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Patent Searching and Data


Matches 401 - 450 out of 1,839

Document Document Title
JP2013196053
To reduce a noise of a control valve.A control valve 1 for controlling a pressure of a fluid passing therethrough, includes a valve seat 20 having a seat part 22 through which the fluid passes, a poppet valve 60 which is inserted into th...  
JP2013190074
To provide a diaphragm valve capable of preventing a water hummer generated when closing a flow channel.This diaphragm valve includes a body pipe part (2), the first port (P1) projected along a direction orthogonal to an axial direction ...  
JP2013186762
To provide an air tool and an air compressor for reducing generation of a sound due to the vibration of the spring of a pressure-reducing valve.Disclosed is a pressure-reducing valve including: a housing having an air passage for communi...  
JP2013174257
To prevent the generation of uncomfortable operation noise generated by the self-exciting vibration of a moving member at an abrupt change of pressure, in an electromagnetic valve which controls a pressure difference between fluid pressu...  
JP2013174324
To efficiently reduce noise from a regulating valve for reducing a pressure of gas, and regulating a flow rate of the gas.There is provided a silencing and pressure-reducing device in which a cylindrical diffuser 2 having a large number ...  
JP2013170599
To enable vibration of a valve element to be properly restrained with a simple constitution, in an opening-closing valve.An opening-closing valve includes a valve element 22 forming a hollow shape and capable of opening-closing a communi...  
JP2013170633
To provide a check valve structure capable of surely absorbing water hammer, vibrations and pulsation, etc.A flexible expansion/contraction vibration-proof joint 2 having flange parts 1 at both ends in an axial direction and an expansion...  
JP2013155835
To prevent hunting of a valve member in a check valve.A valve member constituted of a valve part 43 and a piston part 44, is reciprocatably stored in a piston storage cylinder part 414 of a case 41, a damper chamber 418 being a substanti...  
JP2013155798
To provide a stop valve having a slow return function, with simple structure and superior productivity.A valve case 13 includes a first port 11, a second port 12, and a valve unit for closing communication between the fist and second por...  
JP2013148164
To provide a solenoid valve which can suppress operation sound in association with ON-OFF.A PCV 4 (one example of solenoid valve) forms a damper chamber α within a space filled by fuel in such a manner that a damper concave section 10 a...  
JP2013142506
To provide a simple and low-cost vibrationproof spring suitable for preventing the vibration of a working part of an expansion valve.An expansion valve 1 of a certain embodiment includes a first passage 13 that penetrates a body 2 and ha...  
JP2013139882
To provide a simplly-structured throttle valve apparatus which can be manufactured at low cost and has high quietness performance.A throttle valve apparatus (1) includes: a valve seat member (10) having a valve seat face (10a); and a val...  
JP2013133914
To provide a control valve capable of being correctly and smoothly operated without any abnormal noise or general noise caused by vibration of a valve element when the control valve is opened.In a control valve, a valve element 36 is gui...  
JP2013133842
To provide a swing type check valve capable of achieving both improvement in check valve function and prevention of chattering.A swing type check valve 1 includes a valve case 2 in which a flow path 3 extending from an inlet part 3a to a...  
JP2013119867
To prevent an increase in a pressure loss at a large opening degree while effectively suppressing cavitation.A butterfly valve includes, as basic constituent members, a cylindrical valve casing 1 functioning as a part of a flow passage, ...  
JP2013104439
To improve quietness by reducing pulsation of a refrigerant with a simple structure, in a dehumidification valve of an air conditioner.A plurality of throttle grooves 21 are formed in a valve seat portion 2b. During a dehumidification op...  
JP2013096496
To facilitate assembly and to effectively suppress vibration of a valve element while simplifying a structure, in a check valve including a valve housing in which a valve seat is provided while opening an inlet-side flow passage, the val...  
JP2013096497
To provide a check valve that can suppress vibration of a valve element while facilitating assembling and making the size smaller, the check valve including: a valve housing having a valve chamber formed inside to be always led to an out...  
JP2013087795
To provide a motor-operated valve which prevents chattering immediately after a main valve element is opened, shortens a control time for controlling the opening/closing of a main valve, and controls a flow rate finely.The motor-operated...  
JP2013083285
