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Patent Searching and Data


Matches 601 - 650 out of 1,855

Document Document Title
JP2008232290
To provide a needle valve capable of preventing generation of noise of high frequency of the audible wavelength band.The needle valve 1 comprises a valve casing 10 and a valve element 30. A valve port 24 having a valve port 12 is provide...  
JP2008215626
To provide a cylinder valve generating less noise while water flows therethrough.In this cylinder valve, a valve element so having two or more openings in the side surface as to correspond to the openings of a valve guide is installed in...  
JP2008208950
To provide a hot-cold mixed faucet capable of reducing noises to be generated outside a hot-cold water mixing valve unit.The hot-cold mixed faucet 1 is provided for changing the mixing ratio of supplied hot-cold water and adjusting a dis...  
JP2008202800
To provide a simple and inexpensive expansion valve vibration absorbing member for stabilizing the operation of high pressure refrigerant with a pressure fluctuation.The expansion valve vibration absorbing member 10 constrains a ball-sha...  
JP2008185077
To provide a fluid controller with improved vibration isolating property without affecting pressure control operation.Pressure of a fluid is controlled by a valve element 4 moving with respect to a valve seat 3 due to change of balance b...  
JP2008175401
To provide wear resistance and galling resistance during use.A fluid pressure reduction device comprises an outer member and an inner member movable to each other. The outer member has an inner perimeter surface, and the inner member has...  
JP2008175267
To prevent the generation of noise or vibration from the minute opening to the vicinity of the middle opening, and enable the improvement in the efficiency of a steam turbine by reducing the pressure drop at the full opening or its vicin...  
JP2008157306
To provide a solenoid valve of relatively simple structure capable of effectively restricting self-excited vibration.In a hydraulic control valve 101, an air block 130 is arranged so as to cover a continuous hole 127 of a plunger 122 fro...  
JP2008157325
To provide a valve device enabling to effectively suppress the self-exciting vibration of a valve element.The valve device comprises a casing 7 in which flow paths 3, 5, 19 are formed, a valve seat 9 and the valve element 11 for controll...  
JP2008138812
To provide a differential pressure valve with a damper device not affected by the fluctuation of the pressure of a secondary side fluid.In an expansion device 1 functioning as a differential pressure valve, a damper device isolated from ...  
JP2008128416
To provide a hydraulic circuit having increased degree of freedom in circuit design by simplifying a circuit to promote space saving and reduction in cost.The hydraulic circuit comprises a first valve body 2 including a ball chamber 7 co...  
JP2008121859
To provide a vacuum valve which can improve the durability of a bellows.The vacuum valve 1 comprises: a valve part 2 which makes a valve body 10 abut on a valve seat 9 which is arranged between a first port 7 and a second port 8, and sep...  
JP2008121721
To provide a solenoid valve having relatively simple construction and effectively suppressing self-exciting vibration.In a hydraulic control valve 101, a throttle passage 131 is restricted by an elastic body 130 arranged between a valve ...  
JP2008121736
To provide a motor driven valve having a plurality of valve functions for selectively opening/closing four gateways.The motor driven valve comprises a valve body 10 having a first passage part 31 for communicating the first gateway 41 wi...  
JP2008121784
To provide a fluid control valve using a valve element 26 having a shaft portion 30 and a flexible film portion 28 connected to the shaft portion 30 for partitioning a fluid flow path into an upstream side fluid chamber 22 and a downstre...  
JP2008115940
To reduce the number of part items by integrally forming a spring piece and a valve element.This check valve is constituted by rotatably incorporating the valve element 12 for opening and closing a fluid passage 7 into a housing 6. The v...  
JP2008095892
To provide a flow control valve, in which volume of a valve chamber can be increased with a simple structure without increasing size of a whole body, while inhibiting rise of manufacturing cost, and inhibiting generation of noise.The flo...  
JP2008057721
To prevent vibration of a pressure regulating valve in a low flow rate area.This pressure regulating valve has a control pressure chamber C and a pressure regulating chamber P partitioned by a diaphragm 15, a valve body 17 displacing in ...  
JP2008057652
To provide an orifice member wherein occurrence of turbulence is suppressed, and breakage and the like are prevented from occurring in the pipe line.The orifice member 1 is placed in the pipe line 2 wherein fluid is passed. In the orific...  
JP2008045678
To provide a spool valve reducible in hydrodynamic force and noise in the axial direction of a spool shaft in the spool valve provided with grooves for fine operation in a land.The spool valve having a flow regulating function comprises ...  
JP2008045746
To provide a pressure control valve wherein development of noise and vibration caused by cavitation is restrained by modification of the structure of a pilot poppet which closes/opens a flow path by seating/lifting to/from the seat of th...  
JP2008039175
To offer a water shut off valve with a water hammer prevention function to prevent generation of water hammer.A solid sphere 2 is located in the center section of a cylinder 2 having an inlet port 13 and an outlet port 14, and a valve se...  
JP2008019960
To provide a speed controller allowing reduction in weight and material cost and free setting of flow rate adjustment of a controlled flow.The speed controller comprises a body 2 having a first flow path 2a communicated with a first flui...  
JP2008020073
To prevent an excess flow using a simple mechanism for prevention of water hammer, and to perform setting and adjustment of valve element opening through a simple structure.An automatic valve has a partition for partitioning the inside o...  
