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JP2006214177 |
To prevent the occurrence of breakage of a valve body, a water leak from a water supply pipe and a breakdown of a water heater, etc. by effectively suppressing the occurrence of a water hammer.In order to gradually decrease water flowing...
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JP2006207852 |
To prevent inflow of irregular flow generated in a valve chest to a valve port and a fluid outlet port, to prevent the irregular flow from acting on a tip end portion of a valve element as biased load including a radial component, to red...
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JP2006207833 |
To suppress the occurrence of an unusual sound and pressure fluctuation generated by vibration of valve components due to the flow of a fluid passing through a valve part during operation of a relief valve.A relief valve 70 for relieving...
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JP2006200552 |
To provide a check valve with a vertical valve element, having stable operation while reducing its so-called chattering caused by repetitive up-and-down flotation of the valve element during a small amount of flow when the amount of flui...
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JP2006194367 |
To provide a water hammer preventing device 1 for damping and reducing water hammer or pulsation generated in a flow path, having improved damping performance while requiring a reduced installation space.The water hammer preventing devic...
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JP2006194448 |
To provide a valve capable of remarkably reducing leakage in closing, reducing unbalance force acting on the valve, and being operated even under a high temperature.This valve comprises a valve body 41, a valve stem 56 penetrated through...
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JP3826951 |
To provide an expansion valve capable of reducing discontinuous refrigerant fluidal noise generated at an outlet side of the constriction as a gas-liquid two-phase refrigerant passes through the constriction without impairing the reliabi...
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JP3828049 |
To stably control the flow of a pressure fluid by damping the pressure fluctuation such as pulsation. This flow control device includes a pulsation damping mechanism 24 having a plurality of wave killing projection parts 77a to 77f proje...
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JP3824019 |
To provide an expansion valve capable of reducing discontinuous refrigerant flow noise generated following passing of gas-liquid two-phase refrigerant flow through a throttle portion, and vibration noise caused by pressure fluctuation fo...
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JP2006177167 |
To provide an outlet side structure with a compact housing improving a degree of freedom in layout, having versatility and reducing fluid pulsation and to provide a check valve used for it.A throttling part 17 is integrally formed on an ...
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JP3821918 |
To restrain an increase in the size and a cost and reduction in a CV value, and obtain a higher sound reducing effect by arranging plural passage holes in a wall of a cylinder, and inclining the respective passage holes in the perpendicu...
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JP2006170382 |
To provide a flow path on-off valve having greatly reduced abnormal sounds to be generated just before stopping water discharge.A flush valve 10 comprises a body partition wall 4 for partitioning a body 3 into a primary side flow path 1 ...
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JP3817132 |
To provide a steam transformation valve which exhibits such an epoch-making action and effect that are not seen in the past. This steam transformation valve has a first port 1 through which high-temperature high-pressure steam S is made ...
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JP2006153040 |
To easily adjust characteristics of set pressure (a gradient of change) varied in connection with expansion and contraction of a damper chamber in a relief valve having the damper chamber which is arranged on a hydraulic circuit of a hyd...
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JP3809968 |
To prevent occurrence of an abnormal noise when fluid is stopped, by arranging one or a plurality of jet orifices on and/or around a virtual Y axis which identifies a middle projection as an origin on the basis of a small projection and ...
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JP2006138399 |
To provide a flow control valve for setting a flow change rate constant in relation to a turning angle even in any position, without changing a flow rate even if the temperature changes.This flow control valve has an operation shaft 12, ...
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JP3803792 |
To provide a faucet by which a water hammer can be prevented and required discharged water quantity can be obtained. This faucet is composed in such a form as a stationary valve plate 3 is provided on a bottom inside a cylindrical housin...
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JP3803729 |
PURPOSE: To provide a valve which is remarkably less in leakage when closed, less in unbalanced force acting on the valve, and capable of being operated even at high temperatures. CONSTITUTION: A valve comprises a valve body 41, a valve ...
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JP2006127332 |
To provide a flow control valve with a pressure compensation function capable of restraining occurrence of noises in a variable orifice section.The flow control valve 1 comprises a balance piston 30 having a large diameter shaft section ...
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JP3799469 |
To provide a damper for holding differential pressure that is excellently quiet and can restrain pressure fluctuations. An opening part 90A is opened and closed by sliding along a shaft 22, and an air cylinder 24 is installed in a movabl...
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JP2006118664 |
To provide a low noise rotary valve wherein noise and cavitation can be reduced throughout all openings.Mutually orthogonal and communicating penetration passage 30 and communication path 31 are formed on a ball plug 4. An outflow side o...
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JP3795334 |
To prevent generation of a water hammering by a rapid stop of water flow resulting from rapid rotation of a cylinder valve element of a valve which includes an opening for passing water provided on the cylinder valve element of a cylindr...
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JP3795302 |
To provide a flap valve capable of reducing impact load when a valve element closes, without requiring high strength of a valve trunk or skeleton for attaching the flap valve, and reducing impact sound when the valve element closes. This...
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JP2006097876 |
To prevent the pressure fluctuation (pressure pulsation) of oil in a hydraulic system in a system stop in a suspension device having a hydraulic height adjusting mechanism.A free piston 83 energized by a spring 86 is mounted in a back-pr...
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JP2006097901 |
To effectively reduce refrigerant flow noise in passing a gas-liquid two-phase refrigerant, and to secure reliability of a flow control valve for a long period by using a porous permeation material, in the flow control valve capable of i...
