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JP2003072692 |
To smoothen a flow of air flowing along an outer wall of a body tip center part of an aircraft or a rocket by generating a swirl in relation to the air flowing along the outer wall of the body tip center part, and to smoothen a stream of...
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JP2003049607 |
To provide a pipe or a duct capable of decelerating the discharged fluid from a main machine by low pressure loss, being shortened in comparison with a conventional one, and contributing on the miniaturization of the equipment and the co...
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JP2003042108 |
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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JP2003042893 |
To raise the control power of an ultrasonic nozzle for a flow of a gas blown out from its outlet by reducing the whole range of a boundary layer formed in the nozzle body to increase the sectional area of a main flow of the gas correspon...
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JP2003021099 |
To provide a diffuser capable of improving pressure recovery while suppressing increase of size of the diffuser and increase of flow peeling and abrasion resistance.This diffuser has a splitter comprising a plurality of plate members cir...
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JP2003021262 |
To provide a fluid control device with a heater capable of suppressing the increase of the installation area following the addition of the heater.Right-and-left tape heaters 11 are disposed on both sides of at least one line, and the tap...
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JP3389068 |
To form a flow passage resistors element to be inserted into a pipe in order to dispose plural resistors into the flow passage of the pipe in such a manner that pressure loss may be reduced while a turbulence generating capability is mai...
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JP3387777 |
To adequately prevent gas from flowing reversely, by constituting a mixing gas supplying device with a manifold which mixes gas and supplies it to a gas using object, and a flow velocity adjuster which equalizes ratio of path cross secti...
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JP2002349515 |
To provide a multi-stage orifice capable of eliminating erosion of downstream piping caused by cavitation in the piping and also obtaining a stable characteristic. Through an injection port 27 a low temperature water is injected to the d...
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JP2002286191 |
To provide raised covering which can reduce fluid resistance by being applied to piping, ducts, etc., whose general inner-face is smooth.A covering is attached at least partially to an inner face of a cylindrical member for conveying flu...
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JP2002266816 |
To reduce the turbulence frictional resistance on a libretto face.The turbulence frictional resistance is generated when the fluid of low speed near a surface and the main current of high speed flowing on a central part are strongly mixe...
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JP2002266815 |
To solve problems in conventional straightening vanes wherein the vortex generated at a downstream side end part of the straightening vane located at an upstream side is collided with an upstream end part of the straightening vane locate...
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JP2002257104 |
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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JP2002257105 |
To decrease the pressure drag on a body in motion in a fluid.The body moving in air or water is equipped with a rotary body in front of the body in motion in advancing direction, formed to an optional cross sectional shape in parallel wi...
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JP2002257094 |
To provide an axial flow pump capable of materializing a compact design by reducing length from an outlet of a impeller to a delivery center of a delivery pipe and controlling deterioration of pump performances such as total pump head, d...
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JP3344881 |
To prevent fluid leakage during a water supply stopping period. A valve element channel 6 which is connected/disconnected to/from a valve casing channel 2 in a fully opening position/a water stopping fully closing position B, is formed t...
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JP2002239366 |
To provide a new fluid driving device and a fluid mixing device capable of easily realizing a fine size or a micro size of a passage for carrying out a driving or a mixing of the fluid and realizing a quantitative driving or mixing of th...
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JP2002206688 |
To solve the problem in the bent pipe part wherein in a complicated passage for passing a fluid in a pipeline, when the fluid passes through the pipeline, elongation, vibration, temperature, pressure, impact force and deformation have a ...
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JP2002180999 |
To improve pressure recovery of a diffuser.A splitter including a hollow core member 14 enlarged along a center axial line O from an inlet opening 14a to an outlet opening 14b is arranged inside a diffuser body 12 comprised of a hollow m...
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JP2002168662 |
To obtain a straightening apparatus, having a small size and a highly straightening effect by eliminating disadvantages of a long straightening tube of the conventional straightening apparatuses, using the straightening tube and having h...
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JP2002155898 |
To prevent generation of an air suction vortex with simple structure, without carrying out civil engineering works for vortex prevention.A subpassage forming member 28 for forming a subpassage 30 between the subpassage forming member 28 ...
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JP3310878 |
To adjust flow rate while smoothly allowing fluid without stopping the flow of fluid and without changing the sectional area of a passage. A straight tubular main body 4 in which an opening hole 5 extending in the axial direction is prov...
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JP3308470 |
To provide a flow noise control system that is able to check any noise to be produced at a time when a throttle valve installed in an intake passage or the like of an internal combustion engine is opened. Two circular low barrier members...
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JP3297316 |
To prevent vibration environmental pollution from being generated in an excitation apparatus for a vibration table in an up-and-down-direction vibration testing machine or the like by a configuration wherein a vibration with a low-freque...
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JP2002106008 |
To provide a method of efficiently manufacturing a rectifying plate for city water having net members with accurately positioned meshes.In this method of manufacturing the rectifying plate for city water, plurality of material nets 21, 2...
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JP2002106430 |
To provide an excellent intake pipe by contriving ways to reduce the pressure loss of an air flow even when the intake pipe has a diffuser shape with a noise suppression effect.The intake pipe, having a diffuser part which starts from a ...
