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JP4309252B2 |
A hybrid air boost vehicle makes use of the porous panels and suction devices of a vehicle aerodynamic drag reduction system, and makes use of the air consumed by such a system, to provide the energy and air to power a land or water base...
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JP2009527405A |
A high-lift flap of an aircraft is provided having a device for influencing the flap vortex as well as a device for influencing the flap vortex at the lateral edge of the aerodynamic high-lift flap, which can be achieved effectively and ...
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JP4268886B2 |
The outer skin ( 100 ) of an aerodynamic body ( 40 ) has perforations ( 200 ) arranged in particular patterns in respective spanwise extending groups or bundles ( 250 ). Each perforation is preferably a micro-slot with a length of 100 to...
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JP2009102007A |
To provide a perforation shape and a perforation distribution pattern for a laminar-flow control device using the suction for conquering any harmful or disadvantageous effect.An outer skin of an aerodynamic body has perforations arranged...
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JP4236396B2 |
To obtain a technique to reduce the frictional resistance on the wall based upon a rational criteria. In a flow field forming at the boundary lamina of the fluid flowing along the wall surface, the micro swirl has a diameter of 7-15 time...
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JP2009507723A |
A flow control actuator 10 for a body exposed to fluid flow comprises first and second flow surfaces 14, 16 spaced to define an elongate gap 20 therebetween. An elongate control element is disposed in or adjacent the gap and has an exter...
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JP2009012524A |
To provide a supersonic flying object devised to restrain disturbance by reducing the generation of a shock wave due to separation of an air current in a simple constitution.This supersonic flying object is constituted to guide the air c...
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JP2009501304A |
This invention relates to an element (11) for generating a fluid dynamic force, the element (11) comprising first (13) and second (15) surfaces extending in opposite directions from a leading edge (17) of the element (11) and meeting at ...
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JP2008525741A |
An apparatus and system for combining aerodynamic design with engine power to increase synergy between the two and increase climb performance, engine-out performance, and fuel efficiency for a variety of aircraft or the like.
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JP2008157465A |
To provide a surface structure which is effective in terms of efficiency, economics, manufacturing and maintenance and suitable for the use in a ship, a boat, a pipe used for hydroelectric power generation or the like at a low and mid sp...
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JP2008518828A |
The present invention is directed to a distributed active flow control ("DAFC") system that maintains attached airflow over a highly cambered airfoil employed by an aircraft or other similar applications. The DAFC system includes a prima...
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JP4028509B2 |
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JP2007205359A |
To provide a thin, lightweight, and effective aerofoil of wind turbines, water turbines, and aircraft. In this thin wing 5 of wind turbines, water turbines, and aircraft, a vein-like projecting pattern is formed at least on the front sur...
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JP3954648B2 |
A movable sheet overlying a wing is disclosed that creates laminar flow over its exposed surface. The movable sheet serves as an integral, retractable shield for protecting a suction support structure of a wing against contamination, and...
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JP3932347B2 |
To provide a vortex generator capable of generating a vortex most suitable for the state of stream in the case where separation restraint is required, and actively controlling so as not to generate the vortex in the case where no separat...
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JP3803222B2 |
To reduce the BVI noise of a helicopter effectively. For reducing the BVI noise of the rotor blades 2 of the helicopter, a spoiler 3 capable of being reciprocated nearly in the vertical direction between a protruded position and an unpro...
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JP2006512230A |
An article for reducing the drag caused by a fluid flowing over a surface comprises a backing layer having an outer, exposed patterned surface that reduces drag, and an adhesive bonding layer for bonding the backing layer to the surface ...
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JP2006502914A |
An aircraft wing includes a leading airfoil element and a trailing airfoil element. At least one slot is defined by the wing during at least one transonic condition of the wing. The slot may either extend spanwise along only a portion of...
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JP2006022937A |
To provide fine conical-shaped protrusions which solve the problem that moving objects including aircraft, marine vessels, railroad vehicles, and automobiles which generally require a streamlined and smooth shape have difficulties in eli...
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JP2005537034A |
The invention describes surfaces as well as combinations of surfaces which possess at least two different structure implementations. These structure formations can consist of any combinations of directed and non-directed structures, with...
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JP2005324762A |
To perform enhancement of fuel economy, reduction of burden on a vehicle and consideration for environment with regard to wind-cutting sound, by reducing air resistance since conventional technology for reduction of an air resistance val...
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JP2005325921A |
To perform active control to generate the optimum vortex according to the state of flow when separation restraint is required and not to generate vortex when separation restraint is not required, without a plurality of pores in the wall ...
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JP3714722B2 |
To provide a break-away suppressing means which does not require a large-scale improvement of an air frame structure, the means preventing a break away of a stream at a place where a disorder of air stream is drastic. A small piece 5 is ...
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JP2005299765A |
To provide a sheet capable of being adopted without remodeling it as a surface layer of various moving bodies and reducing friction resistance on the surface of the moving body caused by action of fluid.This friction resistance reducing ...
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JP2005529298A |
A method of controlling fluid flow ( 14 ) in a boundary layer at a fluid-surface interface comprising, providing a plurality of blades ( 11 ) which project from the fluid contracting surface into a boundary layer such that in use the bla...