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JP2006090226 |
To provide a control valve of a cooling system capable of preventing the occurrence of cavitation, and capable of improving reliability of the temperature adjusting function of a refrigerant, by effectively using the refrigerant, or adju...
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JP2006090556 |
To provide a throttle valve for preventing disturbance such as intermittent vortices in a fluid inlet passageway.A valve 30 has the fluid inlet passageway 12 connected with a fluid outlet passageway 14 through an orifice, and a valve ele...
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JP3786742 |
To prevent an O-ring or a resin ring to be used from being damaged, and also to prevent a lever from being made into the lock state, in a single-lever tap for lightening the water passing operation of the lever and preventing water hamme...
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JP3787233 |
To provide a pressure control valve capable of improving a flow rate characteristic without using a siphon tube for a feed-back passage connecting the secondary side port of a passage to a feedback room. In order to allow the secondary s...
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JP3783883 |
To provide a valve capable of decreasing the speed at which a valve is closed by a mechanical means without using an electric means such as a stepping motor. A valve rod 6 penetrates a valve element 5, and the tip is extended to the vici...
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JP3783879 |
To prolong the time when pressure is increased from relief start pressure to set pressure and prevent a safety valve from being affected by changes of temperature. A safety valve is provided with a sleeve 1, a valve seat 2, and a poppet....
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JP2006077955 |
To reduce a fluid flowing sound in a valve device by obtaining a successful fluid flowing sound reduction effect without bringing increase in the number of necessary components, and without imposing restriction on the port position at a ...
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JP3782769 |
To prevent a valve body and a downstream pipe from vibrating effectively by suppressing unstable flow, shock wave and excess flow of steam and fostering valve seat attached flow by a skirt-shaped portion having an appropriate broadening ...
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JP3782888 |
To prevent noise from generating from a mixing part of hot water with cold water, in a mixing valve of a hot-water supply device, in which the flow rate of a hot water and the flow rate of cold water sent out toward a hot water supply pi...
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JP2006071186 |
To obtain effective swirling flow in the whole flow rate area without increasing the number of necessary components, and to reduce fluid flow noise in a valve element without restraining a port position on a valve device side.A valve che...
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JP2006063957 |
To provide a steam valve device ensuring and keeping stabilization of a steam flow around a valve element in an opening/closing process of the valve element.The steam valve device has the valve element 35 driven by a valve spindle 24 and...
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JP3777228 |
To boost the dynamic characteristic of relief smoothly from low pressure to high pressure by communicating a primary side passage, communicated with a main passage, with a spring chamber through a passage and a groove formed at a poppet ...
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JP3770487 |
To simplify a structure, reduce the number of parts and assembling man-hours, reduce manufacturing costs, and improve sharpness of the power steering, in a damper valve of a hydraulic power steering device of a vehicle. In this hydraulic...
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JP2006046403 |
To prevent pressure from lowering and suppress the generation of surge pressure in a reducing modular valve.A supply port 24 and a control port 25 are formed in a valve body 21 and communicate with pressure chambers 26 and 27. The pressu...
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JP2006046331 |
To increase a flow rate of steam by the same opening/closing stroke and improve flow characteristics, in a multi-hole bypass valve and a steam valve incorporating a valve element of the multi-hole bypass valve in a valve element of a mai...
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JP2006046404 |
To prevent pressure from lowering and suppress the generation of surge pressure in a reducing modular valve.A supply port 24 and a control port 25 are formed in a valve body 21 and communicate with pressure chambers 26 and 27. The pressu...
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JP2006038191 |
To provide a spool valve having high durability, while easily changing the reducing effect of noise and vibration.Orifice members 60A to 60D restrain noise and vibration caused by cavitation of a hydraulic fluid, and are installed in a s...
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JP3765740 |
To control cavitation trouble such as erosion by a means excluding charging. A contour edge part of a valve element 14 or a contour edge part of a valve seat 18 is formed on a streamline shape same surface expanding over whole length in ...
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JP2006029170 |
To suppress airflow noise without increasing ventilation resistance.A throttle valve changes an amount of air taken into an engine depending on tilt angles of a valve element 1 which is rotatably supported in an intake passage. An outer ...
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JP2006029573 |
To provide a check valve with a pressure relaxation structure, having reduced cost and size by reducing the number of parts for easy manufacture.A check valve element 15 is stored in a valve case 12, and a spring 17 is interposed between...
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JP2006029118 |
To provide compact silencer structure of pneumatic equipment with reduced number of parts.A valve element 42 is formed in a cylindrical body to open/close an exhaust port 10 of a brake valve 1 as pneumatic equipment. One end face in an a...
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JP2006022945 |
To provide a combination tap capable of surely reducing water flowing noise in the combination tap wherein flow rate and temperature of hot water/water are adjusted by operating a lever.In this combination tap A wherein a fixed plate 18 ...
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JP2006017294 |
To provide a faucet capable of reducing water flow sound certainly.The faucet is provided with a bellows 51 comprising an elastic material for tightly covering upper end opening of an outer case 24 between a valve mechanism 23 and an ope...
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JP3760002 |
To provide a cut-off structure which can soften water hammer. A cut-off structure has a cut-off valve 15 which advances and retreats in respect to a valve seat 20 around a discharge port 7 for discharging water or water mixture or an pri...
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JP2006009882 |
To promptly return a spool to a steady state during full-stroke operation of an operation lever without damaging a reducing function of hydraulic reaction force of the operation lever by action of a hydraulic chamber.To prevent the hydra...
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