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JP2002098109 |
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 times...
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JP2002098285 |
To eliminate the bad influence of thermal stratification formed by a cavity flow generated inside of a block branch pipe line to the piping.In the water piping structure of a branch pipe line 120 connected to a main pipe 110 for passing ...
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JP2002089479 |
To prevent generation of a top part underwater vortex and to prevent vibration and noise of a vertical shaft pump, in a suction water tank of the vertical shaft pump.This suction water tank 20 for the vertical shaft pump leading water in...
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JP2002079996 |
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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JP2002039118 |
To reduce air flow noises generated on a surface of an object in contact with fluid and improve the durability and weather resistance.Many thin-walled and minute chips 2, 2, etc., are provided on the surface of the object 1 in contact wi...
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JP2002039571 |
To effectively and uniformly reduce pressure loss and release noise at the entire region of the air blow grill of an outdoor machine for air conditioners.Grill blades 2a, 2a, etc., or the like for composing the air blow grill 2 in the la...
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JP2002021815 |
To add a surface active agent to water flowing in a pipe, evaluate fluid friction generated by an influence of a pipe wall surface, and rationally perform this operation.Relating to a vortex formed in a wall surface boundary layer of a c...
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JP3258718 |
PURPOSE: To achieve a suitable ventilating system by intersecting and connecting a hollow board-shaped member having a specific shape to a cylindrical hood main body, and restraining a counterflow, generated when any wind pressure is pro...
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JP2001324134 |
To prevent resonance of a duct structure by restraining oscillation of damper blades caused by eddies resulting from separation of fluid.Each damper blade 6c rotates with a damper shaft 6b of a center shaft disposed in the cascade direct...
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JP2001314781 |
To provide a technique capable of jetting fluid with uniform pressure from each nozzle and to work uniformly without making the nozzle head large- sized.A chamber 8 is arranged in the nozzle head 1 so as to cover set holes 7 of plural no...
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JP2001300292 |
To provide a high performance flow deflecting apparatus (5). A substantially flat buffle is arranged in a conduit (2) having a first portion (3) which is in a first flow direction (3a) and a second portion (4) which is in a second flow d...
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JP3240854 |
PURPOSE: To prevent condensation onto a direction deflecting plate, and further, contrive to execute a cost down of parts, and besides, prevent adhesion of soil onto a ceiling face or a wall face in the vicinity of an outlet in the outle...
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JP2001280311 |
To provide a duct for inhibiting the separation of an air flow at a bent portion and the loss of suction pressure and reducing the noises of the air flow. The duct 13 having a bent portion 14 comprises a number of dimples 15 provided in ...
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JP3230075 |
To appropriate an existing diaphragm pump capable of transmitting a large pulsating pressure change generated in an air intake route to a diaphragm pump by relaxing it and designed in consideration of a small pulastile change generated i...
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JP2001248994 |
To provide a method for reducing pulsation at the time of performing a heat exchanging operation of a heat exchanger by a simple configuration.There is provided a method for reducing pulsation at the time of performing a heat exchanging ...
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JP2001235219 |
To solve the problem in the conventional art that a wire mesh constitutes a great resistance to flow, and further that a space for attaching a structure such as wire mesh is hard to find in a device for preventing resonance of tube nests...
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JP2001221114 |
To earn an excellent reputation in pressure loss, flow burble, and a flow balance related to a flow path branching off from a midpoint, and to prevent breakage and falling off of a heater element even if using an existing air heater, in ...
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JP3219875 |
PURPOSE: To provide a device for mixing two gaseous components, having a tangential inlet flow duct opening into an inlet flow gap being supplied with gaseous components through an inlet nozzle, in which mixing efficiency of two gaseous ...
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JP2001200812 |
To provide a flow straightening device capable of making uniform a flow velocity distribution on the downstream, faciliting work execution, reducing an installation cost, and installing at a position apart from a catalyst layer. This flo...
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JP2001193713 |
To reduce vibrations and noise of a piping accompanied with the generation of cavitation. This orifice plate has a plurality of through holes 11 formed on a plate 10, is arranged in a pipe line 6 in which a fluid flows, and generates a p...
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JP2001193629 |
To provide a wind-power control device behind a plane receiving wind for adjusting the draft volume or the draft pressure on the plane. This wind-power control device comprises a generator 4, a vertical shaft 5 rotatably connected with t...
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JP2001193712 |
To prevent vibrations and noise of a piping accompanied with the generation of cavitation, and prevent erosion and abration by a jet. This straightening vane 1 for a rotary valve is arranged at an upstream side of the rotary valve 3 of a...
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JP2001162179 |
To provide a catalyst by which a gas stream is effectively disturbed, hence the thickening of a boundary layer generated on the wall face of a passage in the long passage is prevented, and a reactive component in the main gas stream is s...
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JP3198049 |
To stably discharge a fluid in the straightened form along a circumferential surface in a fluid straightener by mounting a straightener type constant flow water saving valve device to a fluid discharging terminal end. After a spherical v...
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