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JP2012031923 |
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...
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JP2012032248 |
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...
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JP2012021633 |
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 ...
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JP2012017799 |
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...
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JP2012017835 |
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...
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JP2012017796 |
To provide a relief valve which can damp sound and vibration caused when a member constituting the relief valve abuts on the other members in operation.The relief valve includes: a valve body 2 having a first port 11 and a second port 12...
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JP2012007640 |
To provide a relief valve having a simple configuration and capable of smoothly opening and closing a valve.The relief valve includes a valve element 100 having a passage hole 110 formed therein for passing fluid, a stem 200 opening and ...
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JP2012007639 |
To provide a check valve capable of preventing chattering when the valve is opened and closed, and thereby stably controlling a flow rate of fluid.The check valve has a poppet 300 provided in a valve element 100 configured in such a mann...
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JP2012002268 |
To reduce noise caused by a valve element which sits on an annular valve seat repeatedly.A valve chamber 3, which communicates an inflow port 4 with an outflow port 5, is formed in valve casings 1, 2. The annular valve seat 7 having a va...
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JP2011256951 |
To improve a normally closed solenoid valve device provided with a damper chamber for reducing the vibration of the mover to minimize the entry of air into the damper chamber to thereby stabilize the damping performance of the damper cha...
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JP2011256893 |
To provide a solenoid valve capable of reducing body size and suppressing vibration of a fluid pressure.A spool 20 provided inside a cylindrical sleeve 10 reciprocally movably in the axial direction includes a first land 21 which opens a...
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JP2011256864 |
To provide a flow guide valve sheet for a steam turbine valve.A flow valve (10) includes: a control valve (20) having a movable body; a stop valve (24) having a movable body; and a valve seat (48) having a facing surface that contacts at...
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JP2011257004 |
To provide a flow restrictor with a small pressure drop, which does not loose the most part of desired nonlinearity.A flow restrictor with a first disk having at least one inlet and at least one outlet and a flow path and a second disk h...
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JP2011241904 |
To provide a proportional poppet type two-stage high-speed solenoid valve having a vibration absorber, which is capable of performing a high-speed operation and power saving while preventing inner leakage even when water is used as a wor...
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JP2011236949 |
To provide a valve device enabling adjustment of an inter-surface distance and a valve opening using a magnetic material as a valve closure mechanism.In valve boxes 1, 2 having an inflow port (primary side) and an outflow port (secondary...
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JP2011236962 |
To provide a cage type pressure reducing structure in which occurrence of noise, vibration, cavitation, or the like in pressure reduction of high pressure fluid is suppressed, and stable control can be achieved, in a low noise type regul...
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JP2011227844 |
To provide a gas pressure reduction valve configured so that an attaching/detaching operation of a silencer may be reduced.A governor 10 of the present invention includes: a gas outflow chamber 21 disposed beneath a gas inflow chamber 20...
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JP2011226513 |
To provide a chamber device capable of reducing pressure pulsation propagated from a piping interior to a canister during opening and closing driving without enlarging a shape.The solenoid valve device includes a valve case part VC havin...
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JP2011220210 |
To provide a fuel injection device and a fuel injection nozzle which promote atomization of an injection fuel of an internal combustion engine.The fuel injection device 10 includes an injector 100 which includes a spiral fuel guide groov...
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JP2011202759 |
To provide a solenoid valve easily reducing water hammering.In the solenoid valve 1, a plunger 4 is provided inside a solenoid 3, the plunger is advanced and retreated toward a valve seat 7 arranged between a primary side flow passage 9 ...
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JP2011190897 |
To reduce refrigerant noise or the like in a changeover while certainly performing the changeover operation of a pilot valve body even when a high-pressure refrigerant pressure is applied to the pilot valve body of a pilot valve, in a fl...
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JP2011185391 |
To surely perform a damping force adjustment and fail-safe operation and to prevent free movement in a hole which is an arranged part of a main valve including a poppet valve element for making the damping force adjustment.The damping va...
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JP2011185390 |
To surely perform a damping force adjustment and fail-safe operation and to prevent free movement in a hole which is an arranged part of a main valve including a poppet valve element for making the damping force adjustment.The damping va...
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JP2011174234 |
To provide a water saving valve which achieves labor saving in manufacturing and the prevention of a theft in use by simplifying a valve structure of a flow control valve.In the water saving valve A, a sluice block is incorporated in a w...
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JP2011169383 |
To provide a steam valve device and a steam turbine power generation apparatus capable of ensuring and maintaining the steam flow consistency in a flow passage formed between a valve element and a valve seat in an opening/closing process...
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JP2011169404 |
To prevent a failure of a solenoid valve resulting from freezing of water penetrated into a gap between a plunger and a closed end side of a plunger housing section.The solenoid valve 1 includes: a solenoid 21; a plunger housing section ...
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JP2011153684 |
To enable a water hammer shock absorber to be easily mounted while ensuring a function of alleviating water hammer shock due to water hammer phenomena.An outer case 1 is provided with an inlet 6 located on an upstream side and an outlet ...
