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Patent Searching and Data


Matches 851 - 900 out of 1,855

Document Document Title
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 ...  
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...  
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...  
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 ...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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 ...  
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...  
JP2003159347
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...  
JP2003156269
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...  
JP2003148263
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,...  
JP2003139428
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...  
JP2003120829
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...  
JP2003120536
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 ...  
JP2003106474
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 ...  
JP3414005
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 ...  
JP2003097732
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...  
JP2003097754
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...  
JP2003090458
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...  
JP3410804
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...  
JP3411599
PURPOSE: To dispense with a coil spring for energizing a moving member, eliminate a resonance phenomenon of a spring and abrasion of a sliding surface, and enhance reliability by providing a permanent magnet at the end of the moving memb...  
JP2003083641
To obtain a restricting device and a flow control device which enable setting of a different amount of restriction for a refrigerant flow in normal and reverse directions and to obtain air conditioning equipment which can conduct heating...  
JP3407565
To reduce the fluid force by making the flowing-out angle of a fluid which flows from a valve chest to a flowing-out passage in a large size. This spool valve is composed to communicate a flowing-in passage 3 and a flowing-out passage 4 ...  
JP2003074725
To suppress whistling sound caused by the vibration of a vane pump in a relief valve in a hydraulic system for a vehicle.This relief valve is provided with a valve housing with a valve hole 21a bored along an axis; a valve seat member fi...  
JP2003074719
To provide a valve element for a butterfly valve that can reduce unbalance torque at the medium opening of the valve without impairing the advantage of a swirling flow inducing means (a plate-like projecting part).This valve element for ...  
JP2003072670
To provide an improved electrical control unit of a motor-driven derailleur for a bicycle superior in ergonomics, simple in structure, and more functional in comparison with a device by prior art.The electrical control unit is composed o...  
JP3406357
PURPOSE: To provide a cage type low noise valve where an orifice at each stage uniformly bears a reduced pressure load so as to realize effective attenuation and enhance a noise reducing function. CONSTITUTION: In a cage type low noise v...  
JP2003067056
To prevent trouble such as noise due to a fine opening state.A sheet structure is characterized by that the valve seat surface angle of a pressure reducing valve 2 is set to about 75° and a seating part 9 of a valve body 6 in contact wi...  
JP2003065634
To reduce a vibratory foreign sound of a valve element without additionally providing parts anew.First and second hole sections 40a, 40b are formed such that the direction A of a central line of the second hole section 40a is inclined wi...  
JP3401875
PURPOSE: To provide a check valve which is incorporated in a two way valve, does not cause fine vibration within a specified flow range, and prevent noise due to vibration by simple structure. CONSTITUTION: In a check valve 80, when a fl...  
JP2003049967
To provide a biting preventing slide bearing for a slow closing check valve wherein a shaft of the slow closing valve and the bearing is not fixed even when foreign matters come in, and the work for removing the foreign matters is not re...  
JP2003042337
To securely restrict a collision of a spool valve with a valve body in a fluid pressure control device provided with the spool valve. The spool valve 4 is arranged in a cylinder of the valve body of the fluid pressure control device. A c...  
JP3395731
To eliminate the generation of noise when opening a valve. This check valve is provided with a valve body 1 having a valve seat part 1a, a valve element 2 arranged inside of the valve body 1 freely to be slid and having a valve part 2a f...  
JP3393291
To make a valve smooth operation, and prevent generation of chattering. In a safety valve providing a valve seat 5 in an outlet of a pressure introducing hole 4 of a main unit 1, connecting a spring case 3 to the main unit 1, insert moun...  

Matches 851 - 900 out of 1,855