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Patent Searching and Data


Matches 601 - 650 out of 1,839

Document Document Title
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...  
JP2007016977
To prevent water hammer in valve closing in a pilot type two-port valve for opening/closing a liquid flow passage.A valve drive mechanism part 3 for driving a valve member 25 of a liquid passage 23 has a piston 32 connected to the valve ...  
JP2006335106
To miniaturize a radial dimension of a hydraulic cylinder in a power steering device of a vehicle.The power steering device is equipped with the hydraulic cylinder 4 partitioned into first and second pressure chambers 4a, 4b, a rotary va...  
JP2006336927
To exercise a predetermined refrigerating capacity by promptly opening an expansion valve even by increasing an air blowing amount during low load operation in a refrigerating cycle composed such that existence/nonexistence of operation ...  
JP2006331850
To provide a reaction gas supply device enhancing the starting capability of a fuel cell.The reaction gas supply device of the fuel cell supplying the reaction gas set to prescribed pressure to the fuel cell is equipped with a primary si...  
JP2006316949
To provide a zero adjustment arm used in a positioner capable of effectively preventing harmful effects due to high frequency vibration.The zero adjustment arm is used in the positioner provided with a pilot valve 21 supplying air to a d...  
JP2006308274
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...  
JP3872912
To prevent the water pressure of a conduit down stream of a non-return device from becoming high-pressure when the water supply is stopped. A non-return device 17 is disposed in a water supply passage of a combustion equipment. This non-...  
JP3872824
PURPOSE: To reduce refrigerant fluidizing sound generated from a dehumidifying throttle at the time of dehumidifying while preventing the decrease of the performance in cooling or heating operation in an air conditioner in which the dehu...  
JP2006284088
To provide an expansion valve whose vibration due to a pressure change of a two-gas-liquid-phase refrigerant flow is suppressed without impairing the reliability and which is used to reduce the noises of the expansion valve or others res...  
JP3866327
To prevent noises of a poppet valve due to a fluid flow through a valving interface from generating by keeping the static pressure higher than the vapor pressure of liquid flowing through the valving interface of the poppet valve. When t...  
JP2006275452
To provide an expansion valve to be incorporated in a refrigeration cycle for securing the reliability of the refrigerating cycle while reducing noises and vibration to be generated when reducing the pressure of gas-liquid two phase refr...  
JP3861253
To surely prevent the occurrence of a water hammer phenomenon and also to adjust secondary side pressure. Fire extinguishing equipment is provided with a valve primary body 5 opening/closing the communicating port 4 of a valve main body ...  
JP2006266402
To provide a relief valve capable of preventing reduction of relief performance due to vibration by suppressing vibration of a ball support and preventing occurrence of abnormal sound even when using this relief valve in a high pressure ...  
JP2006266663
To provide an expansion valve and an air conditioner having the expansion valve capable of reducing noise made in a throttle passage.The expansion valve 1 comprises an expansion valve body 2 and a valve element 3, wherein a fluid throttl...  
JP3859035
To prevent occurrence of fretting in a return passage to a pump, in a flow controlling device for a pump rotational speed sensing type power steering. A fretting preventive structure for a return passage 5 of a pump 14 in a flow controll...  
JP3859273
To provide a pressure reducing valve to prevent the generation of noise due to a gas flow. A pressure reducing valve comprises a valve body 20; a valve chamber 38 specified by the valve body 20; a feed flow passage to feed gas to the val...  

Matches 601 - 650 out of 1,839