JP2008002633
To provide a water faucet which a user feels to be dynamically beautiful and decent in use and feels to be comfortable in use.The water faucet comprises a valve device using a driving means for indirectly or directly driving a valve elem...  
JP2007162851
To provide a motor operated valve capable of effectively preventing flowing noise by selecting distribution of holes to be formed on its straightening vane for subdividing bubbles.A straightening member 100 for subdividing bubbles includ...  
JP2007162882
To provide an inexpensive check valve preventing a chattering phenomenon of a disc-like valve element quickly repeating valve opening and closing, and preventing valve closing delay.An inlet 4, a valve chamber 3, and an outlet 5 are form...  
JP2007147004
To provide a hot-cold water mixing valve device for straightening hot and cold water supplied to a discharge part of a hot-cold water mixing faucet with hot and cold supply water mixed without greatly reducing a flow rate while suppressi...  
JP3968196
To avoid cavitation bubbles in a valve chamber breaking and eliminating by enlarging a cross sectional area of at least an inlet port in the inlet port and an outlet port larger than a fluid passing effective area in the valve chamber in...  
JP3968181
To prevent the generation of the turbulent flow extending to the first stage of a turbine from a butterfly valve by using the butterfly valve as a control valve, which is provided near a turbine. A combination valve is provided with a co...  
JP2007140947
To provide a pressure reducing valve which stably makes control even when the opening of a main valve element is small in a main valve, and is reduced in size.The pressure reducing valve 1 comprises: the main valve 10 having the piston m...  
JP3963600
To provide a damper valve for a hydraulic power steering device of a vehicle capable of establishing an improved damping performance, eliminating the resisting or sticking feeling in the steering operation, particularly in the low-speed ...  
JP3957503
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 s...  
JP3952598
To reduce vibratory noise of a valve disc while ensuring superheat controllability of refrigerant at the outlet of an evaporator. A fitting hole 63 communicates with the way of a throttling passage 45 passing a working rod 46 and a refri...  
JP2007113753
To provide a check valve device having the high degree of freedom in size selection, and a water supply facility equipped with such a check valve device.The check valve device G1 prevents back flow of hot and cold water being seated on a...  
JP2007113599
To provide a diffuser for a fluid control valve capable of more surely suppressing or preventing generation of cavity and suppressing decrease of maximum flow rate and the fluid control valve.The diffuser 31 for decreasing flowing speed ...  
JP2007113773
To solve a problem of causing water hammer if quickly closing a gate valve installed in a pipeline such as a waterway.A gear comprising a gear 1 and a gear 2 is provided between a valve opening/closing handle and a valve, and a gear rati...  
JP3950283
To prevent the self-excited vibration of a valve element caused by the flow in a clearance between the valve element and a cage in a flow govering valve for dividing the fluid flowing in the clearance into the main flow and the by-pass f...  
JP2007107623
To reduce refrigerant passing sound in a motor operated valve controlling a flow rate of refrigerant.A perforated sheet member (a punching plate) 100 composing a restrictor means S1 has a cylinder part 120, and a bottom 130 provided with...  
JP3947392
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...  
JP2007100823
To provide a valve device superior in a water hammer preventing property and productivity.A cover body 15 is provided on the counter valve seat side of a base body 7 with a water storage chamber communication hole 14 communicating with a...  
JP3940855
To prevent a liquid drip caused by vibration. A suck back valve 20 has a first buffer mechanism 30 absorbing kinetic energy of a first diaphragm 56 in the case that it is seated in a seating part 59 to close a fluid passage 38 and a seco...  
JP2007085543
To provide a system for giving additional controllability of a butterfly valve.A control valve assembly utilizes the butterfly valve having a valve body and a valve disc movable between a seated position and an open position. The control...  
JP3928858
To provide a method for fixing a solenoid feed water valve preventing water stop failure by restraining vibration in a water stop and having good water drainability. This solenoid feed water valve comprises a primary pressure chamber 23 ...  
JP3927145
To provide a pilot solenoid valve easy to manufacture, small and inexpensive with a valve element having a gentle speed to reduce pressure rise and seating impact such as water hammer, restrict a valve opening time and control the pressu...  
JP3923155
To generate a slow closing motion of a valve element certainly. A spring 20 to energize in the separating direction is installed between the first drain valve 18 and the second drain valve 19, and a first selector valve 16 is installed b...  
JP3920019
To provide a damper device in the oil-hydraulic circuit with a small device absorbing oil pressure vibration with high accuracy and with enough durability. A dumper member 11 consisting of an elastic material is stored in the room 12 of ...  
JP2007040330
To reduce refrigerant passing noise in an electric valve controlling a flow rate of a refrigerant.A valve main body 10 of this electric valve 1 has an orifice 12, a valve chest 14 and a refrigerant passage 16. A motor unit 50 rotates an ...  
JP2007040326
To protect a uniaxial pressure regulator for tap water and a solenoid valve installed at the inlet of a device such as an ice making machine against damage by a high water pressure in a water hammering.The valve seat assembly 7 of the un...  
JP3908817
To provide an emergency shutoff valve which allows easy checking of the number of throttle holes from the outside at the time of inspecting the products completed and permits instantly whether the rate of valve closing flow meets the spe...  

Matches 601 - 650 out of 1,855