing outer ring surface. At least one propeller blade is fixedly attached to both the hub and the inner ring surface and extends radially therebetween for mutual rotation therewith. At least one extending blade has a first extending blade end radially spaced from a second extending blade end. The first extending blade end is fixedly attached to the outer ring surface. The second extending blade end is cantilevered from the first extending blade end and is radially spaced from the ring shroud.

Abstract translation: 螺旋桨包括同轴地围绕纵向轴线的轮毂。 环罩围绕纵轴同轴，并与轮毂径向隔开。 环罩包括内环表面和径向隔开的相对朝外环表面。 至少一个螺旋桨叶片固定地连接到轮毂和内环表面并且在其间径向延伸以与其一起相互旋转。 至少一个延伸叶片具有与第二延伸叶片端部径向隔开的第一延伸叶片端部。 第一延伸刀片端部固定地附接到外部环表面。 第二延伸刀片端部从第一延伸刀片端部悬伸并且与环状护罩径向隔开。

公开(公告)号：WO2016209331A2

公开(公告)日：2016-12-29

申请号：PCT/US2016026680

申请日：2016-04-08

Applicant: NORTHROP GRUMMAN SYSTEMS CORP

Inventor： RAHRIG KYLE ,  SOMMER GEOFFREY ,  WAINFAN BARNABY S

CPC classification number: B64C39/066 ,  B64C11/001 ,  B64C15/14 ,  B64D27/24 ,  B64D29/02 ,  B64D33/06 ,  B64D35/08 ,  B64D2027/026 ,  Y02T50/44 ,  Y02T50/62

Abstract: An extremely quiet short take-off and landing (STOL) aircraft includes: two wings, wherein each wing comprises an engine system; a fuselage structurally connected to each wing; and a ducted fan thruster positioned on the fuselage in an orientation that is rotated relative to the typical orientation on a helicopter. An extremely quiet STOL aircraft includes: two wings, wherein each wing comprises an engine system; a fuselage structurally connected to each wing; channel shrouds surrounding at least one of the engine systems; and a ducted fan thruster positioned on the fuselage. An extremely quiet STOL aircraft includes: two wings, wherein each wing comprises an engine system, the engine system comprising two engine dual packs; a fuselage structurally connected to each wing; and a ducted fan thruster positioned on the fuselage.

Abstract translation: 一架非常安静的短距起飞（STOL）飞机包括：两个机翼，其中每个机翼包括发动机系统; 与机翼结构连接的机身; 以及以相对于直升机上的典型方向旋转的方向定位在机身上的管道式风扇推进器。 非常安静的STOL飞机包括：两个翼，其中每个翼包括发动机系统; 与机翼结构连接的机身; 围绕至少一个发动机系统的通道护罩; 以及位于机身上的风管推进器。 一个非常安静的STOL飞机包括：两个翼，其中每个翼包括发动机系统，该发动机系统包括两个发动机双重组合; 与机翼结构连接的机身; 以及位于机身上的风管推进器。

公开(公告)号：WO2016093905A1

公开(公告)日：2016-06-16

申请号：PCT/US2015/047290

申请日：2015-08-27

Applicant: TZUNUM AIRCRAFT LLC

Inventor： KNAPP, Burton, Matthew ,  KUMAR, Ashish, Andrew

IPC: H04W16/28 ,  G08G5/00

CPC classification number: B64D27/24 ,  B64C11/001 ,  B64C11/44 ,  B64D41/007 ,  B64D2027/026 ,  B64D2221/00 ,  G01C21/20 ,  G08G5/0021 ,  G08G5/0034 ,  G08G5/0052 ,  G08G5/0086

Abstract: Systems, apparatuses, and methods for overcoming the disadvantages of current air transportation systems that might be used for regional travel by providing a more cost effective and convenient regional air transport system. In some embodiments, the inventive air transport system, operational methods, and associated aircraft include a highly efficient plug-in series hybrid-electric powertrain (specifically optimized for aircraft operating in regional ranges), a forward compatible, range-optimized aircraft design, enabling an earlier impact of electric -based air travel services as the overall transportation system and associated technologies are developed, and platforms for the semi-automated optimization and control of the powertrain, and for the semi-automated optimization of determining the flight path for a regional distance hybrid-electric aircraft flight.

Abstract translation: 通过提供更具成本效益和更方便的区域航空运输系统，克服当前可能用于区域旅行的航空运输系统的缺点的系统，设备和方法。 在一些实施例中，本发明的空中运输系统，操作方法和相关联的飞行器包括高效率的插入式串联混合动力传动系（针对在区域范围内运行的飞机专门优化的），前向兼容的，范围优化的飞行器设计，使能 随着整个运输系统和相关技术的发展，电气式航空旅行服务的影响越来越大，动力系统半自动优化和控制的平台以及确定区域航行路径的半自动优化 距离混合动力飞机飞行。

公开(公告)号：WO2016089569A1

公开(公告)日：2016-06-09

申请号：PCT/US2015/060197

申请日：2015-11-11

Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION

Inventor： LINCH, Jonathon J. ,  RAHRIG, Kyle M.

