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Patent Searching and Data


Matches 851 - 900 out of 1,861

Document Document Title
JP3505811B2
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 ...  
JP3500589B2
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...  
JP2003336764A
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...  
JP2003329169A
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...  
JP2003327144A
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...  
JP2003329149A
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...  
JP3490640B2
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...  
JP2003314709A
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...  
JP2003301954A
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...  
JP2003294339A
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 ...  
JP3482327B2
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...  
JP2003287149A
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...  
JP2003278925A
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...  
JP3475315B2
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...  
JP2003269697A
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 ...  
JP2003269520A
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...  
JP2003265350A
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...  
JP2003262282A
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 ...  
JP3472900B2
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...  
JP3470390B2
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...  
JP2003254201A
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 ...  
JP2003254469A
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...  
JP2003254450A
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...  
JP2003247659A
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...  
JP2003227579A
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...  
JP2003222255A
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...  
JP3456214B2
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...  
JP3457595B2
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 ...  
JP2003207071A
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...  
JP3452474B2
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...  
JP2003202084A
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...  
JP2003191852A
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 ...  
JP2003194239A
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...  
JP2003185034A
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...  
JP2003172463A
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...  
JP2003166659A
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...  
JP3440074B2
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 ...  
JP2003161381A
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...  
JP2003159347A
To adjust an opening speed and a closing speed of an open valve separately not to cause a water-hammer action.The open valve 1C of a type which opens a valve body 9 by pressuring a cylinder room 12 has piping 14 connected to the cylinder...  
JP2003156269A
To reduce the flow sounds of a cooling medium in a region where a solenoid valve has a small opening.The solenoid valve has a valve seat 61 and its rod valve element 4 is energized toward the valve seat by electromagnetic force. The valv...  
JP2003148263A
To provide a fuel pressure control valve capable of effectively reducing the generation of noise with a simple structure.This fuel pressure control valve contains a housing 10, a fuel storage chamber 16 containing a valve seat member 18,...  
JP2003139428A
To provide a Stirling engine that reduces energy loss and has a high refrigerating capacity from a low amplitude to a high amplitude without deteriorating a piston spring by varying a gas quantity returned to a compression chamber from o...  
JP2003120829A
To provide a butterfly valve with a constant-flow flooding function capable of providing the water flow of a constant flow rate with a small opening.This butterfly valve is composed of a valve casing sealing ring 14 annularly mounted alo...  
JP2003120536A
To provide a valve device of a hermetic compressor with improved structure to freely adjust the valve height by the displacement and the refrigerant discharge pressure.This valve device of the hermetic compressor comprises a valve plate ...  
JP2003106474A
To provide an open valve capable of adjusting either one of an opening speed and a closing speed of a valve element irrelevant to the other, for example, capable of adjusting the opening speed alone without lowering the closing speed of ...  
JP3414005B2
PURPOSE: To obtain a preventing device of water hammer phenomenon caused by on-off actions of a solenoid valve mounted on a bathtub hot-water automatic supply pipe of a hot-water supply apparatus where a general purpose hot-water supply ...  
JP2003097732A
To provide a butterfly valve capable of easily controlling a flow rate and pressure by making flow with a quantity of fluid corresponding to an opening angle of a valve element of a butterfly valve as closely as possible fully preventing...  
JP2003097754A
To provide a motor operated valve capable of effectively preventing ragged noises by reducing to the utmost fluid sounds generated upon a fluid passing through an orifice formed between a valve element and an outflow hole through an infl...  
JP2003090458A
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 a...  
JP3410804B2
PURPOSE: To prevent the occurrence of a seating sound at the time of closing a valve by fitting a throttle mechanism for restricting an amount of fluid leaking from a cylinder after the closure of a fluid feed port therefor with a contro...  

Matches 851 - 900 out of 1,861