To provide a butterfly valve, in which cavitation can be effectively suppressed on the orifice side up to an opening of a medium degree, and which is easily manufactured.A semi-disc-like sub-valve element 5 having a large number of flow ...  
JP2013076443
To provide a flow path opening/closing device that can prevent water-stop failure of the flow path opening/closing device by preventing entry of a foreign substance into a constant flow rate valve, while an instantaneous flow rate of wat...  
JP2013072531
To provide a valve device that includes a valve support for supporting a valve element of opening and closing an orifice, and in which pressure loss of a refrigerant is reduced and noise generated when a fluid flows a periphery of the va...  
JP2013068368
To provide a compact valve device by reducing the dimension in the valve opening/closing direction, of a spring vibration isolator for preventing vibration of a valve element.In a valve body 30, a valve chest 35 and an orifice 32a are fo...  
JP2013032846
To provide a spool valve with reduced cavitation damage.The spool valve 10 includes a valve spool 22 having a circumferential-shaped control edge. The spool valve further includes a means 50 for applying an intermittently or continuously...  
JP2013029161
To provide a joint and a valve device having the same, for restricting a flow rate of fluid when the fluid flows in the inverse direction, though the flow rate of the fluid is not restricted when the fluid flows in the constant direction...  
JP2012251596
To provide a constant flow rate valve capable of reducing noise generated when controlling a flow rate of wastewater substantially constant.The constant flow rate valve 33 controlling the flow rate of the wastewater W5 flowing through a ...  
JP2012247060
To provide a check valve for a spray nozzle, which includes a valve housing having a pipe shape, a shielding body and a valve seat where the shielding body is disposed movably in a lengthwise direction of the valve housing having a pipe ...  
JP2012237365
To provide a pressure regulator that stably opens and closes a valve body to thereby reduce vibration or abnormal noise.The pressure regulator 10 includes: a casing 12 including a valve chamber 20 having an entrance 21 and an exit 28, an...  
JP2012233512
To provide a supply and discharge adjusting apparatus and a supply and discharge adjusting system that can adjust an operation pressure (exhaust pressure) in accordance with a use state.The supply and discharge adjusting apparatus 3 incl...  
JP2012233501
To provide a valve device that can suppress pulsation by taking measures against a generation source of the pulsation, without enlarging the physical size.At least one of a valve body 13 and a valve port end face 12b where a valve port 1...  
JP2012225469
To effectively control the erosion of a contact region between a valve element and a valve seat.The butterfly valve 10 has the valve element 12 turnably disposed through a valve rod 15 and the valve seat 13 with which the valve element 1...  
JP2012211654
To provide a check valve that is easy to be manufactured and can suppress pulsation without deteriorating durability.An internal passage 51 moving according to differential pressure in an inlet-outlet port of a housing 2 is formed in a f...  
JP2012202463
To provide a motor-operated valve capable of preventing the generation of noise even when a refrigerant is filled inside an inflow pipe and an outflow pipe connected to a valve chamber and a differential pressure between inflow piping an...  
JP2012197880
To provide a damping valve capable of producing a stable damping force in a shock absorber by suppressing the oscillation of a valve body.A damping valve 1 includes a valve hole 3 equipped with an annular valve seat 4, a valve body 5 ins...  
JP2012197739
To provide a fuel injection valve for applying a proper damper action to a needle part that is switchably operated for fuel injection, in the fuel injection valve of an internal combustion engine.The fuel injection valve includes: an inj...  
JP2012179165
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...  
JP2012180935
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...  
JP2012177470
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...  
JP2012172684
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...  
JP2012172717
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...  
JP2012167800
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...  
JP2012145123
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...  
JP2012127505
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...  
JP2012107698
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...  
JP2012102779
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...  
JP2012092964
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...  
JP2012087906
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...  
JP2012087916
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...  
JP2012082896
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...  
JP2012082932
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...  

Matches 401 - 450 out of 1,839