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JP2004058987 |
To provide a damping delivery valve of a steering device for improving a coupling structure of a housing of the damping delivery valve with a valve body thereof so as to facilitate the manufacture and the assembly.A coupling structure of...
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JP2004060730 |
To provide a valve capable of completely restraining generation of cavitation by simplifying its structure and facilitating its manufacture.In a butterfly valve, for example, having a valve casing 1, a valve element 2, and a valve stem 3...
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JP2004044807 |
To provide a distribution valve for controlling cavitation and/or oozing out and/or feeding of liquid when closed.The distribution valve 10 is provided with a fluid transportation housing 16; a valve seat 40; a diaphragm/poppet assembly ...
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JP2004044631 |
To prevent decline of silencing effect and to facilitate inspections and repairs.A low-noise flow regulating valve comprises an inner cylinder 8 housed in a valve box 1, and a plurality of silencers 15a to 15d so piled to have silencer b...
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JP2004036705 |
To provide a butterfly valve capable of effectively preventing cavitation by surely filling air into a pressure reduced area.This butterfly valve 1 comprises a tubular valve box 2 having a hollow part functioning as a flow passage 5 and ...
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JP2004028195 |
To provide a steam valve preventing a damage of a strainer due to collision of foreign matter, suppressing a pressure loss in the steam valve, and reducing the running cost of a steam plant in the steam valve provided with the strainer f...
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JP2004028488 |
To reduce cooling medium passing noise in a heating mode, in a valve gear of a refrigeration cycle for a vehicle for switching between the heating mode where gas cooling medium on the compression discharge side is introduced directly to ...
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JP3514684 |
To perfectly prevent the water hammering action. A water hammering preventing device 1 is formed of an outer case 2, which is provided with flow passages 8 for an inlet 6 and an outlet 7 on the same axis and provided with a drain port 9 ...
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JP2004019756 |
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 projec...
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JP3512979 |
To smooth flow downstream of a valve element so as to prevent noise caused by the collision of jet and noise caused by the generation of a turbulent vortex by providing the bottom face part of the valve element with a flat face, and prov...
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JP2004011909 |
To provide a check valve which can remarkably reduce the generation of vibration and noise in a form that a check valve has a casing provided with a flow-in opening and a flow-out opening, an inner chamber is formed in the casing, a valv...
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JP3510358 |
PURPOSE: To prevent a severe water hammer phenomenon when water supply pressure rises and restrict the propagation of impulse waves, if caused, to a city water pipe by storing a pressure reducing valve mechanism in a water discharge pipe...
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JP3505811 |
PURPOSE: To minimize the fluctuation of the hot water flow rate to a heat exchanger for heating due to the fluctuation of the hot water feeding pressure. CONSTITUTION: A pressure responsive valve 6 is provided in a bypass circuit 5 of a ...
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JP3500589 |
PURPOSE: To easily carry out a construction work and a maintenance work by internally providing a faucet with a chamber as part of a water passage or a chamber communicated to the water passage, and forming a water hammer absorber mounti...
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JP2003336764 |
To provide a steering damper valve to prevent the size of a body 1 from enlarging.A plate 26, a leaf spring member and a seat member 22 correlatively constitute a first check valve part. The first check valve part A permits only circulat...
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JP2003329169 |
To provide a butterfly valve having an excellent cavitation suppressive function.A first disk tail part 6 is provided on a circumferential edge part on a secondary side of one side piece 3b of a valve element 3 turned to a primary side w...
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JP2003327144 |
To enhance sealability while enabling easy work for a sheet face of a partitioning member contacting with a valve plate of a damper valve.In the second valve system 54 of the damper valve 50, a penetrated flow passage 56 is provided in t...
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JP2003329149 |
To provide a butterfly valve in which flow of fluid is improved when a valve body is opened to a small opening.A valve body 6 comprises a disc-like central body part 9 and a circumferential plate part 10 formed on the periphery of the ce...
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JP3490640 |
To provide a throttle device with a large throttle amount and a low noise level. In the throttle device where a valve rod 1 provided in a valve chamber 8 communicating with inlet piping 10 is brought into contact with or separated from a...
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JP2003314709 |
To provide a valve structure coherein damage by cavitation is effectively restraining without varying an inter surface dimension of a butterfly valve and thereby reduction of noise and extension of the life of a pipe are achieved.An adap...
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JP2003301954 |
To solve the problem of a current lift type check valve where a face- to-face distance L of a valve box is long because a lower guide is arranged under a valve seat, the whole of a valve device is large as to the lift type check valve wi...
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JP2003294339 |
To solve problems where a gas-liquid two-phase refrigerant is not continuously and effectively supplied to an orifice part, and a refrigerant flowing sound becomes large.For solving the problems, this orifice device has a valve body for ...
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JP3482327 |
To absorb a shock of a water hammer phenomenon. A device comprises a piston 7 able to close a flow path 6 in a stop cock main body 5, coil spring 8 pressing the piston 7 in a valve opening direction, and a pressure transmitting path 9 tr...
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JP2003287149 |
To provide a swing check valve capable of certainly preventing the occurrence of a chattering phenomenon even in the case where a small flow rate and small pulsation compete with each other.A valve body 2 is constituted of a main body pa...
