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Fluid dynamic device with thrust control shroud

A fluid power and thrust control technology, applied in the field of aircraft, can solve problems such as loud noise, achieve the effects of saving manufacturing costs, increasing the dynamic speed, improving responsiveness and controllability

Active Publication Date: 2011-06-01
ENTECHO (PTY) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Further, in order to obtain maximum lift from the rotor, the blade tips must operate at the highest allowable speed close to sonic conditions, which means considerable noise

Method used

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  • Fluid dynamic device with thrust control shroud
  • Fluid dynamic device with thrust control shroud
  • Fluid dynamic device with thrust control shroud

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0065] see figure 1 , which shows an aircraft 100 invented by the applicant which is intended for use in a variety of applications. The aircraft 100 is approximately 2.4 meters wide and includes a central load bearing space 110 that provides an operator (not shown) with a cockpit operating area 111 while maximizing the fluid available to enter the drum rotor fan 120 area of ​​flow (i.e. airflow). The operator may sit in the cockpit 111 facing forward (as indicated by arrow 112). Airflow reaching the drum rotor fan 120 flows through the central region of the aircraft (that is, through the central load bearing space 110 ) and is radially exhausted by the rotor fan 120 . Radial airflow is redirected downward by shroud 130 . The mask 130 is formed of a flexible material. The lower portion of the shroud includes a rigid outer rim 140 . The rim 140 can be moved by the operator so that the shroud 130 can be deflected thereby changing the position of the exit area of ​​the shroud...

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PUM

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Abstract

A fluid dynamic device (100) for directing fluid flow to generate thrust comprises a thrust control shroud (130) disposed about a central axis (210) of said fluid dynamic device (100) for directing a fluid flow between an upstream fluid intake region (220) and a downstream fluid exit region (222), forming a fluid exit area, of said shroud (130) to generate thrust wherein a displacement of said fluid exit region (222) of said shroud (130) with respect to said central axis (210) results in a translation of said fluid exit area (222) such that the level of shear stress induced in that part of the shroud (130) disposed laterally to the direction of translation of the shroud (130) is minimised.

Description

technical field [0001] The invention relates to a hydrodynamic device with a thrust control or thrust directing shroud. The invention is particularly applicable to pneumatic lift devices utilizing drum rotor fans to generate thrust and aircraft incorporating such devices. Background technique [0002] The applicant has developed a new type of aircraft which is capable of hovering in a fixed position in the air. [0003] A powered manned or unmanned aircraft that may be capable of hovering in a fixed position in the air. Such aircraft can range from those operating close to the ground on air cushions to those capable of free flight and vertical take-off and landing. Vehicles operating close to the ground can be designed for transportation and sightseeing, while free-flying vehicles can operate at substantially lower altitudes than commercial aircraft and can be considered for applications including airport-to-business commuting, home-office commuting, search and rescue and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C29/02B64C15/02B64C39/00B64C7/00B64C27/20B64D33/04
CPCB64C27/20B64C2201/108B64C2201/088B64C2201/027B64C39/064B64U70/80B64U10/13B64U30/26B64U2201/202
Inventor 格雷格·查普曼雅各布·考夫考克里斯多佛·基姆·施伦克
Owner ENTECHO (PTY) LTD