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JP2011132970 |
To provide a bellows valve which is compact and operated with low operating force and which has quick response, high reliability, and high economic efficiency.In this bellows valve, a valve element 3 is moved from a valve seat surface in...
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JP2011127728 |
To provide a solenoid linear valve of simple structure capable of restricting outbreaks of self-excited vibration.This solenoid linear valve 10 includes: a housing 20 having a partitioning part 30 partitioning the housing into a first li...
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JP2011122503 |
To provide a steam valve inhibiting steam leaking from a gap between a valve rod and a guide bush from rapidly expanding and preventing erosion of the valve rod by the leaked steam.A plurality of labyrinth grooves 32a to 32e in a circumf...
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JP2011117557 |
To provide a pressure regulating valve that can further surely reduce the occurrence of noise caused by self-excited vibration of a ball valve.The pressure regulating valve 10 includes a valve housing 11 having an inflow port 16 and a di...
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JP2011106577 |
To provide a fluid control valve capable of suppressing oscillation of fluid pressure, while suppressing degradation in pressure controllability.The fluid control valve 10 includes a bottom plate 12, a body 14, and a cover 16. The body 1...
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JP2011106576 |
To provide a fluid control valve suppressing oscillation of fluid pressure, while suppressing degradation in pressure controllability.The fluid control valve 10 includes a bottom plate 12, a body 14, and a cover 16. An inlet port 18 and ...
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JP2011094788 |
To solve a problem that since pressure at an upper portion of a piston will drop instantaneously at the moment when a pilot valve is opened and closed, a large pressure difference is formed between the upper and lower sides of the piston...
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JP2011080571 |
To minimize the generation of vibration, and to suppress noise satisfactorily by a simple and economical configuration.The check valve 10 includes a body 12 including a fluid passage 14; a valve mechanism 28 including a valve seat 16 pro...
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JP2011075094 |
To provide a valve device which prevents or reduces defects such as generation of its abnormal sounds.A switching device used for a circuit for pressure-feeding air to a septic tank displaces a position of a valve member 34 from a first ...
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JP2011064221 |
To prevent the occurrence of a sounding phenomenon of an exhaust valve caused by the opening and closing motion of a valve element.In the exhaust valve 23, when pressure in a primary side port 24 becomes equal to or larger than a predete...
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JP2011064272 |
To provide a check valve which can suppress noise generation as much as possible by preventing chattering without damaging a water stopping function entirely.The check valve is equipped with: a cup-like valve seat which has an outflow ho...
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JP2011064301 |
To provide a hot and cold water mixing device for mixing inflowed hot and cold water as uniformly as possible.The hot and cold water mixing device includes: a body casing formed with a hot water inflow port formed with a hot water side v...
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JP2011052816 |
To provide a method and a device for evading easily pipe resonance even when the pipe resonance occurs, using a volume of a valve cavity part in a valve box, and a valve device.This device or the like includes a gate valve 2 having the v...
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JP2011047483 |
To provide a solenoid valve capable of effectively dampening an allophone by a relatively simple construction.The solenoid valve 100 includes a sleeve 108 formed with two or more actuation liquid paths 108e and 108f, a seat 106 attached ...
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JP2011038542 |
To provide a solenoid valve capable of suppressing self-excited vibration resulting from air bubbles.A solenoid valve 100 consists of a housing which includes a working fluid passage 106a forcing working fluid flowing therein and a worki...
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JP2011033165 |
To easily maintain the function of a check valve and to easily suppress chattering of a valve element when filling high pressure gas.In the non-filled state of gas with a receptacle 150 removed from a nozzle 350, magnetic force of an ele...
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JP2011027148 |
To effectively reduce refrigerant passing noise, by increasing a capacity of a valve chamber, without increase in size of a valve body or a guide bush.A straight hole 10 is formed to the valve body 2 of an electric valve A, and the guide...
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JP2011002028 |
To inhibit noise while suppressing energy loss even when the distance between a high pressure port and a low pressure port of a casing inner wall surface is not sufficient and grooves with length necessary for reducing noise cannot be ma...
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JP2010270900 |
To provide a valve device of simple structure capable of suppressing the generation of self-exciting vibration in a valve element.The valve device includes: a valve casing 10 constituted to be continued in a direction where an upstream f...
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JP2010242953 |
To provide a flow amount throttle device having relatively simple construction for easily adjusting a throttle amount while achieving a smaller size.The flow amount throttle device includes a shaft body 101, and a housing 102 having a th...
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JP2010203616 |
To reduce a valve chatter produced when a valve opens, in a check valve which is mounted in a bore in a housing or other elements to allow a fluid to flow in only one direction, and which is biased by a biasing member.The check valve, wh...
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JP2010169197 |
To provide a valve device capable of guiding a fluid from an inlet port to an exit port via a valve port, when opening a valve.A valve element 2 is provided in an inside of a valve chest 16 of the valve, to be movable along an valve open...
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JP2010169133 |
To provide such a valve seat construction that a valve is maintained closed as far as a move distance (a lift) of the valve element, corresponding to a low opening degree in a conventional method by which chattering easily occurs, and th...
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