JP5335618B2 - ダクテッドファン無人航空機用の騒音を抑える支柱支持システム - Google Patents
ダクテッドファン無人航空機用の騒音を抑える支柱支持システム Download PDFInfo
- Publication number
- JP5335618B2 JP5335618B2 JP2009196925A JP2009196925A JP5335618B2 JP 5335618 B2 JP5335618 B2 JP 5335618B2 JP 2009196925 A JP2009196925 A JP 2009196925A JP 2009196925 A JP2009196925 A JP 2009196925A JP 5335618 B2 JP5335618 B2 JP 5335618B2
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- JP
- Japan
- Prior art keywords
- leg
- ducted fan
- fuselage
- struts
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 5
- 230000003993 interaction Effects 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
- B64U10/13—Flying platforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U20/00—Constructional aspects of UAVs
- B64U20/20—Constructional aspects of UAVs for noise reduction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U30/00—Means for producing lift; Empennages; Arrangements thereof
- B64U30/20—Rotors; Rotor supports
- B64U30/26—Ducted or shrouded rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U50/00—Propulsion; Power supply
- B64U50/10—Propulsion
- B64U50/13—Propulsion using external fans or propellers
- B64U50/14—Propulsion using external fans or propellers ducted or shrouded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
- B64D2033/0206—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes comprising noise reduction means, e.g. acoustic liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U20/00—Constructional aspects of UAVs
- B64U20/10—Constructional aspects of UAVs for stealth, e.g. reduction of cross-section detectable by radars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2101/00—UAVs specially adapted for particular uses or applications
- B64U2101/15—UAVs specially adapted for particular uses or applications for conventional or electronic warfare
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Remote Sensing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
したがって、一態様において、本発明は、ダクテッドファン無人航空機用の騒音を抑える支柱支持システムであって、(a)開口を画成するダクテッドファン胴体と、(b)胴体の開口を通って長手方向に延び、(1)エンジン、(2)エンジンに回転可能に取り付けられる駆動機構、および(3)駆動機構上に取り付けられるファンを備える中心体と、(c)ダクテッドファン胴体と中心体の間に延び、曲線状接合部によって互いに接合される第1の脚部および第2の脚部をそれぞれが有する複数の支柱とを備える支柱支持システムを提供する。第1の脚部は、ダクテッドファン胴体に取り付けられ、第2の脚部は、エンジンに取り付けられる。複数の支柱は、ファンの上流に配置され、複数の支柱のそれぞれの第1の脚部とダクテッドファン胴体との間の接合部は、ダクテッドファン胴体の前縁のハイライトの外側にある。
本明細書では、支柱支持システム10に関する全ての上述の説明および実施形態は、他の実施形態と組み合わせることができる。
12 ダクテッドファン無人航空機
14 ダクテッドファン胴体
16 中心体
18 支柱
20 第1の脚部
22 第2の脚部
24 接合部
26 ハイライト
28 ダクテッドファン胴体前縁
30 カウル
32 接合部
34 内面
36 支柱後縁
38 距離
40 支柱前縁
42 開口
44 前進傾斜角
46 後退傾斜角
Claims (3)
- ダクテッドファン無人航空機用の騒音を抑える支柱支持システムであって、
開口を画成するダクテッドファン胴体と、
前記胴体の前記開口を通って長手方向に延び、エンジン、前記エンジンに回転可能に取り付けられる駆動機構、および前記駆動機構上に取り付けられるファンを備える中心体と、
前記ダクテッドファン胴体と前記中心体の間に延び、曲線状接合部によって互いに接合される第1の脚部および第2の脚部をそれぞれが有し、前記第1の脚部が前記ダクテッドファン胴体に取り付けられ、前記第2の脚部が前記エンジンに取り付けられる、複数の支柱であって、前記ファンの上流に配置され、前記複数の支柱のそれぞれの前記第1の脚部と前記ダクテッドファン胴体との間の接合部が前記ダクテッドファン胴体の前縁のハイライトの外側にある、複数の支柱と
を備える、支柱支持システム。 - 前記複数の支柱のそれぞれの前記第1の脚部の長さに沿う後縁が、前記第1の脚部が前記曲線状接合部と出合うポイントまで、前記ダクテッドファン胴体の前縁のハイライトの周囲の外側にある、請求項1に記載の支柱支持システム。
- 前記第1の脚部および前記第2の脚部が、実質的に、互いに垂直である、請求項1に記載の支柱支持システム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/262,428 | 2008-10-31 | ||
US12/262,428 US8070092B2 (en) | 2008-10-31 | 2008-10-31 | Noise-suppressing strut support system for an unmanned aerial vehicle |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2010105654A JP2010105654A (ja) | 2010-05-13 |
JP2010105654A5 JP2010105654A5 (ja) | 2012-06-07 |
JP5335618B2 true JP5335618B2 (ja) | 2013-11-06 |
Family
ID=41528623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009196925A Expired - Fee Related JP5335618B2 (ja) | 2008-10-31 | 2009-08-27 | ダクテッドファン無人航空機用の騒音を抑える支柱支持システム |
Country Status (3)
Country | Link |
---|---|
US (1) | US8070092B2 (ja) |
EP (1) | EP2181921A3 (ja) |
JP (1) | JP5335618B2 (ja) |
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EP2913270B1 (en) * | 2014-02-28 | 2016-02-24 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | Rotorcraft with at least one main rotor and at least one counter-torque rotor |
DE102014006112A1 (de) * | 2014-04-29 | 2015-10-29 | Autogyro Ag | Luftfahrzeug |
CN107614379A (zh) | 2015-05-25 | 2018-01-19 | 多特瑞尔技术有限公司 | 用于飞行器的护罩 |
US10556702B2 (en) | 2016-07-13 | 2020-02-11 | General Electric Company | Aircraft having an airflow duct |
CN106782491B (zh) * | 2017-03-17 | 2020-10-23 | 英华达(上海)科技有限公司 | 无人机噪音抑制装置及其方法 |
CN110997486A (zh) | 2017-07-24 | 2020-04-10 | 多特瑞尔技术有限公司 | 护罩 |
US11767097B2 (en) | 2018-04-17 | 2023-09-26 | University Of Kansas | Acoustic noise suppressing ducted fan propulsor mounting arrangement and treatments |
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US11827344B2 (en) * | 2020-12-09 | 2023-11-28 | Textron Innovations Inc. | Low noise ducted fan |
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2008
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-
2009
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- 2009-08-27 JP JP2009196925A patent/JP5335618B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US8070092B2 (en) | 2011-12-06 |
EP2181921A3 (en) | 2014-03-12 |
US20100108809A1 (en) | 2010-05-06 |
EP2181921A2 (en) | 2010-05-05 |
JP2010105654A (ja) | 2010-05-13 |
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