IPC: B64C11/00

CPC classification number: B64C11/001 ,  B64C11/08 ,  B64C11/18 ,  B64C39/024 ,  B64C39/10 ,  B64C2039/105 ,  B64C2201/028 ,  B64C2201/162 ,  B64C2220/00 ,  Y02T50/12

Abstract: A propeller includes a hub coaxially surrounding a longitudinal axis. A ring shroud coaxially surrounds the longitudinal axis and is spaced radially from the hub. At least one propeller blade is fixedly attached to both the hub and ring shroud and extends radially therebetween for mutual rotation therewith. At least one stub blade has a first stub end radially spaced from a second stub end. The first stub end is fixedly attached to a selected one of the hub and ring shroud. The second stub end is cantilevered from the first stub end and is radially interposed between the first stub end and the selected one of the hub and ring shroud.

Abstract translation: 螺旋桨包括同轴地围绕纵向轴线的轮毂。 环形护罩同轴地围绕纵向轴线并与轮毂径向间隔开。 至少一个螺旋桨叶片固定地附接到轮毂和环形护罩上并且在其间径向延伸以与其相互旋转。 至少一个短刀片具有与第二短截线径向间隔开的第一短截线端。 第一短截线端部固定地连接到轮毂和环形护罩中的所选择的一个。 第二短截线端部从第一短截线端部悬臂，并且径向插入在第一短截线端与轮毂和环形护罩中选定的一个之间。

公开(公告)号：WO2014112948A1

公开(公告)日：2014-07-24

申请号：PCT/SG2014/000006

申请日：2014-01-13

Applicant: SINGAPORE TECHNOLOGIES AEROSPACE LTD

Inventor： CHAN, Keen Ian

IPC: B64C29/00 ,  B64C27/20

CPC classification number: B64C11/001 ,  B64C27/20

Abstract: Various embodiments provide a method for improving crosswind stability of a propeller duct. The method comprises defining an initial duct section based on a predetermined airfoil section having an initial value of a geometric parameter such that the geometric parameter of a portion of the initial duct section has the initial value. The method also comprises determining fluid flow paths around the initial duct section when subject to a crosswind having a predetermined crosswind speed. The method further comprises varying the initial value of the geometric parameter of the initial duct section to a threshold value which causes separation of fluid flow paths at a windward side of the initial duct section at and above the predetermined crosswind speed to form an improved duct section. Various embodiments provide a corresponding apparatus, system and/or computer readable medium.

Abstract translation: 各种实施例提供了一种用于提高螺旋桨管道的侧风稳定性的方法。 该方法包括基于具有几何参数的初始值的预定翼型部分限定初始管道段，使得初始管道段的一部分的几何参数具有初始值。 该方法还包括当经受具有预定侧风速度的侧风时，确定围绕初始管道段的流体流动路径。 该方法还包括将初始管道部分的几何参数的初始值改变为阈值，该阈值导致在预定侧风速度和高于预定侧风速度的初始管道部分的迎风面处分离流体流动路径，以形成改进的管道部分 。 各种实施例提供对应的装置，系统和/或计算机可读介质。

公开(公告)号：WO2014066508A3

公开(公告)日：2014-07-17

申请号：PCT/US2013066392

申请日：2013-10-23

Applicant: GEN ELECTRIC

Inventor： ZATORSKI DAREK TOMASZ ,  HAMEL JEFFREY ANTHONY

IPC: F01D5/14 ,  B64C11/18 ,  B64C11/46 ,  B64D33/02 ,  B64D33/04 ,  F02C6/20 ,  F02K1/46 ,  F02K3/02 ,  F03D1/06

CPC classification number: F01D17/16 ,  B64C11/001 ,  B64C11/18 ,  B64C11/46 ,  B64C11/48 ,  F01D9/02 ,  F02C6/206 ,  F02K1/46 ,  F02K3/025 ,  F05B2240/12 ,  F05B2260/96 ,  F05D2220/324 ,  F05D2220/325 ,  F05D2250/30 ,  F05D2250/51 ,  F05D2250/52 ,  F05D2260/14 ,  Y02E10/721 ,  Y02T50/66 ,  Y02T50/671

Abstract: An unducted thrust producing system has a rotating element with an axis of rotation and a stationary element. The rotating element includes a plurality of blades, and the stationary element has a plurality of vanes configured to impart a change in tangential velocity of the working fluid opposite to that imparted by the rotating element acted upon by the rotating element. The system includes an inlet forward of the rotating element and the stationary element.

Abstract translation: 未被压缩的推力产生系统具有带旋转轴线和静止元件的旋转元件。 所述旋转元件包括多个叶片，并且所述固定元件具有多个叶片，所述多个叶片构造成使所述工作流体的切向速度的变化与由所述旋转元件作用的所述旋转元件赋予的切向速度相反。 该系统包括旋转元件和静止元件前方的入口。