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JP2003278925 |
To prevent hunting of a slide valve.A slide valve control and operation unit 12 of an arithmetic unit 11 obtains the movement command quantity of the slide valve 21. A hunting preventive unit 13 monitors the hunting of the slide valve ba...
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JP3475315 |
To provide a single lever type water faucet which can reduce the height of the whole single lever type water faucet, does not cause a backlash when it is rotated in the direction of temperature ad justment, and has good operability. In a...
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JP2003269697 |
To control the generation of heat due to adiabatic compression occurring between a high pressure gas container and equipment connected thereto, when a stop valve for the high pressure gas container is opened at high speed.The stop valve ...
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JP2003269520 |
To provide a shock absorber for a valve such as a check valve that prevents a water hammer phenomenon when a check valve installed in a pipeline of every type of plant or the like is closed, and enables quick opening and closing of a val...
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JP2003265350 |
To solve the problem that a water hammer is high since a pressure receiver is pressed, rapidly abutted to a valve seat and closed by a secondary side pressure caused by the closing action of a second opening/closing valve.In the water di...
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JP2003262282 |
To restrain a noise generated by a pressure regulating valve with a simple mechanism.A pressure regulating valve is composed of a seat valve with an outflow pathway that liquid passes at valve opening, and a seat valve that abuts on the ...
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JP3472900 |
To reduce the pressure of even an extra-high pressure fluid of specific pressure or more by providing a pressure loss part for limiting fluid speed, between an inlet port and a needle valve. A ball type check valve 1 constituting a press...
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JP3470390 |
PURPOSE: To prevent the production of the abnormal noise, secure the flow rate even when a constant flow rate valve is plastically deformed, and prevent the reduction of the area of a flow passage to a water flowing groove by providing a...
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JP2003254201 |
To improve an anti-burst property of a pressure controller without causing cost up.A housing 12 is formed by joining a case 2 and a cover 3 with caulking. In the housing 12, a support body 16 with an opening 18 communicating with a fuel ...
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JP2003254469 |
To provide a fluid reservoir facilitating manufacturing and assembling and low in production cost, and also to provide a valve combination structure therefore.This fluid reservoir includes a cap-shaped side wall 40 attached to an attenua...
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JP2003254450 |
To provide a butterfly valve with a flooding function for passing a constant flow of water at small opening, and also to reduce pressure loss at full valve element opening of the valve.Two valve element pieces 9a and 9b of a valve elemen...
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JP2003247659 |
To provide a check valve and a beverage producing device without generating noise caused by cavitation with respect to a check valve used for a liquid channel of a beverage producing device such as a cup type vending machine and a bevera...
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JP2003227579 |
To provide a valve device which conducts valve opening operation without abnormally increasing the pressure in a valve casing and requiring large operation force.A marking for indicating a rotating position of a handle 12 when a valve el...
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JP2003222255 |
To provide a pilot poppet type pressure control valve which maintains pressure in a high-pressure chamber constant by discharging a part of a fluid when the pressure of the fluid in the high-pressure chamber exceeds a standard value.When...
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JP3456214 |
PURPOSE: To keep off any valve vibration in a pilot pressure control valve so as to perform stable flow control by means of a simple structural improvement. CONSTITUTION: This valve device is provided with two pilot pressure control valv...
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JP3457595 |
To prevent the hunting of a poppet valve. A poppet valve 42 of a pilot flow amplifying type is slidably fitted to a valve housing 40, and a damping pressure chamber 61 with the volume varied by the displacement of the poppet valve 42 is ...
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JP2003207071 |
To provide a control valve which is opened with weak valve driving force when the control valve is not equipped with any auxiliary valve and is to be opened.The main valve 21 is provided with a pressure regulator 23 consisting of a balan...
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JP3452474 |
To prevent swiveling of a child valve, and make generation difficult of an abnormal sound. A balance type relief valve 1 has a parent valve 4 opening/closing a passage of high/low pressure side, back pressure chamber 5 introducing a back...
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JP2003202084 |
To provide a diaphragm type cut-off valve which prevents water hammer at the time of closing the valve and is applicable to a flushing valve device of a cistern.In the diaphragm type cut-off valve with a rubber diaphragm valve element 16...
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JP2003191852 |
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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JP2003194239 |
To provide a butterfly valve capable of suppressing noises and vibrations by dispersing the cavitation and suppressing its growth to lessen and achieving a prolonged lifetime by preventing the valve body base material and/or valve box ba...
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JP2003185034 |
To surely prevent cavitation and hunching by coping with and any operating conditions and to simply perform adjusting work in a large and small two-type automatic pressure regulating valve.A large diameter valve element 5 contacts and se...
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JP2003172463 |
To provide a control valve which has excellent control characteristic and cavitation characteristic and reliably removes foreign matters and eliminates any clogging by a simple operation without any complicated work even when clogging oc...
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JP2003166659 |
To provide a relief valve which generates less vibration when feeding liquid and provides smooth and stable opening/closing operation thereof by solving a problem with the conventional relief valve supported by a diaphragm in which press...
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JP3440074 |
To provide a water flow control device of a simple structure in which an operation can be easily conducted, and in which a water stopping effect is secured. A water flow path parted by a partition plate is provided in a seat body 1, and ...
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JP2003161381 |
To prevent a valve from biting at a valve seat of a seated part in an opening/closing valve, and to suppress a drastic increase of a flow rate of a fluid flowing in an opening at the primary stage of an increase in area of the opening fo...
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