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Patent Searching and Data


Matches 601 - 650 out of 5,222

Document Document Title
JP2012179165A
To suppress a water hummer at the time of a start of a large-capacity pump by a simple, low-cost and high-reliability structure.This fluid conduit opening speed restriction valve 25 includes: a valve housing 27 connected to a fluid condu...  
JP2012180935A
To provide a check valve of small type including a pressure relieving function, easily manufacturable at a low cost.The check valve 100 having a pressure relieving function includes a valve element 30, which is installed slidably on a va...  
JP5027220B2  
JP5029474B2  
JP2012177470A
To provide a throttle valve device having a simple structure, can be manufactured at low cost, and having high silentness.The throttle valve device (1) includes a valve seat member (10) formed with a valve sheet part (10a) and a valve bo...  
JP2012172684A
To provide a sleeve valve device which is operable even at a place where any electric power is unavailable, or any person for performing the moving operation of a valve element is no present.The sleeve valve device 1 includes a porous sl...  
JP2012172717A
To prevent radial vibrations of a valve device, which opens and closes a valve part and adjusts opening by bringing the valve body driven by a plunger into contact with and away from a valve seat, with a simple structure, and to reduce o...  
JP2012167800A
To provide a check valve capable of preventing the damage of a spring and generating noise by preventing the collision of the spring against a valve body or a plug.An inlet 4, a valve chamber 3, an outlet 5, and the second outlet 6 are c...  
JP5008238B2  
JP4994332B2  
JP2012145123A
To increase the life of a valve box seal ring while reducing operation torque and holding a water shutoff property when the valve box seal ring is pressed against disk tail parts.A butterfly valve having a water filling function includes...  
JP4984096B2  
JP4979197B2  
JP4972658B2  
JP4974997B2  
JP2012127505A
To provide a movable throttle valve capable of preventing an annular gap from being clogged with dusts in operation fluid while being simple construction.The movable throttle valve 5 used in a fluid pressure circuit 10 has a holding cond...  
JP4963478B2  
JP4950265B2  
JP4954500B2  
JP2012107698A
To provide a structure for restraining noise and vibration of an inside component caused by external impact, in a gas governor valve having a primary pressure chamber and a secondary pressure chamber.This gas governor includes a casing 1...  
JP4948488B2  
JP2012102779A
To provide a check valve configured to allow an orifice for controlling flow rate (pressure) of fluid to be easily added or replaced.In the check valve, a valve element 50 having a rubber-made valve seat 80 is slidably arranged in a valv...  
JP4935678B2  
JP2012092964A
To provide a screen nozzle that can change flow property.A variable flow control nozzle 50 has a head 52, a tube 54, and a valve 56. The head is disposed adjacent an opening 22 and has a screen 60 for passage of fluid flow into and out o...  
JP4932812B2  
JP2012087906A
To provide a shut-off valve capable of preventing a water hammer, and capable of shortening time required for closing the valve.This shut-off valve includes a valve element 11 normally opening for opening-closing a communicating port 9 o...  
JP2012087916A
To provide a cylinder valve usable in common for any of a faucet of a form of discharging water by rotating a handle leftward and a faucet of a form of discharging the water by rotating the handle rightward, and capable of excellently pr...  
JP4925782B2  
JP4925638B2  
JP2012082896A
To reduce the noise by stabilizing a flow of a refrigerant with a valve port in a motor-operated valve for controlling a flow rate of the refrigerant by opening/closing the valve port with a needle valve.A valve seat part 1 is formed wit...  
JP2012082932A
To provide a butterfly valve that reduces unbalance of pressure in both flow passages on an orifice side and a nozzle side even immediately after the start of opening a valve, while preventing large resistance in an orifice when valve op...  
JP2012082936A
To provide a butterfly valve with water filling function for supplying fluid during water filling to a pipe.The butterfly valve with water filling function includes a valve seal part 20 formed on the inner periphery of a valve box 1 and ...  
JP4922775B2  
JP4918346B2  
JP2012067964A
To reduce noise to be generated when a refrigerant passes through a refrigerant inlet in a liquid single phase and the refrigerant passes through a refrigerant outlet in the liquid single phase, in an expansion valve disposed in a refrig...  
JP2012067791A
To relieve a water hammer phenomenon by stably controlling a flow rate.An expansion unit EU having an operation chamber 33 communicating with a back pressure chamber 27 of a main valve 20, is interposed between a valve casing 16 having t...  
JP2012052617A
To provide a check valve for mitigating an ill effect of water hammer.In the check valve 100, when the inflow of fluid is stopped, a valve energizing mechanism 140 energizes an inflow shutoff valve 120 to immediately shut off an inflow p...  
JP2012052636A
To prevent the occurrence of noises while securing high opening/closing responsiveness of a check valve.A valve seat 63 and a stopper 65 of the check valve 48 are formed of resin, and a check ball 64 is formed of carbon or resin and so t...  
JP4896134B2  
JP4896675B2  
JP4896033B2  
JP2012047213A
To reduce noise by restraining vibration or the like of a secondary joint pipe, by stabilizing a flow of a refrigerant in a valve port, in a motor-operated valve for controlling a flow rate of the refrigerant by opening-closing the valve...  
JP2012041980A
To provide a direct mounting type solenoid valve that suppresses noise due to vibration and resonance of an output port.The direct mounting type solenoid valve has a solenoid vale body, including a housing 11 for forming a passage 11a an...  
JP2012042056A
To provide an intermediate valve for operation air capable of reliably preventing the occurrence of a water hammer phenomenon by controlling the operation air of a single-acting air-operated valve.The intermediate valve for operation air...  
JP4879517B2  
JP2012031923A
To provide a gate valve device that can effectively prevent the occurrence of hole tone to produce less noise.A vortex flow generation ring 17 has a plurality of protrusions 22 at a predetermined interval in the circumferential direction...  
JP2012032248A
To suppress vibration of an SRV nozzle by attenuating the energy of cavity tone.A main steam relief safety valve nozzle of a boiling-water nuclear power plant comprises: a constricted part where the cross-sectional area of a flow passage...  
JP2012021633A
To eliminate a hunting phenomenon when a relief flow passage is closed and eliminate the hunting phenomenon without requiring large modification to an existing unload valve.The unload valve 10 includes: a first pilot flow passage 22a; a ...  
JP2012017799A
To provide a relief valve capable of feeding oil to an engine even when a control valve for back pressure is out of order.The relief valve has the valve body 2, the tubular sleeve 4 having a flowing in port 7 and a discharging port 8, th...  
JP2012017835A
To suppress a pressure pulsation in at least one pipe of the pipes connected to a fluid upstream side and downstream side, and an operation sound audible outside, in a fluid injection device.A hydrogen gas injection device 50 includes: a...  

Matches 601 - 650 out of 5,222