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JP3692337B2 |
To obtain a peeling controller suitable for controlling a flow along the surface of a wing-shaped substance such as a wing of an aircraft etc. The controller is equipped with a winglike model (wing-shaped substance), an air supplying mec...
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JP2005199870A |
To provide a flying object design system in which a disturbed air flow is processed in response to a temporary condition, an air flow generated at a surface of predetermined location in a flying object is regulated, a flow regulating eff...
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JP3668493B2 |
A reverse delta aerodynamic wing has a basic reverse delta wing portion bounded by a leading edge and by a pair of trailing edges extending from respective ends of said leading edge toward a trailing apex point and respective span-wise w...
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JP2005145411A |
To provide a high lift generating blade which generates the lift in an air flow like a blade of an airplane or a rotating machine, and generates high lift even when the angle of elevation of the lift-generating blade is small.In the high...
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JP2005121209A |
To provide a fluid passage switching element which materializes an in-fluid free moving body with high kinetic performance, an in-fluid free moving body and an attitude control method of the in-fluid free moving body.Output ports 23a, 23...
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JP2005510667A |
This application concerns a method and system using a hydrodynamical effect for producing a potential over a body. The force obtained this way is useful for the propulsion and maneuvering of ships, submarines, aeroplanes, and airships. A...
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JP3638745B2 |
To reduce noise and vibration by providing a rotary spoiler whose top face forms a part of a blade face of a rotor blade on the rotor blade in such a manner that it can rotate freely and protruding the rotary spoiler above the blade face...
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JP3632075B2 |
To provide an obtuse headed object placed in a flow of fluid capable of preventing the occurrence and growth of a Karman voltex in a large scale and reducing a coefficient of resistance by blocking the flow of fluid generating along a su...
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JP2005053456A |
To solve the problem of peeling-off of paint or wax and decrease in effects of the paint or wax with the elapse of time even if the paint or wax is applied on the surface of aircraft, ships, submarines, automobiles, electric trains, trai...
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JP2004524207A |
Formations on the surface of bodies for reducing the drag relative to a medium which the body is located in or close to. The formations comprise a plurality of cavities ( 1,20,40,60 ). The surface in which the cavities are formed is clos...
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JP2004034986A |
To provide a landing device suitable for use for both a front landing device and a main landing device of an airplane.The airplane is provided with the landing device whose noise reduction device reduces a noise level caused during a fli...
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JP3476143B2 |
A laminar flow control system for incorporation in, for example, an aircraft flying surface includes a suction panel comprising a perforated skin (20, 40) mounted on a base member (60), a plenum chamber (30) being in communication with a...
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JP2003530217A |
A method is provided to select appropriate material properties for turbulent friction drag reduction, given a specific body configuration and freestream velocity. The method is based on a mathematical description of the balance of energy...
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JP2002544064A |
A meteorological balloon having improved wind measurement during an ascent stage, includes an inflatable envelope having, during ascent, an upper hemisphere and a lower hemisphere, and presenting an outer surface, a GPS type sonde secure...
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JP2002539035A |
The nozzle of an acoustic jet directs high momentum flux gas particles essentially tangentially into the boundary layer of the flow in a diffuser, an engine air inlet, a jet engine gas flow path or on the suction surface of an airfoil, t...
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JP2002536841A |
A novel material, which is artificially produced, solid, stable morphological mutant of chemically known mineral materials is provided. The material is capable of being activated by exposure to an electric field or physical pressure into...
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JP2002533230A |
An actuator device providing an active surface. The actuator has a base having at least one first electrostatic electrode mounted therein which is oriented for electrostatic cooperative action with an opposing electrostatic electrode in ...
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JP3320072B2 |
An aircraft wing, wing assembly and method of reducing drag are provided. The wing asembly includes a main wing portion (10) and a leading edge high lift portion (12). The high lift portion is movable between a retracted position in whic...
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JP2002525527A |
The bearing structure such as a wing is fitted with toothed platelets (16) at its free edges to break tip vortex produced at these places by fluid pressure distribution. Vortex dissipation is accelerated, vortex remanence is considerably...
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JP2002514500A |
In order to increase the power of fast flowing media, the wall surface (2) of a solid body (1) along which the medium flows, is provided with a plurality of recesses (3; F1, F2, F3) that extend by at least one length (1) in the direction...
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JP3270845B2 |
To provide a boundary layer control mechanism for a short takeoff/ landing distance plane without apprehension generating hot circulation while forming a protruded part behind a pilot seat aerodynamically approximated to an optimum shape...
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JP2002079996A |
To restrain the flow of a fluid along an object from separating from the surface of the object.At least one barrier member 19 is installed on the object surface 1. The barrier member 19 is extended from the object surface 1 to a separate...
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JP2001354198A |
To provide a device effectively reducing noises of an airplane caused by running out of an adjusting surface.On a deformed surface 10 in a side, an eddy current generator 1 is provided so as to extend over at least a part of a deformed d...
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JP2001301696A |
To provide the noise lowering structure for lowering the aerodynamic noise of blades of a propeller and the flow noise of outer plates of an airframe. A fur material 1 is tightly adhered to the whole of a surface 20a of an airframe outer...
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JP2001520149A |
An air intake system disposable in an air vehicle turbo engine housing disposed in an exterior airflow for selectively reducing external engine boundary layer separation drag and external engine friction drag on the engine housing compri...
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